32results about How to "Increase the number of flips" patented technology

The invention provides a multiferroic Bi1-xRExFe0.97-yMn0.03TMyO3 / CoFe2O4 composite film and a preparation method thereof. The composite film comprises a Bi1-xRExFe0.97-yMn0.03TMyO3 crystalline state film and a CoFe2O4 crystalline state film. The preparation method comprises the following steps of respectively preparing Bi1-xRExFe0.97-yMn0.03TMyO3 precursor solution and CoFe2O4 precursor solution; spin coating on a substrate to prepare a plurality of layers of CoFe2O4 films, spin coating on the CoFe2O4 films to prepare a plurality of layers of Bi1-xRExFe0.97-yMn0.03TMyO3 films and accordingly obtaining a target product. According to the multiferroic Bi1-xRExFe0.97-yMn0.03TMyO3 / CoFe2O4 composite film and the preparation method thereof, the device requirement is simple, the prepared film is good in homogeneity, the doping content is easy to control, the ferroelectric property and the ferromagnetic property of the film are improved to a large extent, and the film is high in residual polarization value and residual polarization value.

The invention discloses a furnace body of an activated carbon activation furnace, and relates to the field of activated carbon production devices. The furnace body can improve the safety of the activated carbon production process to a certain degree, can stably run for a long time, and can greatly improve the quality and yield of produced activated carbon. The furnace body is internally provided with a combustion channel communicated with the interior of the furnace body. Air is introduced in the combustion chamber. The interior of the furnace body is divided into at least two material channels. The material channels are arranged in the length direction of the furnace body. Vapor is introduced in each material channel. The furnace body comprises an outer cylinder. At least two branch warehouse supporting pieces are arranged in the circumferential direction of the inner wall of the outer cylinder and form the combustion chamber. One material channel is formed among two adjacent branch warehouse supporting pieces, the inner wall of the outer cylinder and the outer wall of the combustion chamber. The furnace body is mainly used for producing activated carbon.

The invention discloses a rough polishing process for reducing the overall flatness of the gallium arsenide double-polished sheet, which comprises the following steps: after a rough polishing solutionis prepared, uniformly placing epoxy resin planetary wheels on a polishing disk surface; then, upwards placing the front side of the gallium arsenide double-polished sheet with the thickness deviation of 3 [mu] m in the hole of the epoxy resin planetary wheel; executing a self-checking program; checking the self-spinning conditions of the epoxy resin planetary wheels and the gallium arsenide double-polished sheet; after the self-checking program is executed, descending the upper polishing disc to finish execution of the rough polishing program for the first time; after the first rough polishing program is finished, turning over the gallium arsenide double-polished sheet; placing the back side of the double-polished sheet upwards and executing the self-checking program; then, executing therough polishing program for the second time; after ten times of operation are repeated, taking out the gallium arsenide double-polished sheet from the epoxy resin planetary wheels; and putting into awhite basket for cleaning and spin-drying. According to the embodiment of the invention, the overall flatness of the gallium arsenide double-polished sheet is effectively improved.

The embodiment of the invention discloses a double-cylindered magnetite fine powder grade improver, comprising a driving device, an outer cylinder, a discharging device, a support frame and an inner cylinder, wherein the driving device comprises a driving motor, a transmission shaft and a bearing bracket; the upper end surface of the outer cylinder is provided with an annular water distributor; the upper end of the annular water distributor is provided with an annular material distributor; and the side surfaces of the annular distributor and the annular water distributor are provided with a material inlet and a water inlet respectively. A clearance space between the outer cylinder and the inner cylinder of the double-cylindered structure increases the contact area between the magnetite material and the clean water and increases the washing speed of the slurry. A plurality of magnets are annularly arranged side by side to define a cylindrical inner cylinder permanent magnet mechanism soas to increase the magnetic separation area and increase the number of mineral rubbing and overturning times. The outer cylinder is provided therein with a scraper arranged in a spiral shape to scrape off the fine iron powder in the outer cylinder downward. The water rinses the fine iron powder from the bottom to the top to achieve efficient wet magnetic separation. The double-cylindered magnetite fine powder grade improver improves work efficiency and is easy to operate.

