3624 results about "Centrifugal separation" patented technology

The invention discloses an intelligent control method of a zinc ash-containing tail gas purification system, which relates to the technical field of tail gas purification systems, and comprises the following steps of: firstly, continuously monitoring a condensation process of high-temperature zinc-containing steam in a cooler through a monitoring device, and collecting zinc steam condensation conditions and particle generation data of tail gas under different temperature and pressure states in real time; according to the invention, intelligent monitoring, signal analysis, machine learning identification and dynamic regulation and control are combined to realize accurate control of the zinc-ash-containing tail gas purification system. Key features are extracted through real-time monitoring and data preprocessing, intelligent recognition of particle concentration is achieved based on feature vectors and machine learning, the rotating speed of the centrifugal separator is adjusted in a self-adaptive mode, and efficient separation and system stability are ensured by linkage with pulse back-blowing dust removal. Compared with a traditional fixed rotating speed mode, the tail gas purification efficiency is improved, the maintenance cost is reduced, the service life of equipment is prolonged, the automatic operation capacity is enhanced, and the system is kept in the optimal working state during load fluctuation.

The invention relates to a silicon-carbon composite material and a preparation method and application thereof.The preparation method comprises the steps that a porous graphite raw material is subjected to acid pickling and smashing to obtain pretreated porous graphite, then the pretreated porous graphite is soaked in a carbon precursor solution in a vacuum mode, carbonization treatment is conducted after centrifugal separation, pores of the porous graphite are filled with carbides, physical activation is conducted, and the silicon-carbon composite material is obtained; the preparation method comprises the following steps: forming pores in a carbide to form a graded pore structure to obtain a porous graphite composite material, then carrying out silicon deposition in a fluidized bed to obtain a uniform nano silicon layer, and then carrying out carbon coating treatment to obtain a silicon-carbon composite material; the graphite with relatively low cost is adopted as a matrix, high capacity and long cycle performance of the graphite-based silicon-carbon negative electrode material are realized through hierarchical pore structure design, carbonization-activation synergistic pore forming and interface deposition process optimization, and the graphite-based silicon-carbon negative electrode material can be applied to the fields of power batteries and high-energy-density energy storage, especially the field of lithium ion batteries and has wide application prospects. The expansion rate of the battery can be reduced, and the specific capacity, cycling stability and safety of the lithium ion battery can be improved.

The invention discloses a centrifugal separation device for kelp processing and a use method of the centrifugal separation device, and belongs to the technical field of kelp centrifugal separation devices. Comprising a first cavity cylinder, a second cavity cylinder, a second servo motor and a separation disc, a plurality of sets of dynamic adjusting mechanisms are sequentially arranged and installed at the outer edge of the upper surface of the separation disc in a circumferential mode, a dehydration cylinder is formed through the dynamic adjusting mechanisms, and gas is injected in a reciprocating mode in the centrifugal separation process through dynamic adjustment; compared with a passive scheme depending on a flexible lining or rotating speed adjustment in the background technology, the active intervention mechanism can adjust the kelp distribution state in real time, and a moisture discharge channel is prevented from being blocked.

The invention discloses a preparation method and application of an amorphous nickel-cobalt-iron phosphate anode catalyst, and belongs to the technical field of alkaline water electrolysis hydrogen production, the preparation method comprises the following steps: (1) dissolving transition metal salt in a solvent, and stirring to obtain a metal salt solution; (2) dissolving phosphate in a solvent, and stirring to obtain a phosphate solution; and (3) adding the phosphate solution into the metal salt solution for reaction, washing with deionized water and ethanol, centrifugally separating, and drying to obtain the amorphous nickel-cobalt-iron phosphate anode catalyst. According to the preparation method and application of the amorphous nickel-cobalt-iron phosphate anode catalyst, process safety improvement and environmental friendliness optimization are achieved through an all-water-phase green synthesis system, the obtained catalyst shows excellent performance in an AEM electrolytic cell, the cell voltage is only 1.87 V under the current density of 2 A / cm, and the method has remarkable industrial application prospects.

