63results about How to "Achieve separability" patented technology

The invention relates to a tail gas treatment process of the technical field of chemical industry, in particular to a method for recovering tail gas from trichlorosilane production and special equipment used in the method. The method for recovering the tail gas from the trichlorosilane production comprises the following steps: pressurizing followed by condensing the tail gas produced by synthesizing the trichlorosilane to condense chlorsilane to form condensate; allowing noncondensable gas to enter an absorption tower in which the chlorsilane absorbs chlorine hydride to obtain chlorsilane absorption solution, and discharging crude hydrogen from the top of the absorption tower; then transferring the condensate and the chlorsilane absorption solution to an analysis tower to analyze the hydrogen chloride dissolved in the chlorsilane, and discharging the hydrogen chlorine from the top of the analysis tower; and performing recovering procedure on the analyzed chlorsilane. Furthermore, the invention also discloses the special equipment for the method. The invention has the characteristics of simplicity, and practicality, and high recovery rate.

The invention relates to the field of agricultural machines and particularly relates to a furrowing machine. The furrowing machine comprises a cutter assembly which comprises blades and a cutter disk base used for fixing the blades; a driving mechanism connected with the cutter disk base drives the cutter disk base to rotate; the cutter disk base is fixedly connected to a cutter assembly support in a rotating mode; the cutter assembly support is connected with a tractor; an adjusting mechanism is arranged between the tractor and the cutter assembly support and used for adjusting the height of the cutter disk base in the vertical direction; the adjusting mechanism arranged between the tractor and the cutter assembly support can effectively adjust the height of a cutter base in the vertical direction, and therefore the purpose that the blades are driven to make contact with or be separated from the ground can be achieved, the depth of the portions, entering soil, of the blades is set through the adjusting mechanism, furrowing depth consistency can be guaranteed, an operator only needs to hold the tractor in the hand, the adjusting mechanism enables the blades to be separated from the ground when furrowing operation is not needed, and therefore the tractor can be driven to run while the cutter assembly does not need to be disassembled; the furrowing machine is convenient to operate and can remarkably relieve the labor intensity of an operator.

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and device for switching. The method and device for switching are used for solving the problem that according to an E-UTRAN structure in the prior art, due to the fact that the switching frequency and the switching times of UE are greatly increased, the risk of communication interruption is increased when the UE conducts switching. The method for bearer separation switching comprises the steps that after the UE receives a bearer separation order from a macro base station, an MAC layer entity and a PHY entity which correspond to a target base station of the UE after switching is conducted are established; bearers needing to be separated and delivered to the target base station are mapped to the MAC layer entity and the PHY entity which correspond to the target base station; connection of the bearers and the macro base station is kept and the bearers have the access to the target base station. The method achieves the function of bearer switching and further achieves the purpose of separation and convergence of the user plane bearer and the control panel bearer.

The invention provides a nano-catalysis, electrolysis, flocculation and air-floatation device. A coagulative precipitation tank, a primary air-floatation tank, an electrolytic air-floatation tank and a slag-discharging tank are arranged in a housing of the device, wherein the top of the coagulative precipitation tank is provided with a water inlet and a mixer; the bottom of the coagulative precipitation tank is communicated with the primary air-floatation tank; a side sewage-draining outlet is connected with a sewage-draining pipe; a dissolved gas release pipe is arranged at the edge of the primary air-floatation tank; the sewage-draining outlet is connected with the sewage-draining pipe; the upper portion of the inner side of the primary air-floatation tank is communicated with the electrolytic air-floatation tank; the electrolytic air-floatation tank is divided into an upper layer and a lower layer by an upper-lower separator plate; a slag-scraping device is arranged in an upper gas-liquid separation chamber; an electrolytic cell is mounted between the upper layer and the lower layer of the electrolytic air-floatation tank; the bottom of the electrolytic cell is fixed on the inner bottom of the casing; the top of the electrolytic cell is open and horizontal with the top of the upper-lower separator plate; an electrode is installed in the electrolytic cell; and an interval between an anode and a cathode of the electrode serves as a water passage. The device integrates multiple functions of electrolysis, flocculation precipitation, air-floatation and the like together, has high automation degree, sewage-discharging efficiency and low running cost, and is convenient for operation and maintenance.

