271 results about "Particle flow" patented technology

The invention discloses a radiator micro-channel structure integrity detection method based on acoustic measurement, and relates to the technical field of information, the method couples acoustic propagation measurement with density inversion and particle transport observation, firstly screens a key observation object according to density gradient change, and then constructs a hydrodynamic equilibrium graph by using auxiliary particle flow, and finally obtains the structural integrity of the radiator micro-channel. And channel-by-channel difference is carried out with reflection measurement of standard acquired data, so that defects are indicated by three domains of energy, time and space together. According to the closed-loop link, the sensitivity to tiny blockage, slight deformation and early crosstalk is remarkably improved, the false alarm rate that single measurement is easily influenced by noise and working condition fluctuation is reduced, fine positioning of channel-level abnormal positions and ranges is achieved, and the closed-loop link is suitable for high-resolution detection of dense micro-channel arrays without disassembly or destructive operation.

The invention relates to the field of multiphase numerical simulation, and discloses a large-scale particle flow numerical calculation method based on multi-ball filling, and the method comprises the steps: obtaining a fluid domain grid size, a fluid density and a large particle radius; calculating the radius of the small filling ball according to the size of the fluid domain grid; based on golden angle spiral distribution and minimum distance coverage judgment, determining the number and the positions of small filling balls, and generating a large particle model of multi-ball filling; obtaining the background flow field speed of the large particles and the filling small balls in the current time step, and calculating the background flow field speed and drag force of the large particles; updating through iterative calculation to obtain the speed and the position of the large particles and the small filling balls in the next time step; and adding drag force as a source item into a momentum equation to solve fluid motion, and obtaining a fluid computational domain grid speed in the next time step. Accurate numerical simulation of large-scale particles is realized.

The invention relates to the technical field of high-pressure precise physical experiments, in particular to an irradiation sample table. A to-be-tested sample is placed on the sample table, and the second gland and the first gland are detachably connected to the sample table in sequence, so that the holes in the first gland and the second gland correspond to the to-be-tested sample. The size of the hole is smaller than the diameter of the to-be-detected sample, so that the radiation area is smaller than the diameter of the to-be-detected sample; moreover, the second gland is a ceramic gland and has good insulation performance, so that the situation that plasma directly bombards a sample table to generate an edge effect during irradiation, and adverse effects on judgment and separation of real particle flow density distribution borne by the surface of the to-be-detected sample are generated can be avoided. When samples of different sizes need to be replaced, only the first gland and the second gland which are provided with the open holes matched with the samples in size need to be replaced, operation is easy and fast, cost is low, and the experiment continuity and efficiency cannot be affected.

The self-adjusting abrasive flow clamp is suitable for machining a tee joint through the abrasive flow technology and is characterized in that the self-adjusting abrasive flow clamp comprises a base, a baffle ring, a surrounding cylinder, a first arc-shaped bent pipe, a second arc-shaped bent pipe and a third arc-shaped bent pipe, opening structures are arranged at the two ends of the surrounding cylinder, a mounting hole is formed in the baffle ring, and an arc-shaped protrusion is arranged on the top face of the base; when abrasive particles enter through the third arc-shaped bent pipe, the abrasive materials flow out only through the first arc-shaped bent pipe; when the grinding materials are input through the groove, the grinding materials enter the tee joint through the second arc-shaped bent pipe and are output through the top end of the third arc-shaped bent pipe, the tee joint grinding efficiency is improved, and time consumption is reduced.

The utility model discloses a particle pairing device and a pairing system, the pairing device is used for controlling pairing of a first particle and a second particle in a micro-fluidic chip, and the particle pairing device comprises a detection module and a valve control module electrically connected to the detection module, the detection module is used for identifying first particles when a first particle solution flows through a first particle flow channel of the micro-fluidic chip, is also used for identifying second particles when a second particle solution flows through a second particle flow channel of the micro-fluidic chip, and is electrically connected to the valve control module; the valve control module is used for blocking the first particle flow channel when the detection module recognizes the first particles and blocking the second particle flow channel when the detection module recognizes the second particles. Therefore, pairing of a single first particle and a single second particle can be realized, for example, when the first particle and the second particle are respectively cells and microspheres, the accuracy and efficiency of pairing of the cells and the microspheres can be improved, and then the efficiency of single cell sequencing is improved.