The invention relates to the technical field of blood potassium detection, in particular to a blood potassium detection paper-based sensor and a preparation method and application thereof.The sensor is obtained by integrating a substrate, a sensing electrode and a whole blood microfluid channel, and the sensing electrode is located between the substrate and the whole blood microfluid channel; the whole blood microfluid channel comprises a serum diffusion area, a whole blood separation area positioned above the serum diffusion area and a blood potassium detection area positioned below the serum diffusion area; a blood separation membrane is also arranged in the whole blood separation area; the substrate is qualitative filter paper, and the sensing electrode comprises an all-solid-state PBA working electrode and an Ag / AgCl reference electrode; compared with the prior art, calibration is not needed when potassium ions in whole blood are detected, the whole blood sample can be directly used, centrifugal separation is not needed, the detection speed is increased, the hemolysis problem of the whole blood sample in blood potassium detection can be avoided, and the detection sensitivity, accuracy and stability are further improved.

The invention discloses a preparation method of an In2O3-Cu-Cu2O ternary heterojunction catalyst and a preparation method of the In2O3-Cu-Cu2O ternary heterojunction catalyst. The method comprises the following steps: at room temperature and normal pressure, firstly, dissolving indium chloride tetrahydrate in a mixed solvent of ethylenediamine-ethylene glycol (the volume ratio is 1: 20-1: 30) and dihydric alcohol amine to obtain a homogeneous solution; then transferring the solution to a hydrothermal kettle, adding deionized water and Cu2O powder with different volumes, and carrying out hydrothermal crystallization at 160-200 DEG C for 10-14 hours; and centrifuging the obtained precipitate, alternately washing with water and alcohol for 2-3 times, carrying out vacuum drying at 60 DEG C for 5-7 hours, heating to 600 + / -10 DEG C at a speed of 3-5 DEG C / min in an N2 atmosphere, calcining for 3 hours, and cooling along with a furnace to obtain a target product. By adjusting the adding amount of the deionized water, the mass proportion of the three phases of In2O3, Cu and Cu2O can be continuously adjusted and controlled, and controllable preparation from'rich copper 'to'rich cuprous oxide' and'stable ternary 'is achieved.

The invention provides application of a turbellarian worm extract in preparation of a product for promoting wound healing, a biological agent for promoting the proliferation activity and / or migration ability of fibroblast NIH3T3, a biological agent for improving the wound healing rate and the decrustation time and a biological agent for improving the collagen fiber deposition type in the wound healing process. The biological preparation is used for promoting regeneration of skin appendage organs in the wound healing process. Wherein the extraction of the turbellarian worm extract comprises the steps of turbellarian worm cleaning, tissue crushing, alcohol extraction, centrifugal separation and concentration drying. The turbellarian worm extract has good capacity of promoting wound healing, and has the effects of effectively improving skin wound healing efficiency, shortening decrustation time, inhibiting scar formation in the wound healing process, promoting regeneration of skin appendage organs in the wound healing process and the like.

The invention discloses tea juice treatment equipment, and relates to the technical field of tea juice treatment. The device comprises a separation net provided with a through hole, a cutter head and a dial wheel plate crushing assembly which are coaxially arranged up and down, an adjustable magnetic coupling driving part composed of an electromagnet and a planetary gear, a bidirectional flow centrifugal separation chamber, a filter element fine filtration cavity and a non-stop screw deslagging mechanism. Flushing wastewater is actively pre-crushed and then tangentially guided to a centrifugal cavity, and solid and liquid are rapidly separated under the synergistic effect of centrifugal force and suction pressure difference; a liquid phase is subjected to center suction, refined filtration, clarification and discharge, and a solid phase settles along the inner wall and is automatically conveyed to the outside for sealed collection. According to the system, the rotating speed is adjusted in a closed-loop mode through online particle monitoring, load self-adaption and low-energy-consumption operation are achieved, filter screen blockage, shutdown cleaning and peculiar smell diffusion are avoided, and the system is suitable for on-site up-to-standard treatment of tea residue sewage in the peak period of a catering store.

