69results about How to "Fully disturbed" patented technology

The invention discloses liquid food additive blending and uniform mixing equipment. The liquid food additive blending and uniform mixing equipment comprises a uniform mixing casing, an elevating connection board is arranged right below a fixed mounting seat and in the uniform mixing casing, an electric telescoping rod is respectively at left and right sides between the elevating connection board and the fixed mounting, a vertical guiding rod mutually adapted to a vertical guiding sleeve in a sliding mode is arranged on the fixed mounting seat, several rotation batch mixing plates are arranged at the central section of a rod body of the rotation mixing rod, a buffer discharge case is communicated with the bottom end of a material discharge channel, several material discharge through holes are arranged on the bottom side wall of the buffer discharge case, and a water spray coil pipe is arranged on the inside wall at the central section of a body of the uniform mixing casing. The processing scope is wider, the blending effect is comprehensively increased, the material splashing phenomenon due to large flow velocity can be avoided, the polluted blades after long-time usage can be flushed, and the work difficulty is effectively reduced.

The invention provides a heating furnace pulse control system and method and belongs to the technical field of metallurgy. The upper section of the system conducts heat supply through flat flame burners, and the lower section of the system conducts heat supply through NOx burners. The three burners are arranged at the south end of the lower section, and the three burners are arranged at the northend of the lower section. The heating furnace pulse control system integrates the double-cross amplitude limit technology and the pulse control technology. Every two crossed burners of the six burnersof the lower section serve as a group, and the three groups of the burners work in sequence. According to the heating furnace pulse control system, the pulse combustion technology is adopted; as allthe burners work under high-load conditions, extrusive flames are long, and the thermal radiation capacity is high; thus, steel blanks can be heated uniformly, and the burners can be protected againstbackfire; moreover, through periodic switching of the pulse burners, the furnace atmosphere can be blended sufficiently, the gas thermal convection capability is enhanced at high radiation, and the heating uniformity of the plate blanks is further improved.

The invention relates to the field of ship flue gas denitrification equipment, in particular to a urea powerful mixing device for an SCR system of a small and medium-sized ship. The urea powerful mixing device for the SCR system of the small and medium-sized ship comprises a tube body, a porous plate, a urea nozzle and a mixing device, wherein the porous plate, the urea nozzle and the mixing device are arranged in the tube body from bottom to top; a flow rectifying device is the porous plate where a plurality of round holes are distributed, and a flow disturbing device is the mixing device; and the device has the beneficial effects that the flow rectifying device (porous plate) is arranged at the upstream position of the urea nozzle, the flow disturbing device is arranged at the downstream position of the urea nozzle, and due to the structure, smoke and sprayed urea mist can be more sufficiently mixed in the limited space, the urea nozzle can absorb more smoke gas waste heat in a short time so as to improve the decomposition speed, and therefore it can be ensured that the concentration ratio of NH3 / NOX meets the reaction requirement when mixed smoke gas enters an SCR reactor inlet.

Disclosed are aluminate red phosphor activated by europium ions Eu3+ and a preparation method of the aluminate red phosphor. The chemical formula of the phosphor is Zn3-3xEu3xMgAl22O37, wherein x is amole ratio of Eu3+ doped Zn2+ sites and is greater than or equal to 0.001 and smaller than or equal to 0.1. The prepared phosphor matrix is aluminate, has high rigidity of crystal lattices and high thermal stability, and is suitable for preparing illumination devices with high power; in the Zn3MgAl22O37 crystal lattices, Eu3+ is doped to the positions of Zn2+ ions with a small radius, and the crystal lattices have various divalent cation positions, the crystallographic environment of the Eu3+ ions is fully disturbed, and purer red light emitting is achieved; the phosphor has small and evenly-distributed particles, good dispersibility and crystallinity and high light emitting efficiency; during preparation, a chemical sol-gel method is adopted, calcining is carried out after nitric acid dissolution, the process is simple and easy to implement, the raw material and preparation cost is low, the powder crystallinity is good, and no pollution is caused to the environment.

