43results about How to "Uniform chemical reaction" patented technology

The invention discloses a land restoration method for an abandoned sand mining field and relates to the technical field of abandoned land recycling methods. The restoration method includes the following steps: raw materials are transported to the field, the raw materials are smashed for preparation, the smashed raw materials are mixed and stirred, the stirred raw materials are fermented, and the processed raw materials are paved and rolled so that the abandoned sand mining field is filled and leveled up. The land restoration method for the abandoned sand mining field has the advantages that the land restoration burdening is scientific and reasonable, the quality of comprehensive backfill is high, and the physical properties of the land such as the bearing capacity and the shear force and the physical and chemical indexes of soil are fully considered. Therefore, the land restoration method for the abandoned sand mining field fully ensures the stability of the land topography restoration and the good cultivation function, provides quality assurance for the restoration and reconstruction of the ecological system, facilitates inspection and management, and is high in economic benefits, ecological benefits and environmental protection benefits.

A linear Fresnel reflection type mid-and-low temperature solar energy thermochemical utilization device comprises a linear Fresnel reflection condensing mirror array driven by a solar tracking device to real timely track the sun, and a thermal absorber matched with the condensing mirror array and independently arranged, wherein the thermal absorber is tubular, a selective absorption coating is coated on the surface of the outer wall, and a chemical reactant medium and a catalyst are filled in the tube; a solar energy light-focusing system formed by the Fresnel reflection condensing mirror array and the solar tracking device is adopted and is well matched with the hot grade of thermal chemical reaction of mid-and-low temperature fossil fuel, the structure is simple, the manufacturing and running cost is low and the wing resistance is good when the solar energy thermochemical utilization device is mounted close to the ground; with the chemical reactant medium and the catalyst in the thermal absorber, the solar energy thermochemical utilization device can serve as the thermochemical reaction place while absorbing the solar energy, so that the heat can be directly absorbed and utilized, and the system integration complexity and energy transfer loss can be effectively reduced; as the thermal absorber is independently arranged, the safety and the stability are higher during the heat absorption and reaction process.

The invention provides a substrate transmitting device, suitable to transmit a substrate. The substrate transmitting device comprises a carrier, a driving device, a slideway group and a sliding block group. The carrier is used to support the substrate. The driving device provides power needed to transmit the substrate. The slideway group and the sliding block group are disposed between the carrier and the driving device. The slideway group and the sliding block group can move relative to each other. The slideway group is provided with a first slideway and a second slideway. A first section and a second section of the slideway group are defined. When the substrate is on the first section of the slideway group, width of the substrate is a first width. When the substrate is on a second section of the slideway group, width of the substrate is a second width, wherein the first width is different from the second width. When the substrate moves between the first section and the second section of the slideway group, surface tension of the substrate is changed.

The invention discloses a method and a device for preparing a nickel iron roasted ore by utilizing a lateritic nickel ore. The method comprises the following steps: firstly, grinding the lateritic nickel ore into an ore powder, then carrying out high-temperature roasting of the obtained ore powder, during the high-temperature roasting process, allowing the ore powder to be in a pre-reduction system and carry out a high-temperature preheating reduction reaction, followed by allowing the high-temperature roasted ore to go into a rotary kiln for high-temperature calcination, thus obtaining a roasted ore containing nickel pig iron after completing high-temperature calcination, and then after dipping the roasted ore into water for cooling, separating to obtain the nickel iron roasted ore. The device comprises a hopper-type elevator, an air chute, a chute draught fan, a rotary feeder, a sluice valve, a rotary kiln, a water-cooling stirring tank, a burner, a hot wind mixing chamber, a high-temperature draught fan, a cyclone dust remover, a bag-type dust remover, a chain-type conveyor, a burner and a pre-reduction system. The preparation method and the device allow the heat transfer area of the ore powder to be large, enable each particle to be uniformly and fully subjected to a chemical reaction, have short reaction time, and have high utilization rate of the lateritic nickel ore.