The invention provides a BLSFMC / CMFO film with a resistance switch effect and a preparation method thereof. The BLSFMC / CMFO film comprises an upper layer film and a bottom layer film which are composited together; a chemical formula of the bottom layer film is Co1-xMnxFe2O4, the bottom layer film is a distorted cubic inverse spinel structure, and a space group is Fd3m; and a chemical formula of the upper layer film is Bi0.79La0.19Sr0.03Fe0.94Mn0.04Co0.0203, the upper layer film is a distorted rhombohedral perovskite structure, and a space group is R3c, wherein x is equal to 0 to 0.8. The BLSFMC / CMFO film is prepared by adopting a sol-gel method and a layer-by-layer annealing process. By virtue of the doping for the BiFeO3 film, the ferroelectric performance is improved; and the BiFeO3 filmis composited with a CoFe2O4 magnetic layer, so that the resistance switch effect of the ferroelectric polarization-regulated ferroelectric / ferromagnetic composite film can be realized.

The invention provides an improved structure of a blender in a polymerization kettle, which is capable of increasing times for overturning materials, reducing a temperature difference of the materials in the kettle in the process of blending, increasing the blending efficiency, avoiding the generation of gel and prolonging the cycle of cleaning the kettle. The improved structure comprises a reaction kettle body, a blending shaft and the blender; the blender comprises a pitched blade type blender and a wide blade type blender which is located on a lower seal head; the blender is fixed on the blending shaft, wherein blades of the pitched blade type blender respectively include an inner semi-blade and an outer semi-blade, and an included angle is kept between the inner semi-blade and the outer semi-blade after the inner semi-blade and the outer semi-blade are screwed at a connection part.

The invention provides a laminated BiFe(0.97-x)Mn0.03TMxO3 / CoFe2O4 multiferroic composite film and a preparation method thereof. The composite film comprises a BiFe(0.97-x)Mn0.03TMxO3 / CoFe2O4 crystallized film and a CoFe2O4 crystallized film which are compounded together. The preparation method comprises the following steps of firstly, preparing a BiFe(0.97-x)Mn0.03TMxO3 / CoFe2O4 precursor solution and a CoFe2O4 precursor solution respectively; and then carrying out spin coating on a substrate to prepare a multi-layer CoFe2O4 film, and then carrying out spin coating on the CoFe2O4 film so as to prepare a multi-layer BiFe(0.97-x)Mn0.03TMxO3 / CoFe2O4 film, thereby obtaining the target product. According to the invention, the equipment requirement is simple; the prepared film is good in uniformity; chemical components are accurate and controllable; the doped amount is easy to control; the ferroelectric properties and the ferromagnetic property of a film are improved greatly, so that the film has high residual polarization value and a residual magnetization value.

The invention discloses a B-site Mn and Ni co-doped high-remanent-polarization BiFeO3 film and a preparation method thereof. The preparation method comprises the following steps: dissolving bismuth nitrate, ferric nitrate, manganese acetate and nickel acetate according to a molar ratio of 1.05:[(0.92-0.98)-x]:(0.02-0.08):x in a mixed solution of ethylene glycol monomethyl ether and acetic anhydride, uniformly stirring to obtain a BiFeO3 precursor solution, wherein the total metal ion concentration in the BiFeO3 precursor solution is 0.1-0.5mol / L, and x is equal to 0.01 to 0.03; spin coating the BiFeO3 precursor solution on a FTO / glass substrate to prepare a wet film, baking the wet film to obtain a dried film, annealing at the temperature of 550 DEG C for 8-13 minutes, thus obtaining a crystalline state BiFeO3 film; repeatedly operating until the BiFeO3 film reaches the needed thickness after the crystalline state BiFeO3 film is cooled, thus obtaining the B-site Mn and Ni co-doped high-remanent polarization BiFeO3 film. According to the method, a sol-gel process is adopted, the equipment requirement is simple, the method is suitable for preparing films on large surfaces and out-of-shape surfaces, the chemical constituents are accurately controlled, and the crystal structure is regulated through co-doping, so that the ferroelectric properties of the film are greatly improved.

The invention provides a method for preparing a BiFe1-xCrxO3 ferroelectric film by using a sol-gel method. The method comprises the following steps of: dissolving bismuth nitrate, ferric nitrate and chromic nitrate according to a molar ratio of 1.05: (1-x): x into a mixed solution containing ethylene glycol monomethyl ether, acetic oxide and cholamine, and magnetically stirring to obtain a stable BiFe1-xCrxO3 precursor with the metal ion concentration of 0.003-0.3mol / L, wherein x is equal to 0.00-0.03, and the volume ratio of the ethylene glycol monomethyl ether to the acetic oxide to the cholamine is 14: 5: 1. A film is prepared by spin-coating the BiFe1-xCrxO3 precursor on an FTO (Fluorine-doped Tin Oxide) / glass substrate by using a spin-coating method, and a crystalline BiFe1-xCrxO3 film is obtained by adopting a layer-by-layer annealing process. The method disclosed by the invention has simple requirements on equipment, and experimental conditions are easy to achieve; the prepared film is better in uniformity, and the doping amount is easy to control; and the ferroelectric property of the BiFeO3 film is improved through B-bit Cr doping.

