496results about "Abrasive feeders" patented technology

The utility model relates to an intelligent cleaning device for a sand box, and belongs to the field of industrial automation and intelligent manufacturing. According to the scheme, the rail type RGV is adopted to automatically convey the sand box to the closed intelligent cleaning work station, and the information of the sand box is read through the RFID tag and synchronized to the information system. The cleaning robot scans the position of the sand box through the visual recognition device, and the tool changing robot grabs the adaptive drill bit from the drill bit tool library according to a system instruction and assembles the adaptive drill bit to the electric hammer chuck. And the cleaning robot drills and dredges the sand guide hole of the sand box, returns to the quick change frame to replace the electric pick, and performs multi-angle shoveling and scraping operation on the cavity of the sand box. And after cleaning is completed, the cleaning robot is switched to the sand blasting gun, and fine sand cleaning on the surface of the sand box is completed. The scheme aims at solving the problems that traditional manual cleaning is low in efficiency, severe in environment and large in potential safety hazard.

A surface polishing method for micro inner flow channel, a micro inner flow channel part and a polishing medium. The diameter of the micro inner flow channel is less than or equal to 3 mm and length-diameter ratio is greater than or equal to 50:1. A polishing medium including a liquid phase and a solid phase, and viscosity of the liquid phase <1000 cP, the solid phase includes abrasive particles; a predetermined pressure being set on the polishing medium, making the polishing medium flow in the micro inner flow channel at a flow velocity more than 5 m / s, and flow rate of the polish polishing medium flowing into the micro inner flow channel at one end reaches a saturation flow rate allowed by the bore of the micro inner flow channel, making the hydraulic pressure inside the inner flow channel be in a pressure holding state.

The invention relates to the technical field of anchor withdrawing vehicles, and discloses an abrasive jet cutting anchor withdrawing vehicle and a using method thereof. The mechanical arm comprises an adjusting arm, a multi-section arm, an executing arm and an adjusting assembly; the adjusting assembly comprises a first connecting rod, a second connecting rod, a driving shaft and a hydraulic cylinder, one end of the first connecting rod is rotationally connected with the adjusting arm, one end of the second connecting rod is rotationally connected with the head section of the multi-section arm, and the other ends of the first connecting rod and the second connecting rod are rotationally connected through the driving shaft; the output end of the hydraulic cylinder is rotationally connected with the driving shaft. According to the abrasive jet cutting anchor withdrawing vehicle and the using method thereof, the mechanical arm is adjusted to be in the limit contraction state, and the moving convenience of the abrasive jet cutting anchor withdrawing vehicle in a roadway is greatly improved; the mechanical arm is adjusted to be in the ultimate extension state, and the high-altitude anchor cable withdrawing device can be suitable for high-altitude anchor cable withdrawing under the condition that the requirement for the overall length of the mechanical arm is small.

A mixed abrasive synergistic enhancement immersion microjet processing system and method for RB-SiC ceramic microstructures is characterized by: the micro-abrasive air jet nozzle is driven by an active rack and driven gear, and one end is connected to a precision sandblasting machine containing micron-sized abrasive particles; its output end is immersed in a slurry tank containing submicron / nano-sized abrasive particles; the micro-abrasive air jet nozzle ejects a gas-solid two-phase flow and generates a large number of microbubbles; the driving effect of the microbubbles effectively mixes the submicron / nano-sized abrasive particles in the slurry tank with the gas-solid two-phase flow ejected by the micro-abrasive air jet nozzle, thereby obtaining a mixed abrasive synergistic enhancement immersion microjet; the waste liquid passes through a primary filter particle recovery outlet, a secondary filter particle recovery outlet, and a tertiary filter particle recovery outlet in real time, where the micron-sized abrasive particles and erosion debris are screened, dried, and classified for collection, ultimately achieving efficient and high-quality processing of RB-SiC ceramic microstructures.