The invention belongs to the technical field of part processing, and provides a multi-harmonic excitation conformal polishing and grinding device and method for ring parts, the device adopts a double-mass double-excitation four-machine reverse split driving mechanical vibration system, high-frequency large-amplitude compound vibration of a conformal container is realized, and the polishing and grinding efficiency is improved. Therefore, the particle medium is driven to perform efficient longitudinal spiral motion around the ring part; the rotary motion of the ring part cooperates with the geometric constraint of the conformal container, so that the relative motion between the particle medium and the ring part is improved, an alternating stress flow field is formed in the ring part, and the problem that the inner surface machining efficiency and the outer surface machining efficiency are inconsistent due to the splitting effect of the ring part on the particle flow field is successfully solved. By means of the method, the problems of low machining efficiency, uneven machining and poor surface quality existing in a traditional finishing machining method for the ring parts with the cartridge receiver and the flame tube as typical parts can be solved, and the machining cost is reduced while the machining precision and the surface quality of the ring parts are improved.

The invention discloses a grouting anchor rod with built-in plugging particles and a working method thereof.The grouting anchor rod comprises a hollow anchor rod body, the anchor rod body is installed in a drill hole, and the anchor rod body and an orifice of the drill hole are plugged through a stop-grouting plug; the interior of the anchor rod serves as a slurry channel, a plurality of slurry outlet holes are formed in the anchor rod in the axial direction at intervals, plugging particles wrapped by a water-soluble film are arranged on the inner wall face of the anchor rod, after slurry enters the anchor rod, the water-soluble film dissolves and releases the plugging particles, and the plugging particles flow out of the anchor rod along with the slurry through the slurry outlet holes for plugging; the blocking particles are self-expanding particles; the grouting anchor rod structure is improved, in the grouting process, grout can carry plugging particles with specific response performance to enter cracks and automatically expand and condense, a stable and compact flow blocking structure is formed, and the grouting efficiency, the supporting quality and the engineering safety are greatly improved.

The invention belongs to the field of geologic disaster prevention and control of geotechnical engineering, and provides a multi-scale numerical simulation method for a slope instability mechanism of a ductile shear zone, which comprises the following steps: acquiring physical and mechanical parameters of a rock-soil body material, and establishing a numerical model based on a particle flow discrete element method; a Johnson-Kendall-Robert contact model is adopted as a contact model between particles, the contact force between the particles is calculated, and meanwhile, a pressure interference parameter is defined to control the limit value of normal contact rigidity; performing dynamic modeling of the discrete element particle system based on a particle generator; static modeling of a discrete element particle system is carried out based on a Lagrange body continuous unit component; the acting force of discrete element particles is converted into equivalent grid node force through an equivalent node force conversion method, and surface attributes of all unit sets possibly involved in contact are defined in a solver.

The invention discloses a current deposition calculation method and device in particle grid simulation and a storage medium, and relates to the technical field of particle flow simulation, and the method comprises the steps that a VPU determines the shape function value of each dimension of a particle and the current weight of each dimension based on the particle data of the particle corresponding to a target grid unit; taking two particles with adjacent index positions as a particle pair, and constructing a first operand vector and a second operand vector corresponding to the particle pair by the VPU based on the shape function value and the current weight of each dimension; the MPU executes matrix outer product operation on the first operand vector and the second operand vector, matrix outer product operation results in the target grid unit are accumulated until a total contribution matrix corresponding to the target grid unit is obtained, the VPU merges the total contribution matrix to a global current array, and the global current array is obtained. The technical problem that the performance of the particle grid simulation algorithm is limited due to the multi-thread writing conflict in the global merging stage is solved, and the expandability and the calculation efficiency of the particle grid simulation algorithm are improved.

The present application relates to the technical field of radar detection, and particularly relates to a particle flow multi-parameter detection method based on MIMO-FMCW radar, a medium and equipment, the particle flow multi-parameter detection method based on MIMO-FMCW radar comprises the following steps: S1, arranging a virtual channel array structure of × in a detection area, and obtaining a digital signal matrix of multiple frames of measurement data corresponding to the detection area by using the virtual channel array structure; S2, obtaining multiple parameters of the particle flow in the detection area based on the digital signal matrix.The present application synchronously obtains data in the time, frequency and spatial domain by using the MIMO-FMCW radar system, realizes the joint measurement of the multiple parameters of the particle flow, can extract the speed information by the Doppler effect of the FMCW signal, can form a virtual channel to extract the angle information, and simultaneously combines the signal amplitude to estimate the concentration, so that comprehensive particle flow movement characterization is realized.

