56 results about "Active mixing" patented technology

A method and apparatus for manufacturing a graded-index plastics optical fiber of continuously varying index profile, starting from a particular polymer P and a particular compound M1, the method including the steps of: preparing two compositions of different refractive index, allowing the compositions to diffuse one into the other, and spinning the compositions so as to obtain the fiber, wherein, prior to extrusion, the two compositions are subjected to active mixing, and extrusion of the fiber is followed by curing.

Active mixing by magnetic stirring is demonstrated inside a picoliter-size liquid droplet. Magnetic microspheres are added to the droplet, which form aligned chains under the influence of a homogeneous magnetic field. When the magnetic field is rotated, the chains also rotate synchronously. Viscous interaction between the particle-chains and the liquid induces advective motion inside the droplet thereby enhancing mixing which is otherwise diffusion-limited. The concept can be effectively used to create a lab-in-a-droplet for MEMS (Micro-Electrical-Mechanical Systems) and Bio-MEMS applications.

The invention discloses a multi-material composite 3D printer and a working method and application of the multi-material composite 3D printer. The multi-material composite 3D printer comprises a base which is provided with a working table and a rack, the working table is provided with a printing bed for supporting a printed object, the rack is at least fixedly provided with a first spray head, a second spray head and a third spray head, and the first spray head, the second spray head and the third spray head are all located above the printed object; the first spray head is a multi-material active mixing spray head, the second spray head comprises a micro injector material barrel and an electric conduction spray nozzle arranged at the lower portion of the micro injector material barrel, and the third spray head at least comprises two fusion deposition spray heads, wherein one fusion deposition spray head is used for printing structural materials, and the other fusion deposition spray head is used for printing supporting materials; and electric conduction spray nozzles of the first spray head and the second spray head are both connected with the positive pole of a power source, and the printing bed is connected with the negative pole of the power source. Multi-material and multi-scale complex structure integrated manufacturing is achieved, the structural materials and functional materials are integrally printed, and the technical bottleneck for limiting integrated manufacturing of materials, structures and devices is broken through.

A combination mass transfer and pump apparatus, which in a single step actively mixes a first mass and a second mass and simultaneously pumps one of the first mass and the second mass through the apparatus. The combination mass transfer and pump apparatus substantially comprises a housing and at least one distributor element having a plurality of selectively fluid-permeable membrane elements wherein the at least one distributor element is agitated within the second mass such that the first mass diffuses across the selectively fluid-permeable membrane elements, mixing with the second mass, and in the same step the second mass is pumped through the housing.

The invention discloses an active bauxite dressing tailing micro-powder, a preparation method thereof, and an application thereof. The invention belongs to the field of waste recycling. The active micro-powder is prepared through the steps that: 70 to 98wt% of bauxite dressing tailing and 2 to 30wt% of fly ash are mixed, or 92 to 98 wt% of bauxite dressing tailing and 2 to 8wt% of lime are mixed;the mixture are calcined at a temperature of 700 to 900 DEG C, and is grinded, such that a finished product is obtained. The micro-powder also can be prepared from grinded material of a mixture of calcined bauxite dressing tailing and lime. The micro-powder can be used as a preparation raw material of alkali-activated cement, or high active mixing material of composite portland cement. According to the invention, an activation treatment is carried out upon bauxite dressing tailing, which is presently a waste. The method assists in solving discharging and storing problems of bauxite dressing tailing, and provides a precondition for utilizing the resource in the field of cementing materials.

The invention discloses a method using electrolytic manganese slag to manufacture an active mixed material. According to the preparation method, an activator and a reducing agent are added into electrolytic manganese slag according to a certain ratio so as to carry out physical and chemical reactions at a high temperature; the reaction products are calcined, and finally the calcined clinker is cooled to obtain the active mixed material. The active mixed material has the properties of volcanic ash, and can be used as the active mixing material in cement industry and composite blending material in commercial concrete industry. A large amount of acid leached slag discharged by electrolytic manganese plants can be used to produce the active mixed material, the environmental pollution generated by harmful components in electrolytic manganese slag is radically eliminated, the clean production of electrolytic manganese can be realized, the pollution is comprehensively controlled, and high economic benefit and environment protection benefit are generated.