The invention relates to the technical field of abrasive material supply, and discloses a remote abrasive material continuous supply quantitative sand feeding system which comprises a remote abrasive material supply module and a continuous quantitative sand supply module, the remote abrasive material supply module comprises a sand storage box, a connecting hose and a sand supply tank, the connecting hose is provided with a non-return assembly, the sand supply tank is provided with an air blowing valve, and the sand supply tank is provided with a sand outlet; the continuous quantitative sand supply module comprises a sand blasting assembly and a sand supply hopper, the sand supply hopper is provided with a sand inlet, a sand outlet is communicated with the sand inlet through a sand supply pipe, the sand supply tank is provided with a first exhaust valve, the sand supply hopper is provided with a second exhaust valve, the sand blasting assembly comprises a sand supply roller and a driving part, and the sand supply roller is provided with a tooth groove; the non-return assembly is arranged to separate the sand storage box from the sand supply tank, so that the sand storage box is in a normal-pressure state, materials can be fed into the sand storage box at any time, and abrasive fine sand can be continuously conveyed for a long distance under the action of dual driving of gravity and air pressure difference by combining with mutual matching of the non-return assembly and the blowing valve.

The invention relates to a dynamic lag compensation method for inclined hole machining of a base of a water jet cutting machine. The dynamic lag compensation method comprises the following steps that S1, machining parameters are obtained; s2, establishing a dynamic lag vector model; s3, based on the target axis vector of the inclined hole, establishing an asymmetric taper prediction model; s4, coupling the dynamic lag vector model and the asymmetric taper prediction model to generate a comprehensive compensation model; s5, real-time reverse compensation is conducted on a preset inclined hole cutting theoretical tool path; s6, the high-pressure abrasive water jet device is controlled to conduct inclined hole machining on the cutting machine base according to the execution path; and S7, in the cutting process, water jet pressure, abrasive flow and nozzle abrasion state parameters are built in real time. The method has the following advantages that accurate compensation of the dynamic hysteresis effect and effective suppression of the asymmetric taper are achieved, the hole axis and position precision is remarkably improved, and the high-quality hole wall shape is obtained.

The invention relates to the technical field of titanium sponge production reduction furnaces, in particular to an automatic cleaning device for a titanium sponge production reactor and a control method, and the device comprises a sand blasting cleaning machine, a compressed air conveying unit and a cleaned material separation device; the sand blasting cleaning machine comprises a sand blasting unit, a material recovery unit and an automatic reactor cleaning trolley device with eight groups of fixed pulleys, and the sand blasting unit is provided with a sand blasting cleaning rod, a sand blasting pre-storage control unit, a compressed air storage unit and a compressed air control unit. The material recycling unit is provided with a cleaned material adsorption device, a cleaned material recycling and transferring unit and a recycled cleaned material conveying pipeline; a compressed air inlet pipeline is connected with a compressed air conveying unit and a compressed air control unit; according to the control method, forward cleaning and reverse cleaning are carried out, the pressure of 0.6-0.7 Mpa is maintained, cleaning sand of 0.5-2.0 mm is adopted, and cleaning is completed within 40-60 minutes. The device is high in automation degree, stable in cleaning quality and capable of protecting the reactor, reducing cost, improving efficiency and eliminating potential safety hazards.

This invention discloses a processing method for thermal spraying of flat workpieces. The processing method includes: taking a flat workpiece to be processed and constraining it using a processing fixture, the processing fixture including a support platform and a constraint component; placing the flat workpiece on the support platform and pressing the flat workpiece onto the support platform using the constraint component; operating a sandblasting device and a spraying device to sequentially perform sandblasting and spraying treatments on a first working surface of the flat workpiece; removing the flat workpiece, flipping it over, and pressing the flat workpiece onto the support platform again using the constraint component; operating the sandblasting device and the spraying device again to sequentially perform sandblasting and spraying treatments on a second working surface of the flat workpiece; removing the flat workpiece after sandblasting and spraying treatments and placing it in a heat treatment furnace for heat treatment to obtain the finished flat workpiece, maintaining the stability of the workpiece in the secondary processing, and improving the reliability and efficiency of the thermal spraying operation.

