690results about How to "Avoid uneven mixing" patented technology

The invention relates to a method for preparing a high-nickel long-cycle single-crystal nickel-cobalt-manganese (NCM) lithium ion battery positive-pole material. The preparation method comprises the following steps: (1) mixing a soluble nickel salt, a cobalt salt, a manganese salt, an alkali metal hydroxide and ammonia water, and enabling the mixture to flow into a reaction kettle for constant-temperature coprecipitation to obtain a high-nickel NCM ternary precursor material; (2) uniformly mixing the high-nickel NCM ternary precursor, lithium hydroxide and an additive A in a wet high-speed mixing mode, carrying out drying, then carrying out primary sintering in an oxygen-enriched atmosphere to obtain a spherical high-nickel NCM ternary positive-pole material; (3) carrying out crushing, smashing and sieving to obtain a high-nickel NCM ternary positive-pole material; and (4) carrying out wet mixing and drying on the high-nickel NCM ternary positive-pole material with a coating agent B, carrying out secondary sintering in an oxygen-enriched atmosphere, and carrying out crushing, smashing and sieving to obtain the high-nickel single-crystal NCM lithium ion battery positive-pole material. The positive-pole material prepared by the method has the advantages of high capacity, good cycle performance, high compaction density and the like.

The invention discloses an oily sludge treatment system and a treatment method thereof. The treatment system comprises crushing equipment, a vibrating screen, a precipitation device, an ejector, a high-speed crushing device, a water storage device and separation device for separating oil, water and sludge, wherein the crushing equipment is used for primarily crushing oily sludge and is provided with an oil slick space and a first oil slick outlet which can be opened and closed; the vibration screen is located at the upper part of the precipitation device; the precipitation device is used for precipitating the screened oily sludge; the high-speed crushing device is used for crushing the oily sludge into fine particles; the precipitation device is sequentially connected with the ejector, the high-speed crushing device and the separation equipment; a water outlet of the water storage device is connected with a water inlet of the ejector. The treatment system can be applicable to dewatering of various oily sludges, meanwhile, the oil rate of the oily sludge can be reduced to below 3%, oil can be recovered to the maximal extent and secondary pollution of wastewater is not generated.

The invention relates to a cast-in-situ fireproof material of a fireproof door and a manufacturing method of the fireproof door, in particular to a cast-in-situ inorganic gelled material of a fireproof door leaf and a fireproof door frame, comprising the following components by weight percent: 30-60 of magnesia; 17-50 of magnesium chloride solution; 0.5-3 of modifier; 0.1-1 of flock and 5-30 of fly ash, which are mixed to be a liquid inorganic gelled material. The invention has the advantages that the inorganic gelled material is manufactured by a cast-in-situ mode, and no adhesive or no prefabricated inner is needed, thereby the conditions of cracks, filling and uneven material mix in the prior art are avoided, and materials which can evaporate noxious gas after heating are completely cancelled; the inorganic gelled material containing a large amount of foam is filled in a framework, thereby the weight of the whole fireproof door is reduced, and the transportation and the installation efficiencies are greatly enhanced; the foam has good insulation effect, and the solidified foam in the fireproof material can further shrink after pressure processing so as to have complete filling, thereby enhancing the density of the fireproof door and greatly strengthening the fireproof performance.

The invention discloses an oscillating-type efficient feed mixing device which comprises a base and a mixing box. The mixing box is arranged above the base, a supporting disc is arranged between the mixing box and the base, the mixing box is connected with the supporting disc through a connecting frame, and a driving disc is arranged on the right side of the supporting disc. Wall-hanging-preventing assemblies are symmetrically arranged on two sides of the mixing box. A mixing motor is installed at the central position of the top of the mixing box. In the oscillating-type efficient feed mixing device, the mixing box can oscillate by arranging the supporting disc and the driving disc, accordingly materials in the mixing box are shaken, and a material mixing effect is improved. The oscillating stability of the mixing box is improved through matched use of a connecting column and an arc-shaped sliding groove. By arranging the oscillating rod, a stirring range is widened, and thus the material mixing effect is improved. By arranging the wall-hanging-preventing assemblies, the materials are effectively prevented from attaching to the inner cavity wall of the mixing box and accordingly uneven mixing is caused, and meanwhile waste caused by non-thorough discharging is also avoided.