A formaldehyde detector (10) provided with a detecting reagent which develops a color in response to formaldehyde. The detector (10) comprises a detection element (30) having a base material (31) which constitutes an optical waveguide transmitting light via repeated total reflection and a mesoporous layer (32) which serves as the surface of the base material (31), is formed by laminating on at least a part of the light reflecting face and carries the detecting reagent as described above. Furthermore, it has a light emitting material which emits an incident light on the base material (31) and a light receiving material which receives the light outgoing from the base material (31). Furthermore, it has a signal processing section wherein the light signal from the light receiving material is received and a change in the optical properties based on the color development due to the reaction of formaldehyde with the detecting reagent is detected to thereby detect formaldehyde and measure its concentration from the change in the optical properties.

The invention discloses single-molecule high polymer and rockfill material three-axis sample preparation equipment and an application method. The equipment comprises a vacuum saturation cylinder and a base located in the vacuum saturation cylinder; a split mold is mounted on the base; a fixing sleeve is mounted at the top of the split mold; the fixing sleeve is fixed at the top of the split mold through a connecting rod; a lower permeable stone, and a rockfill material and a single-molecule high polymer, which are loaded by layers, are arranged on an inner wall of the split mold; a compacting device for impacting the rockfill material and the single-molecule high polymer is mounted in the split mold; second filter paper and a geotextile cover are arranged on the inner wall of the split mold; a water through hole is formed in the base. In a testing sample preparation process, the second filter paper and the geotextile cover are arranged at the inner side of the split mold and can be used for effectively preventing from a condition that high polymer and water have a chemical reaction and then penetrate into a mold formed in the inner side of the split mold so that a test sample is difficult to detach and the content of the high polymer in the test sample is changed.

Disclosed is a preparation method for a prismatic NH4V3O8 nanometer crystal. Ammonium metavanadate is dissolved in deionized water to obtain an NH4VO3 solution; after the pH value is regulated, the solution is poured into a vessel, the vessel is placed into a microwave-ultraviolet-ultrasonic combined extraction reaction instrument, the temperature rises to be 40-80 DEG C in a microwave-ultraviolet-ultrasonic combined mode and then kept, and suspension liquid is obtained; centrifugal separation is carried out on the suspension liquid to obtain the NH4V3O8 nanometer crystal. According to the preparation method for the prismatic NH4V3O8 nanometer crystal, microwave, ultraviolet and ultrasonic can all provide energy for chemical reaction and promote uniform, rapid and complete conduction of the chemical reaction. The NH4V3O8 nanometer crystal prepared through the method is uniform in shape and granule diameter, and prismatic, the granule diameter is 100-150nm, and the NH4V3O8 nanometer crystal can be used as cathode materials for a lithium ion secondary battery. The preparation method is simple, low in reaction temperature, short in reaction period, simple in process equipment, free of subsequent processing, friendly to the environment and suitable for large-scale production.

At least one of a nucleus forming process, a nucleus growing process, a chemical sensitizing process, and a spectral sensitizing process for producing a silver halide photographic emulsion is performed by using a microreactor. A minute region of the microreactor is used to precisely perform a reaction of nucleus formation. A condition under which host grains are allowed to react with newly supplied silver halide nuclei is made uniform to cause uniform crystal growth. A predetermined quantity of molecules for chemical sensitization is doped in a crystal lattice of a nucleus of silver halide to effect a sensitizing process. Alternatively, a spectral sensitizing process in which a single molecular layer of a spectral sensitizer is uniformly adsorbed on a silver halide nucleus grain surface is securely carried out.

