24results about How to "Reduce mixing" patented technology

The invention discloses a compressor performance testing device capable of rapidly stabilizing working conditions, and relates to the technical field of compressor performance testing. The system comprises a test device and a test system in communication control connection with the test device, and the test device comprises an oil separation assembly and a refrigerant assembly; the oil separation assembly comprises an oil component, the oil component is connected with an oil flow meter and a gas path total flow meter through a tee joint, and the other end of the oil flow meter is connected with an oil cooler in series through an oil path pipeline. Through the arrangement of the refrigerant assembly, when a high-temperature and high-pressure gaseous refrigerant is discharged from the outlet of the tested compressor, one part of the high-temperature and high-pressure refrigerant is directly poured into the mixing box through the tee joint, and the other part of the high-temperature and high-pressure refrigerant is condensed by the condenser to become a liquid low-temperature and high-pressure refrigerant to enter the mixing box; the liquid refrigerant and the gas refrigerant are mixed, and the mixing proportion can be adjusted through the two adjusting valves respectively, so that the requirements of test working conditions are met.

The invention belongs to the technical field of battery positive electrode preparation, and particularly relates to a mixed coating coated nickel-rich layered oxide positive electrode and application thereof. The mixed coating coated nickel-rich layered oxide positive electrode is an NCM system positive electrode material, and the proportion of a Ni material in an NCM ternary system is greater than or equal to 92 wt%; the ratio content of Ni of the nickel-rich layered oxide positive electrode coated with the mixed coating in three elements of Ni, Co and Mn is greater than or equal to 92 mol%; and the nickel-rich layered oxide positive electrode coated with the mixed coating is coated with Li3PO4 and / or Li3BO3 and / or LiNbO3. The positive electrode material provided by the invention can effectively reduce the space charge layer effect and interface side reaction between the positive electrode and the electrolyte, the lithium ion migration efficiency is high, and the cycle performance of the assembled battery is good.

The invention discloses a fine whisker nickel-cobalt-manganese hydroxide precursor and a preparation method thereof, the product morphology can be regulated and controlled by regulating and controlling the temperature and the pH value of the particle size in the growth reaction stage on the premise of not introducing compressed air, the precursor product with fine whisker morphology and large specific surface is prepared, and the repeatability and controllability are good. And meanwhile, the lithium ion battery prepared from the precursor has excellent chemical properties, the first discharge capacity at 0.2 C is up to 207.4 mAh / g, and the first efficiency is up to 89.2%.

The invention relates to the technical field of flue gas denitration, in particular to boiler flue gas dry denitration treatment equipment. Comprising a supporting frame, the supporting frame is fixedly connected with a mixing cylinder and a reaction cylinder, the bottom of the mixing cylinder is fixedly connected and communicated with an air inlet pipe, the bottom of the reaction cylinder is fixedly connected and communicated with an air outlet pipe, the mixing cylinder is rotationally connected with a material injection ring in a sealed mode, and the material injection ring is fixedly connected with material injection cylinders in an annular array. The material injection barrels in the annular array are jointly and fixedly connected with a rotating ring, the rotating ring is rotationally connected with a fixed inner ring in a sealed mode, the fixed inner ring is fixedly connected with a material injection pipe, and material injection nozzles in an annular array are rotationally connected into the material injection ring. The four material injection nozzles rotate to spray rising flue gas and mix the flue gas with one another, and the spraying positions of the material injection nozzles are continuously changed, so that the spraying dead angles of the material injection nozzles are avoided, and the mixing degree of the flue gas and denitration agent dry powder is improved.

The invention belongs to the technical field of batteries. The invention provides a high-nickel ternary positive electrode material and a preparation method and application thereof, the high-nickel ternary positive electrode material comprises a high-nickel main material and a coating layer arranged on the surface of the high-nickel main material, and the coating layer comprises lithium peroxide. Through lithium peroxide coating, the protection and isolation effects of a coating layer can be achieved, the cycle performance is improved, the lithium supplementing effect can be achieved, and capacity damage cannot be caused to the high-nickel main material. According to the preparation method, peroxide is introduced in the process of forming the high-nickel main material through high-temperature calcination, the mixing degree of lithium and nickel in the high-nickel and ultra-high-nickel ternary main material is effectively reduced, the obtained high-nickel main material is washed in a lithium-containing aqueous solution, lithium hydroxide coating is achieved while lithium carbonate is washed away, damage of water to the main material is inhibited, and the high-nickel and ultra-high-nickel ternary main material is obtained. A rock salt phase protection layer is generated on the surface of the main material, so that the cycling stability of the material is further enhanced.

