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80 results about "Particle adsorption" patented technology

In analogy to molecular systems, particle adsorption can be defined as a process leading to a significant increase in concentration occurring in a thin layer adjacent to an interface, usually liquid/solid or liquid/air.

Method for simulating and predicting concentration of heavy metals in water body

The invention discloses a water heavy metal concentration simulation and prediction method, which comprises the following steps: integrating original monitoring data, hydrodynamic data, total suspended solids, image remote sensing data and human activity data, and generating a multi-source cleaning sequence data packet; executing cross-modal adsorption capacity estimation by using image remote sensing data in the data packet, inferring particle chemical composition and adsorption isotherm parameters from image textures, and generating a capacity feature packet containing an adsorption capacity upper bound; time-varying travel time is calculated based on the hydrodynamic data and the human activity data, causal alignment is performed on the capacity feature packet and the upstream signal, and a travel time alignment feature packet is generated; and in combination with metal fingerprint parameters, applying an adsorption capacity upper bound as a physical constraint on a form distribution constraint head, explicitly decoupling and predicting the form, and generating a prediction result packet. According to the method, the hydrodynamic physical mechanism and the particle adsorption chemical mechanism are deeply coupled, and the prediction precision and the physical consistency of the model under the unsteady state condition are improved.
Owner:NANJING HYDRAULIC RES INST

Simulation self-cleaning decorative cloth UV printing ink coating device

The invention discloses a simulation self-cleaning decorative cloth UV printing ink coating device, and relates to the technical field of printing, the simulation self-cleaning decorative cloth UV printing ink coating device comprises a bearing base, a conveying roller set is fixedly installed at the right end of the upper portion of the top of the bearing base, and through cooperation of a powder particle adsorption assembly, an ink transfer printing assembly and a vibration assembly, the powder particle adsorption assembly and the ink transfer printing assembly are matched; positive and negative charges generated by the positive and negative conductive metal plates cover the peripheral side of the surface of the coating rod, the adsorbability of charge particles on the surface of the printing fabric is improved, a direct-current electromagnetic field is formed outside the coating rod through the feeding motor, the lead screw and the three sets of magnetic rings, and the titanium dioxide is further made to be evenly dispersed in the coating rod under the matching of the mass of the titanium dioxide. The titanium dioxide can be singly captured by charges covering the surface of the fabric to be printed, accumulation of titanium dioxide on the surface of the printed fabric is reduced, and the phenomenon that in the subsequent printing operation process, due to the fact that gaps exist between ink and the printed fabric, ink blocks fall off in the subsequent printing and drying operation is reduced.
Owner:JIANGSU VEIK TECH & MATERIALS CO LTD

Combined inhibitor for flotation of scheelite with high mud content and application

The invention discloses a combined inhibitor for high-mud-content scheelite flotation and application, belongs to the technical field of scheelite flotation, and aims to solve the technical problems that in the high-mud-content scheelite flotation process, argillaceous particle adsorption agents and gangue inhibition are not thorough, and an existing inhibitor is poor in selectivity, large in dosage and the like. The combined inhibitor comprises tannic acid / sodium humate and metal ions and is matched with the pH regulator to form a flotation reagent system, the collecting agent is prepared by compounding sodium oleate, oxidized paraffin soap and sodium dodecyl benzene sulfonate according to the mass ratio of 3: 1: 1, and the foaming agent is MIBC or terpenic oil. Through the synergistic effect of tannic acid / sodium humate-metal ions, mud dispersion and inhibition of fluorite and calcite can be synchronously achieved, and flotation of scheelite with the high mud content is enhanced; through one-stage roughing, three-stage scavenging and three-stage heating concentration, the grade and the recovery rate of WO in scheelite concentrate are improved, and the method is low in reagent dosage, environmentally friendly and suitable for industrial production.
Owner:ZHENGZHOU UNIV

Ruggedized computer dust particle prediction and self-adaptive dust prevention method and system