The invention discloses foam concrete capable of pumping and chemically foaming and an on-site construction production method. The foam concrete comprises the following materials in parts by weight: 75-500 parts of concrete, 20-120 parts of an active mixing material, 40-300 parts of water, 15-50 parts of an adjusting agent, 30-90 parts of a foaming agent and 2-10 parts of a micro foam agent. The volume weight of the prepared foam concrete is 100-600kg/M<3>; the heat conductivity coefficient of the foam concrete is as low as 0.020W/M.DEG C; the strength of the foam concrete can reach 5Mpa. By virtue of the production method, the advantages of cast-in-situ physical foaming and chemical foaming make an organic combination to form a novel construction method; the production method is relatively high in production efficiency, flexible to operate and relatively wide in application; the foam concrete can be made into high-strength product materials with different shapes; the heat-insulating construction of buildings can be effectively completed with high efficiency and low cost.

The invention discloses a concrete high-strength admixture, a cement mixture and a non-autoclaved ultra-high strength concrete product. The concrete high-strength admixture comprises the following raw materials by weight percentage: 20-80% of gypsum, 10-78% of an active mixing material, and 0.1-30% of an inorganic exciting agent. The concrete high-strength admixture has the advantage that high strength of the concrete product can be achieved by normal-pressure maintenance.

The invention discloses a vehicle and a seat suspension based on active and semi-active mixed control. The seat suspension comprises a fixing baseplate, a seat mounting plate, a scissor-type support frame, an actuator and a controller. The fixing baseplate is arranged on a vehicle chassis. A vehicle seat is mounted on the seat mounting plate. The scissor-type support frame is arranged between thefixing baseplate and the seat mounting plate. After the fixing baseplate is vibrated and/or the vehicle seat is loaded with mass, the scissor-type support frame can extend and retract to change the vertical distance between the fixing baseplate and the seat mounting plate. The actuator is used for driving the scissor-type support frame to move. The controller is used for controlling the actuator to move through active control or semi-active control so as to damp the vehicle. The seat suspension has the advantages that the scissor-type support frame is arranged between the fixing baseplate andthe seat mounting plate, the actuator is connected with the scissor-type support frame, the controller controls the actuator to move through active control or semi-active control to damp the vehicle,and power consumption of the active control can be reduced.

The invention relates to a supersonic mixing reinforcing device, which comprises a mixing reinforcing plate arranged between the two supersonic flow channels of the two supersonic air flows, wherein the upper side plate surface of the mixing reinforcing plate is provided with a concave cavity recessed from the upper side plate surface to the lower side plate surface; a section of the mixing reinforcing plate after the concave cavity and up to the end of the mixing reinforcing plate is called an oscillation plate; a mixing reinforcing plate, wherein a first supersonic flow channel for flowing afirst supersonic air flow is arranged above the mixing reinforcing plate, and a second supersonic flow channel for passing through a second supersonic air flow is arranged below the mixing reinforcing plate; the first supersonic air flow flows over the mixing reinforcing plate along the length direction of the mixing reinforcing plate to the tail end of the mixing reinforcing plate, and the second supersonic air flow below the mixing reinforcing plate flows along the length direction of the mixing reinforcing plate to the tail end of the mixing reinforcing plate, the first supersonic air flowand the second supersonic air flow realize enhanced mixing outside the tail end of the mixing reinforcing plate. By means of the invention, the energy of the supersonic air flow is utilized to achieve the effect of active mixing enhancement.

The invention relates to an energy-saving compact vacuum extruder, which comprises speed reducer (1), aerated clutch (2), block coupler (3), extruding axle (19), transmission gears (5, 6, 15), mixing axles (4, 26), Haf mixing blade (8), vacuum room (11), compressing plate (12), extruding cylinder (13), head (14), extruding mold (21), upper, middle, and lower boxes (22, 23, 25), machine base (24), and material hopper (7). The invention is characterized in that: the output axle wheel (17) of power machine (18) via transmission belt (16) drives the aerated clutch belt wheel (2) at the input of speed reducer (1); the output of speed reducer via block coupler (3) rotates the extruding axle (19); the active gear (15) at the back extruding axle makes the inactive gear (5) to rotate the active mixing axle (4), and makes the gear (6) axial with active gear (15) to rotate the inactive mixing axle (26). The invention can reduce mechanical friction and save enegy.