Disclosed is a preparation method for a card-shaped NH4V308 micro crystal. Ammonium metavanadate is dissolved in deionized water to prepare an NH4VO3 solution with the concentration of NH4+ being 0.03-0.15mol/L, and then the pH of the solution is regulated to be 3.5-4.5 to obtain a solution B; microwaves and an ultraviolet lamp simultaneously act on the solution B in a microwave and ultraviolet combined mode, the temperature rises to be at 50-90 DEG C and then is kept, and suspension liquid is obtained; centrifugal separation is carried out on the suspension liquid to obtain powdery products, and then the products are dried. The NH4V308 micro crystal prepared in the method is uniform in chemical composition, is high in purity and is shaped like a card, the thickness of the NH4V308 micro crystal is about 200-500nm, and the NH4V308 micro crystal has good electric chemical performance when serving as anode materials for a lithium ion battery. The preparation method for the card-shaped NH4V308 micro crystal is simple, low in reaction temperature, short in reaction period, without subsequent processing, friendly to the environment, and suitable for large-scale production.

A secondary battery capable of improving charge-discharge cycle characteristics in the case where an alloy material is used as an anode active material is provided. An exposed cathode region is disposed in an outer end portion of a cathode. The exposed cathode region includes an insulating protective member on at least one of an outer side and an inner side of the exposed cathode region in a position opposed to an outer end portion of an anode active material layer in one turn inside the outer end portion. In a cathode active material layer, a central angle between an outer end portion and a central end portion at the center of the spirally wound body is preferably within a range from 0 DEG to -90 DEG inclusive from the central end portion in a winding direction.

Relating to the chemical battery field, in particular to a metal air battery that has multiple battery core units in series or parallel connection, can be stored for a long time before use, and can enable air positive layers of the battery core units to suck in an electrolyte aqueous solution during electricity generation, the invention discloses a metal air battery, a battery pack and a device applying the same. The metal air battery comprises an instrument type box, and symmetrical slots, battery core units, elastic components, an electrolyte aqueous solution, and inter-battery core unit series or parallel connection wires that are arranged in the instrument type box. The whole structure is simple, the battery core units can be inserted and taken out at any time, are convenient for centralized management and maintenance, can be easily expanded and integrated into a fixed or mobile generator room or power generation system, the battery chemical reaction is uniform and continuous, andthe electric energy production is constant. The volume expansion of the inter-battery core unit reaction product has no mutual interference and can automatically give way elastically, thus being convenient to recover the reaction product, and having no influence on the suction volume of secondary added water or electrolyte aqueous solution, and the operation is convenient during secondary replacement of metal negative electrodes.

The invention discloses a magnesium-lithium alloy surface treatment device, and aims to enable a magnesium-lithium alloy to be uniform in a conversion film layer in the chemical conversion process and to generate no corrosion spots in inspection by a salt spray test. The magnesium-lithium alloy surface treatment device is characterized by comprising a treatment tank for placing treatment liquid, wherein multiple liquid spray holes are formed in the bottom of the treatment tank; the liquid spray holes are connected with a variable frequency pump through a liquid channel formed in the bottom of the treatment tank; the variable frequency pump is connected to a treatment liquid source; a control end of the variable frequency pump is connected to a controller; a position sensor is arranged on the side wall of the treatment tank, and is connected to the controller; when a magnesium-lithium alloy workpiece is treated, the treatment liquid is sprayed through the liquid spray holes to suspend the magnesium-lithium alloy workpiece in the treatment liquid; the position sensor detects position change information of the magnesium-lithium alloy workpiece to return to the controller; and the controller adjusts the liquid outlet pressure of the variable frequency pump according to the position change information so as to stably suspend the magnesium-lithium alloy workpiece in the treatment liquid.

The invention discloses a preparation method of silicon carbide press balls used in steel-making deoxygenation, which is implemented by smashing bulk silicon carbide into granules with diameter being within 3mm to be as ingredient and sieving; mixing starch weighing 2-3% of silicon carbide ingredient and water weighing 5-7% of silicon carbide ingredient in a container and agitating to made starch slurry to be as adhesive; taking fluorite powder weighing 5-10% of silicon carbide ingredient to be as auxiliary material; adding sieved silicon carbide granules, auxiliary material fluorite powder and adhesive starch slurry into a drum-type agitator for agitating for 15-20 minutes; taking uniformly agitated silicon carbide doped with starch slurry and fluorite powder out of the agitator and directly putting into a ball press for wet pressing; and drying the formed press balls until moisture is within 0.5%. The silicon carbide press balls in the invention has equal size and uniform chemical ingredient content, thus enhancing molten steel quality and easiness of steel-making time control, lowering melting point of silicon carbide, reducing dust and improving operating conditions of workers.