The invention discloses a method for determining content and purity of L-carnitine in milk powder, comprising the following steps in sequence: 1) taking the milk powder as a sample for sample treatment; 2) preparing standard solutions respectively by taking an L-carnitine standard substance and a D-carnitine standard substance; 3) correspondingly preparing an L-carnitine standard solution and a D-carnitine standard solution obtained the step 2) into an L-carnitine derivative solution containing gradient concentration and a D-carnitine solution containing gradient concentration; 4) carrying out derivatization reaction on the sample solutions; 5) carrying out high performance liquid chromatography on the products obtained in the step 3) and step 4); 6) acquiring the concentration cL of the L-carnitine and the concentration cD of the D-carnitine; and 7) acquiring the content and the purity of the L-carnitine in the milk powder sample. By adopting the method for determining the content and the purity of L-carnitine in the milk powder of the invention, the detection sensitivity can be greatly improved.

The invention discloses a functionalized mesoporous molecular sieve and application of the functionalized mesoporous molecular sieve in recovering noble metal. The functionalized mesoporous molecular sieve is a silicon mesoporous molecular sieve grafted with amido or sulfydryl. The application of the functionalized mesoporous molecular sieve in recovering the noble metal comprises the following steps: processing a waste electronic circuit board to obtain metal dissolving solution; regulating the pH of the metal dissolving solution to about 1, and selectively absorbing palladium ions and/or platinum ions in the metal dissolving solution by using the functionalized mesoporous molecular sieve; regulating the pH of the metal dissolving solution to about 2.5, and selectively absorbing aurum ions in the metal dissolving solution by using the functionalized mesoporous molecular sieve; and respectively washing the molecular sieve carried with palladium ions and/or molecular sieve carried with platinum ions and the molecular sieve carried with aurum ions, thereby enabling the noble metal to enter the solution through desorption and simultaneously reactivating the molecular sieve. The method for recovering the noble metal has the advantages of simple process and high noble metal absorption rate, and is environment-friendly.

The invention discloses a ciphertext domain reversible information hiding method based on image secret sharing, and the method comprises the steps: encrypting an original image, so as to obtain a ciphertext image; embedding two layers of secret information through polynomial redundancy and the homomorphic property of secret sharing, so that a secret image is obtained; acquiring a second key corresponding to second-layer secret information; directly extracting second-layer secret information from the second secret-carrying ciphertext image through a second secret key; collecting a plurality of different second secret-carrying ciphertext images; recovering the secret by using a Lagrange interpolation polynomial, and then performing homomorphic decryption on the second secret-carrying ciphertext image; and after homomorphic decryption, recovering the original image and extracting the first-layer secret information by adopting a first secret key corresponding to the first-layer secret information and a third secret key corresponding to the ciphertext image. According to the method, the fault tolerance and the disaster resistance of the image with the secret ciphertext are enhanced, the embedding capacity of the reversible information hiding algorithm of the ciphertext domain is improved, and the safety of the carrier image and the secret information is ensured.

The invention relates to a sand and water separation system and method, can effectively separate mud, water and sand in a mud, sand and water mixture, and also can dehydrate the sand and the water efficiently. The sand and water separation system comprises a dehydration screen, a rotational flow device or a rotational flow device group and a vibrating and screening device; the vibrating and screening device and a wide-amplitude water-storage-type dehydration screen are integrated on a base; the rotational flow device or the rotational flow device group is integrated above the wide-amplitude water-storage-type dehydration screen through a support frame; a sand and water mixture is conveyed between the vibrating and screening device and the wide-amplitude water-storage-type dehydration screen through a sand flowing groove; the wide-amplitude water-storage-type dehydration screen is positioned on a rack through a shock absorber; the wide-amplitude water-storage-type dehydration screen is driven by a shock excitation motor or a cam wheel driving mechanism; a wide-amplitude water storage groove is positioned below the wide-amplitude water-storage-type dehydration screen; a material inlet of the rotational flow device or the rotational flow device group is communicated with an outlet of a slurry pump at the side part of the rack through a conveying pipeline; and the motor drives the slurry pump through a belt driving mechanism.

