37 results about "Particle emission" patented technology

This technology provides a way to easily perform decorative coloring on a substrate. [Solution] The decorative film deposition apparatus comprises a chamber, a titanium particle emission unit including a titanium target disposed in the chamber and which imparts energy to the titanium target to release titanium particles, a gas supply unit connected to the chamber and which supplies a reactive gas, and a control unit which controls the gas supply unit. The gas supply unit has a carbon-containing gas supply unit which supplies a carbon-containing gas containing carbon atoms into the chamber, a nitrogen-containing gas supply unit which supplies a nitrogen-containing gas containing nitrogen atoms into the chamber, and a flow rate adjustment unit which can adjust the flow rate of the carbon-containing gas with respect to the flow rate of the nitrogen-containing gas, and the control unit adjusts the flow rate of the carbon-containing gas with respect to the flow rate adjustment unit to adjust the visible light reflectance of the film formed on the object to be deposited.

The invention discloses alkali furnace flue gas treatment equipment, and belongs to the technical field of flue gas treatment.The alkali furnace flue gas treatment equipment comprises a treatment mechanism used for cooling high-temperature flue gas, and a separation mechanism used for separating solid particles in the flue gas and a pressure relief mechanism used for relieving pressure when the equipment is blocked are arranged in the treatment mechanism; the separation mechanism is linked with a scraper through rotating outer blades and inner blades, particles in flue gas can be efficiently separated and collected into a particle box in a centralized mode, pollution caused by emission of the particles along with the flue gas is avoided, meanwhile, the cleanliness of subsequent flue gas treatment is improved, and the service life of the flue gas is prolonged. The outer blades and the inner blades are staggered, so that all particulate matters in the smoke dust can enter the particulate matter collecting cavity; the treatment mechanism provided by the invention adopts a water spraying mode driven by a lifting extrusion block, so that water is uniformly sprayed into high-temperature flue gas through a cooling spray pipe and is rapidly gasified to absorb heat, rapid and uniform cooling is realized, the problem of local overheating or insufficient cooling is avoided, and the energy utilization efficiency is improved.

The present invention relates to the technical field of particle beam distribution, and in particular to a particle beam distribution device for tumor treatment, comprising an equipment base, on which a particle emitter is mounted, a fixed base being fixedly connected to the bottom of the equipment base, a pushing mechanism being rotatably connected to the movable base, a protective cover being rotatably connected to the pushing mechanism, a rotating frame being rotatably connected to the protective cover, and an automatic maintenance mechanism being rotatably connected to the rotating frame. After the particle emitter is used, the protective cover can be arranged to cover the outside of an emission end of the particle emitter. At the same time, a support rod group and a pushing mechanism can realize automatic storage and cover of the protective cover to the outside of the emission end of the particle emitter, effectively preventing unintentional contact and avoiding safety hazards. The shielding helps prevent dust, moisture and other external contaminants from entering the equipment, thereby extending the service life. The automatic storage mechanism ensures that the protective cover does not affect the use of the particle emitter.

The invention discloses a method for preparing a battery negative electrode material from plasma modified fuel particle emissions and application, and belongs to the technical field of lithium ion battery negative electrode materials. The novel lithium battery negative electrode material is prepared by taking fuel oil combustion particle emissions as a precursor through low-temperature annealing and dielectric barrier discharge plasma nitrogen doping modification. The material is characterized in that a graphitized carbon structure is arranged inside particle emissions generated by fuel oil combustion, and lithium ions can be effectively embedded and removed. And the modified particle emissions as the negative electrode material of the lithium battery have relatively good rate capability. According to the invention, the particle emission pollutants generated by fuel oil combustion are converted into the negative electrode material of the lithium battery, the particle emission generated by fuel oil combustion is effectively utilized and converted, and meanwhile, a new thought and a new method are provided for finding a substitute of a graphite electrode of the lithium battery.

