37 results about "Debris particle" patented technology

The utility model discloses an air drilling rock debris sorting device which comprises a crusher used for crushing rock debris so as to reduce the particle size of the rock debris; a plurality of blanking positions are sequentially arranged on the blanking platform at intervals in the first direction; the magnetic suction roller is located above the blanking platform and can rotate in the circumferential direction and move in the first direction; the magnetic suction roller is provided with an initial position located under a discharge port of the crusher, and when the magnetic suction roller is located at the initial position, the magnetic suction roller can adsorb rock debris particles crushed and falling from the crusher to the outer wall of the magnetic suction roller; in the process that the magnetic attraction roller moves in the first direction from the initial position, the magnetic force of the magnetic attraction roller is in a decreasing trend, so that the rock debris particles adsorbed by the magnetic attraction roller fall down according to the magnetic force and are distributed to different blanking positions, the rock debris particles are sorted according to the magnetic intensity, operation is convenient, and the sorting efficiency of the magnetic rock debris is improved.

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a self-locking hydraulic oil cylinder. According to the technical scheme, the hydraulic cylinder comprises a hydraulic cylinder body and a piston rod arranged at one end of the hydraulic cylinder body, and a scraping ring is further arranged at one end of the hydraulic cylinder body. According to the self-locking hydraulic oil cylinder, the scraping ring, the sliding block, the cleaning wiping sleeve, the transmission mechanism and other structures are matched, when the self-locking hydraulic oil cylinder is used, the motor drives the gear to drive the gear sleeve and the cleaning wiping sleeve to rotate, and the scraping ring scrapes impurities on the surface when the piston rod reciprocates. The abutting block pushes the sliding block to be opened through the inclined abutting face, and the inclined scraping face of the abutting block scrapes away sundries and particles left on the scraping ring. Through combination of rotary cleaning and mechanical scraping, particles retained on the scraping ring are actively removed and are prevented from serving as grinding materials to abrade the piston rod, the problem that local abrasion of the piston rod of the oil cylinder is aggravated due to particle retention is solved, the cleaning effect of the oil cylinder is improved, and the service life of the oil cylinder is prolonged.

The invention belongs to the technical field of foundation pit engineering construction monitoring, and provides a model training method and a rock slag feature extraction method and device for solving the problems that rock slag feature extraction precision is low and rock slag color features are not considered. According to the method, based on a YOLO11n-seg improved model fusing MSFEM and a TripleGD-Neck mechanism, through multi-scale space-frequency feature joint enhancement and cross-layer information interaction, the segmentation precision of rock slag particles is improved, and automatic and high-precision analysis of particle size distribution is realized. According to the method, a rock slag area is extracted by using a mask obtained after segmentation of a YOLO11n-seg improved model, geometric particle size parameters of the rock slag are calculated, and color features of the rock slag are obtained, so that richer surrounding rock information is provided, and powerful data support can be provided for further geological analysis.

This invention relates to the field of rubber product processing equipment technology, and more specifically, to a rubber manufacturing cylindrical grinding machine that facilitates waste collection. The machine includes a main body with a protective cleaning structure and a dust removal structure. The protective cleaning structure includes a protective cover and a clamping structure. A mounting plate is provided on the main body, and the protective cover is installed on one side of the mounting plate via bolts. The protective cover has a wall cleaning structure, and the main body has a collection box that slides within the machine via the clamping structure. This invention physically surrounds the grinding area with a detachable protective cover, effectively preventing disorderly debris splashing, protecting the health of operators, and preventing debris from intruding into the precision parts of the machine tool. Its inner wall cleaning structure facilitates maintenance and ensures long-term effective protection. Simultaneously, large debris particles are guided to the sliding collection box below, achieving primary sorting and convenient cleaning of waste.