The invention provides a separable endoscope which comprises a first component and a second component. The first component comprises an oblique mirror, the plane end of the oblique mirror is fixedly connected with one end of a rotary shaft, the other end of the rotary shaft is fixedly connected with one end of a magnet, and the magnetic is arranged in a first pipe shell. A supporting sleeve is disposed on the outer side of the rotary shaft, one end of the supporting sleeve is fixedly connected with one end of the first pipe shell, and the other end of the supporting sleeve and the oblique mirror are arranged outside the first pipe shell to form an insertion end. The second component comprises a connection optical fiber connected with one end of a second pipe shell, an insertion opening is formed in the other end of the second pipe shell, and a self-focus lens is fixedly disposed in the second pipe shell. The separable endoscope is used for solving the problems that an OCT endoscope lateral imaging probe in the prior art is complex in design and low in flexibility, is limited by the MEMS technology and only can be used for single wavelength detection.

The invention relates to a method for collecting lactic acid from zymotic fluid, and comprises the steps as follows: the proper double aqueous phase system is selected to adjust the distribution of the lactic acid and the lactobacillus in the double aqueous phase system, the lactic acid is distributed at a polymer-rich phase, and the lactobacillus is distributed at a salt-rich phase to achieve the lactic acid collecting. The selected double aqueous phase system is a neutral extracting system close to the PH valve of 5.5 to 6.0 required by zymolysis of the lactic acid, the finished product is separated from the reacting matters. The phase separation provides a reaction power for the zymolysis of the lactic acid, so that the invention is beneficial to improve the productivity of the lactic acid. Moreover, the method disclosed in the invention can be coupled with the zymotic method of the lactic acid to reform the prior separating method of the lactic acid.

The invention discloses a bi-directional spiral flash vessel applied to an air-supplementing and enthalpy-increasing heat pump air-conditioning system. The flash vessel comprises a barrel body, the barrel body comprises an upper-segment barrel body, an intermediate-segment barrel body and a lower-segment barrel body from top to bottom, an air outlet pipe is arranged on the side wall of the upper-segment barrel body, a first cooling agent inlet and outlet pipe and a second cooling agent inlet and outlet pipe which extend to an inner cavity of the barrel body are arranged on the side wall of the lower-segment barrel body, the portions, inserted into the barrel body, of the first cooling agent inlet and outlet pipe and the second cooling agent inlet and outlet pipe are spiral copper pipe portions both of which spirally extend upward clockwise or anticlockwise, and the two spiral copper pipe portions are assembled in a coiled mode so as to jointly form a gas-liquid separation device. By means of the bi-directional spiral flash vessel, the limit of unidirectional flow of an existing flash vessel is broken through, the bi-directional flowability is achieved, the air-supplementing and enthalpy-increasing system can be greatly simplified, meanwhile, the gas-liquid separation effect of the flash vessel is guaranteed and improved, and the bi-directional spiral flash vessel is applicable to an application occasion where the installation height of the flash vessel is limited and the specific value between the height and the diameter is small.

The invention belongs to the technical field of biomass energy, and discloses an oligomer flocculating microalgae utilization method and application method thereof. The utilization method comprises the steps of adding oligomer in a culture solution cultured with microalgae, stirring to make the microalgae flocculating and sinking, after stewing and layering, separating the upper layer clear solution, to obtain the flocculated culture solution and microalgae; the oligomer is the mixed oligomer obtained after hydrolysis of the amino silane coupling agent alcobolic solution. The method through adding oligomer in the microalgae culture solution, through the action of the protonated amino group in oligomer with the negative charge brought by hydroxyl or sulfate radical and other group on the microalgae cell surface, achieves the effect of removing the surface repulsive force among the cells, and breaks the balance state of microalgae in the culture solution, meanwhile, because of the spatial steric hindrance of olgomer, the microalgae cells are made connected in a bridging mode and react by agglomeration settlement, thus achieving the effect of flocculation harvesting, the harvesting efficiency can reach 90% or above, can be widely applied to the Isolation and harvesting of microalgae.