The invention discloses a new earth pressure balance shield machine and a working method thereof. The shield machine comprises a cutter head, a front shield, a middle shield, a miter gate, a tail shield, an assembling machine, a main drive and a screw conveyor. A front shield partition board is arranged between the front shield and the middle shield, front shield space is divided into two parts byinstalling a middle partition board in the front shield, the front is a mud chamber, and the rear is an air cushion chamber; the lower part of the middle partition board is not closed; the cutter head is connected with a big gear ring of the main drive by a support arm; a first gate, an air inlet and an overflow port are arranged on the front shield diaphragm board, and a second gate is arrangedon the miter gate; a passage gate and a passive mixing rod are arranged on the middle partition board; an active mixing rod is installed behind the cutter head; the first gate is arranged on the upperpart of the front shield partition board, and the lower part of the front shield partition board is provided with a slag conveying port. The new earth pressure balance shield machine is provided withthe mud chamber and the air cushion chamber, and a mud water balance shield play to the advantage. The shield machine further provides mixing rods, residual soil entering the mud chamber of the shield machine is stirred through the mixing rods, and flow plasticity of the residual soil is further increased.

Fluid blenders and blending methods are provided, the blending apparatus including components accommodating both passive and/or active mixing. The apparatus includes a main body and closure connectable to define a chamber having a fluid outlet. A valved fluid inlet channel opens into the chamber and is tangentially oriented relative to a peripheral wall thereof so that fluid entering the chamber has a primary vortical flow circulation direction. A fluid injection channel opens to the inlet channel at an acute angle relative to direction of fluid flow through the inlet channel. A plurality of barriers are arrayed in the chamber to define interconnected inner and outer chamber portions. An impeller is rotatably mounted at the inner chamber portion and includes a plurality of blades oriented to urge flow from the inner chamber portion to the outer chamber portion.

The invention discloses a pulse fiber laser of fiber bragg grating modulation Q. The pulse fiber laser comprises a fixed wavelength fiber bragg grating (101), a tunable fiber bragg grating (102), an active mixing double-clad fiber (103), a pumping semiconductor laser (104), a fiber pumping photosynthetic bundle device (105), a pumping drive circuit (106), a piezoelectric ceramic or magnetostriction drive circuit (107), a main control circuit (108) and an interface circuit (109), and is characterized in that the tunable fiber bragg grating (102) is connected with the external drive circuit (107), the tunable fiber bragg grating (102) is compressed or stretched so as to change a reflection central wavelength under the action the external drive circuit (107), and the reflection central wavelength of the tunable fiber bragg grating (102) and the wavelength of the other fixed wavelength fiber bragg grating (101) are overlapped and mismatched, thus the pulse fiber laser sends out periodic pulse laser output. The pulse fiber laser provided by the invention has the advantages that the full one-dimensional fiber of an optical element is realized, the coupling loss is reduced, and the system stability is improved.

In an exemplary embodiment, a fully monolithic active hybrid architecture can be configured to replace a ring hybrid, magic tee, branchline coupler, or 180° hybrid by providing similar functionality in an integrated monolithic solution. Exemplary embodiments of the active hybrids combine active implementations of power splitters, power combiners, and phase shifting elements in a novel fashion allowing for ultra-compact size and broadband performance. In an exemplary embodiment, the active hybrid replaces the typical hybrid couplers with active splitters and active combiners. Similarly, the delay lines and amplitude adjustment elements are replaced by active vector generators. Vector generators are magnitude and phase control circuits. The active hybrid results in certain advantages including being size independent of the operating frequency, wide frequency range of operation, and RF signals undergo a neutral or slight positive power gain, rather than power losses that occur in the passive prior art systems.

The invention discloses a vehicle applied power supply system and an active mixing rectifier and a control method. The vehicle applied power supply system comprises a motor, excitation coils, a voltage regulator and a rectifier. The rectifier is an active mixing rectifier which consists of a three-phase bridge type rectifier and a rectifier control circuit. The upper bridge arm of the three-phase type rectifier adopts diodes to rectify while the lower bridge arm adopts a MOSFET tube to rectify. When a certain phase voltage of the motor is greater than the voltage outputted by the rectifier, the rectification diode corresponding to the phase turns on; when a certain phase voltage of the motor is smaller than the voltage outputted by the rectifier, the rectification diode corresponding to the phase turns off. The rectifier control circuit receives the signal outputted from the phase wires of the motor and serves as the driving signal provided to the grating electrode of the MOSFET tube. When a certain phase voltage of the motor is smaller than the ground voltage, the rectifier control circuit provides a control signal to control the MOSFET tube corresponding to the phase to be on; otherwise, the MOSFET tube corresponding to the phase is off. The invention can be applied to a variety of vehicle applied power supply systems.

