94 results about "Field separation" patented technology

A two-step chemical precipitation process involving hydroxide precipitation and sulfide precipitation combined with “field separation ” technology such as magnetic separation, dissolved air flotation, vortex separation, or expanded plastics flotation, effectively removes chelated and non-chelated heavy metal precipitates and other fine particles from water. In the first-step, the non-chelated heavy metals are precipitated as hydroxides and removed from the water by a conventional liquid/solids separator such as an inclined plate clarifier to remove a large percentage of the dissolved heavy metals. The cleaned water is then treated in a second precipitation step to remove the residual heavy metals to meet discharge limits. In the second precipitation step, any metal precipitant more effective than hydroxide for metal precipitation can be used. The invention improves metal removal, lowers cost because fewer chemicals are used, produces less sludge, and reduces the discharge of toxic metals and metal precipitants to the environment. Magnetic separation is preferred for the separation of particles precipitated in the second stage. Similar methods can be employed for separation of other particulates from water. Particulates can also be removed by causing them to adhere to particles of expanded plastic, forming a floc lighter than water, so that the floc can be removed by flotation.

A two-step chemical precipitation process involving hydroxide precipitation and sulfide precipitation combined with “field separation” technology such as magnetic separation, dissolved air flotation, vortex separation or expanded plastics flotation, effectively removes chelated and non-chelated heavy metal precipitates and other fine particles from water. In the first-step, the non-chelated heavy metals are precipitated as hydroxides and removed from the water by a conventional liquid/solids separator such as an inclined plate clarifier to remove a large percentage of the dissolved heavy metals. The cleaned water is then treated in a second precipitation step to remove the residual heavy metals to meet discharge limits. In the second precipitation step, any metal precipitant more effective than hydroxide for metal precipitation can be used. The invention improves metal removal, lowers cost because fewer chemicals are used, produces less sludge, and reduces the discharge of toxic metals and metal precipitants to the environment.

Apparatus and methods for removal of pollutants from a stream of water, by binding the pollutant particles to magnetic seeding particles using a flocculating polymer, and then removing the composite magnetic particles from the water stream in a simple and efficient apparatus. The invention is applicable to many common water treatment applications but is especially important for high flow applications requiring efficiency and simplicity. Magnetic fields concentrate the composite magnetic particles in a stratified layer that is then continually separated from the moving stream of water. In another preferred embodiment, vortex separation is combined with magnetic separation to enhance magnetic seed material cleaning and to reduce the solids load on the final magnetic collector.

The invention discloses a method and a device for separating electric field-separation membrane coupling, which are characterized in that: separation membranes with different natures are parallelly arranged, and the outmost sides are provided with electrodes so as to form a plurality of layers of runners formed between the separation membranes and between the separation membranes and the electrodes; and fluid to be separated flows through the runners in a staggered way, and a DC electric field is applied in the direction vertical to the runners, so that electriferous molecules or microparticles generate deviation or dialytic electrophoretic behavior under the condition of the electric field, and an aperture screening effect of the separation membranes is combined so as to realize the process of quick and high-efficiency separation. The process can be performed only under the driving of the electric field, and also can be performed under the driving of the electric field and pressure. Compared with the conventional membrane process and electrophoresis process, the method and the device can greatly improve concentration and separation efficiency, improve separation factors, realize the separation which cannot be realized by the conventional membrane process, obviously reduce membrane fouling and improve the service life of the membranes.

The invention provides WNbTaMoV high-entropy alloy. The WNbTaMoV high-entropy alloy is composed of the elements of W, Nb, Ta, Mo and V and is of a single body-centered cubic structure. The invention further provides a preparation method of the WNbTaMoV high-entropy alloy. According to the preparation method of the WNbTaMoV high-entropy alloy, aluminothermic reaction in the combustion synthesis technology is combined with the hypergravity field separation technology, the preparation process is free of pollution and low in energy consumption, and the high-compactness WNbTaMoV high-entropy alloy can be rapidly prepared.