The invention discloses a long-service-life steel shot grading rounding device, and belongs to the technical field of steel shot rounding, the long-service-life steel shot grading rounding device comprises a feeding mechanism used for feeding steel shots and a main body frame body, and the main body frame body is provided with an impact mechanism used for conducting preliminary rounding on the steel shots and a grading mechanism used for conducting grading rounding on the steel shots; a three-stage collaborative rounding process of pre-grinding, impact grinding and fine grinding is set, firstly, a grinding plate which rotates in a steel shot box and is provided with a rough surface and a non-uniform grinding column is used for carrying out primary dispersion and corner angle grinding on steel shots, and primary regularization is achieved; the steel shots are subjected to strong and multi-angle impact grinding and efficient sharp edge removal by utilizing the impact block which rotates at a high speed and is provided with bulges on the surface, and finally, in the grading grinding cylinder, the lower grinding plate performs continuous fine grinding and rolling, so that the surface smoothness is ensured, and the geometric consistency and the surface quality of the steel shots are improved.

The invention particularly discloses a sand blasting and coating integrated production device used after PE sheet extrusion. The sand blasting and coating integrated production device comprises an unwinding roller, a machine body and a drying box which are continuously arranged. A plurality of guide rollers are arranged on the machine body and used for guiding the PE sheets on the unwinding roller into the drying box; a surface treatment mechanism, a glue spraying mechanism and a glue scraping mechanism are sequentially arranged on the machine body in the movement direction of the PE sheet; the surface treatment mechanism comprises a main shell, and a sand blasting treatment assembly is arranged on one side of the main shell and used for conducting sand blasting cleaning on the surface of the PE sheet. A processing roller assembly is arranged at the bottom of the main shell and used for conducting galling processing on the PE sheet. And a suction assembly is arranged on the other side of the main shell. Through process integration and structure optimization, the production efficiency is improved, the product quality is guaranteed, meanwhile, environment-friendly and energy-saving production is achieved, and the device has remarkable technical advantages and practical value and can be widely applied to large-scale machining and production of PE sheets.

The application discloses a workpiece surface sand blasting and grinding device for insulating bearing machining, and relates to the technical field of insulating bearing machining.The device comprises a shell, a baffle and a cover plate are installed on the shell, an air pump is installed on the top of the shell, a first connecting pipe is connected below the air pump, a driving assembly is installed below the first connecting pipe, a rotating ring and a second connecting pipe are installed below the driving assembly, a third connecting pipe and an electric push rod are arranged on the side of the second connecting pipe, a first sand blasting pipe is installed below the electric push rod, a second sand blasting pipe is hinged to the first sand blasting pipe, a butt joint assembly is installed between the first sand blasting pipe and the second sand blasting pipe, the top of the third connecting pipe is fixedly connected with a first extension pipe, and a second extension pipe is slidably installed on the outer side of the first extension pipe.The device solves the problems that the existing sand blasting device cannot switch between the inner wall sand blasting and the surface sand blasting of the bearing seat ring and cannot recycle the abrasive.

A method (300) of smoothing an inner surface of a tubular wall (232, 262, 264) of a workpiece (136, 224, 236, 260) is disclosed, including immersing (310) the workpiece in a mixture of a liquid and an abrasive and inserting (312) a cavitation peening nozzle (142, 212) into a cavity of the workpiece. The method further includes injecting (314) a cavitating jet from the cavitation peening nozzle into the cavity.