The present application relates to a mechanism and process method for reducing the particle emission of a belt pre-dryer, which comprises a flexible conveying assembly including a rotatingly arranged mesh belt and mesh holes penetrating through the mesh belt, and a layer of wet shavings to be dried is laid on the mesh belt; a flexible supporting assembly including a straightly arranged rigid guide rail, a rotatingly arranged flexible traction member, and a transversely connecting link arranged between the flexible traction members; the present application changes the fluctuating running state of the shavings layer into a steady parallel moving state, avoids the loose-dense-loose changes of the upper and lower layers of the shavings layer caused by the fluctuating running, reduces the phenomenon that the fine particles adsorbed and filtered by the upper layer of the shavings move and gather to the lower layer and the mesh belt caused by the fluctuating running, reduces the pressure difference between the upper and lower sides of the mesh belt caused by the gathering of the fine particles on the mesh belt, and improves the drying and filtering purification effect.

A friction material composition and related brake pads for vehicles, particularly electric vehicles, having improved friction stability, reduced creep groan noise tendency, and reduced particle emission, and being asbestos-free, wherein the composition comprises at least one filler, at least a fibrous material, at least one binder, at least one lubricant, at least one or more abrasives, and a first carbonaceous material having a particle size distribution such that it has a D greater than at least 10 μm 50 and a second carbonaceous material having a particle size distribution such that it has a D less than at least 10 μm 50 The asbestos-free friction material composition and related brake pads comprising the same.

The present invention discloses a fire smoke particle detection device and method based on scattering differential spectrum. The combination of an aerosol generator and an air pump can simulate a smoke environment and adjust the concentration of smoke particles in the environment to maintain the stability of the smoke environment. A xenon lamp is used as a light source to provide a wide-band spectral output. A reflective spectrometer detects the spectral characteristics of light, and a polarizer and a photoelastic modulator are used to convert the light into linearly polarized light, which is then irradiated on smoke particles to generate scattered light in different directions. The polarizer can receive scattered light in different directions through a rotating base and only allows light with a specific polarization angle to be transmitted to the detector, thereby simulating different smoke particle emission conditions and obtaining corresponding scattered photoelectric signals. Finally, a Labview program is used to deduce the matrix elements of the fire smoke particles, and then the type and particle size of the smoke particles are calculated, so that the present invention has good real-time performance and accuracy.

A diffuser device (1) for a device (3) for determining particle emissions from brakes is shown and described. The diffuser device (1) comprises a housing (5) extending along a flow direction (9), which defines an interior space (11) widening along the flow direction (9) and separates the interior space (11) from an environment (13) of the diffuser device (1) perpendicular to the flow direction (9). The housing also includes a subdivision unit (7) extending along the flow direction (9) that divides the interior space (11) into several sections perpendicular to the flow direction (9). A corresponding device (3) is also shown and described.

The utility model discloses a particle emitter with changeable width, which relates to the technical field of particle emitters, and comprises a shell cover, a motor arranged at the bottom of the shell cover, and an emitting rotating head connected with the output end of the motor and rotationally arranged in the shell cover, the emitting rotating head comprises a chuck, blades and a direction adjusting sleeve, dovetail grooves are formed in a chuck body of the chuck in the radial direction, dovetail clamping heads matched with the dovetail grooves in shape are arranged on the bottom edges of the blades, the blades are inserted into the dovetail grooves of the chuck through the dovetail clamping heads, positioning holes perpendicular to the dovetail grooves are formed in the positions, corresponding to the dovetail grooves, of the chuck body of the chuck, and positioning grooves are formed in the positions, corresponding to the positioning holes, of the dovetail clamping heads. And positioning pins are arranged in the positioning holes and penetrate through the positioning grooves to lock and fix the blades. The blades are detachably installed through the dovetail grooves and the positioning pins, the dovetail grooves are matched with the blades with different widths, and therefore the purpose of adjusting the width of the particle beam is achieved, the structure is simple, and replacement is convenient.