The invention discloses an automatic separating and polishing system and processing technique for steel balls subjected to demolding, and belongs to the technical field of production of wear-resistant steel balls. The automatic separating and polishing system for the steel balls subjected to demolding comprises a hoisting crane, a ball and sand separating device, a sorting table and a polishing device, wherein the ball and sand separating device, the sorting table and the polishing device are distributed in sequence according to a production line, and used for separating, sorting and polishing through the dead load of the steel balls separately. The hoisting crane is hoisted above the production line. As for the ball and sand separating device, the steel balls knock mutually due to weight of the steel balls, so that steel ball modules are separated, the steel balls can roll due to the gravity of the steel balls and the roundness shape, and automatic separation of risers and molding sand is facilitated; and finally, through the gravity of the steel balls and the roundness shape, the steel balls grind and polish one another, the processing efficiency is high, and separation and polishing are thorough.

The invention discloses a quick separation method of lotus seed oligosaccharide monomers with prebiotic effect, belonging to the technical field of extraction separation of plant active components. The method comprises the following steps: by using fresh lotus seed as the raw material, carrying out material selection and drying, pulverization and screening, compounding with water, starch water washing, constant-temperature reflux extraction, vacuum filtration, alcohol precipitation, centrifugal concentration, freeze-drying and MPLC (medium pressure liquid chromatography) separation and MPLC secondary separation to obtain the lotus seed oligosaccharide monomer powder with identical or different polymerization degrees, wherein the purity of each lotus seed oligosaccharide monomer can reach 95% or above. Compared with the high-performance liquid chromatography and high-speed counter-current chromatography, the MPLC for separation adopted by the invention has the advantages of high preparation quantity (the sample loading quantity can be milligram level to hectogram level) and short separation time, and the separating column filler can be automatically filled, thereby enhancing the separation selectivity. The method has the advantages of stable technical process and greatly higher separation efficiency, is simple to operate, and can be used for separation preparation of high-purity high-quantity lotus seed oligosaccharide monomers.

The invention discloses a split type mobile phone camera which comprises a mobile phone shell, a camera body, a connection data device, a mobile phone camera shooting circuit board and an angle adjuster. The camera body is embedded in the upper side of the mobile phone shell; the camera body is connected with the mobile phone camera shooting circuit board through a connection data device. The upper side of the angle adjuster is connected with the camera body, and the lower side of the angle adjuster is embedded in the mobile phone shell; the camera body is embedded in the groove of the mobilephone shell; the camera body is connected with the mobile phone camera shooting circuit board through the connection data device. On one hand, normal shooting of the mobile phone camera is not affected, on the other hand, the mobile phone camera can be embedded in the inner side of the mobile phone shell without adjustment, the safety is improved, the effects of separation of a short-distance mobile phone and the camera and angle adjustment can be achieved by arranging the angle adjuster, and a better shooting effect is achieved.

The fuse body in use for 6KV-1000KV AC high voltage current limiting fuse is produced by using materials according to weight portions: red copper : stannum : phosphor : alum = 50-120:1-8:0.5-5:0.1-2. Structure of the fuse body includes basal body and isometric narrow neck composed of isometric circular arcs setup on two sides of the basal body. Long narrow neck composed of concave arc longer than length of isometric circular arc is setup on the basal body. Long narrow necks with intervals are setup between isometric narrow necks. Performances including carrying capacity, cold resistance, hot resistance, and on/off capability of the fuse body are better than performances of fuse body prepared from silver. Specially, it is better result by using overload current under opening mode. Advantages are: low price being as 5% cost of silver, reduced difficulty for assembling technique, lowered requirement on quartz sand and outer porcelain tube, and power consumption.