A liquid cooing plate provided with channels comprises a cover plate, a second body and a first body which are fixedly connected in sequence from top to bottom, wherein the first body is platy, and aplurality of slots are formed in parallel at equal interval in the upper surface of the first body; the tops of the slots are lower than the upper surface of the first body in the horizontal direction; a slot panel heat pipe is formed between the upper surface of the first body in the horizontal direction and the slots and comprises the slots and a steam cavity; the second body is platy, and the lower surface of the second body is fixedly connected with the edge of the upper surface of the first body; a plurality of parallel channels are formed in the upper surface of the second body; a waterinlet channel is formed in one ends of the channels and perpendicular to the channels, a water outlet channel is formed in the other ends of the channels and perpendicular to the channels, and the water inlet channel and the water outlet channel are communicated with the channels; the cover plate is fixedly arranged on the upper surface of the second body and totally covers the second body. By designing two layers of heat conducting bodies, heat conduction efficiency and heat dissipation capacity are improved greatly.

The invention belongs to water treatment equipment, and particularly relates to a spiral flocculator which comprises a support. At least two spiral plates with opposite turning directions are longitudinally arranged on the support at intervals, the upper end and the lower end of each spiral plate are rotationally assembled on the support, and strip-shaped blades are radially fixed onto outer edges of the spiral plates. The spiral flocculator is mounted between two adjacent partition boards in a folded plate type flocculation reaction tank when applied to the folded plate type flocculation reaction tank. The spiral flocculator solves problems of large application limitation, poor flocculation effect and large occupied area of an existing reaction tank in the prior art, and has the advantages that a disturbance effect to water flow is good, the occupied area of the reaction tank is small, installation is simple, energy is saved, and the like.

The invention discloses a down-explosion and up-extrusion outburst elimination and dust falling method for coal road tunneling in a gas outburst coal seam. The resonance effect of explosive columns which explode simultaneously in a plurality of horizontal base plate rock drill holes is fully used to enable the coal seam and a rock stratum at the upper side to generate a large amount of fractures, sufficient disturbance and loosening are conducted on the coal seam in the area, the gas extraction efficiency of an extraction drill hole is improved, and accordingly the outburst elimination is achieved; after a large quantity of gas is extracted, the gas pressure is decreased greatly, the resistance of injecting water into the coal seam can greatly be decreased, at this time, a large quantity of water is injected through a water injection pipeline, the water can permeate downwards under the dead weight function, not only is a coal body softened, but also the dust concentration in the tunneling process is reduced, and the working environment is improved. The method is simple in operating and easy to achieve.

The invention relates to a method for efficiently preparing a large-volume semi-solid thick liquid through a compounding process. The method comprises the following steps that a large-volume alloy melt in a container is stirred, meanwhile, in order to enable the alloy melt of the edge part to be sufficiently stirred to avoid adhering materials and quickly cooling the melt, the melt disturbance andthe particles of the same alloy composition are added in the alloy melt on the outer wall of the container, so that the purpose of rapidly and uniformly melting a component field and a temperature field and rapidly cooling is achieved. According to the compounding process, when the melt falls to a preset semi-solid temperature, the treating is stopped, the large-volume semi-solid thick liquid with a solid phase rate of 20%-60% is obtained, and the thick liquid is sent to a forming device for rheoforming. The method solves the problem that when the large-volume semi-solid thick liquid is prepared by a single process, the structure is not uniform, the edge of a crucible is adhered due to insufficiently stirring or disturbing, and the cooling of the melt is slow; and the process is strong incontrollability and good in industrialization prospect, and is particularly suitable for preparing the large-volume semi-solid thick liquid with the weight of more than 10 kg.