A radiation device comprises at least a vacuum chamber (1), an electromagnetic accelerator (8) for generating a primary energy beam of ions inside the vacuum chamber (1), and a layer of material (S) carried by a support (4) rotating in the vacuum chamber (1) to generate a flow of particles when a series of nuclear fusion reactions are triggered on the material (S) thanks to the energy of said beam, and wherein the support (4) is hollow and sealed defining a rotating three-dimensional surface that surrounds a containment volume for a cooling liquid in heat exchange with the layer of material (S), such rotating three-dimensional surface defining a heat exchange surface wetted by the liquid, and wherein a level of the free surface of the liquid on the heat exchange surface moves upwards in use due to the action of the centrifugal acceleration generated by the rotation of the support (4).

The invention relates to the technical field of radar detection, in particular to a particle flow multi-parameter detection method based on an MIMO-FMCW radar, a medium and equipment, and the method comprises the steps: S1, arranging an x virtual channel array structure in a detection region, adopting a virtual channel array structure to obtain a digital signal matrix of multi-frame measurement data corresponding to the detection area; and S2, obtaining multiple parameters of the particle flow in the detection area based on the digital signal matrix. The MIMO-FMCW radar system synchronously obtains data in time, frequency and space domains, multi-parameter combined measurement of particle flow is achieved, speed information can be extracted through the Doppler effect of FMCW signals, a virtual channel can be formed to extract angle information, meanwhile, the concentration is estimated in combination with the signal amplitude, and comprehensive particle flow characterization is achieved.

The invention relates to the field of multiphase numerical simulation, and discloses a cross-scale particle flow calculation method based on feature point arrangement, and the method comprises the steps: obtaining the position coordinates, speed, radius and augmentation coefficient of particles in a current time step, and the position coordinates, volume and speed of all fluid domain grids; determining position coordinates of the feature points according to the grid volume, the particle radius and the augmentation coefficient; dividing grids where the feature points are located into internal grids, boundary grids and external grids on the basis of the position relationship between the feature points and the particles, calculating the voidage of each grid in different modes, and calculating the background voidage of the particles; the background flow field speed of the particles is calculated according to the grid voidage, the volume and the speed; according to the background voidage, the speed and the background flow field speed of the particles, the drag force borne by the particles is calculated, and therefore numerical calculation of the cross-scale particles is achieved.

The application discloses a kind of abrasive grain flow microchannel polishing quality reliability analysis systems, including abrasive grain flow polishing system, quality detection system and reliability analysis system, the abrasive grain flow polishing system is used in the polishing processing of microchannel in microfluidic chip;The quality detection system is used to carry out quality detection to the microchannel after processing, and obtains detection value R1;The reliability analysis system carries out reliability analysis to processing quality, and the information basis of analysis is processing parameter P and the microchannel processing quality detection value R1 obtained by detection;The reliability analysis system transmits adjusted processing parameter to the abrasive grain flow polishing system, and is used to control microchannel polishing.The application also discloses a kind of abrasive grain flow microchannel polishing quality reliability analysis method.The application utilizes new learning function, and the correlation coefficient introduced by new learning function, improves the accuracy of model in threshold value vicinity, and can avoid the accuracy in low correlation area, ensures the accuracy of reliability analysis.

The application discloses a micro-fluidic chip and a micro-fluidic system, and relates to the technical field of single-cell analysis. The micro-fluidic chip comprises a first sample inlet module and a second control module. The first sample inlet module has a first detection position and a second detection position. The first sample inlet module is used for providing first particles and second particles. The first detection position is used for detecting the first particles. The second detection position is used for detecting the second particles. The first sample inlet module transports the detected first particles and second particles through a symmetrically arranged flow channel structure. In addition, the first detection position and the second detection position are symmetrically arranged, so as to shorten the time difference of the first particles and the second particles flowing to the pairing flow channel, and to improve the problem of hysteresis of any one of the first particles and the second particles in the pairing process.