The invention relates to a metal plate laser cutting machine. The metal plate laser cutting machine comprises a machine tool main body, a nozzle, a clamping groove, a clamping frame, ejecting devices,a clamping groove and a clamping device; the nozzle is mounted on the machine tool main body; the clamping groove is mounted on the outer wall of the nozzle; the clamping frame is clamped in the clamping groove; the ejecting devices are uniformly mounted in the clamping frame; the clamping groove is formed in the front side in the clamping frame; and the clamping device is mounted in the clampinggroove. The metal plate laser cutting machine can solve the following difficulties: totally cut wastes can fall down from cutting holes under the gravity effect when metal plates are cut through laser by a traditional laser cutting machine; when the metal plates are thicker, the inclined falling condition of the wastes is possibly generated during falling to cause blockage of the wastes in the cutting holes in the falling process; and spark is frequently generated during cutting of the metal plates by the laser cutting machine, and is easy to splash to non-machining areas of the metal platesto cause more cakes around the metal plates, so that the laser cleaning is more difficult.

The invention provides an industrial production process for penis cervi protein oligopeptide. The industrial production process comprises the following specific steps: (1) raw material preparation, (2) soaking and softening, (3) trituration, (4) degreasing, (5) defibrination, (6) salting out, (7) filter pressing, (8) enzymolysis, (9) oligopeptide ultrafiltration, (11) nanofiltration, entrapment, concentration, desalination and impurity removal; (11) degerming, (12) encapsulation, (13) freeze drying and (14) bottle cap plug pressing and labeling. The industrial production process is simple andreasonable in design, natural resources are adequately utilized, and high value-added industrial and large-scale production can be realized. The penis cervi protein oligopeptide can taken eaten as a Chinese patent medicine and a functional health product additive, or can be directly taken and simultaneously can be directly used as a nutritional a cosmetic additive.

The invention discloses a novel material capable of separating soil pollutants. The novel material consists of a ferromagnetic material, porous carbon and clay. The novel material has the following beneficial effects: the prepared novel material capable of separating the soil pollutants is put into polluted soil and can effectively adsorb pollutants, especially heavy metal ions and pesticide residues, in the soil; and the magnetic adsorption material has magnetic induction capacity and can be separated from soil by utilizing magnetic attraction force and recycled in a centralized manner, and pollutants in the soil are carried out and separated from the original soil along with the adsorption material, so the aim of separating and radically treating the pollutants is fulfilled.

The invention relates to a protruded spiral groove type swirler. The swirler is of a hollow structure, wherein a hollow cylinder section is arranged at the upper part of the swirler, and a hollow cone section is arranged at the lower part of the swirler; a feeding pipe is communicated to the upper end of the cylinder section, downward inclines relative to the cylinder section and is tangent to the cylinder section, an overflow pipe is inserted into the cylinder section, and the bottom of the cone section is a closed end; a spiral groove is formed in the wall of the swirler in a manner that the wall of the swirler spirally and externally protrudes from top to bottom along the circumferential direction, the upper end of the spiral groove is communicated with the feeding pipe, and the lower end of the spiral groove is communicated with an underflow pipe; light and heavy mediums enter the swirler through the feeding pipe, the heavy mediums slide downward in the spiral groove and are discharged through the underflow pipe, and the light mediums are discharged through the overflow pipe, thereby realizing the separation of the light and heavy mediums. According to the protruded spiral groove type swirler, the separation of the light and heavy mediums can be led passingly when a swirling flow field is not changed, so that the grading efficiency is improved, the division diameter is decreased, and common overflow and thickening phenomena of the swirler are reduced.