The invention provides a composite rotor in a heat exchange tube, which is composed of a main rotor and a planet rotor, wherein the main rotor comprises a main rotor hollow shaft, a drive rod, a planet shaft and a tail rod, the drive rod and the tail rod are composed of a plurality of short blades respectively, an angle is formed between the short blades and an axis of the main rotor hollow shaft, the planet shaft is composed of a planet rotor hollow shaft and blades, a certain angle is formed between the blades of the planet rotor and a central line of the planet rotor hollow shaft, the planet rotor hollow shaft is sleeved on the planet shaft of the main rotor, and then the tail rod is connected to the end portions of the main rotor hollow shaft and the planet shaft. According to the composite rotor in the heat exchange tube, the drive rod is pushed by a fluid to provide a driving force for the main rotor to rotate, simultaneously with a rotation of the main rotor, the planet rotor obtains a rotation angular velocity which is around the center of the heat exchange tube, so that a rotary speed of the rotor can be reduced, and the range and degree of a mixing and a disturbance of the fluid are enhanced; and the planet rotor can obtain an angular velocity rotating around the planet shaft, and the disturbance of the fluid in an area close to tube wall is further increased.

The invention relates to the technical field of glass fiber processing, and discloses a glass fiber melting and infiltrating device, which comprises an infiltration box, a box plate is mounted at thetop end of the infiltration box, L-shaped frames are mounted on the two sides of the upper end of the box plate, telescopic columns are slidably arranged in the middles of the upper ends of the L-shaped frames, conveying frames are connected to the upper ends of the telescopic columns, conveying wheels are rotatably arranged in the middles of the upper ends of the conveying frames, the outer sleeve of the telescopic column between the conveying frame and the L-frame is provided with a telescopic spring, the two sides of the interior of the infiltration box are provided with traction wheels correspondingly, glass fibers are wound between the traction wheels, a disturbance box is installed in the middle of the lower end of the box plate, the interior of the disturbance box makes contact witha rotating block and the disturbance block through an oblique section, the rotating block is located on the upper side of the disturbance block, and a guide groove is formed in the middle of the right side of the disturbance block and internally provided with a guide block. According to the device, glass fibers and a soaking agent can be in full contact for soaking, and the soaking effect of theglass fibers is further improved under the cooperation of the lifting gear and the lifting rack.

The invention discloses a double-barrel sand screening device, and relates to the technical field of sand screening. The double-barrel sand screening device includes a dust-proof shell, the lower partof the dust-proof shell is fixedly connected with a bracket assembly; the inner wall of the dust-proof shell is fixedly connected with two supporting rings; the inner walls of the two supporting rings are rotatably connected with an outer screen barrel through bearings; the inner wall of the outer screen barrel is correspondingly and fixedly connected with a first connection ring and a second connection ring; a self-cleaning assembly is fixedly connected between the inner surfaces of the two supporting rings; and an inner screen barrel is arranged in the outer screen barrel. According to thedouble-barrel sand screening device, through the design of the inner screen barrel and the outer barrel, primary screening of a traditional barrel type screening device is changed into secondary screening, so that a variety of sand materials with different particle sizes are screened out through secondary screening, and through the design of first spiral flow control blades and second spiral flowcontrol blades, the screening time of the materials in the screen barrels can be controlled by controlling the flow rate of the materials.

The invention relates to the technical field of mechanical engineering, in particular to an unloading device. The unloading device comprises a power mechanism, a transmission mechanism and an executing mechanism which are connected from top to bottom in sequence; the executing mechanism comprises a shaft assembly and a rotary disc assembly which are connected from top to bottom in sequence; and the rotary disc assembly comprises an upper-layer auxiliary fence, a middle-layer main disturbance disc and a lower-layer material picking part which are connected from top to bottom in sequence. The unloading device provided by the invention is convenient to control, the picking reliability and unloading stability of a spherical material are ensured, the requirements of the unloading device for long service life and reliable operation under the underloading low-speed working condition can be met, and maintaining is convenient and fast.

