92results about How to "Good separation" patented technology

The invention relates to a pollution-free tube-bundle separation-type permanent-magnet separating device being suitable for separating superfine magnetic particles, which comprises a permanent-magnet magnetic field and a separating room, wherein a plurality of separating tubes are installed inside the separating room, and magnetic conduction media such as threadlike steel wool or steel emery are installed at the outer side of each separating tube. An annular permanent magnet is fixed on a rotating shaft at the outer side of the separating room. A C-shaped permanent magnet is adopted to produce high magnetic density and gradient, the magnetic field is applied to the periphery of the tube bundle through the filled magnetic conduction substances, and the fluid is separated from the magnetic conduction substances through the separating tubes so as to prevent the fluid from corroding and polluting the steel wool and the like. The device has a simple structure, is convenient to operate, is suitable for separating the magnetic carrier or catalyst from the fluid, and is particularly suitable for separating the weak magnetic superfine particles in the fluid.

The invention relates to a polarization light splitter and an LCOS liquid crystal stereographic projection system which uses the polarization light splitter. The polarization light splitter mainly comprises a non-light tight prism and polarization light splitting faces arranged on the prism, wherein, the polarization light splitter comprises three polarization light splitting faces and is combined into a whole by three or four prisms; thereby the polarization light splitter has the advantages of simple structure and good light utilization factor; moreover, unpolarized lights which pass through the polarization light splitter can be split into an S polarized light and a P polarized light which are relative high in purity. The LCOS liquid crystal stereographic projection of the invention adopts the polarization light splitter and two LCOS liquid crystal panels synchronously driven by image signals; before the S polarized light and the P polarized light are finally projected onto the projecting lens, the S polarized light and the P polarized light undergo three filtrations and two filtrations respectively, which contributes to the relatively high contrast; moreover, the separation between the S polarized light and the P polarized light which carry different image signals respectively is quite high. The projection system of the invention has the advantages of compact structure, and good image quality and stereo display effect.

The invention relates to a plasmid vector and a method for building a plant population by using the plasmid vector. The plasmid vector contains, at a replication origin, a gene expression box for expressing Cas9 protein, a first promoter, nucleotide sequences containing suicide gene sequences, a gRNA scaffold element and a termination signal, and at least one first enzyme cutting site located on the nucleotide sequence 5' end containing the suicide gene sequence and at least one second enzyme cutting site located at the nucleotide sequence 3' end containing the suicide gene sequence; furthermore, no first enzyme cutting site and no second enzyme cutting site exist in other positions of the plasmid vector. The first promoter is located at the upstream of the termination signal; the nucleotide sequences containing suicide gene sequences and the gRNA scaffold element are all located between the first promoter and the termination signal.

The invention relates to the field of the organic semiconductor thin-film solar cell, and specifically discloses a centrifugal assistant light active layer stratified organic solar cell based on spinning-coating process, and a preparation method thereof. The preparation method comprises the following steps: S1, cleaning a baseplate composed of a transparent substrate and an ITO transparent conductive cathode layer, and blow-drying by using nitrogen after cleaning; S2, spinning-coating, printing or spraying PEDOT: PSS precursor solution on the ITO transparent conductive cathode layer surface, and preparing an anode buffer layer, and performing low-temperature baking on the formed thin-film; S3, preparing a PBDB-ITIC light active layer on the anode buffer layer by adopting the spinning-coating process; S4, adhering the baseplate spun-coated with the PBDB-T:ITIC light active layer to a vertical sidewall to perform rotary centrifuging; S5, performing thermal annealing treatment on the PBDB-T:ITIC light active layer in a glovebox; S6, evaporating LiF on the PBDB-T:ITIC light active layer surface under the condition that the vacuum degree is 3*10<3>Pa, and preparing a cathode buffer layer; and S7, evaporating a metal cathode layer on the cathode buffer layer. And an aim of improving various performance parameters of the organic solar cell is finally improved.

The present invention discloses a grinding oil-water separator of crude oil, including motor, harmonic d-axis speed reducer and abrader in the interior of abrader a screw shaft is mounted, and a grinding ball is mounted, the tower portions of said abrader is equipped with a lower box, and between abrader and lower box a perforated plate is mounted. The crude oil is passed through inlet, and fed into the lower box, the mixed liquor being in the lower box also is passed through the perforated plate and fed into the separator, ground and separated, then fed into big tank by means of outlet of upper portion of the abrader. Said invented separator can produce lots of heat quantity in the course of separation to raise temperature of oil-water mixture so as to promote separation of oil and water.

The invention discloses a preparation method of a shape memory imprinting gel, and belongs to the technical field of adsorption material preparation. A prepared water-soluble phenylboronic acid, usedas a functional monomer, and tetrodotoxin are polymerized through a Pickering emulsion technology by utilizing the affinity effect of boron with nano-silica as a stable particle, a dispersion as a water phase and octadecyl methacrylate as an oil phase, an emulsion is introduced, polymerization is initiated by utilizing ultraviolet light to obtain a gel, and template molecules are eluted to obtainthe shape memory imprinting gel. The shape memory imprinted gel has a good adsorption separation performance and a remarkable adsorption separation effect on tetrodotoxin when applied to adsorption separation of tetrodotoxin in an aqueous solution. The prepared imprinted gel can be swelled and fully contacted with water after entering the water, the formed gel has a good structure, is not prone tobeing dispersed, can be restored to the original shape through drying after adsorption, has a certain shape memory function, is convenient for TTX enrichment, and can be repeatedly used and recycled.