114 results about "Abrasive water jet" patented technology

The present invention provides a method for designing an abrasive water jet-disc cutter combined rock-breaking cutter head, a system therefor, a cutter head and a tunnel boring machine (TBM), wherein the key technology of designing the abrasive water jet-disc cutter combined rock-breaking cutter head of the TBM are provided from the aspects of determining a combined rock-breaking combination mode, configuration of cutter operation parameters and optimization of the combined cutter head; the performance of the abrasive water jet-disc cutter combined rock-breaking cutter head manufactured according to the optimized layout parameters is improved; and a new idea is provided for the development and application of a full-section rock tunneling machine in the field of underground engineering.

The present application relates to the manufacturing technical field of aero-engine blisk, in particular to an integrated forming machining method for blisk machining, which combines abrasive water jet rough machining, electrolytic machining and self-adaptive polishing machining to form an integrated machining method. First, the characteristics of the theoretical model of the blisk part are analyzed, simplified and reconstructed to build a water jet machining process model of the blisk. Then, the abrasive water jet equipment is applied to remove the material of the rough machining of the blade body. After that, the double-sided feeding electrolytic finishing method is determined to machine the blade body and the flow channel of the blisk. Then, the blade body and the flow channel are machined by a sand belt robot. Finally, the precision machining of the blisk is completed. The present application combines the advantages of abrasive water jet rough machining, electrolytic machining and self-adaptive polishing machining, re-plans the machining method and technical path of the blisk, effectively reduces the machining difficulty of the part, finally guarantees the dimensional accuracy and position accuracy of the part, and realizes the high-performance manufacturing and machining of the blisk.

The invention discloses a hydraulic drilling system for a while-drilling pipe pile and a construction method. The hydraulic drilling system comprises a pipe pile, a spiral drilling rod, a jetting and sucking pipe and a drill bit. The spiral drill rod is rotationally mounted in the pipe pile, and one end of the spiral drill rod penetrates through the pipe pile and is sequentially connected with the injection and suction pipe and the drill bit; the spiral drill rod is of a hollow structure, and the top end is connected with a slurry pump for inputting clear water. The injection-suction pipe is communicated with the spiral drill rod and the drill bit; an injection and suction cavity is formed in the injection and suction pipe, and a suction inlet is formed in the injection and suction cavity; when the jetting and sucking pipe conveys clean water, the jetting and sucking cavity can form a negative pressure cavity so that broken particles formed in the drilling process can be sucked through the suction inlet, and the broken particles and the clean water can form abrasive water jet. The drill bit has a nozzle assembly. By means of the arrangement, the functions of efficiently cooling the drill bit and assisting rock breaking and chip removal can be achieved only by inputting clear water, and the purposes of improving the hard rock drilling efficiency, prolonging the service life of equipment, simplifying a construction system and being environmentally friendly and free of pollution are achieved.

The invention discloses an abrasive water jet cleaning device and cleaning method.The abrasive water jet cleaning device comprises a cleaning box body, a spray head cleaning assembly and a conveying roller way, and the spray head cleaning assembly comprises a mounting frame, a mounting block and a spray head; the spray head cleaning assembly located on one surface of the steel plate / belt comprises a pair of installation frames, each installation frame is provided with a plurality of spray heads, the cleaning areas of the spray heads on the two installation frames cover the transverse width of the steel plate / belt after being combined, the spray heads on the two installation frames are obliquely arranged, and the spray heads on the two installation frames are arranged in a staggered mode. And the spraying directions of the sprayers face the two transverse sides of the steel plate / strip respectively. According to the cleaning device and the cleaning method, under the condition that optimal process parameters and spatial arrangement conditions of the spray head are met, extremely high part universality can be achieved, modular disassembly can be carried out, and the equipment site requirement can be reduced.

The invention relates to the technical field of mining cutting robots, in particular to a mining abrasive water jet continuous cutting operation robot. According to the robot, the vertical lifting mechanism and the seven-degree-of-freedom mechanical arm are integrated on the crawler walking vehicle, so that the robot obviously adapts to the complex working environment under the mine, the vertical working height of the mechanical arm can be adjusted through the vertical lifting mechanism, and the robot is matched with the rugged topography of a roadway to eliminate working blind areas; the seven-degree-of-freedom mechanical arm realizes full-dimensional adjustment of the posture of the nozzle by virtue of multi-joint linkage, and can be accurately aligned with cutting targets with complex contours such as rock wall special-shaped veins and irregular obstacles in a narrow space; the nozzle is connected with the abrasive water jet device through the hose, the flexible characteristic of the nozzle avoids constraint of a rigid pipeline on movement of the mechanical arm, the requirement for operation in a bent roadway or a narrow area is met, blockage or damage caused by rigid bending of the pipeline is prevented, and maneuverability and reliability in a complex space are improved. And the application scene of the abrasive water jet cutting technology in the mine field is expanded.