The invention discloses a method for predicting a slump range of a weak area of a high valley heap type dumping site, and the method comprises the steps: obtaining high-precision topographic data of the dumping site and an original earth surface through a three-dimensional modeling technology, and constructing a triangulation network model; performing grid reconstruction processing on the triangulation network model to generate a mixed hexahedron closed grid model suitable for numerical calculation; calculating and delineating a maximum strain increment position on the basis of a three-dimensional strength reduction method in combination with field physical test and laboratory mechanical test data, and determining a weak area of the high valley heap type dumping site; and establishing a landslide particle flow model of the weak area of the high valley heap type refuse dump, and simulating and predicting three-dimensional space distribution of a slump influence range through fluid dynamics. According to the method, the limitation of traditional plane strain analysis is broken through, the three-dimensional visual prediction of the landslide influence range under the complex terrain is realized, the disaster early warning precision of the dumping site is remarkably improved, a scientific decision basis is provided for mine safety protection, and the landslide accident risk and protection cost are effectively reduced.

The utility model relates to the technical field of plastic particle screening, in particular to a screening mechanism of a plastic granulator, which comprises a bottom plate and a screening box, an inclined socket is clamped on one side of the screening box, a small-hole screen plate, a medium-hole screen plate and a large-hole screen plate are respectively clamped on one side of the inclined socket, and two side plates are fixedly connected with one end of the screening box. According to the plastic particle blanking device, the baffle is moved to the position between the small-hole sieve plate and the middle-hole sieve plate, then plastic particles are intercepted by the blocking plate and roll downwards, the blanking speed of the plastic particles is reduced, the time of the plastic particles staying on the small-hole sieve plate is prolonged, and the plastic particles are prevented from falling off from the middle-hole sieve plate. According to the plastic particle screening mechanism, plastic particles can be better screened through the small-hole screening plate, then the plastic particles can be continuously turned over through the two transverse plates on the driven rotating rod, it is ensured that the plastic particles flow and are fully and comprehensively screened, it is avoided that the plastic particles are accumulated at one position all the time, screening work is accelerated, and the production efficiency of the screening mechanism is improved.

The invention relates to a high-temperature carbon particle cooling device and system, the device comprises a particle channel and at least one heat exchange channel arranged in the particle channel, and the heat exchange channel is arranged along the axial direction of the particle channel. The heat exchange channel comprises at least one heat exchange coil pipe which is coiled in a spiral shape. When the heat exchange channel comprises a plurality of heat exchange coil pipes, the heat exchange coil pipes are coaxially arranged, the heat exchange coil pipes are connected in parallel or in series or in series-parallel connection in a mixed mode, and the connecting positions of the heat exchange coil pipes are located outside the channel where the high-temperature carbon particles flow. The cooling device recovers waste heat of the high-temperature carbon particles in a high-efficiency and high-grade mode, so that the requirement for other energy sources is reduced, and the comprehensive utilization rate of the energy sources is improved. The joints of the heat exchange coil pipes are all located outside the channels where the particles flow, so that the joints are prevented from being damaged due to direct long-term contact with the high-temperature carbon particles, and the situation of heat exchange medium leakage caused by the quality problem of the joints in the channels where the high-temperature carbon particles flow is avoided.

To provide an in-vacuum pipe particle monitoring device and an in-vacuum pipe particle monitoring method for widely monitoring particles contained in gas flowing in a vacuum pipe.SOLUTION: A vacuum piping particle monitoring device (1) and a vacuum piping particle monitoring method, which are characterized by having a first pipe (6), a second pipe (2) through which a gas containing particles flows, an intersection (5) where the first pipe (6) and the second pipe (2) intersect, a light film forming means for forming a planar light film (13) inside the first pipe (6), and an observation means (21) for observing scattered light emitted by the particles, wherein the light film (13) is formed so as to cover at least 10% of the cross-sectional area of the second pipe (2) at the intersection (5), and the scattered light is emitted by the particles coming into contact with the surface of the light film at the intersection (5).SELECTED DRAWING: Figure 2

The invention relates to a device (10) for collecting brake dust from a disc brake (102), comprising a particle receiving device (12) for receiving brake particles (BP) generated by friction between a brake pad (110) and a brake disc (108) of the disc brake (102), and one or more flow disturbance bodies (14, 14a, 14b) which are designed to be surrounded by a particle flow (PS) comprising brake particles (BP) and to generate flow vortices (W, WR, WL) in the particle flow (PS), which convert a laminar particle flow (LPS) flowing along the brake disc (108) into a turbulent particle flow (TPS).