The invention discloses a road material evaluation system and evaluation method, and relates to the field of road construction, the road material evaluation system comprises a test board, one side of the test board is provided with an anti-fracture table, one side, away from the anti-fracture table, of the test board is provided with an anti-compression table, and the test board is fixedly provided with two symmetrical collection covers; the two collecting covers correspond to the compression-resistant table and the fracture-resistant table, collecting and conveying mechanisms are arranged at the bottoms of the collecting covers, and auxiliary vibration mechanisms are arranged at the bottoms of the collecting covers. The test bench is integrated with an independent fracture-resistant and compression-resistant station with a closed collecting cover, chippings and dust can be completely restrained in the cover during testing, and after testing is finished, a collecting and conveying mechanism at the bottom of the cover and an auxiliary vibration mechanism automatically work cooperatively, so that guiding and collecting of fine materials and ash removing and shaking off of large materials are achieved respectively; therefore, chipping particles can be efficiently collected while the chipping particles generated in the testing process are isolated, and the trouble of subsequent cleaning is reduced.

The invention discloses an underground rotary jet cutting tool and an assembling method and a working method thereof, the tool is composed of an impeller assembly, a transmission device, a jet device and the like, the impeller assembly is composed of a fixed impeller and a movable impeller, and the transmission device is composed of a transmission sleeve, a transmission rod, a speed reducer and the like. According to the downhole rotary jet cutting tool, a large shaft hole tolerance gap is adopted, the sealing friction resistance in the high-frequency relative movement process of the impeller, the transmission shaft and the outer cylinder is better reduced, the jamming situation caused by the fact that tiny rock debris particles enter the shaft hole tolerance gap is greatly reduced, meanwhile, abrasion of a sealing piece is reduced, and the service life is remarkably prolonged; and a speed reducer structure is used for balancing the impeller rotating speed and the rotating nozzle output rotating speed.

The invention relates to the technical field of drill boom control, and provides a coal mine drill boom angle adjusting method and system based on distributed control. The method comprises the following steps: arranging a particle detection device, and obtaining particle detection parameters; acquiring a joint node, and identifying a particle attitude interference interval of the joint node based on the particle detection parameter; constructing a corresponding reverse attitude adjustment interval; and a drilling task path is determined, a reverse attitude adjustment interval is taken as a constraint, distributed cooperative control optimization is carried out on joint nodes according to the task path, angle adjustment parameters are obtained and used for angle adjustment, and therefore the problems that when an existing coal mine drill arm works, coal dust and rock debris particles intrude into the joint parts, rotation retardation is caused, abrasion is aggravated and even jamming is caused, and the working efficiency is poor are solved. The technical problems of influence on drilling efficiency and equipment service life due to particle detection and distributed cooperative control in the prior art are solved, and the technical effects of preventing particles from invading joints, reducing joint abrasion and jamming risks and improving drilling efficiency and equipment operation reliability are achieved through particle detection and distributed cooperative control, construction of reverse attitude adjustment constraints, prevention of particles from invading the joints, reduction of joint abrasion and jamming risks and improvement of drilling efficiency and equipment operation reliability.

The invention belongs to the technical field of oil exploration logging, and discloses a drilling rock debris porosity measurement method, which comprises the following steps: selecting drilling rock debris particles with different particle sizes at a target layer as measurement samples; cleaning the measurement sample; removing water on the surface of the cleaned measurement sample; determining the appearance volume of the measurement sample after the surface water is removed; performing a nuclear magnetic resonance experiment on the measurement sample to obtain a transverse relaxation time T2 spectrum of the measurement sample; and obtaining the porosity of the measurement sample based on the transverse relaxation time T2 spectrums of the standard sample and the measurement sample. According to the method, the representative sample is selected, and the processes of cleaning, drying and appearance volume measurement of the detected sample are optimally designed, so that the technical problems that rock debris particles are fine, surface water is difficult to wipe away, and the appearance volume of the rock debris is difficult to accurately determine after drilling by the PDC drill bit are solved; a new thought is provided for measuring the porosity of the fine drilling cuttings, and technical support is provided for oil exploration logging.

