63 results about "Particle trapping" patented technology

The invention discloses a method for generating a staggered superposition double-layer Airy light beam array capable of realizing double focusing, and belongs to the technical field of structured light regulation and control and special light beam generation. Aiming at the problems that the focusing characteristics of light beam arrays in transmission in different superposition modes are difficult to fully reveal in the prior art and the generation of an optical bottle depends on complex phase modulation or multiple optical elements, the method comprises the following steps: constructing a first layer of Airy light beam array and setting regulation and control parameters, constructing a second layer of Airy light beam array with staggered azimuth angles and setting regulation and control parameters, and constructing a second layer of Airy light beam array with staggered azimuth angles; a longitudinal double-focusing structure is realized through staggered superposition of double-layer Airy light beam arrays, and a vortex phase is introduced into double-focusing array light beams to form an optical bottle structure. According to the invention, the structure is simple, the longitudinal double-focusing and optical bottle structure can be realized only through the initial light field structure design, the focusing intensity and the regulation freedom degree are high, and the application of the light beam in the related fields of microscopic imaging, particle capture and the like is expanded.

The invention relates to the field of nano science and nano technology, in particular to a low-power particle capture and local thermal detection method and device based on tip-enhanced Raman optical tweezers, under laser irradiation, directional optical force is generated through an enhanced electric field between a nano tip and metal particles, and capture of the metal particles is achieved; raman scattering on the surface of the needle tip can be excited through focused laser, and the local temperature of the needle tip can be obtained by analyzing the change of a Raman characteristic peak. According to the method, directional optical force is generated through an enhanced electric field between the needle tip and the metal particles to capture the metal particles, the problem that the metal particles cannot be captured by single-beam 532 nm laser is solved, the power density of captured particles is reduced, and the adverse effect of the heat effect on capture is reduced. The method also can amplify the Raman signal of the needle tip to realize Raman detection of a local position, realizes temperature monitoring at the capture position, and lays a foundation for exploring the influence of the thermal effect on the capture process.

The application discloses a kind of particle traps for MOCVD equipment, comprising: gas inlet flange, shell, mounting base, filter core assembly and gas outlet flange;Two ends of shell are connected gas inlet flange and gas outlet flange respectively, gas inlet flange is used to connect MOCVD equipment, and gas outlet flange is used to connect exhaust gas processor;Shell inside is equipped with mounting base, and mounting base divides into filter chamber and mixing chamber inside shell;Multiple filter core assemblies are installed side by side on mounting base, and filter core assembly is located in filter chamber, and the top of filter core assembly is sealed;The exhaust gas discharged by MOCVD equipment enters filter chamber inside by gas inlet flange, and enters filter core assembly inside by filter core assembly side portion after filtering, and then is discharged into mixing chamber by filter core assembly bottom portion, and finally filtered exhaust gas is discharged by gas outlet flange.The application has the advantages of compact structure, easy maintenance and uniform capture of small particles in process gas, solves the problem of too much sediment in pipeline caused by harsh environment of MOCVD equipment vacuum system due to particles, difficult to extract high vacuum, short maintenance cycle of butterfly valve sealing ring, short service life of dry pump and other problems.

The present application relates to a kind of vehicle body paint exhaust treatment tower spray circulating water tank, belong to industrial waste gas treatment equipment technical field.The device includes tower body, spray core shaft, drive ring seat, first suspension ring and second suspension ring, and the inside of tower body is equipped with processing cavity, and its upper and lower ends are equipped with shaft support, bottom is equipped with liquid collecting tank, and side wall is equipped with air inlet;Spray core shaft includes guide cone, guide cap, sub-guide ball and main shaft core, and circulating pump is arranged in main shaft core, and spray core shaft surface is provided with spray hole;Multiple drive ring seats are respectively corresponding to control multiple suspension rings, and its surface is equipped with magnetic yoke coil and exciter, and the permanent magnet block of drive suspension ring outer periphery realizes magnetic suspension rotation.The present application is by spray-magnetic suspension disturbance-flow channel trapping coupling mechanism, so that water and waste gas are fully contacted, agitated and dispersed in processing cavity, while extending waste gas residence time, improve particle capture efficiency and purification capacity, applicable to high concentration workshop waste gas treatment scene.