The utility model discloses a small-sized floating particle impact cabin, which relates to the technical field of workpiece burr processing equipment, and comprises a cabin body and a particle emitter, the emitting end of the particle emitter is communicated with the cabin body through an emitting window, vertical guide rails are fixed on side panels of the cabin body on two sides of the emitting window, and the vertical guide rails are connected with the emitting window. A sliding block is arranged on the guide rail in a sliding mode. A machine shell of the particle emitter is fixed to the sliding block. A connecting plate is further fixed to a machine shell of the particle emitter, the connecting plate is rotationally connected with one end of a connecting rod, the other end of the connecting rod is rotationally connected with a horizontal eccentric shaft of a rotating disc, and a horizontal center shaft of the rotating disc is installed at the top of the cabin body through a bearing seat, connected with the output end of a driving motor and driven by the driving motor to rotate. According to the utility model, the particle emitter can perform lifting motion for shot blasting in the process of emitting particles, so that the distribution area of shot blasting is enlarged, the efficiency is high, the shot blasting effect is stable, and the processing requirements of workpieces are met.

The present invention discloses a device for testing and researching the emission and effective monitoring of hail particles in wind and hail disasters. The device is mounted on a bracket via a steering device and specifically includes a hammer, a transmission mechanism, a locking mechanism, and a firing mechanism. The left end of the hammer is connected to the transmission mechanism, and the lower end of the hammer is provided with a locking mechanism for limiting the hammer's rightward movement. The right end of the hammer is connected to the firing mechanism, and a laser speed measuring device is provided at the end of the firing mechanism. The present invention has a simple and reliable structure, and its parts can be replaced at any time. The emission angle, emission speed, and particle size of hail particles can be flexibly adjusted to study the effects of the emission angle, speed, and particle size of hail particles on structures. Semi-automatic / automatic emission can also be achieved, significantly improving test efficiency. This device is innovative and provides a practical device for studying the effects of wind and hail on structures, which is urgently needed for studying the reduction and prevention of wind and hail disasters in greenhouses, buildings, wind turbines, and other large-scale projects.

The application discloses a kind of coupling centrifugal separation's airflow sound source smoke elimination device and method.First airflow sound source and second airflow sound source are installed on box, first airflow sound source and second airflow sound source are respectively used to inhale and discharge airflow, dust collection drawer is connected to the bottom end of box, for collecting separated solid particles, guide mechanism and inner cylinder are fixedly connected in the lower part of box, air inlet pressure regulating assembly is fixedly connected in the upper part of box, and air inlet pressure regulating assembly is fixedly connected between first airflow sound source, cyclone vane and cylinder diameter adjusting mechanism are installed on inlet orifice plate, support tile is movably installed on inlet orifice plate along the radial direction of inlet orifice plate, a straight plate is provided between every two adjacent support tiles, and sliding vane two ends are respectively connected with resonant cavity sleeve and support tile.The application fully utilizes the discharged airflow of airflow sound source to realize self-induction and self-discharge of flue gas, realizes efficient purification of smoke and control of particle emission, and improves visibility of fire scene when fire occurs.

According to the device for recovering the moisture in the desulfurized flue gas of the coal-fired power plant, the desulfurized flue gas 201 flows through the device 101 for recovering the moisture in the desulfurized flue gas of the power plant from bottom to top, and in the process, pollutants such as tiny liquid drops 202 and dust particles 203 in the flue gas 201 are captured by the device 101 for recovering the moisture in the desulfurized flue gas of the power plant and condensed and recovered. Compared with a tube bundle recoverer used by a desulfurization device of a coal-fired power plant at present, the distance from particles to the surface of a tube wall is shorter, the particles are captured by the tube wall more easily, resistance is small, emission is less, cleaning is easy, occupied space is small, cost is low, moisture in flue gas obtained after desulfurization of the power plant can be efficiently recovered, and meanwhile particle emission is greatly reduced.

Provided are a computer program, information processing method, learning model generation method, and information processing device that can be expected to assist countermeasures against particles produced inside a processing container of a substrate processing device.　A computer program according to an embodiment of the present invention causes a computer to execute processing for: acquiring particle data including position information of particles generated inside a processing container of a substrate processing device; inputting the acquired particle data to a learning model that has undergone machine learning in which the particle data is received as input and information concerning the emission sources of the particles is output; acquiring information concerning the particle emission sources output by the learning model; and outputting the acquired information concerning the particle emission sources.