The invention discloses Eu<3+> ion activated vanadate-phosphate-niobate red fluorescent powder, and a preparation method and application thereof. The chemical general formula of the fluorescent powderis Ca<1-x>Eu<x>Nb<2-x>Ti<x>V<2>P<4>O<21>, wherein x is the molar ratio of Eu<3+> ions and tetravalent Ti<4+> ions to respectively substituted Ca<2+> and Nb<5+>, and x is greater than or equal to 0.001 and less than or equal to 0.3. The fluorescent powder is synthesized by adopting a solid-phase reaction method, and is synthesized in an air atmosphere by a plurality of times, so that operation isconvenient, the requirement for equipment is low, the preparation process saves energy and is environmentally friendly, and the obtained fluorescent powder particles are uniform in particle size and good in thermal stability. The fluorescent powder provided by the invention has strong absorption capability on near ultraviolet and blue light wave bands, can emit red light with a wavelength of 615 nm after being excited, and is high in luminescence efficiency, so that the Eu<3+> ion activated vanadate-phosphate-niobate red fluorescent powder can be well matched with near-ultraviolet and blue-light semiconductor light-emitting diode (LED) chips, and can be matched with the LED chips to prepare white light LED lighting assemblies.

The invention discloses Eu<3+> doped fluorine niobium tantalite fluorescent powder as well as synthesis and an application thereof. The fluorescent powder has a chemical formula of Ca(3-2x)Eu2xNb2Ta(2-2x)Ti2xO12F2, wherein x denotes the mole number of Eu<3+> ions and Ti<4+> ions substituting Ca<2+> ions and Ta<5+>, and x is larger than or equal to 0.003 and smaller than or equal to 0.15. Firstly,a precursor Ca(2-2x)Eu2xNb2Ta(2-2x)Ti2xO12 (x is larger than or equal to 0.003 and smaller than or equal to 0.15) free of calcium fluoride is prepared with a solid phase synthesis method; calcium fluoride and ammonium fluoride are added to a precursor, mixed sufficiently and pressed into a block, synthesis and calcination are performed by use of a solid phase, and the Eu<3+> doped fluorine niobiumtantalite fluorescent powder is prepared. The provided fluorescent powder can well absorb ultraviolet light and emit red light with very pure chromaticity. The fluorescent powder can be well matchedwith a near ultraviolet semiconductor LED chip and is potential red luminescent powder for preparation of white light LED illumination devices.

The invention relates to the technical field of hot dry rock thermal energy development, in particular to a system for collecting thermal energy of hot dry rock with a U-shaped well. The overall system for collecting the thermal energy of the hot dry rock with the U-shaped well is in a U-shaped channel and comprises an injection sleeve and heat preservation system of the injection sleeve, a rock heat utilization cascade heating system, a long-lead cyclone type self-flushing underground heat exchange system and a collecting well sleeve and heat preservation system of the collecting well sleeve.The rock heat utilization cascade heating system and the long-lead cyclone type self-flushing underground heat exchange system are each formed in the manner that a plurality of groups of cyclone typeself-flushing underground heat exchangers are connected. Each cyclone self-flushing underground heat exchanger is a spiral grooved tube. The system for collecting the thermal energy of the hot dry rock with the U-shaped well can be widely applied to enhancement type geothermal systems for hot dry rock thermal energy development and is low in cost, high in heat exchange efficiency and simple in system heat exchange cycle channel.

The invention aims at providing a pinfin drivepipe type reinforced heat transfer element, which comprises two two-way adapter connectors, a groove drivepipe, a pinfin pipe; the two two-way adapter connectors are respectively connected with the two ends of the pinfin pipe; the pinfin pipe is provided with an inner channel; the parts of the two-way adapter connectors connected with the pinfin pipe are inserted in the inner channel of the pinfin pipe; the groove drivepipe is externally sleeved on the pinfin pipe; each of the two-way adapter connectors comprises a first channel and a second channel; the first channel is communicated with a ring gap formed by the pinfin pipe and the groove drivepipe; and the second channel is communicated with the inner channel of the pinfin pipe. The pinfin drivepipe type reinforced heat transfer element provided by the invention has the advantages of good heat transfer property, reasonable structure, no bypass leakage flow and long service life and being safe and reliable.

