44results about How to "Meet separation needs" patented technology

The invention proposes a ultrahigh-speed magnetic suspension solid-liquid separation device. A stator of a disc motor is fixedly connected to the center position of the top of a shell; the top of the shell is fixedly connected with an axial electromagnetic coil; the side surface of the shell is fixedly connected with a side electromagnetic coil; a first opening is formed in the bottom of the shell; a rotating bin is positioned in the shell; the center position at the top of the rotating bin is fixedly connected with a rotor of the disc motor; the top of the rotating bin is fixedly connected with a top permanent magnet having a magnetic field effect with the axial electromagnetic coil; the side surface of the rotating bin is fixedly connected with a side permanent magnet having a magnetic field effect with the side electromagnetic coil; a second opening is formed in the bottom of the rotating bin; and a nozzle is positioned in the rotating bin. The ultrahigh-speed magnetic suspension solid-liquid separation device has the beneficial effects of high separation rotating speed, easy adjustment of the separation rotating speed, prevention of the temperature rise, no solution pollution, no motor corrosion, simple procedures, higher efficiency and lower cost.

The invention discloses a bonding type chromatographic column stationary phase and a preparation method thereof. Aryl bridged silsesquioxane is modified to the surface of a carrier silica gel by means of chemical bonding, the obtained chromatographic column stationary phase has a high specific surface area and narrow particle size distribution. The process route is simple, the raw materials are cheap and easily available, and the operation is convenient. Also, the chromatographic column stationary phase provided by the invention has a good separation effect on aryl compounds, and by changing different organic groups, different separation demands can be met.

The invention belongs to the technical field of membrane separation, and relates to a nanocellulose layer-by-layer self-assembled membrane and a preparation method thereof. Compared with a traditional polyelectrolyte layer-by-layer self-assembled membrane, the nanocellulose membrane material with a rigid separation layer, high porosity and a super-hydrophilic surface is constructed by taking nano-crystalline cellulose as a membrane preparation element through a layer-by-layer self-assembly method, so that the preparation of a nanofiltration membrane with excellent permeability, pollution resistance and long-term stability is facilitated, and the high performance of the nanofiltration membrane is realized.

The invention provides a simulated moving bed device and a method for separating a multi-component dihydric alcohol.The simulated moving bed device comprises at least four chromatographic columns filled with adsorbents, each chromatographic column is provided with at least two feeding channels and at least three discharging channels, and the chromatographic columns are connected in series throughconnecting channels; and valves for controlling opening and closing of the channels are arranged on the feeding channels and the discharging channels of the chromatographic columns and on connecting channels between adjacent chromatographic columns. The method comprises the following steps: introducing the multi-component dihydric alcohol into the chromatographic columns of the simulated moving bed device, then introducing a resolving agent for elution, and enabling extracted solutions of different components to flow out from different discharging channels of the chromatographic columns respectively, thereby separating the multi-component dihydric alcohol. According to the simulated moving bed device provided by the invention, different modes can be autonomously selected for separation operation through switching of a pump and the valves, so that different separation requirements are met.

The invention provides a modular multistage chromatography column as well as a sampling method and a separation method thereof. The modular multistage chromatography column comprises a column top, at least a section of column body and a column bottom which are embedded from top to bottom, a column top sampling hole penetrates through the embedding surface of the column top, an upper sampling hole penetrates through the embedding surface of the upper end of a column body, a lower sampling hole penetrates through the embedding surface of the lower end of the column body, and the lower part of the column body is provided with a sand core, a bottom column sampling hole penetrates through the embedding surface of the column bottom. Compared with the prior art, the modular multistage chromatography column provided by the invention has the following beneficial effects: in the process of separation and purification, the column can be sampled in real time to monitor the separation situation in the column and realize the dynamic monitoring; the number of the column body can be flexibly selected to increase or decrease according to requirements. When the different components are separated in the column body, the column body with different components can be separated, respectively combined with the column top and the column bottom, and assembled into multistage chromatography column for use. The modular multistage chromatography column has the characteristics of high practicability and high flexibility, and wide application ranges.

The invention discloses a separating and unlocking mechanism based on a rotating electromagnet and a separating and unlocking method.The separating and unlocking mechanism comprises an upper cylinder, a lower cylinder, a locking device, a rotating device, a pushing device, a driving device, a limiting pin, a loading nut and a microswitch, the lower cylinder is sleeved with the upper cylinder, the rotating device is installed on the driving device and can rotate along with the driving device, and the pushing device is installed on the lower cylinder; the locking device transversely penetrates through the upper cylinder and the lower cylinder and abuts against the rotating device, the upper cylinder and the lower cylinder are locked together, when the driving device receives a satellite separation signal, the rotating device is driven by the driving device to rotate from the abutting position to the disengaging position, abutting between the rotating device and the locking device is relieved, the locking device is disengaged from the upper cylinder, and the upper cylinder and the lower cylinder are locked together. The upper cylinder and the lower cylinder are unlocked, the upper cylinder is ejected out under the action of the pushing device, and satellite-rocket separation is completed. The problems that a satellite-rocket separation mechanism is complex in structure, high in cost, large in envelope size, heavy in weight and the like are solved.