The invention discloses a preparation technology of a corrosion-resistant aluminum alloy material and the corrosion-resistant aluminum alloy material. The corrosion-resistant aluminum alloy material comprises the following raw materials of silicon nitride, ferromolybdenum, copper, graphene, manganese, yttrium, titanium, borax, chromium, nickel, diatomite, trisodium phosphate, an acrylics regulator, p-hydroxybenzenesulfonic acid, a dispersant POLYRON, a 701 powder enhancer and aluminum. The corrosion-resistant aluminum alloy material is prepared from the steps of smelting, refining, casting, die straightening and the like. According to the preparation technology of the corrosion-resistant aluminum alloy material and the corrosion-resistant aluminum alloy material, the corrosion-resistant aluminum alloy material is high in hardness, high in anti-oxidation performance and corrosion resistance, environmentally friendly in production process and long in service life.

The invention discloses an aluminum alloy strip for a mobile phone battery shell and a manufacturing method thereof. The aluminum alloy strip for the mobile phone battery shell comprises the followingraw materials of aluminum, silicon, iron, copper, magnesium, manganese, zinc, titanium, tin, chromium, nickel, graphene, sodium fluosilicate, ytterbium acetate, a dispersing agent POLYRON and a 701 powder reinforcing agent. The aluminum alloy strip for the mobile phone battery shell is manufactured through the steps of burdening, smelting, casting, homogenization annealing, hot rolling treatment,cold rolling treatment and the like. According to the aluminum alloy strip for the mobile phone battery shell, the tensile strength is large, the elongation at break and the ear-making rate are low,and the requirements of the more complex asymmetric box type large-scale thinning stretching punching forming can be met.

The invention discloses a stent with a modification layer, a preparation method of the stent and an implantation instrument, and belongs to the technical field of medical instruments. The preparation method comprises the following steps: spraying and adsorbing a super-hydrophilic monomer to a stent matrix attached with a transition section reactant while ionizing, and drying for the first time to obtain a primary stent product with a modification layer; and mixing the primary scaffold product with the transition section reactant solution, carrying out secondary grafting, adding the super-hydrophilic monomer solution into a mixed system of the primary scaffold product and the transition section reactant solution in a dropwise adding manner, carrying out a reaction, and carrying out secondary drying to obtain the scaffold with the modification layer. Compared with an existing blood flow guiding device chemical grafting process, the preparation method has the advantages that through adsorption of atomic bond energy after electrolysis, the firmness of the coating is greatly improved, and meanwhile, the hydrophilicity and biocompatibility of the product are effectively improved. The prepared stent product has good hydrophilicity, biocompatibility, anticoagulant activity and coating firmness, and has wide application prospects in implantable instruments.

The invention relates to a control device in a purification amplification reaction based on PCR. According to a method, a reactant to be amplified, a freeze-drying ball and memory metal are contained in an amplification bin; when the reactant to be amplified enters the amplification bin, a first length and a second length of the memory metal at a first temperature and a second temperature are recorded; a first disturbance function T1 (t1i, L1i and Q1i) and a second disturbance function T2 (t2i, L2i and Q2i) are established, t1i and t2i represent the first temperature and the second temperature in the ith period respectively, and L1i and L2i represent the length of the corresponding memory metal in the ith period respectively; and Q1i and Q2i respectively represent the mixing degree of the reactant to be amplified and the freeze-dried ball in the ith period. The memory metal is arranged in the amplification bin, so that the related chemical reaction is more uniform under the action of disturbance, and the reaction is more sufficient.