The invention relates to the technical field of ruggedized computer protection, in particular to a ruggedized computer dust particle prediction and self-adaptive dust prevention method and system. The method comprises the following steps: constructing an air duct airflow state boundary model; motion paths of dust particles with different particle sizes are estimated based on the model, collision detection and stagnation trajectory analysis are executed, and a deposition probability distribution structure is generated; extracting a high deposition risk area, constructing an electrostatic diversion field regulation and control structure, and calculating diversion electrode control parameters; generating an electrode instruction to drive the diversion control module to deflect dust particles; configuring a dust collection area according to the dust particle deflection path and carrying out particle adsorption; and a feedback control vector is generated in combination with the residual dust particle monitoring data and the control parameters, so that self-adaptive updating of electrostatic regulation and control is realized. On the premise that a sealing structure is not needed, dust particle behaviors can be accurately predicted based on CFD and a differential model, the deposition trend of the dust particles is dynamically regulated and controlled, and high-reliability active dustproof control in a complex operation environment is achieved.
Owner:BEIJING YANXINTONG TECH CO LTD

Forest fire smoke particle adsorption degree prediction method, system, equipment and medium

The invention discloses a forest fire smoke particle adsorption degree prediction method, system and device and a medium, and belongs to the field of power systems, and the method comprises the steps: obtaining forest fire data of a to-be-predicted overhead transmission line under a forest fire condition in a preset time period; inputting the forest fire data into a simulation calculation model, so that the simulation calculation model constructs a simulation model corresponding to the overhead transmission line to be predicted according to the forest fire data, determining a corresponding relation between coordinate data of each smoke particle and each simulation area according to the simulation model, and calculating the number and quality of the smoke particles in each simulation area, and outputting an adsorption degree prediction result corresponding to the target simulation area, the simulation model comprising a plurality of simulation areas, and each simulation area being obtained by division according to the space field intensity of the to-be-predicted overhead transmission line, so that through implementation of the method, the adsorption degree of the smoke particles in the overhead transmission line can be accurately predicted, and the prediction accuracy of the adsorption degree of the smoke particles in the overhead transmission line is improved. And the safety of the power system is improved.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID CO LTD

Porous carbon particle adsorption material capable of preparing ultra-pure helium through one-step purification as well as preparation method and application of porous carbon particle adsorption material

The invention discloses a porous carbon particle adsorption material capable of preparing ultra-pure helium through one-step purification as well as a preparation method and application of the porous carbon particle adsorption material. The method comprises the following steps: (1) carbonizing biomass particles; (2) dipping the carbonized biomass particles in a nitrogen source-containing aqueous solution; (3) carrying out CO2 activation pore-forming and nitrogen functional group doping on the nitrogen source impregnated carbonized biomass particles obtained in the step (2) at high temperature; and (4) fully activating the nitrogen source impregnated carbonized biomass particles, performing programmed cooling, and introducing water vapor to perform secondary pore forming and oxygen functional group doping to obtain the porous carbon material. According to the method, the porous carbon particle adsorbent is prepared from natural biomass, the pore size distribution is concentrated, nitrogen and oxygen containing functional groups are rich, the adsorbent has ultrahigh adsorption and capture capacity on various impurities in the crude helium under the low-temperature condition, the impurities in the crude helium can be removed in one step, the helium is purified to reach the 6N standard, and the method is suitable for industrial production. And the application requirement of high-efficiency removal of impurities in the production process of ultra-pure helium is met.
Owner:SOUTH CHINA UNIV OF TECH

Molecularly imprinted adsorption material taking metal organic framework as carrier skeleton as well as preparation method and application of molecularly imprinted adsorption material

The invention discloses a molecularly imprinted adsorption material taking a metal organic framework as a carrier skeleton as well as a preparation method and application of the molecularly imprinted adsorption material, and belongs to the technical field of adsorption materials. The preparation method comprises the following steps: carrying out hydrothermal reaction on transition metal salt and a phthalic acid ligand to obtain metal organic framework nanoparticles; the preparation method comprises the following steps: adsorbing flavonoid template molecules by metal organic framework nanoparticles, mixing with lysozyme and a disulfide bond reducing agent, performing phase change polymerization, and eluting to remove the flavonoid template molecules after the phase change polymerization is completed, thereby obtaining the molecularly imprinted adsorbing material with abundant imprinting sites and good stability. The adsorbent is good in flavonoid compound adsorption selectivity, high in rate, large in capacity, good in chemical stability, resistant to acid washing, capable of being recycled for multiple times and capable of being widely applied to extraction and separation of flavonoid compounds.
Owner:XUCHANG UNIV