The invention belongs to the technical field of logistics transportation, and in particular relates to an adjustable logistic turnover box separating device. The adjustable logistic turnover box separating device comprises a base, wherein mounting seats are slidably connected to the left and right sides of the top of the base; a movable groove is formed in the top of an inner cavity of each mounting seat; a supporting rod is hinged to the bottom of the inner cavity of the movable groove through a hinge seat; a lifting air cylinder is fixedly mounted on the top of the supporting rod; an ejectorrod is mounted at the output end on the top of the lifting air cylinder; a buckle plate is mounted on the top of the ejector rod; a double-end motor is mounted in the central position of the top of the base; a left screw and a right screw are separately mounted at the power output ends on the left and right sides of the double-end motor, so that logistics turnover boxes can be separated quickly.The height, angle and horizontal displacement of the separating device can be adjusted to meet the separating demand on logistics turnover boxes different in size and height, and the separating deviceis wide in application range, convenient to use and high in separating speed.

The invention discloses a rain sound signal noise reduction processing method which comprises the steps that real-time sound signals during rainfall are collected, and the real-time sound signals at least comprise the real-time rain sound signals; and a rain-sound separation subsystem is used for removing a real-time first ambient sound signal and a real-time second ambient sound signal from the mixed sound signal, and a rain-sound signal which does not contain the ambient sound signal is seperated from the real-time sound signal, wherein the ambient sound signal comprises a first ambient sound signal and a second ambient sound signal. According to the method, a fixed point algorithm (Fast ICA) algorithm in an independent component analysis (ICA) algorithm is adopted; the rain-sound separation subsystem is established, separation matrix parameters are optimized, real-time sound signals during rainfall are imported into the rain-sound separation subsystem, the environmental sound signals are removed, relatively pure rain-sound signals are exported, and the rainfall level is judged according to the frequency spectrum of the exported rain-sound signals.

The invention provides a microporous carbon fiber material prepared from polyacrylonitrile and used for high-selectivity separation of various micromolecular gases, and a preparation method and application thereof. The preparation method comprises the following steps: (1) preparation of polyacrylonitrile fibers: uniformly stirring polyacrylonitrile and N, N-dimethylformamide at 30-60 DEG C, adding a metal salt activator, uniformly stirring, then carrying out electrostatic spinning, and drying to obtain polymer fibers; (2) cross-linking the fibers: dropwise adding a cross-linking agent into the polymer fibers obtained in the step (1) while stirring at 80-140 DEG C to obtain cross-linked fibers; and (3) carbonization and activation: placing the cross-linked fiber obtained in the step (2) in an inert atmosphere, and carrying out a high-temperature activation reaction at 600-900 DEG C to obtain the microporous carbon fiber material. The microporous carbon fiber material prepared by the preparation method disclosed by the invention has excellent performance in a system for separating multiple small molecule gases, and has a good industrial application prospect.

The invention relates to a fresh chestnut separator in the field of agriculture, rural areas and farmers. The separator is characterized in that a flexible separation channel technical scheme of an Archimedes screw (theory) principle is applied for the first time in a fresh chestnut separation technology; the cross-sectional area of a screw channel from an inlet to an outlet is reduced gradually in a separation process; the separator has an appropriate elastic buffer function. The separator is further characterized in that an exterior of a rotor of a chestnut ball separation major structure simulates 'lifting' and 'spreading' functions of ten fingers of a human body, and the technical scheme of manufacturing a multi-circle screw separation claw structure by an elastic wear-proof engineering material is adopted. The separator is further characterized in that the ball separation major structure is larger than a semicircular spindle, and the technical scheme of a whole universal elastic floating bearing is adopted. The technical schemes achieve multiple technical benefits of full functions and high separation efficiency of quick separation of fresh (white) chestnut kernels from green chestnut balls in an early mature period and the quick separation of red chestnut kernels from the chestnut balls subjected to artificial ripening by the traditional manner for a period of time, and effective protection of appearance quality of the chestnut kernels.

The invention discloses a hydraulic operating mechanism, an ECU, a clutch system and a car. The hydraulic operating mechanism comprises a clutch separation assistant cylinder, a control valve and a switch device. The control valve is provided with an oil inlet, an oil outlet and an oil discharging hole, the oil inlet communicates with an engine oil pump, and the oil outlet communicates with the clutch separation assistant cylinder. The switch device is used for controlling the oil outlet and the oil inlet of the control valve to communicate through the ECU so that the clutch separation assistant cylinder can be filled with oil, and controlling the oil outlet and the oil discharging hole to communicate so that oil can be discharged from the clutch separation assistant cylinder. The hydraulic operating mechanism controls a clutch to be disengaged and engaged through the switch device in cooperation with the control valve. In addition, during gear shifting each time, a driver can control disengagement of the clutch by operating the switch device, foot action is avoided, the gear shifting operation is convenient, and the labor intensity of the driver is relieved.

A vibration spring-pulling mechanism includes a horizontally arranged bracket, a conveyor belt used for conveying springs is installed on the bracket, an electro-vibration mechanism for dispersing spring vibration, a spring-pulling mechanism for pulling out the springs one by one and a spring clamping mechanism for preventing one spring from being pulled out when the adjacent spring is pulled out.The tightly accumulated springs enters from the front end of the conveyor belt, the electro-vibration mechanism is arranged right above the conveyor belt and transmits vertical vibration ro the springs, the spring clamping mechanism is arranged on the upper portion of the tail end of the conveyor belt, the spring-pulling mechanism is located on the rear side of the spring clamping mechanism, thespring clamping mechanism and the spring-pulling mechanism vertically stretch into the springs, the spring-pulling mechanism horizontally moves so as to pull the springs one by one, and actions of theconveyor belt, the electro-vibration mechanism, the spring-pulling mechanism and the spring clamping mechanism are all controlled by a control system. The mechanism can effectively sort out the tightly accumulated springs one by one, the whole process does not need manual participation, the spring separation efficiency is high, the production automation level of a spring mattress is improved, theoperation intensity in the production process is reduced, and the production efficiency is improved.