The invention discloses an efficient light-driven particle capture actuator based on a GO / PDMS-AuNBPs composite film, and belongs to the technical field of micro-nano control and biomedical engineering. The actuator aims at solving the problems that an existing light-driven particle capturing technology is low in photothermal conversion efficiency, depends on high-power laser, and is poor in thermal field stability and single in function. The core structure comprises a photo-thermal composite film and an optical fiber F-P sensing structure. The photo-thermal composite film is composed of a graphene oxide (GO) film and a polydimethylsiloxane (PDMS) film doped with gold nano bipyramid (AuNBPs). The optical fiber interference structure is formed by welding a single mode fiber (SMF) and a hollow fiber (HCF), and the end face of the HCF is coated with a photo-thermal composite film to construct a Fabry-Perot interference (FPI) microcavity; and the sensing unit realizes real-time monitoring of the capture state by monitoring the change of the reflection spectrum of the FPI microcavity. During working, the FPI microcavity plays a role in expanding a beam of a light field so as to improve the light field utilization rate of the GO film. PDMS regulation and control form an axisymmetric temperature potential well, and Marangoni force caused by temperature gradient drives particle capture. The lowest excitation power of the actuator is 11.9 mW, particles of 5-400 microns can be captured, and the actuator has low power consumption, high stability and biological compatibility and is suitable for living cell control, micro-reactor construction and micro-fluidic chip integration.

An embodiment of the present application provides a method and related device for controlling particles in vehicle exhaust. The method includes: obtaining current operating condition data of a target vehicle; determining a corresponding particle control strategy according to the current operating condition data; controlling the opening and closing degrees of a first control valve and a second control valve according to the particle control strategy. The first control valve is used to control the opening and closing of a first exhaust pipe after the TWC of the target vehicle, and the second control valve is used to control the opening and closing of a second exhaust pipe after the TWC. A GPF is installed in the second exhaust pipe, and the GPF is used for particle trapping. Through the above solution, it is possible to effectively control the particle number of vehicle exhaust under various operating conditions.

The present application belongs to the technical field of vehicle engineering, and particularly relates to a particle trap regeneration method, device, storage medium and controller; through reversing the installation of the particle trap and interfacing the rotating purging component, the regeneration of the trap is realized on the engine tail gas pipeline; wherein, in order to improve the regeneration effect, a cyclic or intermittent variable working condition control process can be introduced; through setting the first type of working condition and / or the second type of working condition and switching, the pulsating tail gas output is introduced; in the process, high load and high speed and low load and low speed working conditions can be respectively used to realize different excitation states of the tail gas; in addition, the preset lean burn working condition and high temperature tail gas configuration can be combined to further improve the regeneration effect; at the same time, the differential pressure detection closed loop of the two ends of the trap can be introduced to optimize the monitoring ability of the regeneration process, timely end the regeneration process, and improve the operation efficiency; the application of the related products will be helpful to reduce the emission of the internal combustion engine and improve the fuel consumption.

The utility model discloses a kind of motor vehicle exhaust filtering and purifying device, it is related to exhaust purification technical field.The utility model includes particle trap, further include: installation portion, the installation portion is arranged outside particle trap;And unlocking portion, the unlocking portion is arranged above particle trap;Wherein, unlocking portion is located in installation portion, the installation portion includes support assembly, the support assembly is located outside particle trap;And locking assembly, the locking assembly is provided with four, four the locking assembly is located in support assembly inside;Wherein, four the locking assembly is array distribution.The utility model sets up installation portion, solved the existing motor vehicle exhaust filtering and purifying device in use process, it is inconvenient to install particle trap on vehicle, in installation process, positioning needs to be repeatedly carried out by staff, then carries out complex operation, time-consuming and labor-saving, greatly reduced the installation efficiency problem of particle trap.

The utility model discloses a particle trap based on a honeycomb structure, which relates to particle traps and comprises a carrier. A plurality of air inlet duct groups and exhaust duct groups which are sequentially and alternately arranged around the center position of the carrier are arranged in the carrier, each air inlet duct group is composed of a plurality of air inlet ducts, and each air inlet duct is of a honeycomb-shaped hexagonal structure; the exhaust duct set is composed of a plurality of exhaust ducts, and the exhaust ducts are of a honeycomb-shaped hexagonal structure. And porous medium wall surfaces are arranged between the air inlet ducts and the exhaust ducts in the adjacent air inlet duct group and the exhaust duct group. By simulating the honeycomb hexagonal structure, the hydrodynamic characteristics are optimized, the back pressure is reduced, the particulate trapping efficiency is improved, the emission of particulate matters of a diesel engine is reduced, and positive significance is achieved for environmental protection.