The utility model belongs to the technical field of double-screw extrusion bulking machines, and particularly relates to a cylindrical textured protein double-screw extrusion bulking device which comprises a double-screw extrusion bulking machine body, the top of the double-screw extrusion bulking machine body is communicated with a feeding barrel; the top of the double-screw extrusion bulking machine body is fixedly connected with a water tank; the water tank is located on the side of the feeding barrel. By means of the structure, cleaning liquid can be diffused, so that the contact area between the cleaning liquid entering the feeding barrel and the side wall of the feeding barrel is wider, finally, the inner side wall of the feeding barrel is cleaned, then the cleaning liquid enters the interior of the twin-screw extrusion bulking machine body, and the cleaning effect is improved. According to the double-screw extrusion bulking machine, the interior of the double-screw extrusion bulking machine body can be synchronously cleaned, so that the situation that raw materials are mixed in next processing due to the fact that drawing protein raw materials remain in the feeding barrel and the double-screw extrusion bulking machine body is reduced.

The invention relates to the technical field of lithium ion battery positive electrode materials, in particular to a high-voltage precursor material and a preparation method thereof, a positive electrode material, a positive plate and a lithium ion battery. The chemical formula of the high-voltage precursor material is NixCoyMnzMw (OH) 2, y is more than or equal to 0.1 and less than or equal to 0.2, z is more than or equal to 0.2 and less than or equal to 0.4, x + y + z = 1, and w is more than or equal to 0.001 and less than or equal to 0.015; m is a doping element and comprises at least one of Mg, Al, Ce, Mo, B and Ta; the tap density of the high-voltage precursor material is greater than or equal to 1.90 g / cm < 3 >, and the specific surface area is greater than or equal to 10m < The precursor material has high tap density and high specific surface area at the same time, and when the positive electrode material prepared from the precursor material is used for a battery, the cycle performance is good under high voltage, the ion mixing degree is relatively low, and irreversible phase change is reduced; meanwhile, the precursor material is doped with the element M, so that the structural stability is good.

The present invention relates to the technical field of cosmetic pens, and specifically to a multifunctional cosmetic pen, comprising a pen holder and a cosmetic egg, wherein the cosmetic egg is fixedly connected to the lower end of the pen holder, a protective mechanism is movably connected to the lower portion of the outer surface of the pen holder, and the protective mechanism can wrap and protect the cosmetic egg, wherein the protective mechanism comprises a pen cap, a positive thread, a negative thread, a cover plate and a spring shaft, wherein the pen cap is movably connected to the lower portion of the outer surface of the pen holder, the positive thread is arranged at the middle portion of the outer surface of the pen holder, the negative thread is arranged at the lower portion of the outer surface of the pen holder, the cover plate is rotatably connected to the lower portion of the pen cap, and a spring shaft is hingedly connected to the left side between the cover plate and the pen cap, connecting threads matching the positive thread and the negative thread are respectively arranged at the upper and lower ends of the inner surface of the pen cap, a sterilizing mechanism is arranged inside the pen cap, and the sterilizing mechanism comprises an interlayer and activated carbon balls, which can protect the cosmetic egg on the pen holder, thereby improving the service life of the pen holder, and the protective mechanism is connected to the pen holder and is not easily lost.

The invention relates to the technical field of lithium ion batteries, and discloses a high-nickel ternary positive electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: mixing and sintering a nickel-cobalt-manganese precursor, a lithium source, niobium salt and fused salt. According to the preparation method of the high-nickel ternary positive electrode material provided by the invention, the niobium salt and the molten salt form a liquid phase environment at a relatively low temperature, and the niobium element can efficiently enter a crystal lattice, so that uniform bulk phase doping in a real sense is realized, and the electrochemical stability and the thermal stability are improved; meanwhile, the niobium doping can ensure the rapid and uniform transmission of the lithium source, so that the lithiation is more sufficient, and the lithium-nickel mixed arrangement caused by lithium deficiency is reduced in dynamics.

The utility model provides a flow dividing plate, a cold tank and a water dispenser. The flow dividing disc comprises a transverse partition plate, a first longitudinal partition plate and a second longitudinal partition plate. The first longitudinal partition plate and the second longitudinal partition plate are both arranged on the upper surface of the transverse partition plate. The first longitudinal partition plate is arranged in a circle around the circumferential direction of the transverse partition plate, and the second longitudinal partition plate is arranged around the first longitudinal partition plate so as to divide the upper space of the transverse partition plate into a warm water area, a variable temperature area and a cold water area which are sequentially arranged from inside to outside; the first longitudinal partition plate is provided with a first water passing opening communicated with the warm water area and the variable temperature area, and the second longitudinal partition plate is provided with a second water passing opening communicated with the variable temperature area and the cold water area. According to the split-flow disc, the variable-temperature area is used for buffering water flow, the mixing degree of cold water and warm water is reduced when warm water is discharged, and therefore the influence of the cold water on the outlet temperature of the warm water can be reduced, the outlet temperature of the warm water is guaranteed, and the problem that the outlet temperature of the warm water is too low is avoided.