The invention relates to a method for improving quartz glass sheet monitoring particles in a photomask dry etching process. Comprising the following steps: carrying out first particulate matter inspection on a quartz glass sheet, carrying out oxidation coating in a vacuum chamber, carrying out second particulate matter inspection, and comparing the first particulate matter inspection result with the second particulate matter inspection result to complete the treatment of the quartz glass sheet. By utilizing the method for improving the monitoring particles of the quartz glass sheet in the photomask dry etching process, the problems that when the quartz glass substrate is exposed to plasma in dry etching process equipment, the surface of the quartz glass substrate is easily damaged by physical bombardment of the plasma, and after the quartz surface is broken down or pits are generated, the surface of the quartz glass substrate is damaged can be solved. The problems that in the prior art, when a quartz substrate is monitored, new chipping particles are generated, the monitoring accuracy of falling particles of equipment is affected, quartz chippings may pollute an etching cavity, data obtained by monitoring the quartz substrate is distorted, the particle state in the equipment cannot be truly reflected, and troubles are brought to process control of a factory are solved.

The present application relates to the technical field of remote monitoring, in particular to a kind of high-cold area mud logging stratum analysis data remote monitoring system, system includes stratum mutation monitoring module, data paragraph integrity identification module, monitoring priority order construction module, environmental mutation excitation monitoring module and channel path dynamic scheduling module.The present application, by double judgment to the variation value of methane concentration and the range of rock debris particle size, can accurately identify the depth paragraph of stratum mutation, and by comparing the integrity of mud logging channel data, according to the mutation degree and the structure integrity degree, when sudden disturbance occurs outside the mud logging environment, dynamically evaluate the stability of communication channel and switch path, improve the reliability and response efficiency of data link under extreme climate conditions, under the condition of remote unmanned garrison, consider mutation identification, data integrity protection and link stable transmission, realize accurate monitoring and remote operation and maintenance support for high-cold area mud logging data.

The invention discloses a point cloud and image registration method based on improved RIFT. Firstly, a point cloud is converted into a depth image, and background removal is carried out on the depth image and a rock debris image; and then, calculating the phase consistency of the RGB image and the depth image by using a phase consistency model, and carrying out feature point detection according to a calculation result. Thirdly, evaluating the preliminary registration feature points through the ratio of nearest neighbor to secondary neighbor and regional consistency; and finally, optimizing feature point matching by using an improved RANSAC (Random Sample Consensus) algorithm, and calculating a homography matrix to determine a mapping relation between the RGB image and the depth image, so as to realize registration of different-source data. Compared with the original RIFT registration, the improved method has the advantages that the residual error of the projection point and the reference point after matching is better, and the registration result is more accurate. The method can be used for rock debris particle analysis and identification.

This utility model relates to a dust collector for laser cutting, including a dust collector housing. An air inlet is located on the side of the housing, consisting of an air inlet box and an air inlet. The air inlet box is connected to the side of the housing, and the air inlet is connected to the bottom of the air inlet box. Above the air inlet, the air inlet box has a ramp sloping towards one side of the housing. An impact-breaking mechanism is installed inside the air inlet box. When molten, sparking debris from cutting metal is drawn into the air inlet box, the high-speed airflow causes it to impact the ramp inside the box, breaking larger debris particles. Smaller particles are then further broken down by the impact-breaking mechanism. Combined with the airflow generated during the intake, the smaller debris particles cool and extinguish, preventing them from igniting flammable materials and ensuring high safety.

The utility model provides a kind of efficient drilling rock debris drying and recycling device, including support frame, further include: box, fixed in the inside of support frame, the bottom end of box inside is rotatably connected with spin-drying cone, the outside of spin-drying cone is equipped with the first screen mesh being connected with box, the top of box is fixed with feed hopper, the crushing structure for carrying out crushing to bulky rock debris, is set at the bottom end inside feed hopper, variable diameter structure, is set at the outside of first screen mesh.The utility model, by rotating handle drives screw rotation, make screw through push arm push second screen mesh rotation, so that the screen gap of second screen mesh and first screen mesh forms dislocation adjustment, whereby the aperture adjustment function of this device is realized, can be flexibly adjusted screen mesh aperture according to the actual change of drilling rock debris particle size, without stopping machine dismounting equipment can quickly adapt different working condition requirement, avoid screen mesh blockage or not completely separated problem.