The invention discloses a device for detecting the flight speed of a cold spraying single particle. The device comprises a vacuum cavity, a particle emission system and a signal detection system, the vacuum cavity comprises a top cover, a side wall and a bottom cover and is used for providing a vacuum environment for particle flight and electrode work; the particle emission system comprises an emitter, an emitter sealing ring and a base material; the signal detection system comprises an electrode, a bracket and an insulating pipeline and is used for detecting the flight speed of particles; the top cover and the bottom cover are made of toughened glass with high light transmittance so as to determine the focusing position of the pulse laser; the insulating pipeline support is provided with the magnet, and the vacuum environment is not damaged when the internal structure of the device is adjusted. The device has the advantages that low-cost speed measurement of particles can be achieved, the vacuum environment is more beneficial to particle flight and electrode work, and the position of an internal structure can be adjusted through external traction.

An asbestos free friction material composition and associated brake pad for vehicles, in particular for electric vehicles, having an improved friction stability, a reduced creep groan noise propensity and a lower particles emission, wherein the composition comprises at least one filler, at least a fibrous material, at least one binder, at least one lubricant, at least one or more abrasives, at least a first carbonaceous material having a particle size distribution such as to have a D50 higher than 10 μm and at least a second carbonaceous material having a particle size distribution such as to have a D50 less than 10 μm.

The invention relates to the technical field of particle beam distribution, in particular to a particle beam distribution device for tumor treatment, which comprises an equipment seat, a particle emission seat is mounted on the equipment seat, a fixed seat is fixedly connected to the bottom of the equipment seat, a pushing mechanism is rotatably connected to a moving seat, and a protective cover is rotatably connected to the pushing mechanism. The protective cover is rotatably connected with the rotating frame, the rotating frame is rotatably connected with the automatic maintenance mechanism, and after the particle launching seat is used, the protective cover can cover the outer side of the launching end of the particle launching seat; meanwhile, automatic storage of the protective cover can be achieved through the supporting rod set and the pushing mechanism, the protective cover covers the outer side of the emitting end of the particle emitting base, unintentional contact can be effectively prevented, potential safety hazards are avoided, dust, water and other external pollutants can be prevented from entering equipment through shielding, the service life is prolonged, and through the automatic storage mechanism, the service life is prolonged. And the use of the particle emission seat is not influenced by the protective cover.

The present invention discloses a method for measuring ( n , α ) reaction angle differential cross section method, belongs to the field of nuclear data measurement technology. The present invention uses a screen ionization chamber and a gas sample to measure the anode pulse rise time and anode amplitude, and obtains the projection length of the nuclear reaction event track parallel to the neutron incident direction through the anode pulse rise time. One projection length corresponds to two α The particle emission angle; the difference in anode amplitude can distinguish the same projection length but α The events with different particle emission angles are divided into different categories according to the two-dimensional spectrum of anode amplitude-anode pulse rise time through the V-shaped event area on it. α The number of events is obtained by measuring the particle emission angle, and the differential cross section of the reaction angle to be measured can be obtained by combining the number of reaction nuclei to be measured and the corresponding neutron flux. The present invention can be used to measure ( n , α ) reaction, which has the characteristics of a large number of sample nuclei to be tested, high detection efficiency, and is not restricted by the detector placement angle.

A method (100) for monitoring the particle emissivity of a brake unit installed in a vehicle, comprising:-measuring (101) the particle emissivity of the brake unit under one or more predetermined braking conditions on a brake dynamometer or drum test stand; establishing (102) a comparison table which contains the maximum particle emissivity of the braking unit for each predetermined braking condition; -measuring (103) the particle emissivity of the brake unit during the actual use of the vehicle; -verifying (104) whether the particle emissivity of the brake unit during the actual use of the vehicle is less than or equal to the maximum particle emissivity under the current braking conditions, or whether the particle emissivity of the brake unit during the actual use of the vehicle is greater than the maximum emissivity.