The invention relates to the technical field of air conditioners and discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a shell, a first air inlet, a second air inlet, an air conditioner air outlet, a heat exchange air duct and an auxiliary air inlet duct are defined in the shell, the two ends of the heat exchange air duct communicate with the first air inlet and the air conditioner air outlet correspondingly, an air inlet of the auxiliary air inlet duct communicates with the second air inlet, and an air outlet of the auxiliary air inlet duct is connected with the heat exchange air duct; indoor air without heat exchange can flow into the auxiliary air inlet duct through the second air inlet; and the sealing device is arranged in the auxiliary air inlet duct to open or seal the auxiliary air inlet duct, the auxiliary air inlet duct communicates with the heat exchange air duct under the condition that the sealing device opens the auxiliary air inlet duct, and the auxiliary air inlet duct is disconnected from the heat exchange air duct under the condition that the sealing device closes the auxiliary air inlet duct. According to the air conditioner indoor unit, the situation that indoor air and heat exchange air are mixed can be reduced under the condition of normal air outlet, and the air outlet effect of the air conditioner indoor unit is improved.

The utility model relates to the technical field of evaporators, in particular to a hydrocyclone separation type forced circulation MVR (Mechanical Vapor Recompression) crystallization evaporator which comprises a feeding pipeline for conveying mother liquor; the gravity settling tank is communicated with the feeding pipeline and can receive mother liquor; the heater is communicated with the gravity settling tank; the forced circulation pump is respectively communicated with the gravity settling tank and the heater and is used for conveying the mother liquor in the gravity settling tank into the heater; the evaporator is communicated with the heater and can receive the mother liquor conveyed by the heater; the cyclone hydraulic separator is mounted in the evaporator and can be used for crystallizing and separating the crystallization liquid, and the cyclone hydraulic separator is communicated with the gravity settling tank and can be used for conveying separated clear liquid into the gravity settling tank; and the steam compressor is respectively communicated with the heater and the evaporator, and can pressurize and heat the steam formed by evaporation in the evaporator and convey the steam into the heater. Blockage of the heater and the forced circulation pump can be reduced.

The utility model belongs to the technical field of nano-particle dispersion, and particularly relates to an ultrasonic dispersion device which comprises a workbench, a material container is arranged at the top of the workbench; an ultrasonic generator body is arranged at the top of the material container; the end part of the ultrasonic generator body extends into the material container; the middle part of the ultrasonic generator body is fixedly connected with a first fixing ring; by means of the structure, the middle of the ultrasonic generator body can be scrubbed, so that raw materials adsorbed by the middle of the ultrasonic generator body are reduced, the situation that the raw materials are mixed due to repeated stirring of the ultrasonic generator body is reduced, and meanwhile, the ultrasonic generator body is convenient to use. A plurality of groups of brushes swing along with the vibration of the ultrasonic generator body, and mixed raw materials in the material container can be synchronously scattered, so that the raw materials are more fully mixed in the material container.

The application relates to the technical field of lithium ion battery positive electrode materials, in particular to a nickel-rich positive electrode material and a preparation method and application thereof. The preparation method is as follows: in a vacuum and high-temperature environment, a mixed solvent composed of acid, an organic solvent and an aqueous solution has a low boiling point, can be quickly self-evaporated, metal cation M1, metal cation M2, lithium ions, nickel ions and anions in the mixed solution are quickly precipitated, an atomically mixed uniform metal salt, nickel salt and lithium salt mixture is obtained, then high-performance nickel-rich positive electrode material with high crystallinity, small lithium-nickel mixing degree and accurate stoichiometric ratio is obtained through solid-phase sintering; the preparation method is simple, atomically mixed material can be realized, no element is lost in the whole synthesis process, the atomic utilization rate is high, the stoichiometric ratio is accurately controlled, and the method is suitable for wide application.