The utility model discloses a pipeline self-adaptive chain type cutting device, and belongs to the technical field of cutting control. Comprising a hydraulic motor which is connected with a speed reducer and provides power for the speed reducer. The speed reducer is installed on an adjusting plate through a support in the adjusting assembly, a telescopic mold spring is arranged between the adjusting plate and the bottom plate, a pull rod is sleeved with the mold spring, and the upper end and the lower end of the pull rod are connected with the adjusting plate and the bottom plate respectively; trundles are arranged on the lower end face of the bottom plate and placed on the pipeline. An output shaft of the speed reducer is connected with a gear, a chain is mounted on the gear, and the other end of the chain is hooped on the pipeline; a tool bit is installed on the upper end face of the bottom plate through a connecting assembly, and the pipeline can be cut through abrasive water jet. According to the chain type pipeline cutting machine, the mold spring is used, the chain length and the chain tensioning degree actually needed by the chain type pipeline cutting machine are adjusted in a self-adaptive mode according to the pipeline curvature radius and the curved surface flatness condition, and it is guaranteed that the cutting process and quality are safe and reliable under the flammable and explosive dangerous environment condition.

The utility model provides a kind of nozzle (10) for cavitation surface treatment, the nozzle (10) for cavitation surface treatment has nozzle head (13), the nozzle head (13) has: first plane (13a), it sprays liquid, and with jet axis (1) vertical;Second plane (13b), it is vertical with jet axis (1), is the opposite side of first plane (13a);Nozzle hole (21), the nozzle hole (21) has: semicylindrical discharge groove (23), it is configured in first plane (13a), extends in the first direction with jet axis (1) vertical;Ejection hole (25), it extends along jet axis (1), and is connected with discharge groove (23), and for the straight elliptical cylinder with long diameter in the first direction extending ellipse-shaped section;Import portion (27), it has straight conical surface (27a) with jet axis (1) as central axis, and is connected to ejection hole (25).

This invention relates to the field of dental tray printing technology, specifically to a method for post-processing the surface of 3D-printed transparent dental trays, comprising the following steps: Step 1, cleaning the dental tray print using a resin cleaner; Step 2, polishing the cleaned dental tray print to remove surface defects; Step 3, forming a fluid resin layer with a thickness of 8-15 μm on the surface of the dental tray print; Step 4, curing the fluid resin layer to obtain the finished dental tray. This application can produce dental trays with high transparency. In this application, a fluid resin layer with a thickness of 8-15 μm is formed on the surface of the dental tray print, and the fluid resin layer is then cured. At this point, the outer surface of the finished dental tray is the outer surface of the fluid resin layer. The fluid resin layer can be used to fill in scratches caused by the polishing process, preventing these surface defects from affecting the transparency of the finished dental tray.

The rust removal and spraying robot comprises a wall climbing robot, a sand blasting and rust removal mechanism and a coating spraying mechanism are mounted at the top of the wall climbing robot, the sand blasting and rust removal mechanism is used for removing rust on the surface of a tower drum of the wind turbine generator, and the coating spraying mechanism is used for spraying the rust-removed position. A negative pressure recovery mechanism is installed at the bottom of the wall-climbing robot and collects pollutants drifting away in the rust removal and spraying process. The sand blasting derusting mechanism comprises a sand tank, and an air compressor, a control valve and a sand nozzle are installed on the sand tank. The device has the advantages of being safe and efficient, and the problems that when rust removal and paint spraying are conducted on a tower drum of an existing wind turbine generator, falling accidents are likely to happen through manual rust removal and spraying, the safety is reduced, a wall-climbing robot needs to be independently provided with a rust removal mechanism and a spraying mechanism, the working efficiency is low, and the maintenance cost is increased are solved.