The invention discloses a rare earth boride nano material as well as a preparation method and application thereof. The phase state of the rare earth boride nano material is REB6 or REB4; the preparation method comprises the following steps: S1, respectively weighing a compound raw material containing an RE element and a compound raw material containing a B element; s2, adding an additive, and fully grinding; s3, reacting under the protection of inert gas; s4, after the reaction is finished, excessive methanol is added, centrifugal separation is performed after no bubbles emerge, and a precipitate A is reserved; s5, adding diluted hydrochloric acid for soaking, and performing centrifugal separation again to reserve a precipitate B; and S6, washing the precipitate B with deionized water, and drying to obtain the rare earth boride nano material. According to the preparation method disclosed by the invention, a normal-pressure and low-temperature preparation method is adopted, the pure-phase rare earth hexaboride nanocrystal can be obtained at normal pressure and the temperature as low as 300 DEG C, and no active metal elementary substance needs to be introduced in the preparation process.

The invention relates to the technical field of green manufacturing, in particular to a manufactured cutting fluid recovery treatment method based on an oil-scrap separation system, which comprises the following steps: step 1, dynamic viscosity regulation and control pretreatment; 2, gradient centrifugal separation, wherein the pretreated mixed liquid is subjected to three-stage centrifugal separation; 3, interface adsorption fine treatment is conducted, specifically, the oil liquid obtained after centrifugal separation flows through a layered variable-porosity adsorption tower, and regeneration of an adsorption material is triggered according to the pressure drop change; and step 4, optimizing closed-loop parameters, and dynamically correcting the control parameter thresholds in the steps 1-3 by collecting and processing the associated data of the process parameters and the final oil metal residual quantity. According to the method, through precise matching and dynamic adjustment of multiple steps, the separation effect can be improved to the maximum extent in the green manufacturing and cutting fluid recycling process, waste emission and resource waste are reduced, and the purposes of energy conservation and emission reduction are achieved.

The invention discloses a plant-source nutritional supplement based on glycoside compounds and a preparation method thereof, and relates to the technical field of preparation of plant-source nutritional supplements.The preparation method comprises the steps that raw materials are prepared; the preparation method comprises the following steps: respectively carrying out ultrasonic-assisted extraction on flavonoid glycoside, saponin and geniposide raw materials to obtain an extracting solution; carrying out centrifugal separation on the extracting solution, taking supernate, and then purifying by adopting a macroporous resin adsorption method to obtain a purified glycoside compound solution; mixing the purified glycoside compound solution with lycium barbarum polysaccharide, Chinese yam starch, vitamin E and other auxiliaries in proportion, and uniformly stirring to form a mixed solution; carrying out spray drying on the mixed solution to obtain a powdery nutritional supplement; and screening the powdery nutritional supplement. The high-purity plant source glycoside compound and the functional auxiliary agent are scientifically compounded, and ultrasonic extraction, resin purification and precise process control are combined, so that the integrated improvement of activity synergy, quality stability and personalized scene adaptation of the nutritional supplement is realized.

The invention discloses a method for chemically-assisted pyrolysis recovery of carbon fibers in a thermosetting composite material and full-quantitative reutilization of products, which comprises the following steps: firstly, cutting and sorting a retired wind power blade thermosetting composite material to obtain blade blocks, then treating the blade blocks by using a pretreating agent, and then recovering the pretreating agent to obtain the carbon fibers in the thermosetting composite material. And performing low-temperature pyrolysis on the blade blocks treated by the pretreatment agent by using a swelling agent, recycling the regenerated carbon fibers, and finally recycling the swelling agent and a resin degradation product. According to the method, high-efficiency thermally induced separation of the carbon fibers and the matrix resin is realized, and the used citric acid reagent is efficiently recycled by deeply researching the chemical characteristics of a degradation product and a pretreatment agent. According to the method, centrifugal separation and reduced pressure distillation technologies are combined, the swelling agent is separated out, the resin polymer is degraded, and full-quantitative recovery of solid-phase and liquid-phase products in the process is achieved. And the recovered reagent is directly used for the next round of material degradation treatment, so that the reagent consumption and the treatment cost are greatly reduced, meanwhile, the environmental pollution risk is reduced, and a recovery closed loop is realized.