This invention relates to a coal and rock identification system and method based on spectral detection, comprising a collection chamber and a detection device. The detection device includes a detection chamber, a detection tube, a spectral detection mechanism, and a first suction mechanism. One end of the detection tube is connected to or disconnected from the collection chamber, and the other end extends into the detection chamber. During detection, the collection chamber is first disconnected from the detection tube, and the first suction mechanism suctions the detection chamber to create a pressure difference, resulting in a lower air pressure in the detection chamber than in the collection chamber. After suction, the detection tube is reconnected to the collection chamber, and dust particles in the collection chamber form a particle flow within the detection tube under the pressure difference. The spectral detection mechanism detects the particle flow within the detection tube. This invention utilizes static pressure difference to achieve rapid and stable dust settling to form a particle flow, improving the stability of spectral detection and accelerating the overall detection speed, enabling real-time and accurate identification of coal and rock during coal mining.

1. The name of the design product: ionized particle flow device. 2. The use of the design product: central air conditioning ionized particle flow device for fresh air supply in hospital pathology department or other medical teaching laboratory. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses an atomization device, and belongs to the technical field of atomization devices. Comprising a support, a shell assembly and a first sealing piece, a containing cavity is defined by the support and the shell assembly, and the first sealing piece is arranged in the containing cavity and connected with the support in a sealed mode; the atomization device is provided with a main air channel and a sensor air channel, the support and the shell assembly define the main air channel, the support, the shell assembly and the sealing piece define the sensor air channel, the main air channel and the sensor air channel are independent from each other, and in the first direction, the end, close to the atomization bin, of the sensor air channel is located between the end, close to the atomization bin, of the main air channel and the atomization bin. The sensor air channel is physically isolated from the main air channel, aerosol, liquid drops or turbulent flow is prevented from directly impacting the sensor, the sensor air channel is higher than the main air channel, gravity settling and inertial separation are utilized, most atomized particles flow along the main air channel due to self weight and inertia, and the situation that atomized media, condensate and aerosol enter the sensor air channel is reduced; and the air passage of the sensor is prevented from being blocked.

The application relates to the technical field of particle flow simulation, in particular to a CAE simulation method for C-type particle flow state based on a double Euler model, which defines model parameters under a secondary agglomeration theoretical model according to the agglomeration mechanism of C-type particles from initial agglomeration to secondary agglomeration, the model parameters including particle phase diameter, particle phase density, particle phase volume fraction and particle phase shear viscosity, thereby establishing a local dynamic agglomeration particle model (LDAP model) for C-type particles based on an Euler multiphase flow model, and performing C-type particle flow state simulation; the method can realize the setting of numerical simulation conditions and the simulation of the flow behavior of C-type particles through simple flow field calibration and parameter setting, can intuitively reflect the real-time state of the particle agglomerate diameter at any local position in the flow field, has higher accuracy in describing the motion state of particles and gas under the condition of particle agglomerate diameter difference, and can balance the calculation efficiency without increasing the number of particle phases for varying particle diameters.

The invention provides a 3D printing rubber thermal insulation material and a preparation method thereof. The thermal insulation material comprises base rubber, an anti-ablation filler, anti-ablation fibers, a low-density filler, a thixotropic agent, a tackifier and a curing agent. The adhesive comprises the following components in parts by weight: 100 parts of base rubber; 10 to 30 parts of an anti-ablation filler; 10 to 30 parts of anti-ablation fiber; 1-10 parts of a low-density filler; 0.5 to 5 parts of a thixotropic agent; 0.5 to 5 parts of a tackifier; and 3-10 parts of a curing agent. The prepared heat insulation slurry is in a liquid state or a paste state, can be extruded under the condition of low pressure of 1-5 MPa to realize 3D printing, and is low in extrusion difficulty and low in equipment requirement; and by adopting the synergistic effect of the carbon-series, nitrogen-series and boron-series anti-ablation fillers, a firm porcelain layer skeleton is formed in the ablation process, so that the erosion of high-temperature airflow and particle flow of an engine can be effectively resisted, and the anti-ablation performance of the heat insulating layer is improved.