A flue gas purification device and method for thermal power plants

The application discloses a flue gas purification device and method for thermal power plants, which comprises a combined installation cylinder, one end of the combined installation cylinder is provided with a positioning installation sleeve, and the other end of the combined installation cylinder is provided with a positioning installation cylinder, further comprising: a threshold capture leading-out mechanism and a sequential processing mechanism matched with the threshold capture leading-out mechanism, which can be quickly combined and installed according to different purification requirements, realize multi-level purification operation, and have transportation convenience and maintainability; can synchronously realize liquefaction promotion of fine particulate matter capture effect, and automatically periodically clean and process captured substances through a threshold mechanism, while cooperating with passive centrifugal oscillation demolding, so that the substance capture capacity of the device is stably maintained for a long time, so as to improve the efficiency and service life of the device; can improve the particle adsorption effect through the heat absorbed by condensation, and optimize the acid-base washing structure, further improve the purification level of the device.
Owner:NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP

Device for purifying nonmetallic mineral pollution in rural drinking water

The utility model discloses a purification device for nonmetallic mineral pollution in rural drinking water, which relates to the technical field of rural water purification and comprises a purification cylinder, an adsorption cylinder is mounted in the purification cylinder, a filter cylinder is arranged in the middle of the adsorption cylinder in a penetrating manner, and bearings are mounted at the bottom of the filter cylinder and the bottom surface of the purification cylinder. And the inner wall of the filter cylinder is connected with an inner connecting cylinder. Through the arrangement of the inner connecting cylinder, the outer connecting cylinder, the filtering brush and the cleaning brush, the effect of intercepting large-particle non-metallic mineral impurities by the filtering brush and the filtering holes can be increased on the basis of original filter screen filtering and activated carbon particle adsorption, so that part of large-particle impurities are uniformly attached in gaps of the filtering brush, and the filtering effect is improved. Frequent blockage caused by accumulation of all large-particle impurities on the outer side wall of the filter screen is avoided; and by arranging a sliding block, a sliding groove and a cover plate, the detachability of the cleaning brush and the filtering brush can be achieved, and large-particle impurity residues on the filtering brush can be conveniently cleaned.
Owner:MCC (YUNNAN) ENVIRONMENTAL TECH CO LTD

Air purification equipment and air purification method

The invention discloses air purification equipment and an air purification method, and belongs to the field of environmental governance. The disclosed air purification equipment comprises a main body frame, a particle adsorption part, a movable handle, a sliding part, a support and a power bin. At least one part of the main body frame is of a ventilation structure, and the particle adsorption part and the bracket are fixedly connected with the inner wall of the main body frame; the support is provided with a sliding groove, and the sliding component is arranged in the sliding groove of the support. The movable handle is movably connected with the sliding component and the support, and one end of the movable handle is arranged at the position capable of making contact with the particle adsorption component. A dust falling hole is formed in the main body frame; the arrangement position of the dust falling hole of the main body frame is matched with the falling direction of particles adsorbed by the particle adsorption part; the power bin is used for driving the sliding component to move along the sliding groove. The sliding component is used for driving the movable handle to move; the movable handle is used for knocking the particle adsorption part, so that particles adsorbed by the particle adsorption part fall into the dust falling hole. The air purifier is used for air purification.
Owner:CHINA MOBILE (XIONGAN) ICT CO LTD +3

An intelligent conditioning and purification device for biofertilizer production wastewater

The present invention relates to the field of wastewater treatment and discloses an intelligent conditioning and purification device for biofertilizer production wastewater, comprising a treatment tank body, wherein the upper end of the treatment tank body is provided with a reagent dosing port, the inner upper end of the treatment tank body is provided with a pre-filter plate, the inner lower end of the treatment tank body is provided with a top filter plate, a bottom filter plate is vertically and movably provided below the top filter plate, and the gap between the top filter plate and the bottom filter plate is used to fill activated carbon particles; the upper end of the pre-filter plate is provided with a stirring component. This intelligent conditioning and purification device for biofertilizer production wastewater integrates reagent dosing treatment, pre-filtration treatment, and activated carbon purification treatment into one device. Simultaneously, during the activated carbon particle adsorption treatment, the gap between the top filter plate and the bottom filter plate can be increased and the activated carbon particles can be dispersed, thereby increasing the use efficiency of the activated carbon particles. Furthermore, the activated carbon particles are blown by the water after bottom treatment, thereby achieving circulated wastewater treatment and improving the wastewater treatment effect.
Owner:JIANGSU LIANYUNGANG HUIFENG BIOFERTILIZER CO LTD