The invention provides a dirty oil sludge treatment method and skid-mounted dirty oil sludge treatment equipment, the method comprises treatment of dirty oil, aged oil, oily sludge and the like, and the main steps are as follows: short-time demulsification is performed through special equipment, and then primary and secondary centrifugal separation is performed to separate water, solid residues and other impurities in the dirty oil sludge, so that the dirty oil sludge is treated. And reduction and recycling of the oil sludge are realized. According to the skid-mounted dirty oil sludge treatment equipment, dirty oil sludge is pumped to a filter to remove large-particle-size impurities, then the dirty oil sludge enters a preheater to be heated, and the heated dirty oil enters a core treatment unit to be subjected to high-energy physical nucleation demulsification; feeding the demulsified sump oil into a horizontal screw centrifuge for solid-liquid separation, and bagging the separated solid residues or feeding the separated solid residues into a sludge drying pry; feeding a separated liquid phase into a three-phase disc centrifuge, carrying out oil-water separation, conveying separated oil out for refining, and conveying separated water out to a sewage treatment plant. And finally, physical and chemical inspection of an oil-phase, water-phase and solid-phase product is inspected, and operation parameters and the technological process are adjusted.

The invention relates to the technical field of zinc glycinate production, and provides a zinc glycinate chelate preparation method, which comprises: (1) pre-mixing glycine and nano zinc oxide, adding into water, and carrying out microwave treatment and ultrasonic-assisted synergistic treatment to prepare a glycine suspension; (2) adding L-ascorbic acid, stirring, maintaining the temperature at 58-62 DEG C for 30-40 minutes, heating to 74-80 DEG C, and maintaining the temperature at 74-80 DEG C for 2-3 hours; and (3) cooling to room temperature, standing, centrifugally separating, and drying to obtain the zinc glycinate chelate. According to the preparation method of the glycine zinc chelate, the production cost is effectively reduced and the production efficiency is improved under the condition that the purity and the stability of the product are ensured.

To provide an improved system and method for balancing a centrifuge rotor.SOLUTION: A hub assembly 10 for a centrifuge rotor 12 includes a rotor hub 14 including a head portion 20, an elongated shaft portion 22 extending axially away from the head portion 20, and a central bore 102 extending through the head and shaft portions 20, 22. A system and method for balancing a centrifuge rotor 12 in which a head 20 includes a plurality of balance holes 52 each configured to selectively receive at least one balance weight 16 for balancing the centrifuge rotor 12.SELECTED DRAWING: Figure 4

The invention provides an immunodetection method of a multi-index immune checkpoint detection kit, which belongs to the technical field of immunodetection and comprises three main stages of sample preparation, immune reaction and data analysis. The method comprises the following steps: firstly, carrying out centrifugal separation to obtain a plasma sample, and preparing a fluorescent microsphere coupled capture antibody and biotin labeled detection antibody compound; then carrying out immune reaction, forming a sandwich type immune complex through specific binding, and adding streptavidin marked by phycoerythrin for signal amplification. Detecting a fluorescence signal by adopting a flow cytometer to obtain an original data matrix; a contribution feature vector, a utility feature vector and an expression feature matrix are extracted through a feature decomposition algorithm, and a deep learning model of a total-score-total structure is established for data analysis. Finally, a detection report containing a quantitative result, an importance score and reliability evaluation is generated, and the technical problem that in the prior art, the analysis accuracy of a multi-index immune checkpoint detection result is insufficient is solved.

The invention discloses a metal particle Ni supported catalyst based on fly ash. The preparation method comprises the following steps: firstly, carrying out alkali fusion on fly ash to prepare powder; dissolving the powder and Ni (NO3) 2.6 H2O in a mixed solution of distilled water and absolute ethyl alcohol, adding polyethylene glycol, and performing ultrasonic stirring to obtain uniform dispersion liquid; and finally, continuously performing ultrasonic stirring on the dispersion liquid, performing hydrothermal reaction, cooling, performing centrifugal separation, drying, calcining, cooling and grinding to obtain the catalyst. The coal ash derivative zeolite is adopted as a carrier of the catalyst, Ni is loaded on the carrier to improve the specific surface and effective active sites of the carrier, the effective catalytic specific surface area of the catalyst is effectively improved, and the catalytic activity is improved, so that a stable and safe catalyst material for preparing methane through CO2 hydrogenation with high activity and selectivity is obtained; the space time yield of methane is high.