The invention relates to a machine-made sand screening and treatment integrated device for construction. The machine-made sand screening and treatment integrated device comprises a first screening component, a mud water precipitation component, a hammering component, a grinding component and a second screening component. By specifically arranging all the components, efficient separation of stone blocks, stone particles and floating soil is achieved firstly, efficient fine crushing of the stone blocks in the same size is achieved in the mode that the separated stone blocks are hammered and ground, the separated stone particles and floating soil form gravel and mud in the mode of back flushing of a water body to be separated, and thus uniform machine-made sand particles are finely produced. The water body is reused after the mud is precipitated, and thus the utilization rate of the water body is greatly increased.

The invention relates to vanadate red phosphor activated by europium ions Eu3+, a preparation method and application, and belongs to the technical field of inorganic light emitting materials. The chemical formula of the phosphor is CaBiLa1-xEuxV2O9, wherein x is a mole ratio of doped Eu3+ to substituted lanthanum ions La3+ and is greater than or equal to 0.001 and smaller than or equal to 0.15. The prepared phosphor is synthesized by a sol-gel method, the preparation method is simple and environmentally friendly, the raw material and the preparation cost is low, the powder purity is high, thecrystallinity is good, the performance is stable, the phosphor has a wide excitation band in a near-ultraviolet region, and the emission wavelength of a near-ultraviolet LED chip is well matched; under the excitation of the near-ultraviolet wavelength, an obtained red light spectrum is a sharp jump emission peak at 613 nm and has very pure chromaticity; the light emitting efficiency is high, and the stability is high.

The invention relates to the technical field of grinding equipment, in particular to a using method of grinding equipment for automobile casting production. The using method of the grinding equipment for automobile casting production comprises the following steps that S1, the grinding equipment for automobile casting production is taken; S2, a spraying dust removal module is connected with an air outlet pipe through cooperation of a hose and a draught fan; S3, the spraying dust removal module is connected with a water storage device and a water supply device; S4, a motor, the water supply device and the draught fan are started, a driving shaft is used for synchronously driving the spraying dust removal module to operate, and then grinding is started; and S5, the motor and the draught fan are turned off after a workpiece is ground, the water supply device injects water in the spraying dust removal module to wash an internal mechanism of the spraying module, and finally the water in the water storage device is poured into a sewage treatment device to be treated. According to the using method of the grinding equipment for automobile casting production, through the arrangement of the spraying dust removal module in transmission connection with the driving shaft, a large amount of dust generated in the grinding process can be collected and treated, and therefore the quality of air in the workshop is improved.

The invention provides a baffling and converting type grid flocculation reaction device. The baffling and converting type grid flocculation reaction device comprises an adjustable composite frame and multiple layers of baffling and converting type grids, wherein the adjustable frame is made of stainless steel; the spacing of the adjustable frame is adjusted for instalment of the multiple layers of baffling and converting type grids; each baffling and converting type grid is a plane grid with many pores but the pore diameters of the grid planes in the multiple layers of baffling and converting type grids in the baffling and converting type grid flocculation reaction device are different; the pore diameters of the middle part and the marginal area of each grid are different; in particular, the pore diameters of the two adjacent layers of grid planes are different in value and distribution but the pore diameters of the two layers of grid planes spaced by a grid are the same in value and distribution. The water flows passing through the baffling and converting type grid flocculation reaction device are different and are convenient to change.

The invention discloses a substitutive QT400 aluminum alloy flywheel brake caliper shell material. The substitutive QT400 aluminum alloy flywheel brake caliper shell material is characterized in that the material comprises, by weight, no more than 2% of Mn, 0.05%-0.5% of Cd, 4.2%-8.0% of Cu, 0.5%-2.0% of Si and the balance Al; the percentage of Cu is not smaller than 0.8*Mn+4.05%; and the total amount of Lewis acid-base pairs is 1%*10<-4> to 2%, so that the mean grain size of alloy is smaller than 120 micrometers.

