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200 results about "Particle packing" patented technology

Ternary precursor material with internally dense and externally loose structure primary particle bulk density, anode material and preparation method thereof

The invention discloses a ternary precursor material with an internally dense and externally loose structure primary particle bulk density, an anode material and a preparation method thereof. The particle of the ternary precursor material has an internally dense and externally loose structure bulk density. The ternary precursor material is NixCoyMn2M1-x-y-z(OH)2 or NixCoyMnzM1-x-y-zCO3, x is greater than 0 and smaller than 1, y is greater than 0 and smaller than 1, z is greater than 0 and smaller than 1, x+y+z is smaller than or equal to 1, M is one or more of Zr, Fe, Sm, Pr, Nb, Ga, Zn, Y, Mg, Al, Cr, Ca, Na, Ti, Cu, K, Sr, Mo, Ba, Ce, Sn, Sb, La and Bi. According to the invention, based on comprehensive consideration of the tap density and rate performance changing situation, the introduction position and concentration of a surfactant are designed, and the accumulation compactness of particles from the inside to the outside at all parts is regulated, thus finally realizing development of the optimal overall performance of the material. The materials prepared by the method provided by the invention have the characteristics of excellent post-sintering rate and cycle performance, and high tap density.
Owner:HARBIN INST OF TECH

Wet forming production method of dental all-ceramic restoration

The invention discloses a wet forming production method of a dental all-ceramic restoration. According to the method, a prefabricated ceramic block is not used for processing, and in production processes, a support column is not required for fixing the ceramic block and the restoration, so that the process steps of manually removing the support column by milling to separate the formed restoration and the surrounding ceramic block and burnishing and polishing the excessively rough outer surface of the restoration caused by removing the support column by milling are avoided, and the risks of disintegration of the restoration and premature fracture failure are further reduced. A ceramic hard biscuit for milling processing is produced by adopting a wet forming technology, and compared with the ceramic block which is formed by dry pressing and partially sintered, the microscopic structure is more uniform and contains fewer particle packing defects. Through milling processing of the ceramic hard biscuit which is not sintered, the surface finish which is higher than that obtained by processing the ceramic block which is partially sintered can be obtained. The dental all-ceramic restoration produced by adopting the technical scheme of the invention has the advantages of no connection points for the support column on the outer surface, no partial milling marks and ceramic cracks, bright and clean surface, uniform and consistent structure and high reliability.
Owner:HANGZHOU ERRAN TECH

Plastic particle packing device

The invention discloses a plastic particle packing device. A containing groove is formed in the upper surface of a base. A supporting plate is arranged in the containing groove in an up-down sliding mode. A supporting spring is arranged in the containing groove. One end of the supporting spring is connected with the supporting plate, and the other end of the supporting spring is connected with the bottom face of the containing groove. A feeding barrel is arranged over the supporting plate, and an opening of the end of the feeding barrel is right opposite to the supporting plate. A baffle is made of magnetic metal and arranged on the opening of the end of the feeding barrel in a sliding mode. A fixing plate is fixedly arranged on the periphery face of the feeding barrel. A driving spring is arranged between the fixing plate and the baffle, so that the baffle is away from the fixing plate, and seals the opening of the end of the feeding barrel. An electromagnet is arranged on the side, close to the baffle, of the fixing plate and right opposite to the baffle. A power supply device is connected with the electromagnet through a cable. A slide rheostat is connected to the cable and located in the containing groove, and the sliding part of the slide rheostat makes contact with the bottom face of the supporting plate. According to the plastic particle packing device, overweight of plastic particles in a container can be avoided.
Owner:重庆明杰塑胶有限公司

Landfill seepage-proof system for prolonging breakdown time of heavy metal irons and breakdown monitoring method

ActiveCN106759527ANo conductive failureControl impact migrationProtective foundationPermeability/surface area analysisEngineeringPollution
The invention discloses a landfill seepage-proof system for prolonging breakdown time of heavy metal irons and a breakdown method. The system comprises a seepage-proof cushion layer, a number direct current power supply, an electric current sensor, a computer and an alarming device. The seepage-proof cushion layer comprises a lower outer layer high-density polyethylene geomembrane, a lower conductive geotextile, a middle swelling clay layer, an upper conductive geotextile and an upper outer layer high-density polyethylene geomembrane. The upper conductive geotextile is connected with a negative pole of the number direct current power supply to serve as a cathode. The lower conductive geotextile is connected with a positive pole of the number direct current power supply to serve as an anode. Electric field force is applied to the middle seepage-proof cushion layer through the upper conductive geotextile and the lower conductive geotextile, so that the pollution irons of heavy metal and the like move reversely, and accordingly, the service life of the seepage-proof cushion layer is greatly prolonged. A microstructure of the middle swelling clay layer changes into a particle packing structure from an original flocculent structure under the effect of the electric field force, so that the transportation and diffusion of pollutants are better prevented.
Owner:ZHEJIANG UNIV