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 discloses a deep coal hydraulic breaking physical fluidization mining method. A vertical main shaft and an opposite horizontal well are arranged; the high-pressure water pump is connected with the sand tank and the water tank, the console and the high-pressure water pump are connected, the console and the ultrahigh-pressure water injector are connected, and the ultrahigh-pressure water injector is connected with the oscillating abrasive water jet drilling and slotting integrated tool to form drilling and slotting operation equipment; drilling an opposite fishbone well network; the oscillating jet flow spray head is combined with the slotting unit to perform slotting and cave forming operation; coal around the fishbone well is continuously mined in a fluidized form; fracture expansion is induced, and a high-quality complex fracture network is formed in the target coal seam; the extraction operation of desorption gas of the coal seam is completed by utilizing the mutually communicated complex fracture networks; injecting an oxidizing agent, igniting or detonating a methane-air mixture in the complex fracture network through electric shock ignition, and converting the coal into combustible gases such as hydrogen, methane and carbon monoxide in situ. By means of the method, fluidization mining operation of deep coal can be efficiently achieved.

The application provides a fir-type mortise and tenon joint structure deflection abrasive water jet strengthening method and system. The method uses a deflection abrasive water jet nozzle and a three-sided shielding strengthening tool to strengthen the surface of a workpiece. The system uses the above method. The application can solve the problems of "physical inaccessibility" (cannot enter) and "jet shadow" (cannot be sprayed / angle is not correct) of traditional strengthening tools in the extremely limited space of a fir-type mortise and tenon joint structure (deep groove, multiple teeth, reverse buckle), thereby realizing full coverage and uniform stress distribution of surface strengthening.

The invention discloses an abrasive water jet rock breaking simulation method based on a DEM-CFD coupling method. Establishing an EBPM bonded rock mass discrete element model through a discrete element DEM, and calibrating mesoscopic parameters through a virtual mechanical test; simulating a water-abrasive two-phase flow through fluid dynamics CFD, and adopting a Gidaspow drag force model; the DEM-CFD bidirectional interface realizes real-time coupling; carrying out post-treatment to extract an erosion morphology and a crack network; the method can effectively simulate the rock mass fracture process and the large deformation behavior in the water jet rock breaking process and reveal rock mass damage evolution from the microscopic scale, and can be widely applied to research of water jet assisted rock breaking in the fields of civil engineering, mining, petroleum energy, marine resources and the like.

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 invention relates to the technical field of mining engineering and coal mine roadway surrounding rock control, and discloses a face-mining working face small coal pillar roadway surrounding rock control method which comprises the following steps: reinforcing roadway bearing pressure by reinforced concrete pier studs: in a mining super front section small coal pillar roadway, pouring a row of reinforced concrete pier studs along the center line of the small coal pillar roadway, the upper end of the reinforced concrete pier column abuts against the center area of the vault of the small coal pillar roadway. The frosted water jet directional roof cutting pressure relief technology is adopted for lateral roof cutting at the advanced section of the stope, so that the hard rock stratum of the top plate of the stope face collapses as soon as possible; a plurality of steel pipe cast-in-place piles arranged at intervals are arranged at the bottom corners of the small coal pillar roadway, and a plurality of crown beams are fixedly connected to the ends of the steel pipe cast-in-place piles. The method for controlling the surrounding rock of the small coal pillar roadway of the face-mining working face is convenient to construct and good in economic benefit.

The invention relates to an electrochemical abrasive water jet sub-aperture machining device and method based on a semiconductor element, and belongs to the field of ultra-precision machining.The device comprises a water jet system, a direct-current power source, a mechanical arm and a conductive tray; the conductive tray is used for fixing a semiconductor element; the water jet system is used for conveying a polishing solution containing abrasive particles and forming a water jet to act on the semiconductor element; the manipulator is used for adjusting the position and the spraying angle of the water jet relative to the semiconductor element; the positive electrode of the direct-current power supply is connected with the conductive tray, and the negative electrode is connected with the water jet system for providing potential difference for the semiconductor element and the water jet. The oxidation area and the material removal area of the semiconductor element only occur in the water jet impact area, sub-aperture machining is achieved, machining of the curved surface or the surface microstructure of the semiconductor element can be achieved, non-contact machining is achieved, surface scratches and subsurface damage are avoided, and the polishing solution is the sodium chloride deionized water solution and is environmentally friendly.