The invention relates to a processing method of a short message value-added service. A short message value-added service platform connected with a short message center is established, and is used to preserve the value-added service signing information of users, and a short message value-added service platform network gateway connected with the short message value-added service platform is established, and is used to store the called service signing sign of the whole network user, when the short message center receives the short message sent by the users, if calling or called number belongs to the user signing the calling service or the called service in the service region, the short message is transmitted to the attributive short message value-added service platform through the short message center and is processed, and the processed short message is returned to the attributive short message center, the short message is transmitted to the called users through the short message center; if the called number belongs to the user signing the called service outside the service region, the short message is re-transmitted through the short message value-added service platform network gateway of the short message value-added service platform and is respectively processed to the attributive short message value-added service platform.

The invention discloses a main clutch electrically controlled hydraulic operation mechanism for a harvester. The main clutch electrically controlled hydraulic operation mechanism comprises a main clutch, wherein a rotating arm which realizes combination and separation of the main clutch is connected with a piston of a main clutch oil cylinder through a connection device; the connection device comprises a rotating arm connection fork and a middle connection piece which are connected with each other; an opening in which the rotating arm is inserted is formed in a fork head at one end of the rotating arm connection fork, and opposite long holes are respectively formed in side plates on two sides of the opening; the end part of the rotating arm can move in the long holes through pin shafts; a tension spring is arranged on the main clutch oil cylinder; two ends of the tension spring are respectively connected with a cylinder body and the piston of the main clutch oil cylinder; a combination electrical control switch and a separation electrical control switch are respectively arranged at two ends of the rotating arm in a rotating travel; an electrical control button is arranged in a cab; the electrical control button is connected with an electromagnetic reversing valve in a hydraulic control loop for controlling the main clutch oil cylinder; a uni-directional throttling valve is arranged between the electromagnetic reversing valve and the main clutch oil cylinder. The main clutch electrically controlled hydraulic operation mechanism for the harvester simplifies connection pieces of the whole machine, improves the part reliability and greatly reduces the labor intensity of a driver.

The invention provides an industrial production technology of deerskin protein oligopeptide. The industrial production technology comprises the following specific steps: 1, preparing a raw material; 2, slicing; 3, soaking for thawing; 4, mincing; 5, defatting; 6, grinding into a slurry; 7, salting out; 8, performing pressure filtration; 9, enzymolyzing; 10, performing ultrafiltration to obtain oligopeptide; 11, concentrating through nanofiltration interception, desalting and removing impurities; 12, sterilizing; 13, filling; 14, performing freeze drying; 15, pressing a bottle stopper and labeling. By the industrial production technology, the technology is simple, the design is reasonable, a natural resource is fully utilized, and high-added value industrial and large-scale production can be achieved. Hydrolysis is performed by using food-grade protease, so that the safety is high no side effects are caused; the deerskin protein oligopeptide can be used as an additive of a proprietary Chinese medicine and a functional health-care product or directly taken and can be also used as a cosmetic additive.

The invention relates to a kit and a method for extracting pectin-rich polysaccharide plant DNA. The kit comprises a desaccharifying buffer solution, a lysate, leaching liquor, a column buffer solution, a protein-free solution, a rinsing solution, an eluant and a DNA adsorption column. An extraction method comprises the following steps: removing polysaccharide from a plant, extracting DNA, subsequently extracting and removing polysaccharide again by filtering with a column, thereby acquiring the extracted DNA with high quality and no impurity. The kit and the method provided by the invention are suitable for the extraction of plant genome DNA of mass secondary metabolites rich in polysaccharide, polyphenol, and the like. The kit has the characteristics of a low cost, simple, convenient andquick operation, high quality, high efficiency, high applicability, and the like.