Electromagnetic dust collector

The invention discloses an electromagnetic dust collector which comprises a treatment box and an electrostatic generator; an air inlet is formed in the side wall of the treatment box in a penetratingmanner; a discharge sheet is fixed on the inner wall of the air inlet; an air inlet pipe and an air outlet pipe are fixed on the two symmetrical side walls of the treatment box in a penetrating mode correspondingly; two electromagnets are symmetrically fixed on the inner wall of the upper end and the inner wall of the lower end of the treatment box; deflection grooves are formed in the inner wallsof the two sides of the treatment box in a penetrating mode correspondingly; a collecting box is fixed on the exterior of the treatment box, and a collecting and separating mechanism is arranged in the collecting box. The electromagnetic dust collector has the advantages that along with the rotation of a motor in the control box, a positive electricity partition plate and a negative electricity partition plate alternately move; and impurity particles in the air flow also deflect towards the two sides alternately, so that when the particles deflect towards one side, the particles collected atthe other side can stably fall to the inner bottom of the collecting box without being influenced by wind pressure, and the collecting process of the particles is not influenced by particle accumulation.
Owner:卢兰

Energy-saving and environment-friendly plastic grinding equipment

InactiveCN111347593AAdjustable sizePrevent burning and deteriorationSievingScreeningParticle packingEngineering
The invention discloses energy-saving and environment-friendly plastic grinding equipment in the field of grinding equipment. The energy-saving and environment-friendly plastic grinding equipment comprises a box and a cooling device. A rotating shaft and a crushing device are arranged at the top of the box. A feeding funnel is arranged at the top of the crushing device. The lower end of the crushing device penetrates through the top wall of the box. The lower end of the rotating shaft penetrates through the top wall of the box to be provided with a grinding roller. A lower grinding device is arranged in an inner cavity of the box and is located below the grinding roller. Screening devices are arranged in the inner cavity of the box, the number of the screening devices is three sets, the screening devices are located below the lower grinding device, and guide plates are arranged below the three sets of screening devices. A lifter is arranged on the left side wall of the box. By means ofthe energy-saving and environment-friendly plastic grinding equipment, the grinding time is reduced, the sizes of grinding particles are adjusted, the situation that particles are scorched and go badis avoided through device cooling, plastic particles in limited intervals are screened out, and the situation that screens are blocked by particle accumulation is avoided through screen vibration.
Owner:张欣欣

Graphite composite material as well as preparation method and application thereof

The invention relates to a graphite composite material as well as a preparation method and application thereof. The graphite composite material is of a core-shell structure and comprises a secondary particle inner core and a second hard carbon coating layer on the surface of the secondary particle, wherein the secondary particles comprise a plurality of primary particles, and each primary particlecomprises a first hard carbon coating layer. In the graphite composite material provided by the invention, the hard carbon coating layer formed on the surface layer of the primary particle is tightlybonded with the inner core of the particle, no gap exists between the coating layer and the inner core, and the thickness consistency of the coating layer is high; the hard carbon coating layer of the secondary particle shell is beneficial to stabilizing the primary particle accumulation structure, and is beneficial to the long cycle performance of the material; the first hard carbon coating layer formed on the surface layer of the primary particle and the second hard carbon coating layer formed on the surface layer of the secondary particle can accelerate the desolvation process of lithium ions, so that lithium ions can be inserted into graphite more quickly; and according to the graphite composite material, the capacity can be ensured, and meanwhile, the quick charge and cycle performance can be greatly improved.
Owner:BTR NEW MATERIAL GRP CO LTD

Aftertreatment device of carbon black obtained by tyre cracking and treatment technology

The invention relates to an aftertreatment device of carbon black obtained by tyre cracking. The aftertreatment device comprises a material storage tank. The material storage tank is connected to a stock bin by a pneumatic conveying pipe and an air blower. The stock bin is connected to a transfer workbin by a pneumatic conveying pipe and a draught fan. Lower parts of the transfer workbin and a dedusting stock bin are connected to a flour mill respectively by a screw conveyor I and a screw conveyor II. The flour mill is connected to a powder material tank. The powder material tank is connected to a powder packing box and a pelletizer respectively by a screw conveyor III and a screw conveyor IV. The pelletizer is connected to a drying device. The drying device is connected to a particle packing box. The aftertreatment device of carbon black utilizes the pipes and pneumatic conveying to realize carbon black aftertreatment relative-sealing and has a device cost lower than that of chain plate conveying. The aftertreatment device and treatment technology have small environmental pollution because of a sealing environment. The invention provides the aftertreatment device of carbon black obtained by tyre cracking and a treatment technology using the same. Through the aftertreatment device and the treatment technology, carbon black aftertreatment theory becomes a reality, a carbon black recycle value is improved and company benefits are improved.
Owner:山东开元润丰环保科技有限公司
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