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 belongs to the field of mechanical abrasive jet, and discloses an abrasive concentration automatic adjusting system, which comprises an abrasive jet device, a quality monitor and a data processing center, and further discloses an abrasive concentration adjusting method using the abrasive concentration automatic adjusting system, which comprises the following steps: S1, performing abrasive water jet operation, wherein the data processing center automatically calculates the current abrasive mass concentration C0 and compares it with the user input abrasive mass concentration C1 during the abrasive water jet operation; S2, storing the real-time working condition parameters, abrasive related information and servo proportional throttle valve opening calibration condition during the abrasive water jet operation in the data processing center; and S3, performing cleaning operation on the abrasive concentration automatic adjusting system for next use. Through the automatic adjusting system and the adjusting method, the user can directly set the required abrasive mass concentration parameters, and the system can be automatically calibrated with high parameter precision.

The present application relates to the technical field of intelligent detection and automation, and discloses a kind of surface cleaning device's jet flow nozzle fault on-line detection method.Just determine the pixel cleaning area of each nozzle in image;Collect historical images before and after strip cleaning and construct difference map based on color difference, establish surface cleaning quality detection model in combination with the highest and lowest original score, and set qualified standard;Real-time acquisition of images before and after cleaning input model score, identify unqualified images according to qualified standard and mark unqualified area;Semantic segmentation and morphological processing are carried out on the marked area, the contour boundary is extracted, and the faulty nozzle is located in combination with the pixel cleaning area.The method solves the problem of difficult positioning of nozzle fault in existing high-pressure abrasive water jet surface cleaning device.

The abrasive water jet spray head device for assisting deep-sea mining comprises a mixing cavity, an accelerating cavity, a developing cavity, a diffusing cavity, an abrasive inlet pipe, a rotational flow plate and a mixer, the mixer comprises a shell, a clockwise-rotating annular propeller, a counter-rotating annular propeller and a bipolar counter-rotating mechanism, and external high-pressure inflow water can directly enter the mixing cavity; abrasive materials can enter the mixing cavity through the abrasive material inlet pipe, the bipolar counter-rotating mechanism can drive the clockwise-rotating annular propeller and the counter-rotating annular propeller to rotate in different directions, the mixing degree of abrasive material water jet flow is improved, then the abrasive material water jet flow enters the accelerating cavity, the abrasive material water jet flow is accelerated through the gradually-shrinking structural design, and the crushing capacity is enhanced; after abrasive water jet enters the development cavity and the diffusion cavity, secondary mixing enhancement is achieved, meanwhile, four rotary outlets are formed through internal rotational flow plates, finally, four clusters of rotary jet can be sprayed out, and during mining operation, the abrasive water jet has excellent diffusion mixing performance and entrainment performance, and disturbance to the environment is reduced.

This invention belongs to the technical field of abrasive waterjet tunnel boring machine components, and provides a central rotating mechanism for a waterjet tunnel boring machine and a method for sand blocking. The central rotating mechanism includes a central tube shaft, one end of which is fixedly connected to the center of the tunnel boring machine cutterhead and rotates around the axis of the tube shaft with the rotating cutterhead; the input end of an abrasive conveying device is connected to a sand supply bin, and the output end is connected to the abrasive waterjet cutting terminal; an abrasive flow rate regulating device is installed on the abrasive conveying device to regulate the abrasive flow rate supplied to the abrasive waterjet cutting terminal; an abrasive mixing device is installed on the central tube shaft located inside the sand supply bin to mix the abrasive inside the sand supply bin; a high-pressure water conveying device outputs high-pressure water to the abrasive waterjet cutting terminal; and a high-pressure air conveying device outputs high-pressure air to the abrasive waterjet cutting terminal. This invention ensures a stable and effective supply of abrasive, high-pressure water, and high-pressure air to the tunnel boring machine.