Rapid treatment device and method for neonicotinoid pesticide polluted water in river network area

The invention discloses a rapid treatment device and method for neonicotinoid pesticide polluted water in a river network area, and belongs to the technical field of water treatment. The device comprises a mixing unit, a settling separation unit and an adsorption medium circulating unit, the mixing unit is provided with a tangential water inlet and an adsorption medium feeding port; the settling separation unit is used for realizing rapid gravity separation of the adsorbed medium and water; and the adsorption medium circulation unit is used for medium recovery and regeneration. The invention also discloses a special core-shell structure composite particle adsorption medium and a preparation method thereof, and a rapid adsorption treatment method based on the device. Through the physical process of eddy enhanced mixing-rapid settling separation, the problems that a traditional adsorption technology is low in treatment speed, prone to blockage and low in flux are solved, and the device and the method are particularly suitable for emergency treatment of sudden and large-flow trace neonicotinoid pesticide polluted water in river network areas and have the advantages of being rapid in response, large in treatment flux, reliable in operation and low in cost.
Owner:NANJING UNIV

Novel environment-friendly wastewater heavy metal removal equipment

The utility model relates to the technical field of spine external support, and discloses novel environment-friendly wastewater heavy metal removal equipment, which comprises an equipment main body, the equipment main body comprises a removal module, the removal module is arranged on a bottom plate, the removal module comprises a removal barrel, the removal barrel is movably arranged at the top end of the bottom plate, and the removal barrel is arranged on the bottom plate. The removal barrel is used for filling and temporarily storing wastewater to be treated; the driving gear is fixedly mounted on the outer surface of the removing barrel, and the driving gear is used for directly driving the removing barrel to perform rotary centrifugation; the motor is fixedly installed on one side of the top end of the bottom plate, a driving wheel at the top end of the motor is connected with the driving gear in an engaged mode, and the motor is used for directly providing power needed by high-speed rotation and centrifugation for the driving gear; by arranging the removal module, the removal barrel adsorbs heavy metal particles in the wastewater to the surface of the barrel wall, an electrostatic adsorption net generates static electricity after being electrified, and the electrostatic adsorption net has particle adsorbability, so that the heavy metal particles are adsorbed and removed.
Owner:HEFEI SANPAO ENVIRONMENTAL PROTECTION TECH CO LTD

Coating device and method

The invention discloses a film coating device and method, and aims to solve the problems of poor film thickness uniformity, stubborn particle adsorption, insufficient surface smoothness and the like in the prior art. The device comprises a base, a magnetron sputtering generator, a guide structure, a rotating mechanism, an ultrasonic mechanism and a driving mechanism. The rotating mechanism drives the test tube to rotate around the self axis, the ultrasonic mechanism applies axial high-frequency vibration to the test tube through the amplitude-change pole, and the ultrasonic mechanism and the amplitude-change pole synergistically act; the method comprises the steps of test tube pretreatment, device debugging, test tube mounting and clamping, parameter presetting, coating operation and the like. Through cooperation of rotation and ultrasonic vibration, the circumferential and axial uniformity of a film layer is remarkably improved, particle adsorption is effectively restrained, and the surface smoothness and the film layer quality are improved.
Owner:GANTRY LAB