The invention relates to the field of building waste recycling, in particular to a waste building material recycling machine. The machine comprises a shell, a feeding port is formed at the top of the shell, a reinforcing steel bar discharging port is formed at the bottom of the shell, a concrete discharging port is formed at one side of the shell, and a crushing mechanism, a screening mechanism and a dust removal mechanism are arranged in the shell; and in the working process, reinforced concrete blocks to be treated are added through the feeding port, the reinforced concrete blocks fall into the screening mechanism after being crushed by the crushing mechanism, then concrete fragments are discharged from the concrete discharging port, the reinforcing steel bar fragments are discharged from the reinforcing steel bar discharging port, meanwhile, the dust removal mechanism sucks and removes dust in the shell, and dust pollution is reduced. According to the machine, the structure is simple, the effect of separating the reinforcing steel bars from the concrete powder is achieved, follow-up machining treatment is facilitated, and manpower is saved; and meanwhile, the air blown out of an air outlet accelerates fine concrete particles on a conveying belt to fall into a material guiding groove from a strip-shaped groove, and the fine concrete particles are discharged from the concrete discharging port under the action of gravity.

The invention provides an industrial production process for wood frog body protein oligopeptide. The industrial production process comprises the following specific steps: (1) raw material preparation,(2) soaking and softening, (3) trituration, (4) degreasing, (5) defibrination, (6) decoloration, (7) salting out, (8) filter pressing, (9) enzymolysis, (10) oligopeptide ultrafiltration, (11) filterpressing, entrapment, concentration, desalination and impurity removal; (12) degerming, (13) encapsulation, (14) freeze drying and (15) bottle cap plug pressing and labeling. The industrial productionprocess is simple and reasonable in design, natural resources are adequately utilized, and industrial and large-scale production can be realized. By hydrolyzing by virtue of food grade protease, thesafety is high, and side effects are avoided; and the wood frog body protein oligopeptide can be directly eaten as a health product, a functional food additive or a nutritional food and simultaneouslycan be safely used as a cosmetic additive.

The invention relates to an electrodialysis electrolyte separating and concentrating device used for ion electrolyte separating and concentrating. The device comprises a first electrode compartment (1) and a second electrode compartment (5), wherein at least one group of electrolyte separating and concentrating units is arranged between the first electrode compartment (1) and the second electrodecompartment (5); each group of the electrolyte separating and concentrating units comprises the following three compartments which are sequentially arranged: a desalination compartment (2), a first concentrating compartment (3) and a second concentrating compartment (4); the desalination compartment (2) is spaced with the adjacent first concentrating compartment (3) through an II type ion exchangefilm (10); and the first concentrating compartment (3) is spaced from the adjacent second concentrating compartment (4) through a nanofiltration membrane (11). The electrodialysis electrolyte separating and concentrating device can simultaneously achieve the purposes of selectively separating and concentrating monovalent ions and divalent ions as well as deflating the original solution; and moreover, stability of the ion exchange membranes is improved, and the problem that conventional monovalent ion exchange membrane ions cannot concentrate divalent ions, and ion flux and selectivity permeability cannot be simultaneously achieved.

The invention relates to a container (1) for containing matter, especially a spectacle case. It comprises two opposite semi-frames (2, 3) to form hollow main body; said semi-frames (2, 3) via transverse connector (12) are connected while they can be folded to the first and second close positions; the first and second longitudinal edge couple (4, 6) forms the hinge (7) and the close edges according to the positions of semi-frames (2, 3), while the close device (14) is on two longitudinal edge couple; the close device (14) is formed by two shape-matched close devices (13a, 13b; 14a, 14b).

The invention discloses a sorting device capable of removing metal impurities, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a wallboard, two first rotating shafts are plugged into the front of the wallboard, and the first rotating shaft The surface is fixedly connected with a first transmission wheel, and the two first transmission wheels are connected through a composite belt, and the composite belt is composed of a first belt and a second belt, and the second belt is located on the inner side of the first belt. A magnet strip is fixedly connected to the surface of the second belt, and two second rotating shafts are also fixedly connected to the front of the wallboard. The invention makes the device work, and the grain material is discharged through the feeding mechanism and the upper surface of the compound belt, and the grain will be transported along with the transmission of the compound belt. When the grain moves to one side of the compound belt, the grain will be under the action of gravity It is dumped into the first storage chamber, and the metal impurities will be attached to the lower surface of the composite belt under the adsorption of the magnet strips and continue to be transported forward.