The invention belongs to the technical field of oil exploitation, and particularly relates to an oil exploitation device with a gravel filtering function. The oil exploitation device comprises a collecting frame, the inner bottom wall of the collecting frame is fixedly connected with a filtering cylinder through a supporting rod, the upper end of the filtering cylinder is fixedly communicated with two oil conveying pipes, and the two oil conveying pipes are both in butt joint with an oil pipeline; and the centrifugal separation mechanism is used for achieving separation of petroleum and gravel through the effect of centrifugal force, the centrifugal separation mechanism comprises filtering holes formed in the peripheral side wall of the filtering cylinder, and a rotational flow block is rotationally installed in the filtering cylinder. Through the arrangement of the centrifugal separation mechanism and the design that the upper portion of a rotational flow block is inclined and contracts inwards, mixed fluid is guided to form spirally-descending rotational flow, and petroleum is rapidly separated through filtering holes through centrifugal force; and by arranging the gravel conveying mechanism, a separation-conveying continuous operation chain is formed, and the blocking risk caused by gravel accumulation is thoroughly eliminated.

The invention relates to a preparation method of a terephthalic acid and 2-methylimidazole organic framework catalyst, and relates to a preparation method of a high polymer material catalyst, the preparation method comprises the following steps: weighing C6H4 (COOH) 2 and 2-methylimidazole, dissolving C6H4 (COOH) 2 and C4H6N2 in N, N-dimethylformamide (DMF), weighing zinc nitrate hexahydrate (Zn (NO3) 2.6 H2O), dissolving in DMF, and preparing into a solution; the preparation method comprises the following steps: mixing a C6H4 (COOH) 2 solution and a C4H6N2 solution in proportion, and uniformly stirring; slowly adding the mixed ligand solution into a mixed solution of zinc nitrate hexahydrate (Zn (NO). 6HO) dissolved in DMF (Dimethyl Formamide), and transferring into a high-pressure reaction kettle for reaction; after cooling, centrifugally separating to obtain a white solid product, washing with methanol, and drying to obtain the Zn-MOF catalyst. The Zn-MOF catalyst provided by the invention can be widely applied to polyester synthesis, esterification reaction and other organic catalytic reactions, and especially has significant advantages in PBAT synthesis.

The invention discloses a cutting fluid full-automatic centralized liquid supply control method and system, cutting fluid concentration data and liquid supply system pressure data are obtained through a sensor array, real-time monitoring data are generated by adopting a high-frequency sampling technology, and if the cutting fluid concentration data deviates from a preset threshold range or the liquid supply system pressure data exceeds a stable range, the cutting fluid is monitored. If so, generating an abnormal signal; according to the abnormal signal, the operation frequency of a liquid supply pump is adjusted through a proportional-integral-differential algorithm, a closed-loop control system is formed to maintain a target pressure value, and meanwhile the opening value of a liquid distribution valve is adjusted according to the concentration deviation signal; and the cutting fluid return liquid is extracted from the adjusted liquid supply system, the cutting fluid return liquid is treated through a multi-stage filtering device and a centrifugal separation device, and if it is detected that the impurity content of the cutting fluid return liquid is lower than a preset threshold value, it is judged that purification treatment is completed. The stable performance of the cutting fluid can be kept, the service life of equipment is prolonged, the processing quality and the production efficiency are improved, and the cutting fluid has important practical value.

The invention relates to the technical field of high polymer materials, and discloses a method for continuously producing brominated polystyrene, which comprises the following steps: I, preparing raw materials, ensuring the basic quality of the product by high-quality raw materials, and optimizing reaction conditions, improving the yield and reducing unnecessary byproducts by correct selection; step II, premixing and heating, full premixing ensures the consistency of the materials, and more uniform reaction can be realized. According to the method for continuously producing brominated polystyrene, continuous supply of materials is ensured by utilizing an automatic storage and conveying system, uniform dispersion and stable temperature rise of the materials are ensured by adopting a continuous feeding mixer and an indirect heating system, and efficient bromination reaction is performed by using a microchannel reactor; products are rapidly separated and purified by means of a continuous centrifugal separator and a membrane separation technology, and an automatic quality control system is combined with multiple analytical instruments to ensure that the quality of each batch of products is consistent, so that the effect of efficient, stable and continuous production can be achieved.