1. The name of this design product: Particle collector. 2. Purpose of this design product: This design product is used as a particle collector in an air purifier to adsorb particles in the gas. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The invention discloses a particle trapping device suitable for an evaporation overcurrent experiment and a use method of the particle trapping device, and relates to the technical field of metal evaporation experiment research. And meanwhile, the trapping structure space adjusting module can adjust the space position of the distributed trapping sampling module, so that the measurement of the ion proportion and the research on the particle overcurrent distribution characteristics in the metal evaporation experiment process can be realized.

The invention provides a gas taking pipe assembly and a differential pressure sensor assembly. Comprising a first gas taking pipe, a second gas taking pipe and a buffer bottle, the first gas taking pipe is used for being communicated with the particle trap and transmitting the high-temperature gas flowing out of the particle trap; the second gas taking pipe is used for being communicated with a gas taking port of the differential pressure sensor; the buffer bottle comprises a containing cavity, the bottom end of the buffer bottle is communicated with the first gas taking pipe, the top end of the buffer bottle is communicated with the second gas taking pipe, and the orthographic projection of the end, located in the buffer bottle, of the first gas taking pipe in the first direction is staggered from the orthographic projection of the end, located in the buffer bottle, of the second gas taking pipe in the first direction; the first direction is the direction from the top of the buffer bottle to the bottom of the buffer bottle; wherein the accommodating cavity is used for condensing and storing the high-temperature gas flowing out of the first gas taking pipe, so that the high-temperature gas is prevented from entering the differential pressure sensor after being condensed. According to the method, the fault rate of the differential pressure sensor is reduced.

The application discloses a fixed-intercept zooming ring pumping orthogonal polarization controllable vortex double-ring laser, which comprises a fiber-coupled output semiconductor laser array (1), a plano-convex lens (2), a fixed-intercept zooming ring pumping beam generating system (3), a first conical mirror (4), a laser gain medium (5), a V-shaped crystal conical mirror (6), a plane mirror (7) and a second conical mirror (8). The laser can realize orthogonal polarization controllable vortex double-ring laser output, and the topological charge number of the laser vortex phase can be continuously adjusted. The fixed-intercept zooming ring pumping system can make the laser maintain high mode matching degree during the adjustment process. The spin angular momentum and the orbital angular momentum carried by the laser beam can improve the particle trapping efficiency and reduce the thermal damage of the biological cells caused by the laser beam. The double polarization characteristics of the inner ring tangential and the outer ring radial can be fully utilized, the particle can be captured, and high-resolution imaging can be performed at the same time, so that the application of the vector vortex light field in the biomedical field can be greatly expanded.

The invention relates to a silicon carbide particle trap and a preparation method and application thereof, the silicon carbide particle trap comprises a compact inner layer, a transition layer and an outer layer, the transition layer and the outer layer are sequentially stacked on the surface of at least one side of the compact inner layer, and the transition layer is arranged between the compact inner layer and the outer layer; the porosity of the compact inner layer is lt; the porosity of the transition layer is lt; the porosity of the outer layer; the average aperture of the compact inner layer is lt; the average aperture of the transition layer is lt; and the average pore size of the outer layer. According to the silicon carbide particle trap provided by the invention, by arranging the compact inner layer, the transition layer and the outer layer of which the porosity and the average pore size are sequentially increased and combining the design of the position relationship of all the layers, the thermal shock resistance of the particle trap is improved while the coexistence of high filtering efficiency and high mechanical strength of the silicon carbide particle trap is realized.

The invention discloses secondary cyclone dust removal equipment for underground air purification, and belongs to the technical field of coal mine dust removal equipment, the secondary cyclone dust removal equipment comprises a vertically arranged primary cyclone dust collector, and is characterized in that the upper part of the primary cyclone dust collector is communicated with a vertically arranged secondary cyclone dust removal integrator; the secondary cyclone dust removal integrator comprises a plurality of secondary cyclone dust removers which are distributed in a circumferential array manner, a dust collection barrel communicated with the lower parts of all the secondary cyclone dust removers, and an air collection barrel communicated with the upper parts of all the secondary cyclone dust removers. According to the dust removal equipment, the two-stage cyclone dust removers are adopted to work in parallel, compared with a traditional first-stage cyclone dust remover, the dust emission concentration is effectively reduced, and due to the fact that the multiple second-stage cyclone dust removers are arranged, fine particles can be captured more efficiently; the integrated design saves space and adapts to the underground narrow environment.