The invention relates to a hood-type annealing furnace device, which is composed of 1 to 20 sets of hood-type furnaces, a heat conduction oil pump, a steam generator, a steam turbine and an electric generator, wherein each hood-type furnace comprises a coil base, a heating hood, a cooling hood and an inner hood, a support plate is arranged at the upper part of each coil base, and a diversion draught fan is arranged at the bottom of each coil base; a coiled tube or a jacket is arranged on the cooling hood, and a heat conduction oil outlet and a heat conduction oil inlet are arranged in the coiled tube or the jacket respectively; the heat conduction oil outlet of the coiled tube or the jacket is connected to the inlet of the heat conduction oil pump via the steam generator, and the outlet of the heat conduction oil pump is connected to the heat conduction oil outlet of the coiled tube or the jacket; the steam outlet of the steam generator is connected to the steam inlet of the steam turbine, and the steam turbine is coaxially connected with the electric generator. Due to arrangement of the coiled tube or the jacket in the cooling hood, the heat released during cooling process of the annealing furnace is taken out by circulation of the heat conduction oil in the coiled tube or the jacket and is used for electricity generation, so that the heat during heat treatment process of metal materials can be fully utilized, the energy consumption is lowered, and the thermal efficiency of heat treatment of metals and the economic benefit of enterprises are improved.

The invention provides an incoming water distribution system of a leachate anaerobic reactor. The incoming water distribution system comprises a water-in main pipe, a primary water distributor and at least four secondary water distributors, wherein the secondary water distributors are uniformly distributed around the primary water distributor; the primary water distributor comprises a hollow first hemisphere body, a first water inlet and first water outlets numerically consistent with and in one-to-one correspondence to the secondary water distributors; the secondary water distributor comprises a hollow second hemisphere body, a second water inlet and multiple second water outlets; the second water outlets are uniformly distributed at the bottom end of the spherical surface of the second hemisphere body; the second water inlet is connected with corresponding first water outlets; and the middle part of the bottom surface of the first hemisphere body and the middle part of the bottom surface of the second hemisphere body separately hunch up to form a curved surface. According to the system provided by the invention, frequent disturbance of the incoming water in the flowing process is guaranteed so as to avoid the turbulence phenomenon and intensify the turbulent condition of the incoming water, and the impurities do not deposit in the water-in process while scale is not easily formed on the pipeline.

The invention discloses a Eu 3+ Ion-activated vanadium phosphoniobate red phosphor, preparation method and application thereof, its general chemical formula is Ca 1‑x Eu x Nb 2‑x Ti x V 2 P 4 o 21 , x is trivalent Eu 3+ ions and tetravalent Ti 4+ ions respectively replace Ca 2+ and Nb 5+ The number of moles of x is in the range of 0.001≤x≤0.3. The invention is synthesized by a solid-phase reaction method, and is synthesized by multiple calcining in an air atmosphere. The operation is convenient and the requirements for equipment are low. The preparation process is energy-saving and environment-friendly. The fluorescent powder provided by the present invention has a strong absorption capacity for near-ultraviolet and blue light bands, can emit red light with a wavelength of 615 nanometers after excitation, and has high luminous efficiency. Therefore, the Eu 3+ The ion-activated vanadium phosphoniobate phosphor can be well matched with near-ultraviolet and blue light semiconductor LED chips, and can be used to prepare white light LED lighting devices in combination with it.