Soft sealing type high-pressure ball valve

The utility model provides a soft sealing type high-pressure ball valve which comprises a main body, an air inlet and an expansion pipe, an adjusting knob is arranged on the top of the main body, an air outlet is formed in the rear side of the main body, the air inlet is formed in the front side of the main body, and the expansion pipe is arranged on the front side of the air inlet. Compared with the prior art, the device has the advantages that by arranging the flow collecting cover, the rotating base, the rotating wheel and the brush, high-pressure gas entering the flow collecting cover is collected and blown to the rotating wheel, so that the rotating wheel is driven to rotate, the brush is driven to brush the inner wall of the expansion pipe, impurity particles are prevented from being adsorbed on the inner wall of the expansion pipe, and the expansion pipe is prevented from being blocked; by arranging the flow slowing plate, the flow speed of high-pressure and high-temperature gas can be reduced, the speed and flow of the gas entering the main body are slowed down, the situation that the working pressure of the main body is increased due to too large pressure, and gas leakage is caused is prevented, by arranging the first threaded connecting pipe, the first screwing hole, the second threaded connecting pipe and the second screwing hole, the expansion pipe can be detached, and maintenance and cleaning are convenient; the working efficiency is improved.
Owner:ANHUI GUOQIN INTELLIGENT TECH CO LTD

Coating agent for calciprotein particle adsorption and method for utilizing same

The purpose of the present invention is to provide a novel CPP adsorbent capable of physically fixing an electron donating group interacting with CPP to the surface of a base material. This coating agent for calciprotein particle adsorption, which is a complex of calcium phosphate and protein, is characterized by being a polymer (A) having at least one electron-donating group selected from the group consisting of an amino group, a carboxy group, a phosphate group, a phosphono group, a phosphino group, and a thiol group.
Owner:KANEKA CORP +1

Spray cleaning device and method for glass substrate

The invention belongs to the technical field of jet cleaning, and discloses a jet cleaning device and method for a glass substrate, the device comprises a spray rod and a nozzle, the spray rod is fixedly installed at the upper end of the glass substrate, a plurality of connecting holes are formed in the spray rod, the spray rod is fixedly connected with the nozzle, and the included angle between the spray rod and the glass substrate is 1030 degrees; the problem of fragmentation caused by excessive impact on a glass substrate is avoided while the cleaning strength is guaranteed, a flow guide cavity is formed in the nozzle, the ratio of the curvature radius of the flow guide cavity to the diameter of an outlet is larger than or equal to 1.1 and smaller than or equal to 1.2, the flowing state of a cleaning medium in the nozzle is effectively adjusted, and then the spraying effect is optimized; the surface roughness of the nozzle is 0.8 mu m, attachment points of particles on the surface of the nozzle are reduced, the contact angle is 100 degrees, the adhesive force of liquid on the surface of the nozzle is reduced, and the particle adsorption probability can be remarkably reduced through combination of the two.
Owner:IRICO DISPLAY DEVICES CO LTD

Coked particle adsorption device for flue gas treatment

The utility model discloses a scorched particle adsorption device for flue gas treatment, which relates to the technical field of flue gas treatment and comprises a mounting rack, a first dust chamber is mounted in the mounting rack, a second dust chamber covers the first dust chamber, the side edge of the second dust chamber is connected with a gas inlet pipe, and the gas inlet pipe is connected with a gas outlet pipe. And the top end of the first dust removal chamber is connected with a sliding ring. By arranging the sliding ring and the positioning rod, in the using process, the direction of the air inlet pipe can be adjusted in time in the installation process through mutual matching of the sliding ring and the positioning rod so that the air inlet pipe can be smoothly connected with a conveying pipeline, workers do not need to lift the whole device, and therefore the installation difficulty can be effectively reduced, and the installation efficiency is improved. And the covering cover and the rubber ring are arranged, so that in the using process of the device, through mutual matching of the rubber ring and the covering cover, a gap in the connecting process of the first dust removal chamber and the second dust removal chamber can be reduced, and the sealing performance of the device in the using process can be effectively guaranteed.
Owner:TONGZHENG ENVIRONMENT PROTECTION GRP CO LTD

A system and method for measuring single particle adsorption isotherms

The application discloses a kind of single-particle adsorption isotherm measurement system and method, the system includes: dark field optical imaging system, for the dark field image of sample particle is collected;Micro gas flow cell, for accommodating sample particle and controlling its atmosphere environment, the micro gas flow cell is equipped with gas inlet, gas outlet and optical transparent window;The optical transparent window is used for the light path of the dark field optical imaging system passes through;Temperature control system, for controlling the temperature of sample particle;Gas path control system, for adjusting the gas type and partial pressure that pass into the micro gas flow cell;Signal acquisition and processing system are connected with the dark field optical imaging system, for collecting dark field image and calculating the scattering light intensity change of the sample particle, to further construct adsorption isotherm.The application realizes the accurate characterization of molecular adsorption amount by real-time monitoring the optical scattering intensity change of single particle in adsorption process.
Owner:NANJING UNIV