The invention provides a BLSFMC / CMFO film with a resistance switching effect and a preparation method thereof, comprising an upper film and a bottom film compounded together; the chemical formula of the bottom film is Co 1‑ x mn x Fe 2 o 4 , which is a twisted cubic inverse spinel structure, the space group is Fd3m; the chemical formula of the upper layer is Bi 0.79 La 0.18 Sr 0.03 Fe 0.94 mn 0.04 co 0.02 o 3 , which is a distorted rhombohedral perovskite structure, space group R3c; wherein, x=0˜0.8. It is prepared by sol-gel method and layer-by-layer annealing process. The present invention through the BiFeO 3 Doping the thin film improves the ferroelectric properties, by doping BiFeO 3 Thin film composite CoFe 2 o 4 The magnetic layer realizes the resistive switching effect of the ferroelectric / ferromagnetic composite thin film regulated by ferroelectric polarization.

The invention provides a Bi1-xRExFeO3 / CoFe2O4 multiferroic composite membrane and a preparation method thereof. The composite membrane comprises a Bi1-xRExFeO3 crystalline state membrane and a CoFe2O4 crystalline state membrane which are combined together, wherein RE is Ce, Pr, Tb, Eu or Yb, x is equal to 0.05-0.15; in the preparation, Bi1-xRExFeO3 precursor solution and CoFe2O4 precursor solution are firstly prepared respectively; and then, multi-layer CoFe2O4 membrane is prepared by spinning on a substrate, and the multi-layer Bi1-xRExFeO3 membrane is prepared by spinning on the CoFe2O4 membrane, so the target product is obtained. The facility request is simple, the homogeneity of the prepared membrane is good, the chemical composition can be accurately controlled, the doping content is easily controlled, and the ferroelectric property and ferromagnetic property of the membrane are greatly improved, so the Bi1-xRExFeO3 / CoFe2O4 multiferroic composite membrane has high residual polarization value and residual magnetization value.

The invention discloses a ganoderma lucidum spore powder breaking device, which comprises a pretreatment box, a stamping box, and an air flow mill, the pretreatment box is provided with a feed port 1 and a discharge port 1, and the stamping box is provided with a Feeding port two and discharge port two, the jet pulverizer is provided with a feed port three and a discharge port three, the discharge port one communicates with the feed port of the bucket elevator, and the bucket elevator The discharge port of the feed port is connected with the feed port two, the discharge port two is connected with the feed port of the screw conveyor, the discharge port of the screw conveyor is connected with the feed port three, and the pretreatment box is provided with There is an ultraviolet treatment mechanism, which is used to irradiate the Ganoderma lucidum spore powder with ultraviolet light, and the stamping box is provided with a stamping mechanism and a discharging mechanism. The ganoderma lucidum spore powder wall breaking device can improve the wall breaking rate.

An activated-carbon activation furnace and an activated-carbon production method, which relate to the field of activated-carbon production devices and activated-carbon production technologies. The safety of an activated-carbon production process can be improved to a certain extent, the activation furnace can stably work for a long time, and the quality and the productive capacity of produced activated carbon can be greatly improved. The activated-carbon activation furnace comprises a furnace body, a material entry device (13), and a material discharge mechanism (15). A burning passage (6) communicating with the inside of the furnace body is disposed in the furnace body. Air is introduced in the burning passage (6). The inside of the furnace body is in a negative-pressure state, and the air pressure in the burning passage (6) is lower than that in the furnace body. The activated-carbon production method comprises the following steps: step A, arranging a burning passage (6) and material passages (5); step B, introducing steam into the material passages (5); step C, introducing evolved gas in the material passages (5), into the burning passage (6); step D, heating materials in the material passages (5); and step E, introducing flue gas generated in burning into a steam generator (10) for heat exchange. The activated-carbon activation furnace and the activated-carbon production method are mainly used for activated carbon production.

The invention discloses an integrated rice cleaning and cooking device and method in the field of rice processing technology. The bottom of the cleaning plate is evenly provided with cleaning nozzles, and the cleaning nozzles are all located inside the cleaning box. The middle part of the top of the cleaning plate is fixedly connected with a servo motor, and the power shaft at the bottom of the servo motor is provided with a rotating shaft, and the rotating shaft is located Inside the cleaning box, the rotating shaft is sleeved with a driving bevel gear, and both sides of the driving bevel gear are meshed with driven bevel gears, and the two sets of driven bevel gears are connected with cleaning components, and the rotating shaft rotates It can drive the fixed cover to rotate positively and negatively alternately, and then make the vertical rod drive the blades to rotate positively and negatively alternately, so that the blades can assist the stirring rod, increase the number of times the rice is turned, and further improve the efficiency of rice washing.