The invention discloses an adsorption rectification system, and relates to the technical field of adsorption rectification. The system comprises a desulfurization box, the input end of the desulfurization box communicates with three cooling water distribution groups connected in sequence, each cooling water distribution group comprises a compressor fixedly connected with the input end of the desulfurization box, the input end of each compressor is fixedly connected with a water distributor, and the input end of each water distributor is fixedly connected with a cooler. When desulfurization drying operation of an adsorption bed body I in an adsorption bin I is saturated, an electric push rod is started to push a connecting rod to eject transmission rods, and the two transmission rods are driven to be matched with a transmission assembly to push two cover plates to quickly move away from each other in the guide direction of a top sliding table, and meanwhile, the cover plates are separated from covering of the top of the adsorption bin I; and the top of the second adsorption bin is covered, so that gas entering the desulfurization box enters the second adsorption bed body through the second adsorption bin to be subjected to separation and drying operation, and meanwhile, the regeneration assembly is matched to realize back-blowing regeneration of the first adsorption bed body.

The utility model provides a plug type feeding system of an injection molding machine, which belongs to the technical field of injection molding equipment, and comprises a feeding barrel, a feeding cavity is formed in the feeding barrel, and a heating piece is further arranged on the feeding barrel; the material pushing rod is arranged in the feeding cavity, and the material pushing rod can do linear reciprocating motion in the feeding cavity; the connecting plate is arranged close to the discharging opening of the feeding barrel, a connecting cavity is formed in the connecting plate, and the connecting cavity communicates with the feeding cavity and the pushing system; the material distributing shuttle is movably arranged in the feeding cavity; the material pushing device has the advantages that the material pushing rod is used for pushing and feeding powder in the injection molding machine, the mixing degree of the two kinds of powder in the feeding process can be reduced, mutual independence of the two kinds of powder can be kept, it is avoided that the two kinds of powder are excessively mixed to form one color, and color-mixed finished products with different-color spots or different-color areas on the outer surfaces can be conveniently and finally formed; the diversity of injection molding products is improved, meanwhile, the injection molding process is reduced, and the injection molding efficiency is improved.

The utility model discloses a feeding scale with a screening function. The feeding scale comprises a feeding scale main body, the bottom of the fixing plate is fixedly connected with the tops of the front surface and the back surface of the feeding scale main body; and the bottom of the supporting column is fixedly connected with the top of the cushion block. According to the scheme, the supporting column, the rotating column, the connecting column, the transverse plate, the movable adjusting plate, the screen and related structures are arranged, the screen is replaced according to the size of materials, the whole screen is inclined backwards through inertia of the materials, the rotating column rotates, the limiting block can prevent the rotating column from rotating excessively, and the telescopic baffle is matched for use; impact force brought by stacked materials can be relieved, the screening capacity can be improved, the materials are screened before weighing, the situation that the materials with different particle sizes are mixed during weighing is reduced, under the specific condition that the material size needs to be balanced, the materials can be screened through screening equipment in advance, and the screening efficiency is improved. Therefore, a certain amount of working procedures are reduced, and working efficiency is improved.

The application relates to the technical field of battery positive electrode materials, in particular to a synergistically modified high-voltage positive electrode material and a preparation method and application thereof, which comprises a bulk particle, a doped layer coated on the surface of the bulk particle and a coating layer coated on the surface of the doped layer; the bulk particle comprises lithium nickel cobalt manganese oxide; the doped layer is lithium nickel cobalt manganese oxide doped with fluorine elements in a bulk phase; and the coating layer comprises a lithium fluoride coating layer and lithium nickel cobalt manganese titanium oxide particles embedded in the lithium fluoride coating layer. The preparation method comprises the following steps: firstly, a nickel cobalt manganese hydroxide precursor is prepared by adopting a coprecipitation method; then, a doped layer and a coating layer are synthesized on the surface of the nickel cobalt manganese hydroxide precursor by adopting a solvothermal method; finally, calcination treatment is carried out to obtain the synergistically modified high-voltage positive electrode material. The synergistic modification strategy of bulk phase doping and surface coating effectively guarantees the stability of the interface and bulk structure, the preparation process is simple, and the electrochemical performance of the positive electrode material under high voltage, high cycle, high rate or high-temperature environment is improved.

The present application provides a positive electrode active material and a method for preparing the same. The chemical formula of the positive electrode active material is Li 1+a [Ni x Co y Mn z M1 b M2 c O 2 , where 0.05 < a < 0.5, 1 / 3 ≤ x < 1, 0 ≤ y < 1 / 3, 0 ≤ z < 1 / 3, 0 < b < 0.1, 0 < c < 0.1, x + y + z + b + c = 1, M1 is one or more elements selected from Mo, Zr, W, Sb, Nb, Te, and Ga, M2 is one or more elements selected from Mg, Al, Ca, and Ti. The positive electrode active material includes a lithium-rich layer extending from the particle surface to the particle interior. On a cross-section passing through the geometric center of a single particle of the positive electrode active material, the ratio of the average Li element content per unit area in the lithium-rich layer to the average Li element content per unit area in the non-lithium-rich layer is (>1 - 1.5):1. The positive electrode active material of the present application has a high tap density and improved structural stability, effectively improving the energy density of the battery and improving the cycle performance and safety performance of the battery. The present application also provides a secondary battery and an electrical device including the positive electrode active material.