The invention provides a double-impeller mechanical stirring self-suction flotation machine and a flotation method. The double-impeller mechanical stirring self-suction flotation machine comprises a column type flotation cell, a rotary shaft, an upper impeller and a lower impeller, wherein the rotary shaft is vertically inserted into the center of the inner part of the column type flotation cell;the upper impeller is fixed to the middle lower part of the rotary shaft; the lower impeller is fixed to the lower part of the rotary shaft; a guide cylinder sleeves outside the upper impeller; the lower impeller is located on the outer side of the bottom part of the guide cylinder; guide plates are arranged on an inner wall of the guide cylinder along a circumferential direction at intervals; circulation holes are uniformly distributed on the lower part of the guide cylinder along the circumferential direction; an ore feeding pipe and an ore discharging pipeline are symmetrically arranged ontwo sides of the lower part of the flotation cell; the ore feeding pipe is connected with the guide cylinder; and a foam tank is arranged on the upper part outside the flotation cell. According to thedouble-impeller mechanical stirring self-suction flotation machine and the flotation method provided by the invention, a flotation bubble mineralization effect can be improved, a flotation three-phase flow field separation environment is optimized, the reverse flow of an ore pulp and bubbles is realized, and the efficiency and the separation precision of a flotation process are improved.

The invention provides a diffraction wave separating method based on shortcut edging sparse Radon transformation. Waves are separation from fields in a pre-stack gather with diffraction waves by utilizing high-efficiency sparse Radon transformation, and separated reflection waves and diffraction waves are obtained. Sparse Radon transformation obtains high-resolution model solution and can greatly improve the calculation efficiency; and at the same time, shortcut edging technology can effectively reduce the shortcut edging effect of Radon transformation, thereby improving the separating degree of the reflection waves and the diffraction waves in the Radon domain, and effectively carrying out wave and field separation on the reflection waves and the diffraction waves.

The invention relates to canine distemper live vaccine and a preparation method thereof. The preparation method takes a canine distemper virus natural attenuated strain CGMCC No.3201 with excellent immunogenicity and obtained by the inventor through field separation as a production strain to prepare the safe, effective and single-component canine distemper live vaccine. The canine distemper live vaccine effectively reduces the risk of importing other live viruses during canine distemper vaccine immunization and provides conditions for controlling the spread of fur-bearing animal diseases.

The invention relates to an equipment breaking emulsion and removing oil by ultrasonic, comprising a shell body, an ultrasonic emulsion breaking chamber and an air floatation separation chamber. The shell body is provided with an air inlet pipe, a water inlet pipe, a dissolved water inlet, a water outlet pipe, an oil outlet and a sewage outlet. The ultrasonic emulsion breaking chamber and the air floatation separation chamber are formed by the separation of a plurality of clapboards. The ultrasonic emulsion breaking chamber is provided with at least two ultrasonic generators. The ultrasonic emulsion breaking chamber is provided with an isolation board which at least separates two ultrasonic generators. The ultrasonic generators are arranged between the distance of 1/4 to 1/2 to the bottom of the ultrasonic demulsification chamber. The water outlet pipe is arranged on the lower part of the air floatation chamber. Compared with the prior art, the equipment of the invention for breaking emulsion and removing oil is simple in structure and high in oil removal efficiency, which completely solves the problem of secondary emulsification caused by mutual interference and mutual superposition among ultrasonic. The invention is uniform and easy in flow field separation, low in energy consumption, easy in operation and convenient in operation and maintenance.

A mixed color sequence control method for a backlight module and a display unit for the control method are disclosed. The control method provides a mixed color sequence algorithm to control the backlighting module of a RGB LBD to produce highly contrastive backlighting. Since a liquid crystal display panel and the backlight module of the LBD are controlled synchronously, the problems of color field separation effect and motion blur in conventional color sequence control method are avoided in the method of the invention, thus improving contrast ratio. Meanwhile, the mixed color sequence control method has effects in restraining color field separation effect and motion blur on a color filter-less optical compensated bend OCB display panel.

The invention relates to duck virus hepatitis inactivated vaccine and a preparation method thereof. The preparation method comprises the following steps: taking a duck hepatitis virus virulent strain CGMCC No.3202 with excellent immunogenicity and obtained by the inventor through field separation as a viral strain for producing vaccine; inoculating the viral strain in a susceptible chick embryo and obtaining the embryo fluid; and carrying out emulsification after inactivation to prepare the safe effective duck virus hepatitis vaccine. The duck virus hepatitis inactivated vaccine aims to prevent duck virus hepatitis virus infection and fills a gap in the market, thereby providing conditions for controlling the spread of duck virus hepatitis on poultry farms.