The invention discloses a PDC drill bit shaft bottom in-situ rock breaking debris particle size measurement method and system, and relates to the technical field of shaft bottom in-situ rock breaking debris particle size measurement, and the method comprises the steps: constructing a shaft bottom in-situ finite-discrete-infinite element rock model; the in-situ stratum rock at the well bottom is regarded as an infinite boundary, and PDC tooth cutting rock breaking parameter calibration and PDC tooth rock breaking model modeling are carried out; and under the non-bilinear damage criterion, through the interaction of the in-situ finite-discrete-infinite element rock model and the PDC tooth crushing rock model, the in-situ initial rock debris particle size of the well bottom is measured, and the performance of the drilling fluid is adjusted. According to the method, the well bottom in-situ rock debris particle size is measured based on the non-bilinear damage criterion of the typical rock stress-strain curve and the well bottom in-situ finite-discrete-infinite element rock model in a coupling mode, and the reliability and accuracy of well bottom in-situ rock breaking rock debris particle size measurement are improved; and the problem of high calculation cost or sound wave effect of a finite-discrete element model is avoided.

The invention relates to the technical field of rock debris monitoring, in particular to a rock debris state online monitoring device based on multi-mode sensing and an inversion method.The device comprises a bin body, a slurry inlet and a slurry outlet are formed in the bin body, a multi-stage filter plate is obliquely arranged between the slurry inlet and the slurry outlet, and the multi-stage filter plate is arranged in the flowing direction of slurry. The filtering precision of each stage of filtering plate is sequentially increased, a layering plate for storing rock debris is arranged on the low-position side of each stage of filtering plate, and a cleaning device, an ultrasonic sensor and a camera are arranged above each layering plate at intervals. According to the invention, automatic separation, capture, cleaning and high-definition imaging analysis of rock debris particles in slurry are realized, real-time, in-situ and automatic monitoring of key rock debris particles is realized, and hysteresis and uncertainty of a traditional method are thoroughly overcome; a breakthrough solution is provided for intelligent early warning of the state of the drilling tool and accurate judgment of geological lithology.

The utility model relates to the technical field of laser cutting, in particular to a laser head cutting splash protection device which comprises lifting air cylinders installed on the left side and the right side of a laser cutting machine body, a protection metal plate shell located on the outer side of a laser cutting head is installed at the bottoms of the lifting air cylinders, and a plurality of fireproof cloth curtains are installed at the bottom of the protection metal plate shell. And an annular baffle for scraping condensed debris particles is mounted at the bottom of the protective metal plate shell through a connecting rod. The lifting air cylinder pushes the protective metal plate shell to move downwards, so that the fireproof cloth curtain at the bottom of the protective metal plate shell is driven to move downwards to shield high-temperature slag and splash generated in the cutting process, and the splashing is prevented from bursting out, causing equipment damage and threatening the safety of operators; chippings bursting at the cutting position and metal particles cooled after high-temperature melting are scraped, and therefore the situation that the metal particles are completely condensed, consequently, the cutting face is rough, subsequent additional grinding is needed, and the production efficiency is reduced is avoided.

A detection system for detecting debris in a fluid may include one or more of an inductive sensor, a Hall sensor, a capacitive sensor, and a sensor processing system. The sensor processing, using the signals supplied from the one or more sensors, may do one or more of estimate a size of each debris that has interacted with the magnet field, determine a total number of debris particles that have interacted with the magnet field, determine a cumulative quantity of the debris particles attracted by and contacting the magnet, and determine the viscosity of the fluid.