The utility model discloses a grinding material sand supply device with multiple sand feeding ports, which comprises a grinding material tank, a sand discharging port of the grinding material tank is connected with an inlet of a sand supply valve, and an outlet of the sand supply valve is connected with a grinding material distributor which is used for uniformly distributing grinding materials provided by the sand supply valve to a plurality of sand feeding pipes. And one sand supply valve can control the opening or closing of a plurality of sand conveying pipes. According to the abrasive material sand supply device with the multiple sand feeding ports, the abrasive material distributor for uniformly distributing the abrasive material to the multiple sand feeding pipes is connected with the outlet of the sand supply valve, the connection structure is simple, multi-nozzle sand supply is realized by adopting one abrasive material tank, one sand discharging port and one sand supply valve, the number of component parts of a system during multi-nozzle sand supply is reduced, and the cost is reduced. And the system is simpler.

This invention relates to long-distance sandblasting technology, specifically a sandblasting device comprising a frame, a sandblasting pipe winding and unwinding device, a sandblasting machine, and an air supply slip ring. The sandblasting pipe winding and unwinding device includes a winding disc, a winding disc drive component, and a winding disc guide component. The winding disc is mounted on the frame via the winding disc guide component. The sandblasting machine is mounted above the sandblasting pipe winding and unwinding device and rotates together with it. The sandblasting pipe is wound layer by layer onto the winding disc. The air supply slip ring supplies air to the sandblasting machine, and the power supply slip ring supplies power to the sandblasting machine. The sandblasting pipe winding and unwinding device and the sandblasting machine form a rotating whole. The sandblasting pipe is wound in the sandblasting pipe winding and unwinding device, which can provide a very long sandblasting pipe for long-distance sandblasting operations. The air source required by the sandblasting machine is supplied by the air supply slip ring. The sandblasting pipe does not pass through the slip ring or other unnecessary connecting links, which helps to improve reliability, extend the service life of the sandblasting device, and reduce the consumption of spare parts and the workload of equipment maintenance.

The invention discloses a method for automatically adjusting the sand blasting pressure of a spray gun based on BSD equipment, and particularly relates to the technical field of semiconductor device manufacturing. S2, reference pressure matching; s3, carrying out real-time multi-dimensional monitoring; s4, dynamic pressure adjustment; and S5, performing closed-loop verification and correction. According to the method for automatically adjusting the sand blasting pressure of the spray gun based on the BSD equipment, the initial flatness, the edge thickness difference and the target damage layer depth of the back face of a silicon wafer are collected through a high-precision laser contourgraph, and a silicon wafer parameter-sand blasting pressure mapping model trained through 1000 or more sets of data is called to determine adaptive reference pressure; and during sand blasting, a micro pressure sensor, a machine vision system and an abrasive flow sensor are combined to realize multi-dimensional real-time monitoring, so that the problems of insufficient depth and incomplete coverage of a damaged layer or edge breakage and cracks of a silicon wafer are effectively avoided.

The utility model provides a feeding system of a vertical shot blasting machine, which comprises a mounting frame arranged beside the vertical shot blasting machine, a travelling crane which transversely reciprocates is arranged at the top of the mounting frame, the travelling crane is connected with a chain elevator, the chain elevator comprises a bottom frame and a supporting plate which rotates relative to the bottom frame, the mounting frame is further connected with a guide chute, and the guide chute is connected with a feeding hopper. The lower end of the guide chute extends into a feeding hole of the vertical shot blasting machine; the track is fixedly arranged relative to the mounting frame, the feeding trolley moves on the track, and the feeding trolley can move to the supporting plate at the lowest position through the track. The feeding structure solves the problem that a feeding structure in the prior art is not suitable for a larger vertical shot blasting machine.

Device for producing a solid cryogenic abrasive from water, characterized in that the cryo-tube and loading unit form a single unit, wherein one or more spray nozzle blocks, equipped with identical or different interchangeable spray nozzles, are arranged in the cone of the cryo-tube such that the water can be sprayed from below into a cold nitrogen atmosphere of the cryo-tube, and the amount of nitrogen required for ice formation can be introduced from nitrogen nozzles attached to the tube and the lid, and the frozen water droplets immediately fall from the cryo-tube into the loading unit for absorption into the transport gas stream, assisted by the gas pressure generated during freezing.