The invention provides a preparation method of a two-dimensional high-strength coating material, which comprises the following steps: under the protection of inert gas, dissolving melamine and trimesoyl chloride as reaction monomers in a solution A, adding triethylamine as an acid-binding agent, and promoting amidation reaction through magnetic stirring; after the reaction is finished, washing with saturated saline solution and NaHCO3 to remove impurities, and then obtaining high-purity two-dimensional polymer powder through the steps of solution mixing, ultrasonic treatment, centrifugal separation and the like. And finally, dissolving polymer powder in the solution F to prepare two-dimensional polymer solutions with different concentrations, and coating the two-dimensional polymer solutions on the surface of a substrate pretreated by acetone and isopropanol to obtain a flat and compact coating film. The triethylamine is adopted as the acid binding agent, so that the purity and the reaction efficiency of the polymer are improved, the preparation controllability and the structural uniformity of the coating material are remarkably improved, and the high-performance coating requirements in the fields of machinery, chemical protection and the like are met.

The utility model belongs to the technical field of sugar alcohol preparation, and relates to a system for co-producing L-arabinose and caramel pigment by using xylose chromatography raffinate, which comprises a raw material tank, a nanofiltration membrane separator, a chromatography separation device, an evaporation concentration tank, a crystallization tank, a centrifugal separator and a dryer which are sequentially communicated by pipelines, and the browning reaction assembly is used for mixing the raffinate and the centrifugal mother liquor and then carrying out browning reaction treatment to prepare caramel pigment. The chromatographic separation device is used for separating an extracting solution and raffinate from the flowing nanofiltration permeate, the evaporation concentration tank and the crystallizing tank are used for concentrating and crystallizing the flowing extracting solution into massecuite, the centrifugal separator is used for separating the flowing massecuite into moist sugar and centrifugal mother liquor, and the dryer is used for drying the flowing moist sugar into L-arabinose crystals. According to the utility model, raffinate and centrifugal mother liquor are mixed to prepare a caramel pigment liquid product, so that a caramel pigment additional product is obtained while the utilization rate of saccharide resources is improved.

The invention provides a preparation method of non-denatured type II collagen capable of increasing bone mineral density and improving bone elasticity, and belongs to the technical field of biologication.The preparation method comprises the steps that an EDTA-citric acid buffer solution containing beta-mercaptoethanol is adopted for decalcifying cartilage, a supercritical CO2 extraction technology is adopted for degreasing, and the collagen is obtained; alkaline protease and collagenase II are adopted for substrate directional enzymolysis and gradient digestion; then the non-denatured type II collagen is separated by adopting three-phase centrifugal separation, and the non-denatured type II collagen with high extraction rate, high purity and high structural integrity can be obtained by adopting bionic H column chromatography purification.

A centrifugal separation system includes a centrifugal separator, a liquid feed mixture conduit, a light phase conduit, a heavy phase conduit, and a flow control system. The flow control system includes a controller, a flow control valve arranged in a light phase conduit, a liquid feed mixture measuring device, and at a light phase measuring device and / or a heavy phase measuring device. The controller is configured to control the flow control valve based on measurements from the liquid feed mixture measuring device and measurements from the light phase measuring device and / or the heavy phase measuring device.

The invention discloses a method and equipment for melting, separating and extracting iron and rare earth in rare earth iron ore. The method comprises the following steps: obtaining a molten material of rare earth iron ore and reducing agent powder at 1200-1500 DEG C; the molten material is subjected to centrifugal treatment through a centrifugal separation solidification machine, the molten material is gradually cooled and solidified in the centrifugal treatment process, four coagulum layers are formed, the four coagulum layers are cut and separated, and iron and rare earth enriched substances are obtained; and the rare earth enrichment is subjected to hydrochloric acid leaching and oxalic acid or carbonate precipitation process treatment, and then mixed rare earth precipitation is obtained. According to the method, the iron recovery rate can reach 99%, the grade of a rare earth enriched product can reach 59% or above, the rare earth recovery rate can reach 80% or above, the separation efficiency is high, the iron and rare earth recovery rates are high, the technological process is short, the method is environmentally friendly, equipment is simple, and the cost is low.