The invention provides a rapid obstacle clearing system and method for an underground diaphragm wall on a pipe joint jacking line, belongs to the technical field of pipe jacking construction, and adopts a four-in-one system of laser positioning, ultrasonic detection, drilling grouting, ultrahigh-pressure abrasive water jet cutting and forced discharging and conveying to complete rapid obstacle clearing of the underground diaphragm wall on the pipe joint jacking line. The ultrahigh-pressure abrasive water jet device is adopted, compared with traditional mechanical breaking efficiency, the ultrahigh-pressure abrasive water jet device is high in breaking efficiency and small in vibration, compared with extensive management of traditional mechanical breaking construction, through application of the laser positioning technology, the ultrasonic detection technology, the BIM technology and the like, control over the underground diaphragm wall area position to be broken and the breaking sequence is more accurate, breaking construction safety is guaranteed, and the construction period is shortened. The problems of influence of broken residues on subsequent jacking construction, soil disturbance caused by the fact that a broken area exceeds a planned area, reduction of safety and reliability of an existing structure and the like are solved, during underground diaphragm wall breaking construction, the ground space does not need to be occupied, a working well does not need to be drilled additionally, surrounding traffic is not affected and the like, and construction is convenient and fast.

The invention belongs to the technical field of water jet, and discloses a pre-mixed abrasive water jet continuous operation system which comprises an abrasive box, a low-pressure water supply pipeline, a jet pump, a high-pressure plunger pump and a nozzle. The abrasive box is a non-closed box with the top open, the abrasive inlet end of the jet pump is communicated with the abrasive box, the low-pressure water inlet end of the jet pump is communicated with the low-pressure water supply pipeline, the outlet end of the jet pump is communicated with the low-pressure inlet end of the high-pressure plunger pump, and the high-pressure outlet end of the high-pressure plunger pump is communicated with the nozzle through a high-pressure pipeline. Abrasive slurry in the abrasive box comprises abrasive and a water medium with the liquid level always higher than that of the abrasive. Abrasive materials are placed in the low-pressure area on the front side of the high-pressure plunger pump before being fed and mixed, the adding point of the abrasive materials is located in front of the low-pressure inlet end of the high-pressure plunger pump, namely the pressure low-pressure area section of the whole system, the abrasive material box is in a normal-pressure environment, and on the premise that the follow-up high-pressure abrasive material water jet pressure is not affected, the abrasive materials are evenly mixed. And real normal-pressure, continuous and convenient feeding is realized.

Tunnel boring machine loaded with abrasive water jet assisted rock breaking and pile cutting complete equipment, belonging to the technical field of abrasive water jet tunnel boring machines, includes ultra-high pressure water, abrasive, and gas passing through the integral cutter head center rotation system of the tunnel boring machine, the cutter for tunnel boring machine and the abrasive water jet composite front main cutting gun, and the cutter for tunnel boring machine and the abrasive water jet composite edge main cutting gun. The sand supply, compressed air, and water are evenly divided into static and dynamic parts. There are two main cutting guns on the cutter head to achieve continuous supply of sand, gas, and water in a rotating state. The static sand bin sand inlet is above to ensure that each sand distribution port has sand, and the water distributor has less energy loss and smaller volume.

The present invention provides a micro abrasive water jet polishing system and method for special-shaped inner cavity structures. The system includes a control cabinet, a low / high pressure jet generation assembly, an autonomous feeding assembly, a waste collection assembly, an industrial robot actuator, and a workbench main frame. The low / high pressure jet generation assembly includes a high pressure jet generation device, a low pressure jet generation device, a high / low pressure conversion switch, a low / high pressure water inlet pipe, and a water inlet. The high pressure jet generation device and the low pressure jet generation device are integrally arranged and switched by means of the high / low pressure conversion switch. The jet polishing system of the present invention can meet the micro abrasive water jet polishing of complex special-shaped inner cavity structures, and can select the optimal path spacing value according to the processing requirements to generate the optimal path. The industrial robot works according to the optimal path to ensure the polishing accuracy.

The invention provides coated glass and a preparation method thereof, laminated glass and a vehicle, the preparation method comprises the following steps: S1, providing a glass substrate which comprises a coating area and a film removing area connected with the coating area; s2, coating layers are formed on the surfaces of the coating area and the film removing area, and a to-be-treated part is obtained; and S3, removing the coating layer on the surface of the film removal area of the to-be-treated piece by adopting water jet to prepare the coated glass. According to the invention, an abrasive water jet method is adopted, so that not only can a coating layer on the surface of a film removal area be removed, but also the glass surface corresponding to the film removal area can be polished; therefore, the purpose of removing the film of the coated glass is achieved, and the problem of optical deformation in the film removing area of the coated glass and at the junction of the film removing area and the ink printing area is solved.