The invention discloses a regeneration control method of an integrated particle trap, the integrated particle trap comprises a shell and a core body, components for realizing oxidation type catalytic conversion and particle trapping are integrated in the core body, and the method comprises the following steps: in the regeneration process of the integrated particle trap, the components for realizing oxidation type catalytic conversion and particle trapping are integrated in the shell; detecting N parameters x1,..., xN capable of affecting the regeneration process, where N is an integer equal to or greater than 2, and a temperature at a downstream outlet of the integrated particulate filter; using a predetermined temperature mapping relation T (x1,..., xN) to determine controlled safety limit temperature values corresponding to the detection values of the N parameters x1,..., xN; if the temperature detection value at the downstream of the integrated particle trap is equal to or less than the controlled safety limit temperature value, considering that the regeneration process of the integrated particle trap is in a safe state; otherwise, the regeneration process is adjusted to reduce the internal temperature of the integrated particulate filter. The invention further discloses an engine exhaust gas aftertreatment system.

This invention provides a silicon carbide particle trap and its preparation method. The preparation method includes the following steps: (1) mixing silicon carbide raw materials, pore-forming agents, metallic silicon powder and high-temperature sintering aids to obtain a mixture; (2) mixing the mixture, binder and dispersant, molding and then sintering at high temperature to obtain the silicon carbide particle trap; wherein, the high-temperature sintering aid includes any one or a combination of at least two of boron carbide, boron nitride or yttrium zirconium powder. This invention optimizes the formulation composition, and the selected high-temperature sintering aid can, on the one hand, improve the phenomenon of product layering caused by the flow during the liquefaction of low-temperature sintering boride, significantly improving the refractoriness and strength of the product; on the other hand, it can optimize the compressive strength, thermal conductivity and coefficient of thermal expansion of the product, enabling it to better withstand high thermal shock during vehicle start-up and shutdown, and improving the overall performance of the particle trap.

The utility model relates to the technical field of particulate traps, and discloses a particulate trap filter element for a diesel engine, which comprises a mounting cylinder and a mounting cover I. The mounting cylinder comprises a mounting groove I and a mounting groove II, the mounting groove I is formed in the outer side of the interior of a mounting cylinder shell, and the mounting groove II is formed in the inner side of the interior of the mounting cylinder shell. The first mounting cover and the second mounting cover are detached from the two ends of the mounting cylinder through the external threads and the internal threads, the fixing column and the spiral blade can be directly taken out from the interior of the mounting cylinder, then the first ceramic filter cylinder and the second ceramic filter cylinder are poured out from the first mounting groove and the second mounting groove, the filter element can be detached, and the filter element is convenient to use. A fixed column and a first mounting cover are fixed through a supporting block, the rate of waste gas can be increased through a spiral blade, the waste gas can rapidly pass through a first ceramic filter cylinder and a second ceramic filter cylinder, rapid treatment of the waste gas is achieved, and the purification rate of the filter element is increased.

The application provides a kind of vehicle particle trap regeneration control method and system, by obtaining current particle information, and ECU application layer in flag information, and according to particle information, judge whether particle trap needs active regeneration, if yes, update the flag information in ECU application layer, control ECU will be sent to HCU after the flag information of update, and respond, generate response flag information and corresponding target parameter, then response flag information is fed back to ECU, simultaneously, ECU is called according to response flag information corresponding is target parameter, and generates control signal, control signal is used to control the active regeneration activity of particle trap, specifically, because the above-mentioned GPF regeneration control signal interaction method between ECU and HCU, can effectively solve the problem that GPF cannot be regenerated for a long time on hybrid vehicle due to hybrid strategy, and then appear the problem of blockage and failure phenomenon.

The utility model relates to the technical field of nano-particle liquid phase collecting devices, in particular to a device for preparing nano-powder through flame spray pyrolysis, which comprises a combustor, a flame combustion chamber, a precursor atomizer, a liquid phase collector and a suction mechanism. The precursor solution is subjected to high-temperature atomization and then is combusted through auxiliary flames to generate nano-particles and tail gas, the rear end of the flame combustion chamber is connected into a liquid phase collector, and the liquid phase collector is provided with a collecting liquid, a porous membrane substrate and a cooling device and used for filtering and collecting the nano-particles generated by combustion of the precursor solution; by means of a suction mechanism, tail gas containing nano-particles is subjected to micro-bubbling through a porous membrane matrix and then makes contact with collected liquid, then solid nano-particle flow is captured, and liquid-phase collection of nano-powder synthesized at the high temperature is achieved. According to the device, the problems of discontinuity, dissipation and low efficiency in the nano-particle trapping process are solved.