The invention provides a multiferroic Bi1-xRExFe0.97-yMn0.03TMyO3 / CoFe2O4 composite film and a preparation method thereof. The composite film comprises a Bi1-xRExFe0.97-yMn0.03TMyO3 crystalline state film and a CoFe2O4 crystalline state film. The preparation method comprises the following steps of respectively preparing Bi1-xRExFe0.97-yMn0.03TMyO3 precursor solution and CoFe2O4 precursor solution; spin coating on a substrate to prepare a plurality of layers of CoFe2O4 films, spin coating on the CoFe2O4 films to prepare a plurality of layers of Bi1-xRExFe0.97-yMn0.03TMyO3 films and accordingly obtaining a target product. According to the multiferroic Bi1-xRExFe0.97-yMn0.03TMyO3 / CoFe2O4 composite film and the preparation method thereof, the device requirement is simple, the prepared film is good in homogeneity, the doping content is easy to control, the ferroelectric property and the ferromagnetic property of the film are improved to a large extent, and the film is high in residual polarization value and residual polarization value.

The invention relates to a method for washing woolen clothes and a washing machine. The washing machine includes a pulsator, the water is fed to the preset water level, and the washing is started. During the washing process, the pulsator performs washing at different turn-to-stop ratios, including the following steps: the first washing process, controlling the pulsator to rotate at the first turn-to-stop ratio for fast washing For woolen clothes, the rotation time in the turn-stop cycle is greater than the stop-rot time; the second washing process, the wave wheel is controlled to rotate and wash clothes with the second turn-stop ratio, and the rotation time in the turn-stop cycle is less than the stop time; the second washing process includes Laundry process and rinse process. In the first washing process, the water flow speed rotates faster, which can fully stir the woolen clothes and improve the washing rate of the woolen clothes. The second washing process takes a long time to stop and reduce the shrinkage rate. The washing machine provided by the invention can reduce the friction between the woolen clothes, the inner tub and the pulsator during the washing process, reduce the shrinkage rate of the woolen clothes, and the pulsator rotates periodically to improve the washing rate.

The invention relates to a B-site Mn and Cu codoped high remanent polarization BiFeO3 film and a preparation method, the method comprises the following steps: dissolving bismuth nitrate, ferric nitrate, manganese acetate and cupric nitrate according to mol ratio of 1.05: [(0.92-0.98)-x]: (0.02-0.08):x in a mixed liquor of ethylene glycol monomethyl ether and acetic anhydride, then uniformly stirring to obtain a BiFeO3 precursor; wherein total metal ion concentration of the BiFeO3 precursor is 0.1-0.5mol / L, X is 0.01-0.03; performing spin coating of the BiFeO3 precursor on a FTO / glass substrate to prepare a wet membrane, baking the wet membrane to obtain a dry membrane, then annealing at 550 DEG C to obtain the crystalline state BiFeO3 film; cooling the crystalline state BiFeO3 film, and repeatedly making the crystalline state BiFeO3 film to reach a required thickness to obtain the B-site Mn and Cu codoped high remanent polarization BiFeO3 film. According to the invention, a sol gel technology is employed, the equipment requirement is simple, the film is prepared on large surface and surfaces with irregular shapes, the chemical component is accurate and controllable, and the regulation and control to its crystal structure can be carried out by codoping thereby the ferroelectric performance of the film is greatly increased.

A furnace body for an activated-carbon activation furnace, which relates to the field of activated-carbon production devices. A burning passage (6) communicating with the inside of the furnace body is disposed in the furnace body. Air is introduced in the burning passage (6). At least two material passages (5) are formed in division of the furnace body, the material passages (5) are disposed along the length direction of the furnace body, and steam is introduced in each material passage (5). The furnace body comprises an outer cylinder (1). At least two sections of branch bin supporting members (4) are disposed along of the circumferential direction of the inner wall of the outer cylinder (1) to form the burning passage (6) in a surrounding manner. Adjacent two sections of branch bin supporting members (4), the inner wall of the outer cylinder (1) and the outer wall of the burning passage (6) define one material passage (5) in a surrounding manner. The safety of an activated-carbon production process can be improved to a certain extent, the furnace body can stably work for a long time, and the quality and the productive capacity of produced activated carbon can be greatly improved.