The invention provides a cement kiln bypass ventilation and high-chlorine material treatment device, and relates to the technical field of bypass ventilation devices.The spraying mechanism comprises a fixed rotating shaft, the fixed rotating shaft is fixedly installed through a fixed output shaft and a servo motor, and a first bevel gear is arranged on the fixed rotating shaft; a first bevel gear is rotatably mounted on the annular steel tank body, a second bevel gear is engaged with the circumferential surface of the first bevel gear, a third bevel gear is engaged with the circumferential surface of the second bevel gear, a first fixing shaft is rotatably mounted on the second bevel gear, and the first fixing shaft is fixedly mounted on the annular steel tank body. A spiral blade centrifugal separation unit and a rotational flow plate demister fine treatment unit are innovatively integrated in the device, a spiral blade adopts a variable pitch design and is driven by a servo motor, the rotating speed can be adjusted according to the working condition of flue gas, airflow is driven to form a strong rotational flow field, and high-chlorine dust with large particle size in the flue gas rapidly moves towards a tank wall under the action of centrifugal force.

The invention relates to a dual-rare earth metal catalytic nano material, a diaphragm and a preparation method and application thereof. The preparation method comprises the following steps: carrying out hydrothermal reaction on an aqueous solution containing a carbon source, a hard template, a graphene oxide dispersion liquid, a nitrogen source, a phosphorus source, cerium salt and neodymium salt; then carrying out centrifugal separation to obtain a precipitate, and generating a precursor containing Ce and Nd rare earth bimetallic modified nitrogen and phosphorus doped graphene coated microspheres; and carrying out chemical etching on the precipitate after heat treatment to obtain the dual-rare earth metal catalytic nano material (HCS-coated NPrGO / CeNd). The HCS-coated NPrGO / CeNd can be used as a modification material of a lithium-sulfur battery diaphragm, not only can catalyze the conversion of polysulfide, but also can inhibit the shuttle effect of the polysulfide, so that the lithium-sulfur battery has relatively high capacity under high-rate charge and discharge, and has relatively low capacity fading rate in a high-rate long-cycle test.

The invention belongs to the technical field of grease preparation, and particularly relates to a preparation method and application of diglyceride oil with a weight reducing effect. Comprising the following steps: firstly, adding grease into a basic nutrient solution, adding strains for fermentation, and filtering to obtain a glycolysis product; adding glycerol into the glycolysis product, carrying out lipase esterification reaction, and carrying out centrifugal separation to obtain an oil phase; the method comprises the following steps: degrading triglyceride by adopting dominant strain fermentation, then adding glycerol, and carrying out esterification reaction under the action of dominant compound lipase to obtain the diglyceride oil. According to the method, the 1, 3-diglyceride can be selectively generated, the proportion of dominant grease of the 1, 3-diglyceride can be increased, and research shows that the prepared diglyceride oil has good weight reduction and fat reduction effects and has a good application prospect.

The invention relates to a diesel engine oil pan engine oil supply device and method, and relates to the technical field of diesel engines, the device comprises a filter element rotationally arranged in an oil pool body at one end of the bottom of an oil pan, a first driving mechanism is arranged above the filter element, and the first driving mechanism is used for driving the filter element to rotate through rotation of a crankshaft in an upper crankcase; purifying the engine oil through centrifugal separation; the device further comprises an oil supply pipe, one end of the oil supply pipe extends to the position below the filter element, the other end of the oil supply pipe extends to the crankshaft, and an oil supply pump used for conveying purified engine oil into the lubricating system is arranged on the oil supply pipe. The device further comprises a particle storage ring sleeving the upper part of the filter element. According to the oil supply device, the functions of lubricating additive particle storage, discharging, adding and the like are integrated in the oil pan and are tightly combined with the engine oil purification function, an efficient oil supply system is formed, the working efficiency and reliability of the whole lubricating system are improved, and the lubricating performance of engine oil can be greatly improved by adding the lubricating additive particles.