The invention discloses a lead-carbon battery for a motorcycle. The lead-carbon battery comprises positive grid, a positive lead plaster coated on the positive grid, a negative grid and negative lead plaster coated on the negative grid, wherein the positive lead plaster is prepared from the following raw materials in parts by weight: 100 parts of lead powder, 9-10 parts of dilute sulfuric acid which is 1.400 in density, 0.02-0.03 part of short fiber, 0.15-0.3 part of graphite and 13-14 parts of purified water; and the negative lead plaster is prepared from the following raw materials in parts by weight: 100 parts of lead powder, 0.95-1.15 parts of expanding agent, 1-4 parts of complex carbon material, 7-8 parts of dilute sulfuric acid which is 1.400 in density, 0.015-0.025 part of short fiber and 11-14 parts of purified water. The positive and negative active substance utilization ratio of the prepared lead-carbon battery for the motorcycle is increased by 15-25 percent in comparison to a conventional battery. When the battery is started for discharging at large current at the multiplying power of 8-10 times, the output power is stable.

The invention relates to a process for preparing gamma-AlON powder by chemical coprecipitation and a carbothermal reduction method, belonging to the synthesis and processing field of ceramic material powder. The process is characterized by comprising the following steps: carrying out precipitation reaction based on aluminium nitrate, urea and nano carbon black as raw materials, polyethylene glycol (PEG) as a dispersing agent and ammonium bicarbonate as a precipitator so as to obtain a precursor; precipitating and washing the precursor, drying and then grinding, and processing for 2-4 hours under the protective condition of nitrogen with 700 DEG C; insulating for 2-4 hours at the temperature of 1750 DGE C under the condition that the flow of nitrogen is 0.5L/min; and naturally cooling in air, then decarbonizing at the temperature of 700 DEG C so as to finally obtain the pure AlON powder with a particle size of 1-4 mu m and the grain size of the powder is uniform.

The invention discloses a stirring machine for food processing. The stirring machine comprises a stirring tank, wherein a motor is fixedly connected at the top of the stirring tank; a rotary shaft is fixedly connected at the output end of the motor; the bottom of the rotary shaft penetrates through an inner cavity of the stirring tank and is sleeved with a first driving bevel gear; first driven bevel gears are arranged on two sides of the first driving bevel gear and meshed with the two sides of the first driving bevel gear. The stirring tank, the first driven bevel gears, a discharging pipe, the first driving bevel gears, supporting legs, a first stirring shaft, third stirring rods, the rotary shaft, a second stirring shaft, second stirring rods, a feeding pipe, the motor, second bearing blocks, first bearing blocks, first stirring rods, second driving bevel gears and second driven bevel gears are matched in use, the problem of uniform stirring of existing stirring machines for food processing is solved, the stirring machine for food processing has the advantage of uniform stirring and worth popularization, and the practicability of the existing stirring machines for food processing is improved.

The invention relates to a preparation method of ultrafine tungsten carbide powder. A mixture of ultrafine tungsten powder, carbon black and ultrafine tungsten carbide powder used as an initial reactant is subjected to carbonization reaction in a non-oxidizing atmosphere to prepare the ultrafine tungsten carbide powder. The ultrafine tungsten carbide powder prepared by the method has the advantages of small particle size, uniform particle size distribution, favorable dispersity, no pellet and high combined carbon content; and the production technique can easily control the quality and can implement mass production.

The invention relates to a method for preparing a high-performance polyamide/samarium-iron-nitrogen magnetic composite material. The method comprises the following steps: first, extruding polyphenylene sulfide resin serving as a matrix, a toughening agent, a lubricating agent, an antioxidant and the like together by using a twin-screw extruder to prepare a multifunctional master batch; second, extruding samarium-iron-nitrogen which is subjected to surface treatment and the master batch which is prepared in the first step to prepare the magnetic composite material. The polyamide/samarium-iron-nitrogen magnetic composite material prepared by the method has high fluidity, high magnetic performance and good mechanical properties, and is suitable for producing devices by an injection molding method. The method has the advantages of simple preparation process, low equipment requirement and applicability to industrial production.

The invention provides a lead-carbon super battery anode material which is a graphene/Pb nano composite material. The lead-carbon super battery anode material is prepared by mixing a lead salt solution with a graphite oxide solution, carrying out hydrothermal reaction, and then carrying out macro body freeze drying and burning. The lead-carbon super battery anode material is prepared from 91 to 99.5 percent of lead and 0.5 to 9 percent of graphene. The lead salt solution is prepared by dissolving soluble lead salt into deionized water; the soluble lead salt is one or several of lead-containing nitrate, acetate, carbonate, hydrochloride, sulfate and complex salt. The invention further provides a preparation method of the lead-carbon super battery anode material. The preparation method provided by the invention has the advantages of high efficiency, environmental friendliness, high uniformity and the like; the prepared lead-carbon super battery anode material is high in uniformity, high in stability and wide in application prospect.