This utility model belongs to the field of expansion joint construction technology and discloses a road expansion joint construction device, including a vehicle body. A fixed frame and a dust collection box are fixedly connected to the vehicle body. The side of the dust collection box is connected to a dust extraction pipe through a vacuum cleaner, and the bottom end of the dust extraction pipe is connected to a chip collection mechanism. When the cutting component of this utility model is cutting the expansion joint of the road surface, the debris generated during the cutting process is extracted into the chip collection mechanism by the vacuum cleaner. Larger debris particles are retained in the chip collection mechanism for subsequent unified processing, while dust is extracted into the dust collection box through the dust extraction pipe, thus more comprehensively cleaning the debris generated during cutting. After the cutting component completes the cutting of the expansion joint on the ground, the cylinder can drive the mounting frame to move downwards, and the motor can be started to drive the sweeping brush to rotate counterclockwise, which can sweep the debris accumulated on the left side of the vacuum frame into the chip collection hopper, eliminating the need for manual cleaning of the debris on the left side of the vacuum frame.

A method for determining a filter load value of a filter of an air moving device is described, the method being based on an operating parameter value of the device and a predetermined relationship between the operating parameter value of the device and the filter load value when operating under a given inlet limiting condition. The method includes determining a change in a value of an operating parameter over a first operating period of the device; and determining a particle count value indicative of the number of debris particles detected in the airflow through the device during the second operating period of time of the device. The method includes determining an operating characteristic of the device during the first time period based on the change in the value of the operating parameter and the particle count value.

The invention relates to plasma source comprising a target material to produce the plasma emitting EUV radiation. The target material comprises a Li-based alloy with at least one further element selected from the group consisting of Ag, Au, Bi, Ba, Sr. The alloy is configured to increase the density of the target material by more than three times compared to the density of Li. As a result, compared with the Li target, the velocity of the droplet fraction of debris particles may be sharply reduced, which makes it possible to control the direction of its exit from the plasma due to the high velocity of the target. The plasma source is preferably a laser-produced plasma light source with a fast rotating target (at least 100 m / s). The target material may allow the creation of compact low-debris EUV light sources with high spectral brightness designed for a wide range of applications.

The application discloses a liquid cooling product micro-channel debris residue detection tool and relates to the technical field of liquid cooling heat dissipation product manufacturing. The tool comprises a base, a positioning seat, a clamping block, an air cylinder, an inlet and outlet water pipeline system and a granularity detection device. The positioning seat is arranged on the base and used for product positioning. The clamping block is driven by the air cylinder to realize automatic docking with a product interface. The inlet and outlet water pipeline system realizes forward and reverse alternating flushing through a reversing valve control. The granularity detection device is used for detecting the concentration of debris particles in the water pipeline, and whether there is debris residue in the product is determined. The application can realize accurate detection of debris residue in complex micro-channels in the liquid cooling product, and the detection efficiency is high.

The application provides a dust removal type wafer transfer manipulator and a robot thereof, wherein the manipulator comprises a finger base, an extender, a push rod and a dust removal assembly; the finger base is provided with an equipment cavity; one side of the equipment cavity is provided with a shaft hole; the dust removal assembly comprises a dust suction member and an air pipe; the dust suction member is provided with a dust suction cavity; the dust suction member is respectively provided with a purification hole penetrating through the dust suction cavity and a dust suction port communicating with the dust suction cavity; the dust suction member is arranged at the shaft hole; the purification hole communicates with the shaft hole; the extender is arranged in the equipment cavity; the push rod is connected with a driving end of the extender through the shaft hole and the purification hole; the air pipe communicates with the dust suction port and is connected with a negative pressure source; a negative pressure barrier is formed around the push rod through the purification hole to close the shaft hole. In this way, the leakage of the debris particle pollutants from the inner cavity of the manipulator is prevented.