The drum-type sand blasting machine comprises a machine box, the machine box is provided with a sand blasting chamber, a drum capable of rotating around the axis of the drum is arranged in the middle of the sand blasting chamber in a turnover mode, and the sand blasting chamber is sequentially provided with a feeding port, a sand blasting assembly and a discharging box along the turnover circumference of the drum. A feeding position, a sand blasting position and a discharging position facing the feeding port, the sand blasting assembly and the discharging box are formed in the roller in the overturning process, and the roller can be freely switched among the feeding position, the sand blasting position and the discharging position so that parts to be machined can be poured into the discharging box after being subjected to sand blasting machining. The whole structure is small, manual feeding and discharging are not needed, and the whole machining efficiency is improved.

A system for producing a powder-gas jet for performing a dental treatment, wherein the system is configured for being connected to a dentist chair by a connection, wherein the connection of the system to the dentist chair allows the system to be fed by a pressurized gas flow, the system comprising a compressed gas circuit configured to direct the pressurized gas flow into a powder-gas-mixing chamber to form a gas-powder mixture, the system being wherein the compressed gas circuit comprises at least a pressure regulation device having an inlet and an outlet, the regulation device being configured to provide the pressurized gas flow with a pressure at its outlet that is independent of the pressure of the gas flow at its inlet, when it is fed by the pressurized gas flow.

The utility model relates to the technical field of handheld sand blasting machines, and discloses a handheld sand blasting machine, which comprises a working table, a sand grain container, a spray gun and a sand blasting box, a processing table is fixed at the bottom position in the sand blasting box, and a support plate is fixed at the bottom end of a suspension rod. The processing table is fixedly mounted at the bottom in the sand blasting box, the left side edge of the processing table is inclined, so that waste materials generated during sand blasting can be discharged from the discharge port, the water tank is mounted at the top of the sand blasting box, inlet water treatment is performed at the water inlet, and the process is filtered by the filter plate, so that the waste materials can be discharged from the sand blasting box. After a water pump is started to work, a water source in a water tank is pumped under the connection of a first drainage pipe, then the water source is drained into a water storage pipe after being drained through a second drainage pipe, the purpose of cleaning a workpiece is achieved through uniform spraying of a spraying head, and therefore the overall cleaning capacity is well improved in the working process.

This invention provides a pre- and post-mixing combined abrasive waterjet mechanism and method, comprising an ultra-high pressure waterjet device, a high-pressure abrasive waterjet device, and a jet mixing and accelerating device. The ultra-high pressure waterjet device and the jet mixing and accelerating device are further subdivided, with several high-pressure abrasive waterjet devices, all inclined relative to the ultra-high pressure waterjet device. The jet mixing and accelerating device includes a mixing chamber, a mixing jet nozzle, and a locking assembly. The mixing chamber has several mounting holes, one of which communicates with the ultra-high pressure waterjet device, while the other mounting holes connect to their corresponding high-pressure abrasive waterjet devices. At least one high-pressure abrasive waterjet device is connected to the mixing chamber. This invention first forms a pre-mixed abrasive waterjet, then forms a higher-velocity ultra-high pressure waterjet for secondary acceleration, thereby significantly increasing the abrasive particle velocity and improving the jet cutting effect.

The application provides a high-altitude fixed cableway reinforced grinding device, which comprises a support, a grinding device, a cleaning device, a lubricating device and a walking device. The grinding device comprises a grinding box body, a spray head frame arranged in the grinding box body, a plurality of high-pressure material spray heads mounted on the spray head frame, a grinding material tank connected with each high-pressure material spray head and an air compressor connected with the grinding material tank. The cleaning device comprises a cleaning box body and a cleaning roller arranged in the cleaning box body. The lubricating device comprises a first motor, a first transmission mechanism connected with the first motor and a lubricating roller connected with the first transmission mechanism. The walking device comprises a driving walking wheel set, a passive walking wheel set, a second motor and a second transmission mechanism. The second motor is drivingly connected with the second transmission mechanism, and the second transmission mechanism is drivingly connected with the driving walking wheel set. The application can reinforce and grind the high-altitude fixed cableway, thereby improving the service life and safety and reliability of the high-altitude fixed cableway.