Adsorption type cold trap

The utility model relates to an adsorption type cold trap which comprises a shell, a cooling inner container and a first net plate, an air inlet is formed in the lower portion of the shell, an air outlet is formed in the upper portion of the shell, the cooling inner container is located in the shell and fixedly connected with the shell, a cooling cavity is formed in the cooling inner container and communicated with a liquid inlet and a liquid outlet respectively, and the first net plate is arranged in the cooling inner container. The first screen plate is located in the shell and fixed to the shell in position, and the first screen plate is located above the cooling inner container. Waste gas is subjected to low-temperature adsorption and adsorption particle adsorption twice, so that the dust content in the waste gas is greatly reduced, dust deposited on the inner wall of a pipeline is reduced, and the pipeline between a dry pump and waste gas treatment equipment is prevented from being blocked; the detection medicament in the net cylinder is observed through the transparent lens to judge whether the adsorption particles need to be replaced, and the operation is simple and convenient; and the mounting cylinder sleeves the outer side of the cooling liner, and the mounting cylinder can be integrally taken out of the shell to be cleaned, so that the cleaning is more convenient, and meanwhile, the cleaning effect is improved.
Owner:上海高笙集成电路设备有限公司

Braking particle collector, automobile braking system and vehicle

The present invention relates to a brake particle trap, an automobile braking system, and a vehicle. The brake particle trap comprises: a cavity with a built-in magnetic field, a first particle adsorption layer, a second particle adsorption layer, a first magnetic field generating device, and a second magnetic field generating device. The cavity is configured to provide a guide path for the movement of brake particles; the first and second magnetic field generating devices are disposed on either side of the cavity to provide magnetic fields for the cavity; the first and second particle adsorption layers are configured to adsorb brake particles in the cavity; the first particle adsorption layer is disposed between the first magnetic field generating device and the cavity; and the second particle adsorption layer is disposed between the second magnetic field generating device and the cavity. Compared with existing technologies, the present invention has the advantages of reduced environmental pollution, improved particle capture efficiency, reduced brake load, simple structure, and ease of installation.
Owner:TONGJI UNIV

Sponge spraying machine with flue gas purification mechanism

The invention relates to the field of sponge spraying machines, and discloses a sponge spraying machine with a flue gas purification mechanism, the sponge spraying machine comprises a sponge spraying machine body, sponge spraying equipment is arranged in the sponge spraying machine body, a flue gas purification assembly is installed at the top end of the sponge spraying machine body, and the flue gas purification assembly comprises a treatment cylinder fixedly installed at the top end of the sponge spraying machine body; a gas inlet pipe is mounted on one side of the treatment cylinder, one end of the gas inlet pipe is in bolted connection with a gas inlet mounting pipe, a gas inlet conical cylinder is mounted at the bottom end of the gas inlet mounting pipe and located on the inner side of the sponge spraying machine, a gas suction fan is mounted on the gas inlet mounting pipe, an exhaust pipe is mounted at the top end of the treatment cylinder, and one end of the exhaust pipe is connected with a flue gas secondary treatment box; according to the flue gas treatment device, water is stored in the treatment barrel, and meanwhile, water is sprayed above the water surface, so that flue gas is subjected to primary paint mist particle adsorption in the water, and then is subjected to secondary paint mist particle adsorption by the sprayed water above the water surface, and the flue gas treatment effect is improved.
Owner:DONGGUAN CHUANPEI MEDICAL TECHNOLOGY CO LTD

Particle removal system and method for controlling particle removal system

A particle removal system (100) comprises a particle clamping jig (10) that, by having static electricity accumulated thereon, clamps particles by the accumulated static electricity. The particle removal system (100) also comprises a charging device (20), a robot (150), and a control unit (160). The control unit (160) controls operation of the robot (150) to cause static electricity to accumulate on the particle clamping jig (10) by means of the charging device (20).
Owner:KAWASAKI JUKOGYO KK +1