The invention discloses a diamond powder stirring and mixing device comprising a stirring tank with an opening in the top, the stirring tank is plugged into the center of the inner cavity of a base; supporting columns are symmetrically and fixedly connected to the left side and the right side of the top of a base; a cover plate is fixedly connected to the tops of the supporting columns, and threesets of first hinge seats are fixedly connected to the outer wall, located below the cover plate, of a stirring shaft in the axial direction; and a first stirring rod is hinged to one end, away from the stirring shaft of each first hinge seat. The stirring shaft, the first stirring rods and a second stirring rod can be driven to rotate through a rotating motor, so that materials in the stirring tank are stirred, and the sliding block slides up and down along a reciprocating screw rod in a reciprocating mode; connecting rods drive the first stirring rods to swing up and down at an angle for stirring, so that the stirring areas of the first stirring rods and the second stirring rod are larger, the mixing effect is better, and uneven mixing caused by inertia centrifugal force generated by materials under the stirring action of the stirring shaft and the stirring rods can be avoided; therefore, the mixing effect can be further improved.

The invention provides a titanium-steel dissimilar metal structure and a manufacturing method thereof. The meshing-corresponding sawtooth structure with high integrating degree is obtained by a stacking-and-lapping mode; a composite plate is obtained by meshing-connection; and high-quality welding of titanium-steel dissimilar metal is achieved by a stirring-friction welding method. The influence on the performance of a dissimilar metal stirring-friction welding connector by deviation is not necessarily to be considered; and asymmetry of a forward side and a backward side in the traditional butt joint process is eliminated. The sawtooth meshing structure is adopted, and therefore action of welding force on materials during the welding process is improved to assist material smashing, the linear contact area of the dissimilar metal is increased, relative movement distance of metal atoms is shortened so that more atoms can move under the same energy, the mutual flow and mutual mixing capacity of the dissimilar metal materials can be improved, the problem of nonuniform connector tissue mixing is avoided, interlocking mixing of weld joint materials is improved, and strength of the connector is greatly improved.

The invention discloses a preparation method of a cobalt-free positive electrode material, which comprises the following steps of: (1) preparing of a cobalt-free positive electrode material precursor:(1a) mixing a nickel salt solution and a manganese salt solution, adding a nano additive, and carrying out ultrasonic treatment; (1b) in a nitrogen atmosphere, adding the mixed solution into a reaction kettle, then adding a mixed alkali solution of strong alkali and ammonia water, adjusting the pH value to 9-12 and the reaction temperature to 40-60 DEG C, and washing, filtering and drying after the reaction is finished; and (2) high-temperature sintering: uniformly mixing lithium hydroxide with the powder obtained in the step (1b), calcining at a constant temperature of 700-1000 DEG C for 5-20 hours, and naturally cooling to obtain the cobalt-free positive electrode material. The method can be used for preparing a series of cobalt-free substitutes of NMC and NCA cathode materials, is simple in process, uniform in particle distribution, large in specific discharge capacity and good in cycle performance, realizes cobalt removal of the cathode materials, and reduces the cost.

The invention discloses a vertical type mixer for producing ceramics. The vertical type mixer comprises a mixing cylinder, cleaning nozzles and a circulation material conveying pump, wherein a feeding funnel is disposed at the left end of the mixing cylinder, a cover plate is disposed at the top end of the feeding funnel, a rotary shaft is vertically disposed at the axis inside the mixing cylinder, mixing blades are disposed on the upper outer wall of the rotary shaft in a left-right symmetry manner, and a mixing plate is fixed on the lower side of the rotary shaft. The vertical type mixer has the advantages that the mixing blades and the mixing plate jointly mix materials, the materials at the bottom are pumped into the top of the mixing cylinder in a circulation manner for mixing, uneven mixing caused by the fact that the materials at the bottom cannot be stirred, self-cleaning of the interior of the mixing cylinder can be achieved, manual cleaning is not needed, time and labor are saved, the mixing cylinder can be used conveniently next time, dust leakage during mixing can be avoided by the cover plate on the feeding funnel, dust produced during mixing can be recycled, dust pollution is avoided, and raw materials are saved.