The invention discloses a gasoline engine particulate filter and a preparation method thereof.The preparation method comprises the steps that first inorganic powder material slurry and a first pore forming agent are mixed to form first mixed slurry, the first mixed slurry is applied to a particulate filter carrier, first roasting is conducted after drying, and a first coating is formed; mixing second inorganic powder material slurry with a second pore forming agent to form second mixed slurry, applying the second mixed slurry to the first coating, drying, and performing second roasting to form a second coating; third inorganic powder material slurry and a third pore forming agent are mixed to form third mixed slurry, the third mixed slurry is applied to the second coating, third roasting is carried out after drying, a third coating is formed, and the gasoline engine particle trap is obtained. The first pore-forming agent, the second pore-forming agent and the third pore-forming agent are all organic polymers with the decomposition temperature of 350-600 DEG C, and the average particle sizes of the first pore-forming agent, the second pore-forming agent and the third pore-forming agent are sequentially reduced. Therefore, the prepared gasoline engine particle trap is high in controllability of pore distribution, and low back pressure and ultralow particle emission can be realized.

The present invention provides a composite conductive particle launch device for micro-nano crushing of wood fibers, comprising an air supply system, an emission control device, a recovery control device, an emission valve and a recovery valve. The air supply system comprises an air storage device, a two-stage pressure reducing valve and a two-position five-way single-control solenoid valve. The pressure required for opening and closing the emission valve and the recovery valve is regulated and controlled by the two-stage pressure reducing valve to ensure that the pressure provided by the air storage device remains constant. At the same time, the valve port of the emission valve is in a coaxial position with the emission cavity during each emission, thereby ensuring the stability of each emission speed. The emission recovery control device is implemented by energy conversion, and the energy relationship in the emission recovery device is changed by different power-on states of the emission magnet, thereby launching the particles into the crushing cavity, or recovering the particles from the crushing cavity by the gravity generated by the emission magnet. The current is changed to adapt to the conditions of conductive particles of different particle sizes and emission cavities of different lengths.

This invention relates to an automatic protective device for tumor particle beam distribution equipment, comprising a working platform, an equipment base, a particle emission base, a protective cover, a guide bracket, a baffle plate, an air curtain structure, a micropore cleaning component, and an emergency triggering component. The protective cover is detachably connected to the equipment base via magnetic attraction. Connecting pipes on both sides of the cover cooperate with the spray nozzles to form an air curtain to block impurities. The baffle plate is constrained by a traction rope. When the equipment is misaligned, the traction rope breaks, and the baffle plate descends under gravity to block impurities. The tungsten sand fluid inside the rubber bladder is pressurized to achieve a seal. The emergency triggering component cooperates with a beam monitoring sensor to quickly cut off the connection in case of accidental emission. The baffle plate provides emergency blocking under the action of a compression spring. When the baffle plate descends, a scraper and a micropore cleaning component simultaneously clean the surface of the emission end and the precision micropores. This invention solves the problems of existing protective devices having a single beam blocking trigger, slow baffle plate response speed, and poor protective effect.

The utility model discloses an environmental protection type atomization equipment of glass incoming material sprays protective layer relates to atomization equipment technical field, and this environmental protection type atomization equipment of glass incoming material sprays protective layer includes the spraying box body, and the inboard of this spraying box body is installed respectively with the turnover fixed clamp and spraying device, and spraying device is located the upper end of fixed clamp, the utility model discloses, when exhausting, the exhaust fan collocates the waste gas treatment system of polyester fiberboard and activated carbon filter board, can effectively filter and purify the redundant paint mist produced in the spraying process, reduces the harmful gas and particle emission in paint mist, meets the environmental protection requirement, has protected the health of working environment and operator, has reduced the pollution to the atmosphere, when using, through the opening and closing of clamp no.

The invention relates to a method and device for detecting the carbon deposition amount of an EGR engine air inlet channel, and the method comprises the steps: carrying out the calibration of the particle emission in the rear exhaust of a turbine of a target engine under different working conditions, and forming an exhaust particle emission chart; according to the exhaust particulate matter emission chart, the accumulated emission amount of exhaust particulate matter behind an engine turbine is calculated; calibrating the exhaust gas recirculation rates of the target engine under different working conditions to form an exhaust gas recirculation rate chart; according to the exhaust gas recirculation rate chart, the total mass of particulate matter contained in exhaust gas reaching the gas inlet side in the exhaust gas recirculation system is calculated; and calculating the particulate matter adsorption coefficient and the particulate matter adsorption mass of the air inlet channel according to the total mass of the particulate matters contained in the waste gas on the air inlet side. The exhaust particulate matter emission data of the engine under different working conditions are actually collected through various sensors, the accumulation amount of particulate matters in exhaust can be accurately calculated, and the accuracy of a detection result is ensured.