Coupled molecular dynamics first-principles calculation method for surface particle adsorption on gas cooled reactor cladding

The application discloses a kind of coupling molecular dynamics first principle's gas cooled reactor cladding surface particle adsorption calculation method, steps are as follows: (1) based on computational fluid dynamics and particle discrete phase model establishes numerical simulation framework, including cladding, break, flow channel modeling, grid drawing, boundary condition setting;(2) according to the first principle of molecular dynamics, the binding surface energy of fission product molecules released into the gas gap and the cladding material molecular base is calculated;(3) establish the particle deposition model including particle's own attribute, effective modulus, relaxation time and surface energy;(4) the binding surface energy is implanted into the particle deposition model, and the particle deposition model is used as the wall boundary, and the gas-solid two-way coupling calculation of particle deposition is carried out.The method solves the problem that traditional macroscopic model depends on empirical parameters, realizes high-precision simulation based on physical mechanism, reveals the mechanism of micro-interface properties on macroscopic deposition behavior, and predicts complex deposition morphology.
Owner:XI AN JIAOTONG UNIV

Composite powder preparation system for laterite-nickel ore oxygen-enriched side-blown smelting and blowing method

The invention discloses a composite powder preparation system and injection method for laterite-nickel ore oxygen-enriched side-blown smelting, and the method comprises the following steps: S1, firstly preparing pulverized coal with the particle size of less than 74 microns, then mixing and contacting with sulfur with the particle size of 10 mm, and forming a plurality of effective contact points attached with micron-sized pulverized coal on the surface of the sulfur, thereby reducing the contact resistance and constructing a charge conduction path; therefore, surface static charges generated in the sulfur grinding process are led out in time, and static accumulation of sulfur is weakened. Meanwhile, in the process of the step 2, the particle size of the sulfur is ground to be smaller than 74 microns, and the particle size of the mixed powder meeting the requirements of the subsequent injection process is prepared. Therefore, the problems that in the closed pneumatic conveying process, sulfur fine powder is prone to particle adsorption and agglomeration, and materials are blocked in a pipeline are solved, and the safety accident that electric spark discharge is prone to occurring between cloth bags, and the sulfur powder is ignited is avoided. Through two-step grinding of the pulverized coal and the sulfur, the contact resistance is reduced through different particle size mixing, and a remarkable effect is brought by a process of constructing a charge conduction path.
Owner:浙江嘉伟新能源集团有限公司

Long-acting stable multi-solid-waste composite proppant and preparation method thereof

The invention belongs to the technical field of fracturing propping agent materials, and discloses a long-acting stable multi-solid-waste composite propping agent and a preparation method thereof. According to the proppant, steel slag, fly ash and granulated blast-furnace slag are used as main raw materials, a mullite-pyroxene composite mineral phase framework is formed by sintering at 1120-1260 DEG C by controlling the adding molar ratio of the raw materials, and the long-term stability of high density and non-collapsing structure under high temperature and high pressure is achieved. Fluorosilane and polyphosphinocarboxylic acid are further adopted for surface synergistic grafting, a composite film layer with hydrophobic and anti-pollution functions is constructed, stratum particle adsorption and inorganic salt scaling are remarkably reduced, and long-term smoothness of a crack flow guide channel is maintained. Results show that the proppant has excellent mechanical strength and service stability, the long-term flow conductivity retention rate in a high-temperature and high-salinity fracturing fluid environment exceeds 90%, the structural integrity is good, the compressive property reaches 69 MPa or above, and the proppant is suitable for long-term fracturing support requirements of complex reservoirs.
Owner:GUIYANG XINRUI MATERIAL TECH CO LTD