The invention discloses an anti-cross-mixing sampling device for geological exploration, and relates to the technical field of sampling equipment.The anti-cross-mixing sampling device comprises a supporting column, a rotating plate is arranged at the upper end of the supporting column, meanwhile, an adjusting plate is arranged on the outer surface of the supporting column, a collecting assembly is arranged on the outer surface of the rotating plate, and soil is collected through the collecting assembly; according to the cross-mixing-preventing sampling device for geological exploration, when a moving block moves, an arc-shaped plate arranged at the end of the moving block is driven to move, soil in a conduction pipe is guided out, meanwhile, the moving block is limited through a second elastic piece, and when a telescopic rod moves upwards, soil in the conduction pipe is separated through the acting force of the second elastic piece; meanwhile, a multi-layer container structure is adopted, samples from different sources are stored in each layer in an isolated mode, mixing is prevented, meanwhile, reverse flowing and cross contamination of the samples are prevented through partitions, a conveying pipeline is cleaned in cooperation with externally-arranged cleaning equipment, and the situation that the samples are mixed is reduced.

The invention relates to the technical field of soil samplers, in particular to a soil depth multi-section sampler which comprises a first barrel and a second barrel, and the upper portion of the second barrel is slidably mounted on the lower portion of the first barrel; the device further comprises a supporting device, a soil crushing device, a sampling device, an advancing device, a third barrel, a lifting barrel and a plurality of groups of discharge pipes, the top end of the first barrel is mounted on the supporting device, the supporting device is used for driving the first barrel to ascend and descend, the top end of the third barrel is connected with the bottom end of the second barrel, and the lifting barrel is mounted on the inner side walls of the second barrel and the third barrel; the bottom end of the lifting cylinder is arranged to be in a horn mouth shape, the multiple sets of discharging pipes are all arranged on the upper portion of the outer side wall of the lifting cylinder in a communicating mode, and the soil crushing device is arranged in the lifting cylinder and used for crushing soil; according to the deep soil sampling device, the convenience of deep soil multi-section sampling is improved, the limitation of the length of a drill rod on sampling is reduced, the use convenience is improved, the mixing condition of soil at different depths is reduced, and the accuracy of soil multi-section sampling is improved.

The present invention relates to the field of waste liquid treatment, and in particular to a waste liquid treatment device for a pig breeding farm, including a bearing frame, a water inlet pipe, a guide plate, a conveyor belt and a filter screen I, etc.; the front and rear of the bearing frame are fixedly connected with a fixed frame; the left part of the bearing frame is connected with a water inlet pipe; the left part of the bearing frame is fixedly connected with a guide plate, and the front and rear parts of the guide plate are provided with a through groove II, and the guide plate is designed to be inclined; conveyor belts are installed in all fixed frames, and the bottoms of all conveyor belts are fixed by bearing frames and guide plates; and a number of filter screens I are fixedly connected to all conveyor belts. The present invention drives the filter screen I to rotate upward through the conveyor belt, transfers the solid objects accumulated on the conveyor belt and the filter screen I upward, and transfers the solid objects accumulated on the conveyor belt and the filter screen I into a collection container, so as to prevent the solid objects from blocking the conveyor belt and the filter screen I, thereby reducing the circulation speed of the waste liquid and affecting the treatment efficiency of the waste liquid.

The application provides a TiNb2O7 synergistically modified high-nickel ternary positive electrode material and a preparation method and application thereof. The preparation method of the TiNb2O7 synergistically modified high-nickel ternary positive electrode material is characterized in that: TiNb2O7 with a Wadsley-Roth structure is used, an in-situ self-assembly process of early surface anchoring and later gradient diffusion is used, and a multi-level structure of "surface coating-transition layer doping-core unchanged" is constructed in the particle interior. Ti and Nb elements in the TiNb2O7 diffuse to the bulk phase in the high-temperature crystallization and self-assembly process, and the structure is stabilized from the interior. The TiNb2O7 which is not diffused or partially converted and a lithiumated product thereof remain on the surface to form a protective layer, so that the capacity, stability and rate performance of the high-nickel material are synergistically improved.