The invention provides a particle control device and method based on a special sound wave sound beam, and the device comprises a micro-channel which comprises a first channel; the particle focusing unit is used for arranging particles in the fluid in the first flow channel in a queue and enabling the particles to pass through the following detection units one by one; the detection unit is used for detecting the particles in the queue so as to identify the first particles included in the queue; and the first special ultrasonic device is tightly attached to the micro-channel and is used for generating a special sound wave beam current with expected intensity when the first special ultrasonic device is started, and the first particles flowing through the first special ultrasonic device are driven to flow to other laminar flow in the first channel or flow to a target channel through the special sound wave beam current. According to the invention, deviation of the moving direction of the target particles can be accurately controlled.

The present invention relates to an atomizing device, which comprises: an atomizing chamber; and an aerosol output channel, connecting the atomizing chamber with the external environment; wherein, the conveying direction of at least part of the aerosol output channel intersects with the air inlet direction of the aerosol output channel, and / or the conveying direction of at least part of the aerosol output channel intersects with the air outlet direction of the aerosol output channel. In the above-mentioned atomizing device, the aerosol particles flowing through the aerosol output channel undergo irregular motion, thereby increasing the probability of aerosol particles colliding with each other, and aerosol particles with smaller particle sizes combine to form aerosol particles with larger particle sizes, thereby effectively reducing the proportion of aerosol particles with a particle size of approximately 0.62 μm and 0.78 μm, and increasing the proportion of aerosol particles with a particle size of approximately 1.32 μm. Therefore, most of the aerosol particles output by the atomizing device of the present application have a particle size of 1 μm-5 μm, have a high lung deposition rate, and effectively improve the effective utilization of the active ingredients in the aerosol.

This invention relates to multiphase numerical simulation and discloses a multi-scale particle flow calculation method based on Fibonacci volume partitioning. The steps include: obtaining the particle (velocity, coordinates, particle size, expansion coefficient) and fluid mesh (volume, velocity, coordinates) parameters for the current time step; filtering the particle background mesh and extracting its parameters; generating uniformly distributed discrete points based on particle information and mesh size, and allocating the volume of each point to the corresponding element to calculate the fluid mesh porosity; calculating the particle background porosity and background velocity based on the mesh parameters within the expansion domain; determining the relative velocity and calculating the particle drag force based on the particle velocity, background velocity, background porosity, and particle size; substituting the drag force into the momentum equation to obtain the state parameters of the particle and fluid mesh for the next time step, thus realizing multi-scale particle flow.

The invention relates to a microfluidic chip for cell sample enrichment and detection by a Dean flow method based on impedance feedback, in particular to a Dean flow microfluidic chip for realizing flow velocity adjustment through impedance detection. The device comprises a Dean flow micro-fluidic chip, an off-chip fluid driving module, a detection module and a control module, the fluid driving module is used for driving fluid in the Dean flow micro-fluidic chip so as to control the flow velocity; the detection module is used for detecting impedance data on a Dean flow channel, amplifying the impedance data, collecting the impedance data and then calculating the impedance data; and the control module is used for analyzing and calculating the calculation result of the detection module to obtain the flow speed required by the Dean flow channel and feeding back the flow speed to the fluid driving module. Impedance detection can be carried out on the enrichment effect of the micro-fluidic chip under various Deen flow systems in real time, impedance detection contains particle size, particle concentration and particle flow channel position information, and the characteristics of easy arrangement, real time and high efficiency are achieved.

The application discloses a coal gangue treatment system and a treatment method. The coal gangue treatment system comprises a crushing assembly, a screening assembly and an air jigging assembly. The crushing assembly is used for crushing coal gangue. One end of the screening assembly is connected with one end of the crushing assembly, so that the crushed coal gangue flows into the screening assembly. The screening assembly is used for screening the crushed coal gangue into coarse particles, fine particles and target particles according to particle size. The other end of the screening assembly is connected with the other end of the crushing assembly, so that the coarse particles screened by the screening assembly flow into the crushing assembly. The air jigging assembly is communicated with the screening assembly, so that the target particles flowing out of the screening assembly flow into the air jigging assembly. The air jigging assembly is used for sorting according to the density of the target particles. The air jigging assembly is communicated with the crushing assembly, so that the light material flowing out of the air jigging assembly flows into the crushing assembly. The coal gangue treatment system has the advantages of high treatment efficiency and low cost.