The invention discloses a high-capacity long-service-life double-bag nickel-hydrogen battery. A battery pole plate consists of a bag type nickel positive electrode plate, a bag type hydrogen storage alloy negative electrode pole plate and a multilayer composite membrane or separation electrode grid positioned between the bag type nickel positive electrode plate and the bag type hydrogen storage alloy negative electrode pole plate; an electrode material of the bag type nickel positive electrode plate is prepared from positive electrode active materials, conducting agents, additives and bondingagents; an electrode material of the bag type hydrogen storage alloy negative electrode pole plate is prepared from hydrogen storing alloy powder, conducting agents and bonding agents; electrolyte isa KOH alkaline solution containing additives in a rich liquid state. Through positive and negative electrode formula optimization, electrolyte formula optimization, electrode preparation method process improvement and separation plate optimization selection, the electrode structure of the positive and negative electrodes is greatly optimized; the utilization rate of positive and negative electrodeactive substances is improved; the internal resistance of the battery is optimized and reduced; the chalking resistant and anticorrosion capability of negative electrode hydrogen storage alloy is improved; the low-temperature performance of the battery is improved; the cycle service life of the battery is prolonged.

The invention discloses a preparation method of an arginine ibuprofen salt. The method is that ibuprofen is adopted to dissolve into ethanol with 95 percent concentration and added with solid arginine while stirring, and then heated to 40 to 80 DEG C, stirred for 15 to 60 minutes, after reaction, cooled to room temperature and crystallized. The preparation method of the invention adopts that the solid arginine is directly added to the ibuprofen solution and no solvent is added before the solid arginine addition, thus shortening production technique steps and reducing reaction equipment. The process that directly crystallization from mother liquid in room temperature, need not be added with other solvent to dilute, thus reducing consumption of solvent and kinds, shortening production technique flow; as the solvent can be recycled and reused, thus reducing production cost and saving energy.

The invention discloses a circulating material stirring and mixing device. The circulating material stirring and mixing device comprises a stirring shell, a transmission device, a machine frame and a rotating shaft. The transmission device is fixed to the top end of the stirring shell through the machine frame and connected with the rotating shaft located inside the stirring shell. A spiral lifting blade is arranged on the rotating shaft, a lifting shell is arranged outside the spiral lifting blade and is hollow, the upper end of the lifting shell is open, and the lower end of the lifting shell is closed and connected with a motor located below the stirring shell through a coupling. A sealing ring is arranged at the portion where the lifting shell is in contact with the stirring shell, and an in-out opening is formed in the lower portion of the lifting shell. A stirring device is arranged on the outer side wall of the upper portion of the lifting shell. The circulating material stirring and mixing device has the advantages that structural design is reasonable; materials can be forcedly circulated, the problem that the materials at the bottom are unevenly mixed is solved, and the stirring and mixing effect on the materials is better.

The invention belongs to the technical field of a processing method of rubber forming, and relates to a continuous serial-type rubber mixing method. The method comprises the steps of calculating the mass of each material and setting working parameters of an internal mixer according to a specific model of the internal mixer and a production formula of rubber compound; mixing matrix adhesive and various accessory ingredients in the internal mixer, and discharging the formed primary mixed rubber into a storage hopper when the temperature of the rubber reaches 95+/-5 DEG C; pressing the primary mixed rubber into an opposite-direction dual-rotor continuous internal mixer by adopting a pressure weight through a feeding opening, carrying out the temperature-control two-sectional mixing for the primary mixed rubber by virtue of the cooperation of five sections of cooling passages, and discharging a formed semi-finished product rubber sheet through a discharging opening; adding an accelerator and sulfur after the semi-finished product rubber sheet is pressed by an open mill, and then carrying out the subsequent relevant process and test comparison analysis. By adopting the method, the continuity of the mixing technology is realized, non-uniformity for mixing small materials and rubber can be avoided, the production efficiency is improved, the quality of rubber products can be guaranteed, the energy loss in the mixing process can be reduced, and the manpower and material resource can be saved.

The invention discloses a potted plant cultivation system for an overpass in municipal construction. The potted plant cultivation system comprises a pot body, wherein a planting groove is formed in the upper end of the pot body; a water storage cavity is formed in the lower end of the pot body; a water spraying pipe is fixedly connected to the upper portion of the inner wall of the planting groove; an arc-shaped cavity is formed in the top in the water storage cavity; and the inner wall of the arc-shaped cavity is fixedly connected with a magnetic sliding plug through a spring. After the temperature in the soil of the planting groove rises, evaporation liquid evaporates to drive an elastic plate to bulge, so that a circuit between two conductive blocks and an annular magnet is connected, the annular magnet is heated, the annular magnet is demagnetized when the temperature rises to the Curie point of the annular magnet, and a magnetic sliding block rises under the driving of a reset spring to drive a lead screw to rotate; and then stirring blades are driven to continuously sweep over the magnetic sliding plug, so that the magnetic sliding plug sprays water in the water storage cavity into a water spraying pipe, and water can be automatically added into the planting groove according to the temperature of soil in the planting groove.