The utility model belongs to the field of sand blasting equipment, and particularly relates to water sand circulating equipment of a sand blasting machine, which comprises a support frame, an adjusting structure is arranged on the support frame, and a circulating structure is arranged on the adjusting structure; according to the water sand circulating equipment of the sand blasting machine, through the arrangement of a circulating structure, a first driven gear and a second driven gear drive a first rotating shaft and a second rotating shaft to rotate correspondingly under the action of a driving gear, a stirring frame rotates along with the first rotating shaft and the second rotating shaft, and gravel accumulation in a circulating box can be prevented; the problems that when a sand-water mixture is collected, gravels are gradually deposited, then the proportion of sand grains in the sand grains and water mixture is low, and the subsequent sand blasting quality is affected are solved.

The utility model discloses a quantitative blanking structure for a shot blasting machine, and relates to the technical field of shot blasting machines. The shot blasting device comprises a shot blasting device body, a weighing device is arranged on the left side of the shot blasting device body, a support is installed at the bottom of the weighing device body, connecting plates are fixedly connected to the front face and the back face of the shot blasting device body, the shot blasting device further comprises a quantifying part, and the quantifying part is installed above the weighing device body and used for quantitatively adding shots; and the feeding part is mounted at the bottom of the weighing device, and the feeding part is used for conveying the pellets into the shot blasting device. According to the shot blasting device, the quantitative part is arranged, specifically, the pellets are placed in the storage tank, the generated gravity can be pressed on the weighing device through the fixing ring, so that weighing is carried out, the required pellet dosage is determined, the pellet dosage is prevented from being too large or too small by adjusting the dosage, the efficiency and the effect of shot blasting treatment are guaranteed, and the shot blasting efficiency is improved. And the bottom of the storage tank is sealed through the sealing ring, so that the weighing precision can be improved.

A water source (224, 324, 404) having a flexible tube (227, 327, 406) for discharging water is provided for use in conjunction with a micro-abrasive blasting device (210, 310, 402) so that water may be dispensed onto or around or in close proximity with the distal end or tip of the discharge conduit (217, 317, 403) of said device to generate a water mist for suppressing powder aeration when dental procedures such as abrasion or polishing procedures are being performed. The water source may be separate from (FIG. 3, FIG. 4) or self-contained (FIG. 2) with the micro-abrasive blasting device. An overlay water nozzle (FIG. 5) may be used to position distal ends of the flexible tube and discharge conduit in close proximity with one another.

The invention relates to the technical field of shot blasting equipment, in particular to an anti-blocking shot blasting machine which comprises a pressure tank, one end of a material spraying hose is connected to the bottom of the pressure tank, a spray gun is mounted at the other end of the material spraying hose, and an anti-blocking device is arranged on one side of the pressure tank. And the anti-blocking device is used for automatically and completely discharging the residual spray material in the spray hose out of the spray hose after the shot blasting machine stops, so that the spray hose is prevented from being blocked by the spray material accumulation. A pipeline is additionally connected to the connecting position of the material spraying hose and the pressure tank to be connected with the energy accumulator, when the shot blasting machine is started, the air compressor can input air into the energy accumulator for energy storage, and after the shot blasting machine is closed, the energy accumulator can input the air in the energy accumulator into the material spraying hose, so that the energy storage effect is improved. The problems that after a shot blasting machine is shut down, part of spraying materials in a spraying hose cannot be discharged out of the spraying hose due to insufficient air pressure, so that the spraying materials are accumulated in the spraying hose, and the spraying hose is blocked are solved.