The application discloses a tail gas aftertreatment device, which comprises a selective catalytic oxidizer, a particle trap, a mixer and a selective catalytic reducer arranged in sequence along an axial direction, wherein the mixer comprises a mixing cylinder and a flow guide plate, and an inside of the mixing cylinder is formed with a mixing cavity; a rear air inlet part of the mixing cylinder is inwardly recessed, two sides of the rear air inlet part are symmetrical arc-shaped cylinder walls, the rear air inlet part is provided with a rear air inlet hole, and the two arc-shaped cylinder walls are respectively provided with a left air inlet hole and a right air inlet hole; the flow guide plate is arc-shaped and located at a rear side of the rear air inlet hole, and an arc-shaped channel is formed between the flow guide plate and the mixing cylinder and leads to the left air inlet hole, the right air inlet hole and the rear air inlet hole from a front side. The device can make the reducing agent and the exhaust gas fully mix, evaporate and decompose, and improve the mixing uniformity and the anti-crystallization performance.

The present invention discloses an aftertreatment system control method, an aftertreatment system control device, a computer device, and a computer storage medium. The aftertreatment system control method includes: obtaining a first pressure differential of a first particulate trap and a second pressure differential of a second particulate trap; comparing the second pressure differential with a first limit value, wherein the first limit value is used to indicate the amount of particulate deposited in the second particulate trap; comparing the first pressure differential with a second limit value, wherein the second limit value is used to indicate the operating state of the first particulate trap, based on the second pressure differential being greater than the first limit value; and triggering regeneration based on the first pressure differential being greater than the second limit value. The method of the present invention can control the aftertreatment system, clean the second particulate trap, reduce the probability of particulates clogging the second particulate trap, and thereby reduce the probability of increased exhaust backpressure caused by particulates clogging the aftertreatment system.

The invention relates to the technical field of particulate trapping, and particularly discloses a particulate trap and a preparation method thereof, a storage medium and a vehicle. The preparation method of the particulate trap comprises the steps that preset slurry is prepared, and the particulate trap is soaked in the preset slurry; after the adsorption is saturated, taking out the particulate filter, blowing to enable the loading capacity of the slurry in the particulate filter to be a first set target, and drying the particulate filter; preparing a gel powder solution, dipping the dried particle trap in the gel powder solution, taking out the particle trap after adsorption saturation, and placing the particle trap in a preset temperature environment for a preset time; and finally, preparing mixed sol, dipping the treated particle trap in the mixed sol until the loading capacity of the mixed sol reaches a second set target in the particle trap, and drying the particle trap to complete the preparation of the particle trap, so that the PN trapping rate of the particle trap can be improved, and the particle trap can be used for preparing the particle trap. And meanwhile, the rising amount of back pressure is reduced.

The invention discloses a particle trap active regeneration system and a control method and related equipment thereof, and the particle trap active regeneration system comprises a particle trap which is arranged at a vehicle chassis and is used for capturing and recycling waste gas exhausted by an engine of a vehicle; the catalyst is arranged between an exhaust port of the engine and the particle trap and used for catalyzing waste gas exhausted by the engine of the vehicle and preserving heat of the waste gas; the heating device is arranged at the gas inlet of the particle trap and is used for heating the waste gas entering the particle trap; the temperature sensor is arranged at the exhaust port of the particulate filter and is used for detecting the exhaust temperature of the exhaust port of the particulate filter; and the controller is connected with the temperature sensor and the heating device and used for controlling the heating device based on the vehicle working condition information of the vehicle and the exhaust gas temperature so as to heat the exhaust gas entering the particle trap.

The invention belongs to the technical field of tail gas treatment, and provides a method for preparing a particle trap by coating wide-granularity-distribution slurry, the slurry with wide granularity distribution is used for coating GPF, and the prepared particle trap has the advantages that the back pressure is obviously reduced, the service life is prolonged and the service life is prolonged while the high trapping efficiency is maintained. The device is suitable for a gasoline engine tail gas after-treatment system, particulate matter emission is effectively reduced, and increasingly strict emission regulation requirements are met.