The application discloses an imaging method, an imaging device and a computer storage medium. The method includes the steps of constructing an underground shot point forward propagation wave field and a detection point back propagation wave field; determining types of media in which the forward propagation wave field and the back propagation wave field are propagated; when the media are isotropic, subjecting the forward propagation wave field and the back propagation wave field to longitudinal and transverse wave field separation according to a preset equation decoupling algorithm, and when the media are heterogeneous anisotropic, subjecting the forward propagation wave field and the back propagation wave field to longitudinal and transverse wave field separation according to a preset variation function IDW interpolation algorithm; decomposing the separated longitudinal wave field and/or transverse wave field in the four directions of the up and down and left and right to obtain a plurality of directional wave fields of the longitudinal wave field and/or transverse wave field; and selecting at least two directional wave fields from the plurality of directional wave fields, and subjecting the selected wave fields to normalized cross-correlation vector imaging. The imaging method can effectively suppress the coupling noise, low frequency noise and imaging artifact noise generated during the inverse time migration of elastic waves and improve the image quality.

The invention discloses an ore prospecting method utilizing ground high-precision gravity measurement. The ore prospecting method mainly comprises six methods, namely a wave number domain iteration method of a potential field high-order derivative, a potential field separation method based on an iterative filtering method, a TASD method for identifying a boundary of a geologic body, an Euler deconvolution method for potential field data processing, a potential field abnormal cross-correlation imaging technical method and a gravity man-machine interaction profile forward modeling method. The ore prospecting method utilizing ground high-precision gravity measurement has the advantages of processing and explaining data of a plurality of gravity profiles, adopting the explaining methods covering the wave number domain derivative iteration method, the iterative filtering method of field separation and the cross-correlation imaging technology based on residual anomalies to be applied to gravity data, and achieves a good processing result.

The invention discloses a system for measuring micro-fine pulverized-coal particle charge-mass ratio distribution. The system comprises a particle friction charging device, a particle electrical field separation device and a particle charge-mass ratio measurement device, wherein the particle friction charging device comprises a feeding cylinder and a vibrating feeder, and the feeding cylinder is connected with the feed end of the vibrating feeder; the particle electrical field separation device comprises two insulating plates with adjustable space, a particle separation chamber is formed between the insulating plates, electrode plates are arranged on the outer sides of the insulating plates and connected with a high-voltage power source through wires, a feeding funnel is arranged at the upper end of the particle separation chamber and connected with the discharging end of the vibrating feeder; and the particle charge-mass ratio measurement device comprises a plurality of charge-mass ratio measurement components arranged at the bottom end of the particle separation chamber transversely and densely. The system not only can be used for measuring bipolar charge of clean coal and a proportion of positive and negative live parts, but also can be used for measuring the charge condition of non-sorted coal particles, so that the micro-fine pulverized-coal particle charge-mass ratio is accurately measured.

The invention provides an AR optical system and an AR display device, and the AR optical system comprises a depth-of-field separation structure corresponding to an image source, wherein the depth-of-field separation structure is used for converting light emitted by the image source into a plurality of light beams with different depths of field; a convergent lens which is positioned on an emergentlight path of the depth-of-field separation structure and is used for receiving and shaping a plurality of light beams with different depths of field; a first semi-transmitting and semi-reflecting mirror which is positioned on one side, far away from the depth-of-field separation structure, of the convergent lens, and is used for reflecting the shaped light beams with different depths of field towards a set direction; a concave mirror which has a preset transflective ratio and is located on one side of the reflection light emitting direction of the first semi-transparent and semi-reflective mirror, wherein the concave surface of the concave mirror faces the first semi-transparent and semi-reflective mirror, and the concave mirror is used for reflecting and converging multiple light beams with different depths of field and then emitting the light beams into a set observation position through the first semi-transparent and semi-reflective mirror. According to the invention, the light emitted by the image source is converted into the plurality of light beams with different depths of field, thereby generating images with different depths, and improving the user experience.