Flue gas desulfurization device

The utility model provides a flue gas desulfurization device, and relates to the technical field of flue gas treatment.The flue gas desulfurization device comprises a shell, a partition plate is fixedly arranged in the shell and divides the interior of the shell into an activated carbon adsorption chamber and a flue gas chamber from top to bottom, a plurality of through holes are evenly formed in the partition plate, and a first filter screen is arranged at the top of the partition plate; a smoke inlet pipe communicated with the smoke chamber is arranged on one side of the shell, a stirring assembly is arranged in the activated carbon adsorption chamber, a driving motor used for driving the stirring assembly to rotate is fixedly arranged at the top of the shell, and a filtering assembly is arranged in the smoke chamber. After being filtered by the assembly, the activated carbon particles sequentially upwards penetrate through the through holes of the partition plate and the first filter screen and uniformly enter the activated carbon adsorption chamber, the driving motor drives the stirring assembly to stir the activated carbon particles in the activated carbon adsorption chamber, the contact area of the activated carbon particles and the flue gas is increased, and the activated carbon particles and the boiler flue gas are fully mixed; the activated carbon particle adsorption efficiency is effectively improved, and the flue gas treatment time is shortened.
Owner:SHAOGUAN YUEHUA ELECTRIC POWER CO LTD

Tire wear particulate matter trapping device of motor vehicle

The invention provides a tire wear particulate matter collecting device of a motor vehicle, which comprises a rectifying apron board connected to a vehicle body, and the rectifying apron board at least comprises a first apron board positioned on the outer side of a rear wheel; the first trapping shell comprises a first shell body which extends in the length direction of the vehicle body and is relatively closed, the two sides of the first shell body are each provided with an air inlet cavity channel which protrudes outwards and communicates with the area between the two adjacent rear wheels at the corresponding position, and the rear end of the first shell body is provided with a first exhaust port. A first particle adsorption mechanism is arranged on the first shell body close to the first exhaust port; the second trapping shell comprises a relatively-closed second shell body extending in the length direction of the vehicle body, the front side of the second shell body is provided with an air inlet communicating to the rear area of the rear wheel at the rearmost end, the rear end of the second shell body is provided with a second exhaust port, and a second particle adsorption mechanism is arranged at the position, close to the second exhaust port, of the second shell body. According to the trapping device provided by the invention, the trapping effect on the tire wear particles is good.
Owner:NINGBO UNIV

Efficient industrial flue gas filtering device based on melt-blown non-woven fabric

The utility model discloses an efficient industrial flue gas filtering device based on melt-blown non-woven fabric, which comprises a box body, one side of the box body is fixedly connected with a gas inlet pipe, the other side of the box body is fixedly connected with an exhaust pipe, a spraying assembly is arranged in the box body, a filtering sieve plate is arranged in the box body, and a cleaning assembly is arranged on the filtering sieve plate. Collecting assemblies are arranged on the two sides of the box body, a movable assembly is arranged in the box body, and an adsorption plate is arranged on the movable assembly. When a part of flue gas passes through the filter sieve plate, the device performs stage treatment on the flue gas through the plurality of adsorption plates, the activated carbon adsorption plate is used for adsorbing gas-phase pollutants, the fine particle adsorption plate is used for adsorbing smaller particles and conventional organic matters in airflow, and the oxidation adsorption plate is used for converting some gaseous toxic substances and volatile organic compounds. The smoke is filtered in a classified mode, the filtering efficiency and the dust holding capacity are improved, the adsorption plate can be conveniently pulled out and replaced through the movable assembly, and a worker can conveniently install, maintain and replace the filter material.
Owner:HUBEI DONGHAIXIANG MELTBLOWN NONWOVEN CLOTH CO LTD

Super-emission superfine fiber conductive treatment filter material

The utility model relates to the technical field of filter materials, and discloses a super-emission superfine fiber conductive treatment filter material which comprises a non-woven fabric filter layer, a filter assembly is arranged at the bottom of the non-woven fabric filter layer and comprises a first supporting frame, a first filter layer, a second filter layer and first adhesive are arranged on the inner wall of the first supporting frame, and the first adhesive is arranged on the inner wall of the first supporting frame. A conductive assembly is arranged at the bottom of the filtering assembly and comprises a second supporting frame. When the medium passes through the first filter layer, the first filter layer adsorbs coarse particles in the medium, so that the medium is filtered for the first time, the medium reaches the second filter layer through the first adhesive, and fine particles in the medium are adsorbed through the second filter layer; and the medium is filtered for the third time through the first conductive layer, so that the medium reaches the interior of the filter layer at the tail end through the conductive assembly.
Owner:YINGKOU CHUANGSHIJI FILTER MATERIALS