The invention discloses a preparation process of high-compression-resistance light weight foam concrete. The preparation process comprises the following steps: preparing active mixing materials: uniformly mixing river sand, glass fiber, a naphthalenesulfonate water reducing agent and active silica; preparing slurry: controlling by an automatic foamed cement equipment mainframe, and respectively injecting water, cement, an active mixing material and a propylene organic thickener according to the proportion through a water pump and a material injector in a double-shaft mixer in a mixing state, wherein the water adding frequency, the material injecting frequency and the power input frequency of a stirring engine are controlled within the range of 0-70 HZ; preparing foam with a foaming agent; controlling by the automatic foamed cement equipment mainframe, and preparing foam with the foaming agent through a plunger pump and an air compressor; mixing and pouring the prepared mixed slurry in a moulding die. Concrete prepared by the preparation process has the advantages of being better in sound insulation and heat insulation effects, and excellent in compression resistance and the like.

The invention discloses a double-shaft paddle mixer for feed production, which comprises a base, a driving mixing paddle, a material injection through groove, a mixing chamber and a control panel, wherein the mixing chamber is fixed at the central position of the top end of the base; the two inner side walls of the mixing chamber are both provided with a linking chamber; the bottom end inside thelinking chamber is hinged with a driven gear; the inside of the linking chamber above the driven gear is hinged with a driving gear; the driving gear and the driven gear are meshed with each other; one end inside the mixing chamber is provided with the driving mixing paddle, both ends of the driving mixing paddle are fixedly connected with the outer wall of the driving gear through a connecting rod, and a driven mixing paddle is arranged inside the mixing chamber below the driving mixing paddle, and both ends of the driven mixing paddle are fixedly connected with the outer wall of the driven gear through the connecting rod. The double-shaft paddle mixer not only improves the mixing effect when the mixer is used, avoids the precipitation phenomenon at the bottom of the mixing chamber when the mixer is used, but also improves the convenience when the mixer is used.

The invention provides a KIDs detector noise test circuit based on an active quadrature mixer and a test method thereof. The test circuit is characterized in that the test circuit comprises a frequency synthesis source, a directional coupler, a KIDs detector readout circuit module, an adjustable phase shifter, an active mixing circuit module, a filter circuit module, a data acquisition card, a control computer and the like. The test circuit takes a broadband Gilbert double-balance active quadrature mixer circuit structure as a core module, can complete noise test work on KIDs detector chips, and has excellent amplitude/phase balance degree and port isolation degree. The parasitic direct current bias voltage generated by a frequency output port is weak, the measurement is accurate, the mixer does not need to be separately calibrated, the measurement process is simplified, and the power level of the frequency synthesis source is reduced at the same time.

Dual-lumen catheters for actively mixing two or more fluid components such that they react to form a more viscous pre-polymer formulation at or near the distal tip of the catheter are describe herein. The mixing dynamics within the dual-lumen catheter may be varied depending on the relative viscosity of each individual fluid component, as well as the viscosity of the resulting pre-polymer formulation.

The invention relates to a fly ash modification agent and a modified low-quality fly ash active mixing material thereof. Firstly, 75 to 80 parts of red mud, 20 to 25 parts of phosphogypsum and 0.1 to 0.3 part of grinding aiding enhancing ingredients are uniformly mixed; then, grinding is performed until the surface area is not smaller than 6000 cm<2>/g to obtain the fly ash modification agent; the obtained fly ash modification agent is sufficiently and uniformly mixed with grade III fly ash; then, the modified low-quality fly ash active mixing material is obtained. Through being metered in parts by mass of all raw materials, the stage III fly ash accounts for 75 to 81 parts, and the fly ash modification agent accounts for 19 to 25 parts. The fly ash modification agent and the modified low-quality fly ash active mixing material solve the problem of application of low-quality stage III fly ash to C30 or higher premixed reinforced concrete. In addition, the industrial waste slag of the red mud, the phosphogypsum and the like can be consumed; 100 weight percent of stage II fly ash can be replaced in an equal mass in concrete; the workability of the concrete and the anti-seeping performance of the concrete can be improved.