The invention discloses a particle releasing and vibration applying device for partial discharge caused by metal particles, which comprises a motor and a connecting rod, and is characterized in that the output end of the motor is connected with a disc; one end of the connecting rod is eccentrically connected with the disc, and the other end of the connecting rod is connected with a vibration applying rod which is sleeved with a coil. The particle releasing and vibration applying device is simple in structure and easy to use, and particle releasing and vibration simulation can be conveniently achieved.

A method and device for identifying the signature characteristics of atmospheric particulate matter based on scanning electron microscopy technology is disclosed. The method uses a computer-controlled scanning electron microscope to analyze samples from a set pollution source, obtain images, composition data, and particle size parameters of the particulate matter in the pollution source samples, and construct a single-particle dataset for the pollution source samples. A single-particle emission source prediction model is constructed and trained based on a residual network model and an extreme gradient boosting model. The trained single-particle emission source prediction model is used to obtain the probability value that the target single particle belongs to the set pollution source. The single-particle emission source prediction model is interpreted using the SHAP strategy, and the key features of the single particle used by the single-particle emission source prediction model in decision-making are used as the signature features of the single particle emitted by the set pollution source. The present invention can fully mine the single-particle information emitted by different pollution sources and identify the signature features of particulate matter emitted by the pollution source.

To analyze the discharge occurring in space.SOLUTION: An analysis method includes repeatedly performing electrostatic field analysis processing to acquire an electric field intensity distribution in an analysis space, increase processing to increase negative electric charge particle density and positive electric charge particle density of cells that satisfy the condition that, in each cell of the analysis space, the electric field intensity exceeds a first electric field threshold and the positive electric charge particle density is a predetermined upper limit value or less, reduction processing to reduce the negative electric charge particle density and the positive electric charge particle density of each cell in the analysis space, negative electric charge particle discharge processing to increase the negative electric charge particle density of cells in the surroundings of the surface of the electrode with the lower set potential of the first electrode and the second electrode, and advection processing to update the negative electric charge particle density of each cell by moving the electrons of each cell in the analysis space on the basis of the electric field intensity distribution within the analysis space.SELECTED DRAWING: Figure 34

The brake pad comprises a plurality of storage holes formed in the brake pad, the storage holes are obliquely formed from the surface, close to a brake disc, of the brake pad to the interior of the brake pad, and the distribution density of the storage holes is gradually increased outwards from the rotation center of the brake disc in the radial direction of the brake pad. The storage holes are distributed in the circumferential direction of the brake pad at equal angles. Storage hole structures distributed at specific angles are formed in the surface of the brake pad, an efficient abrasion particle capturing and storing area is constructed, the capturing efficiency and the coagulation effect of tiny and multi-particle-size abrasion particles generated in the braking process are remarkably improved, and the source emission reduction capacity of non-waste-gas particles is improved; meanwhile, the gradient and staggered optimization design of multiple parameters such as the distribution density, the depth, the diameter and the inclination angle of the storage holes in the radial direction or the circumferential direction is adopted, and the space-time differential abrasion characteristic caused by linear speed difference and uneven stress distribution in the braking process is effectively adapted.

The invention discloses a brake pad capable of reducing emission of non-tail gas particles, the brake pad is sequentially provided with a first trapping area, a second trapping area and a third trapping area which are adjacently arranged from the working surface to the inside, and each area is internally provided with a plurality of hollow cavities which are uniformly distributed at intervals in the transverse direction and the longitudinal direction. A first trapping area, a second trapping area and a third trapping area which are provided with specific spherical cavity structures are arranged in a layered mode from an operation face to the inside, an efficient and lasting particle trapping and managing system is constructed, and the trapping and coagulation efficiency of frictional wear particles generated in the braking process is remarkably improved; the emission concentration of non-tail gas particulate matters is fundamentally reduced; the spherical contour design and the proper diameter of the spherical hollow cavity structure ensure efficient capture of particles, and the spherical hollow cavity structure and the layered layout effectively optimize the friction contact stress distribution in the brake pad.