The invention relates to a mobile moire interferometer, comprising a laser, a light path reflecting lens, a beam expanding lens, a collimating lens, a U-V field separation device and an image acquisition device, wherein the entire interferometer is divided into a main light path mobile platform and an image acquisition mobile platform, the U-V field separation device has the function of plus and minus 90 degree rotation, and the displacement field of the orthogonal grating of a measured piece in a non-vertical or non-horizontal direction can be measured; the interferometer has compact structure, convenient mobilization and favorable damping property; and provided with a high power laser, the interferometer can be matched with a large scale testing machine to use, and can meet the requirements of high temperature mechanics test and on-site field measurement.

Computing device, computer instructions and method for up-down separation of seismic data. The method includes receiving the seismic data, which includes hydrophone data and particle motion data; performing a first up-down separation, which is independent of a ghost model, using as input the hydrophone data and the particle motion data, to obtain first up-down separated data; performing a second up-down separation by using as input a combination of (i) the hydrophone data and/or the particle motion data and (ii) the first up-down separated data, wherein an output of the second up-down separation is second up-down separated data; and generating an image of the subsurface based on the second up-down separated data.

The invention discloses a method and device for acquiring direction fields of overlapped fingerprints. The method includes the following steps that effective areas of the fingerprints are calibrated, images are partitioned, discrete Fourier transformation is conduced on the partitioned images, low-frequency components are filtered, extreme point pairs of frequency domain amplitude are looked for, and the initial direction fields of the partitioned images are acquired according to the extreme point pairs; matrix modeling is conducted on the initial direction fields of the partitioned images in the overlapped effective areas, relevant matrixes are calculated, initial marked probability matrixes are set, then, random marking, response calculation, marked probability matrix update and convergence judgment are sequentially iteratively conducted, and eventually the separated independent direction fields of the two fingerprints are acquired; the independent effective areas and the separated independent direction fields are combined, and then the separated direction fields of the fingerprints are acquired by selecting one combination mode. The device comprises a calibration module, an initial direction field estimation module, an independent direction field separation module and a combination selection module. The method and device for acquiring the direction fields of the overlapped fingerprints have the advantages of being high in separation quality of the overlapped fingerprints, good in accuracy of ridge detection, and wide in application range.

The invention relates to a system for realizing a main data model version and field separated management function based on a big data environment. The system comprises a model version initialization module which is used for carrying out initialization operation on a basic table, and realizing the establishment of a model, the generation of a version number, the creation of a service field under amodel version, the effectiveness of the model version and the generation of a model version storage data table in a release library; The model version upgrading module which is used for revising according to the previous model version; The business field separation management module which is used for carrying out separation management on each model and business fields bound with the model; And theservice field operation module which is used for modifying the service field under the model version. The invention also relates to a method for realizing the function of separately managing the version and the field of the main data model based on the big data environment. By adopting the system and the method, the purposes of fine, flexible management, high efficiency and full use of data are achieved through separate management of model versions and fields, and multi-industry and multi-field main data management requirements are met.

The present invention discloses a three-dimensional geological modeling-based aeromagnetic anomalous field separation method and system. The aeromagnetic anomalous field separation method comprises the steps of firstly establishing a three-dimensional magnetic geologic body model, then dividing the three-dimensional magnetic geologic body model into a plurality of block body structures, calculating the magnetic field values of the block body structures at an exploration point and summing to obtain a magnetic field calculation value of the exploration point; when the absolute value of the difference of the magnetic field calculation value and a magnetic field actual measurement value is greater than a first preset value, reconstructing the three-dimensional magnetic geologic body model until the absolute value of the difference of the magnetic field calculation value and the magnetic field actual measurement value is less than or equal to the first preset value, and outputting the classification identifiers of the block body structures and the magnetic field intensity. According to the present invention, the magnetic field forward calculation is carried out according to the deductive lithologic structural maps obtained by the qualitative analysis more, and by comparing the aeromagnetic field forward calculation results and the actual measurement results, the new geological constraint conditions are added continuously during a model correction process, so that the modeling results are more reliable, and the aeromagnetic anomalous field separation precision is improved.