The invention discloses a high-pressure water jet drilling method and nozzle based on authigenic abrasives, and relates to the field of geological drilling equipment.The nozzle of a double-layer structure comprises a nozzle inner sleeve and a nozzle outer sleeve which are coaxially arranged together in a sleeved mode, at least one sand suction hole is formed in the side wall of the nozzle outer sleeve, and the front end of the nozzle inner sleeve is located in the nozzle outer sleeve; a confluence area is formed at the outlet of the nozzle jacket; the sand suction holes are communicated with the confluence area to generate a siphonic effect, external rock debris is sucked into the confluence area and mixed with a high-speed water column, and then the rock debris is accelerated to form high-speed abrasive water jet to impact the rock surface. Abrasive water jet is formed by self-generated rock debris of the drill bit, mechanical, hydraulic and abrasive triple rock breaking is achieved by combining rotation of the drill teeth, and the drilling speed and the rock breaking efficiency are greatly improved; the double-layer structure nozzle modular design is adopted, the structure is compact, assembling and maintaining are rapid and convenient, ground complex abrasive adding equipment is not needed, local materials are used, and zero-cost abrasive supply is achieved.

Head extension for surface treatment operations including housing with first operative end and second operative end, both ends being open. Head extension incorporates cam assembly and holder assembly within housing. Cam assembly comprises motor, shaft, and plurality of cams configured to facilitate linear reciprocating movement. Holder assembly includes plurality of support plates and support loops configured to hold hoses used in surface treatment operations. Hoses extend through housing and interact with cams to achieve linear reciprocating movement. Head extension is designed for mounting on portable lifting equipment, such as portable crane or aerial work platform, thus allowing human operator to perform surface treatments at elevated or hard-to-reach locations while remaining on ground. Head extension is adaptable for use with various types of surface treatment media, including abrasives, water jets, and chemical sprays, providing versatility and enhancing operational efficiency and safety.

The invention discloses a control method and device suitable for pre-mixed abrasive water jet rock breaking. The method comprises the steps that an assembling device adjusts the position of a nozzle; a control valve is controlled to be opened; the opening degree of the flow regulating valve is corrected for the first time according to the surface heat of the rock mass, and the opening degree of the flow regulating valve is corrected for the second time according to the crushing degree index of the rock mass; the comprehensive crushing index of the rock mass is calculated, and the water pressure of the water pump is corrected according to the comprehensive crushing index; the opening degree of the sand valve is corrected for the first time according to the abrasive jet flow concentration, and the opening degree of the sand valve is corrected for the second time according to the abrasive jet flow state; and controlling the on-off state of the control valve according to the rock mass temperature, and determining whether to re-execute the steps according to the change trend of the rock breaking rate. Thus, key parameters such as carbon dioxide flow, water jet pressure, abrasive supply and sequential circulation are subjected to dynamic closed-loop adjustment, different rock stratum conditions and working condition changes are self-adapted, and the optimal working state is always kept.

The invention belongs to the technical field of abrasive water jet cleaning, and particularly relates to a water-soluble abrasive water jet cleaning device and method.The water-soluble abrasive water jet cleaning device comprises an abrasive supply system, a high-pressure water supply system and an abrasive water jet generation system; the abrasive material supply system and the high-pressure water supply system are both communicated with the abrasive material water jet system and are mixed in the abrasive material water jet generating system to form a water-soluble abrasive material, and the water-soluble abrasive material is sprayed out through a conical convergent nozzle of the abrasive material water jet generating system; the abrasive water jet generating system comprises a mixing cavity, the mixing cavity comprises a mixing cavity shell located outside, a venturi tube-shaped sliding block sliding in the horizontal direction is arranged in the mixing cavity shell, a hollow cavity, namely a venturi tube throat part, is formed in the position of a center shaft of the sliding block, the sliding block is connected with the mixing cavity through a spring, a one-way valve is arranged in the sliding block, and the venturi tube throat part is connected with the venturi tube. The one-way valve is communicated with the abrasive inlet when the sliding block slides, one end of the mixing cavity is communicated with a high-pressure water supply system, and the other end of the mixing cavity is provided with a conical convergent nozzle; the method has the advantages of effectively saving abrasives, improving the utilization rate of the abrasives, avoiding the situation that solid waste abrasives generated after abrasive water jet cleaning are accumulated and difficult to recycle or treat, fully utilizing the characteristic that the solid waste abrasives are soluble in water, and solving the problems existing in an existing abrasive water jet cleaning technology.