The invention discloses a mold manufacturing device and method with an environment-friendly cooling function. Aiming at the problems of poor cooling effect and long cooling time in the existing mold cooling device, the following scheme is proposed, including the bottom plate outlet pipe and the upper mold The top outer wall of the bottom plate is fixed with a cooling box by bolts, the top outer wall of the cooling box is fixed with a motor, the top outer wall of the motor is fixed with a transmission wheel by screws, and the outer wall of the transmission wheel is sleeved with A belt, a first vertical shaft and a second vertical shaft are sheathed on both inner walls of the belt. The invention drives the belt, the three-point fan blade and the five-point fan blade to rotate in different directions through the rotation of the motor provided, and the generated wind force is different in size, so that the air on the inner wall of the cooling box is quickly and fully disturbed, so that the cooling elbow and the low-temperature water The full contact of the fog improves the cooling effect of the cooling elbow and effectively shortens the cooling time.

The invention discloses a premixed flow state solidified soil foundation treatment construction method. The premixed flow state solidified soil foundation treatment construction method comprises the following steps of S1, plane paying-off being conducted in a foundation treatment area; S2, cleaning a natural foundation; S3, erecting a template and a working platform; S4, cleaning a pouring area and protecting a finished product; S5, pouring, wherein in the pouring process, homogenizing auxiliary equipment is used for homogenizing; and S6, maintenance being conducted. The homogenizing auxiliary equipment comprises a chassis and a support arm, an end part of the support arm is provided with a sun gear, a plurality of planetary gears and a gear ring, and the planetary gears are simultaneously engaged with the sun gear and the gear ring; a main stirring rod is coaxially and fixedly connected to a lower end of the sun gear, an auxiliary stirring rod is coaxially and fixedly connected to a lower end of the planetary gear, disturbance blades are arranged on the main stirring rod, and a power device used for driving the disturbance blades to do reciprocating lifting motion and rotate on the main stirring rod is arranged between the main stirring rod and the auxiliary stirring rod. The method is advantaged in that the homogenizing effect of the flow-state solidified soil in the pouring process is good, construction efficiency is high, and the forming quality is good.

The invention discloses a 3D printing method for structured packing for a supergravity rotation bed with constant channels. According to the specific method, firstly, three-dimensional modeling software is utilized for constructing a circumferential silk screen structure with center symmetry, and an integral packing silk screen structure is constructed at equal intervals in the radial direction; supporting units with center symmetry are formed by using three interference structures in the radial direction, all the units are staggered by a certain angle to be sequentially arranged in the axialdirection, and accordingly an integral supporting structure is formed; finally, the supporting structure and the silk screen structure are assembled together, and a three-dimensional model for the structured packing for the supergravity rotation bed with center symmetry and the constant liquid and gas channels is formed; and finally, the 3D printing technology is utilized for manufacturing a solidmodel. According to the provided packing, gas and liquid mixing is very sufficient, the packing mass transfer effect is enhanced, and the equipment separation capability is improved; and the packinghas axial symmetry, dynamic balance is guaranteed, and the constant channels are achieved for the liquid phase and the gas phase.

The invention relates to Eu<3+> ion activated tantalate fluorescent powder, and a synthesis method and an application thereof. The Eu<3+> ion activated tantalate fluorescent powder has a general chemical formula of Na<2-2x>Eu<2x>Ta<2-2x>Ga<2x>NbO6F5, wherein x is a mole number of Eu<3+> ions and Ga<3+> ions which replace Na<+> and Ta<5+> respectively; and x is no less than 0.001 and no more than 0.15. The synthesis method provided by the invention is a solid-phase synthesis method. The fluorescent ceramic provided by the invention can be used for preparing LED lighting or display devices taking near ultraviolet and blue light semiconductor chips as excitation light sources, and can also be used for manufacturing light-emitting diodes, display materials, three-primary-color fluorescent lamps and field emission displays. The Eu<3+> activated tantalate fluorescent powder provided by the invention has the following obvious advantages: the fluorescent powder can stably emit red light and has excellent thermal stability, high color temperature and color rendering index, high luminous efficiency and high cleanliness, and has high excitation efficiency in near ultraviolet and blue light wavelength regions.