The invention provides a rock debris rapid grinding method based on a piece turning method, which comprises the following steps: step 1) screening rock debris particles, removing impurities, cleaning and drying for later use; 2) taking two glass slides S1 and S2, and consolidating the rock debris particles on the S1 glass slide to obtain a crude sample; (3) the rough surface of the rough sample is ground flat, and rock debris particles are ground to enable one surface to be smooth; 4) removing the ground rock debris particles from the S1 glass slide, and then solidifying the rock debris sample on the S2 glass slide in a smooth surface manner; 5) grinding the rock debris on the glass slide S2, and stopping grinding until the quartz interference color of the rock debris sample is from first-grade grey white to first-grade light yellow, so as to obtain a rock debris slice sample; 6, the obtained rock debris slice sample is sealed with glue and naturally aired, and then the rock debris slice sample is obtained.According to the method, the problem that fine rock debris is difficult to polish and unload in traditional rock debris slice preparation is solved, and 30-50 rock debris particle slice preparation work is efficiently completed at a time through simple equipment based on the slice turning method.

The utility model discloses a polishing device for electric power iron accessories, which comprises a main body unit and a clamping mechanism, the main body unit comprises a processing seat stand and a polishing assembly, the upper end of the processing seat stand is fixedly provided with two striker plates and two fixing plates, the lower end of the processing seat stand is fixedly connected with a collecting box, and the clamping mechanism is fixedly connected with the clamping mechanism. The dust collection device has the beneficial effects that splashing chippings are blocked through the arrangement of the material blocking plate and the straight barrel, then the chippings fall into the collection box through the discharging opening, meanwhile, negative pressure is generated in the collection box through the arrangement of the multiple exhaust fans, generated dust and chipping particles are sucked into the collection box through the discharging opening, and the dust and chipping particles are collected through the discharging opening. Dust and chipping particles are filtered through the filter screen frame, so that workers can conveniently clean chippings, the labor intensity of the workers is reduced, the situation that a working area is polluted due to stacking of the chippings is avoided, and potential adverse effects on follow-up polishing machining of the electric iron accessories are prevented.

The utility model belongs to the field of sample polishing devices, and discloses a detection test block end face polishing device which comprises a mounting frame, and a polishing assembly is mounted at the top of the mounting frame. The placing plate is mounted in the mounting frame, a movable groove is formed in the side wall of the placing plate, and a movable plate is arranged in the movable groove in a sliding fit mode; the clamping mechanism comprises a driving unit and a clamping unit, the clamping unit comprises stand columns and a clamping plate, the stand columns are fixed to the two ends of the movable plate respectively, the clamping plate is detachably installed between the two stand columns, and the projection of the clamping plate is located in the containing plate; and the enclosing plate is mounted on the top surface of the placing plate. The movable groove is formed in the side wall of the placement plate, so that chippings and particles generated by concrete test block grinding stones cannot directly enter the movable groove, interference of the chippings and particles on movement of the movable plate and the like is avoided, chippings and particles can be prevented from entering the movable groove from the edge through the arrangement of the enclosure plate, and the practicability is high. The service life of the device in use is prolonged, and the reliability of mechanism adjustment is guaranteed.

The invention provides a method, system and device for determining the deposition and carrying distance of salinized lake basin fine debris particles and a storage medium, and the method comprises the steps: setting assumed conditions, carrying out the stress analysis of the fine debris particles, and determining the stress characteristics of the fine debris particles; a calculation formula of the final speed of fine fragment particle sedimentation is obtained through analysis and derivation on the basis of stress characteristic analysis; deriving a calculation formula of the actual horizontal carrying distance of the fine debris particles in the water body space; establishing a relation chart of the water body mineralization degree, the water body density and the water body viscosity, performing quadratic polynomial fitting, and determining the water body density and viscosity values of the salinized lake; collecting granularity analysis experimental data of the to-be-tested research area, and determining the diameter of fine debris particles; and substituting the obtained actual value into a horizontal carrying actual distance calculation formula to obtain a carrying distance under the conditions of the same depth and different salinity so as to guide sedimentary facies map compilation. Compared with the same water tank deposition simulation experiment, the method provided by the invention has higher accuracy in the aspect of sediment carrying distance measurement.