The application discloses a kind of abrasive water jet rock breaking and resource recycling circulating equipment systems, the system includes: tunneling and material collecting module, transfer conveyor, vibrating screening module, stone conveyor, cyclone sorting module, abrasive water jet generator, sewage delivery tank and sewage sedimentation tank.Working, tunneling module breaks rock and collects material;Material is sent to vibrating screening module by transfer conveyor, and it is separated by screening to discharge large-diameter stone, and small-diameter material enters cyclone sorting module;Cyclone sorting module accurately separates abrasive that meets the requirements of particle size, and sends back to jet generator for recycling, and fine particles and sewage are discharged into delivery tank;Sewage is finally merged into sedimentation tank, and clear water is pumped into the system again, for jet generation and spray cleaning of screening machine, to form a closed cycle of "rock breaking-collecting-sorting-recovery-reuse".The application realizes efficient recovery and recycling of water and abrasive, significantly reduces operating cost, and ensures continuous and stable operation of the system through spray cleaning and other designs.

The invention relates to a small switch valve for an abrasive water jet device, and aims at solving the problems that an existing switch valve is large in size, low in control precision and insufficient in sealing performance. The valve comprises a valve body formed by butt joint of an upper valve body and a lower valve body, an air cylinder assembly, a symmetrical buckle structure and a sealing assembly. The air cylinder assembly drives a ball body at the tail end of a valve-air cylinder-air cylinder rod through high-pressure air to extrude a hose, and accurate on-off control over abrasive spraying is achieved. The buckle structure is composed of a buckle base, a buckle and a cover, and rapid disassembly, assembly and maintenance of the valve body are achieved. And the sealing assembly is made of a high-temperature-resistant elastic material and is provided with multiple layers of gaskets, so that the sealing performance and the wear resistance in a high-pressure environment are ensured. In addition, the fluid channel is connected through a 304 stainless steel sanitary high-pressure clamp, so that the reliability and the pressure resistance are improved. The device is compact in structure and small in size, can be flexibly integrated in small equipment, has the characteristics of fast response, high control precision and excellent sealing performance, and is suitable for efficient water flow control of an abrasive water jet device.

The utility model discloses a kind of abrasive water jet stream turning equipment, comprising: workbench, workpiece positioning mechanism, liquid storage recovery mechanism, three-axis motion mechanism, cutting mechanism, abrasive mixing mechanism, pressure pump and drive mechanism, the water outlet of liquid storage recovery mechanism is communicated with the water inlet of pressure pump by pipeline one, the water outlet of pressure pump is communicated with the inlet of mixing chamber on abrasive mixing mechanism by pipeline two, the middle part of workbench is equipped with the processing groove corresponding and communicating with liquid storage recovery mechanism. The utility model is used for storing liquid by liquid storage recovery mechanism, cutting fluid is recycled simultaneously by abrasive water jet stream cutting, can avoid resource waste;The utility model is combined with high pressure water jet stream and abrasive impact force, significantly improves cutting efficiency and material adaptability, avoids material thermal deformation, ensures workpiece surface finish.

The invention relates to the technical field of abrasive jet assisted rock breaking, in particular to a mining abrasive water jet assisted rock breaking operation robot. The robot integrates a crawler walking chassis, a front mixing horizontal double-abrasive-tank device, an auger sand conveying mechanism and a multi-degree-of-freedom cutting arm, a high-pressure hose and a rotary drill rod are communicated through a high-pressure rotary sealing connector, a segmented quick-change drill rod and a high-pressure switching valve are further designed, a full-electric component is a mining explosion-proof component, and the full-electric component is a high-pressure-resistant component. And a composite rock breaking rate and double-tank buffer coefficient calculation model is established. The maneuverability and adaptability of equipment under complex underground working conditions are effectively improved, closed continuous conveying of grinding materials is achieved, the composite rock breaking synergistic effect is exerted, the equipment stability and the operation intrinsic safety are enhanced, the underground long-time continuous accurate rock breaking requirement is met, and reliable equipment support is provided for mine roadway tunneling.