The present application relates to the technical field of numerical simulation, and discloses a method for predicting the distribution characteristics of particles in a valve under wet gas-solid conditions. The method comprises establishing a three-dimensional model of the valve, dividing the model into grids, correcting the tangential and normal restitution coefficients in combination with the particle collision and rebound characteristics under wet gas-solid conditions, carrying out numerical simulation using the corrected collision and rebound model, and obtaining simulation data. Through data extraction and image processing, the flow distribution characteristic map and the particle distribution characteristic map inside the valve are generated, the particle accumulation area is determined according to the characteristic maps, the particle number density is extracted, and the high-concentration particle distribution inside the valve is quantitatively analyzed. Based on the quantitative analysis results, the particle capture rate parameter is extracted, and the particle capture characteristics caused by the wall liquid film under wet gas-solid conditions are obtained. The present method can effectively predict the particle distribution and accumulation characteristics inside the valve, and provide a basis for valve design and optimization.

Provided is a filler-containing film in which a core film having a through-hole is sandwiched between an insulating base layer and an adhesive layer and a filler is held in the through-hole, the filler-containing film being capable of suppressing the flow of resin in the core film, restricting unnecessary movement of the filler, and achieving good particle trapping properties when two members are bonded by pressure bonding via the filler-containing film, and also being capable of suppressing the resin flow in the core film and suppressing unnecessary movement of the filler. When a filler-containing film is applied to a conductive film or an anisotropic conductive film, good indentations can be obtained, good conductivity can be achieved between connected electrodes, and the filler-containing film satisfies formula (1) Od > = 2 * Pd-Ct and formula (2) 0.9 * Pd > = Ct. In the formula, Ct is the thickness of the core film, Pd is the average particle diameter of the filler, and Od is the opening diameter of the through hole of the core film.

The invention relates to a particle catcher for a gas-insulated metal-enclosed power transmission line, which belongs to the technical field of power transmission and distribution, and comprises a particle catching ring with high elongation, the particle catching ring is fixedly sleeved outside three support legs and is provided with a plurality of particle holes, the side surface of the particle catching ring in contact with the three support legs is a contact surface, and the contact surface is provided with a plurality of particle holes. The contact surface is in close contact with the three supporting legs, and the side face, corresponding to the space between every two insulators, of the particle capturing ring is an outwards-protruding arc face. According to the invention, the particle capturing ring is fixedly sleeved outside the three supporting legs, so that the particle capturing ring can be firmly fixed outside the three supporting legs of the insulator; then, the side face, corresponding to the position between every two insulators, of the particle capturing ring is designed to be an outwards-protruding arc face, the capturing area of the particle capturing device can be increased, under the impact of external airflow and particles, the elongation of materials of the particle capturing device is effectively utilized, targeted and controllable overall swinging or local elastic deformation is conducted, the particles are captured more actively and more efficiently, and the particle capturing efficiency is improved. The particle capturing efficiency is improved.

The utility model relates to a real-time particle monitor which comprises a shell, a host, an optical microscope, a light source and a particle trapping slide, the cross section of the shell is in a right trapezoid shape, a light source is installed in the shell, an optical microscope is fixed to the inclined face of the shell, and the optical microscope is an optical microscope with a ten-million-pixel high-precision camera. The optical microscope is connected with the light source; the light source is a light source with two angle crossed polarizers; a particle trapping slide is fixed at the bottom of the shell, is positioned right in front of a lens of the optical microscope and is parallel to a mirror surface of the optical microscope; the side face of the shell is fixedly connected with a host, and the optical microscope and the light source are both connected with the host. The detector has the advantages that compared with a traditional detector, the detector can identify metal particles; an out-of-tolerance particle sample can be captured and further analyzed; particle samples captured by the falling dust capturing slide can be subjected to a repetitive reproducibility test.

The present application is a kind of shallow inclined plate settling device and particle trapping method, the device includes a plurality of settling layers, each settling layer includes a plurality of shallow settling units, shallow settling unit includes an inclined plate group, the inclined plate group includes a bottom inclined plate and a plurality of upper inclined plates arranged in parallel and spaced, between adjacent upper inclined plates, between the bottom inclined plate and the upper inclined plate adjacent thereto, a flue gas settling channel is formed, the inclined plate group is downwardly inclined on one side of the flue gas settling channel inlet to make the trapped particles flow downward, the bottom inclined plate and each upper inclined plate are arranged as an arched folded plate upwardly arched, the arch crown fold line of the arched folded plate is arranged along the flue gas flow direction; the inclined plate group is provided with a tail baffle plate on one side of the flue gas settling channel outlet. Each inclined plate of the present application is inclined in double axis direction, which reduces the influence of deformation caused by high temperature thermal stress on the settling effect of the inclined plate; the tail baffle plate is arranged behind the shallow settling unit, which reduces the front washing of the next contact unit when the high temperature flue gas flows out.