The utility model relates to a wastewater recovery system, it includes the sedimentation tank with liquid inlet and liquid outlet, with the liquid discharge pipeline intercommunication of liquid outlet, wherein the multistage sub tank of front and rear parallel distribution is formed in the sedimentation tank, and the overflow gap is formed between every two adjacent sub tank, the height of multiple overflow gap is gradually reduced along with the front and rear direction setting, and the liquid level height formed in multistage sub tank gradually reduces along with it. The utility model one aspect is based on multistage overflow and the overflow height gradually reduces, to realize wastewater rapid overflow under the liquid level height difference formed in each stage sub tank, ensure the flowability of wastewater between each stage sub tank, and the debris particle of different volume is gradually precipitated, effectively improve the debris even precipitation, on the other hand effectively promote the probability of even change of the sedimentation amount of multistage sub tank, reduce the cleaning frequency, be favorable to reduce the labor intensity and improve the recovery efficiency.

The invention discloses a cyclone separation unit, which is used for deoiling treatment of rock debris particles with the particle size of less than 100 [mu] m in oil-based mud, and at least comprises: a barrel body, the top of which is provided with an oil-based mud material inlet and a gas inlet, and which is used for receiving rock debris particles with the particle size of less than 100 [mu] m and cyclone driving gas which are subjected to vibratory screening and heating viscosity reduction treatment; the multiple cyclones are arranged in one-stage parallel connection, and the multiple cyclones connected in parallel are arranged in the circumferential direction of the barrel body and located outside the barrel body; a multi-stage cyclone bin and a double-ring channel are arranged in each cyclone, and airflow carrying rock debris particles sequentially flows downwards in an outer ring of the double-ring channel, flows upwards in an inner ring of the double-ring channel and enters the multi-stage cyclone bin from top to bottom; in the cyclone bin, under the action of cyclone, airflow carries an oil phase removed from the rock debris particles to move upwards and flow out from an overflow port, and the rock debris particles move downwards under the action of gravity and are discharged from an underflow port. The invention further discloses an oil-based mud treatment device and method applying the cyclone separation unit.

The application discloses a kind of complex stratum dual-mode shield construction rock debris particle size distribution evaluation method and system, comprising: obtaining rock debris image and pretreatment denoising, obtain the first image;Utilize deep learning algorithm to identify rock debris edge, separate overlapping rock debris, obtain the second image;Through morphological parameter analysis rock debris shape, carry out three-dimensional reconstruction correction to non-spherical particle, obtain the third image;In combination with laser particle size analysis data, data fusion is carried out to the third image, and preliminary particle size distribution is obtained;For fine particle adhesion phenomenon, adopt detection algorithm to correct particle size distribution;According to the change of crushing mechanism when shield mode switches, dynamically update particle size distribution;Through mutation detection algorithm analysis non-linear mutation in complex stratum, carry out data smoothing processing;Finally, error accumulation model is used to analyze error, if exceed threshold value, then reprocess, until error meets requirements.The application significantly improves the accuracy and reliability of rock debris particle size distribution evaluation.

The application relates to the technical field of friction plate production detection, and discloses a size detection device for high-heat-resistance wet friction plates after production, which comprises a conveying belt one, the outer surface of the conveying belt one is fixedly connected with equidistantly arranged isolation strips, the positions between adjacent two isolation strips are used for placing friction plates to be detected, one side of the conveying belt one is sequentially provided with a diameter detection mechanism, a pushing mechanism one, a pushing mechanism two, a screening mechanism one, a pushing mechanism three and a screening mechanism two, through the diameter detection mechanism, the interval value of the detection plate is recorded by using a laser transmitter and a receiver installed on the detection plate, the interval value of the detection plate is the largest when the detection plate is clamped at the two ends of the diameter of the friction plate, the value is the outer ring diameter of the friction plate, and the cleaning assembly arranged between the detection plates plays a stabilizing role and cleans the friction plate, so that the influence of the adhered debris particles on the surface of the friction plate on the thickness detection of the subsequent friction plate is reduced.