10results about How to "Precise process parameters" patented technology

The invention discloses a gas extraction drilling track inversion and control system, and relates to the technical field of gas extraction, and the key points of the technical scheme are that the system comprises a high-gas coal seam rapid control elimination and reduction system and a gas injection flow increasing dynamic evaluation system; according to the rapid control elimination and reduction system for the high-gas coal seam, a method of combining experimental research, numerical simulation and on-site industrial tests is adopted, the coal seam gas occurrence rule of a working face of a Chengne mining area is obtained, the multi-component gas competitive adsorption rule of a three-soft coal seam is defined, and therefore gas injection driving key technical parameters of a coal seam gas abnormal target area are mastered; a gas injection drive gas-carrying rapid and accurate extraction technical system suitable for the gas abnormal area of the Chengne mining area is formed; according to the gas injection flow increasing dynamic evaluation system, working parameters are designed and monitored, the gas concentration is accurately monitored, and real-time detection and automatic early warning are achieved.

The invention relates to an aluminum profile extrusion process energy consumption control method and system, and the method comprises the steps: constructing a control network with an industrial computer as an upper computer and controllers of an extruder, an aluminum bar heating furnace and a mold heating furnace as lower computers, designing main control software for the industrial computer, building the communication between the upper computer and the lower computer through a TCP / IP protocol, and carrying out the control of the upper computer and the lower computer; meanwhile, data exchange and real-time information acquisition with the MES system are carried out; process parameters in the aluminum profile extrusion process are obtained from an MES system, real-time data of the process parameters are input into the machine learning model, and the optimized process parameters are output; and according to the process parameters, the preheating temperature of the die and the aluminum bar controlled by energy consumption and the opening time of a die heating furnace door and an aluminum bar heating furnace door are automatically and accurately calculated in the software module. Through combination of an industrial computer, an MES system and a machine learning technology and accurate calculation of equipment control parameters, efficient energy consumption control and production optimization are realized.

The invention discloses an induction culture medium for preparing human umbilical cord mesenchymal stem cell exosomes and application of the induction culture medium, and relates to the technical field of exosome culture. The additive is prepared from the following components: 0.8 to 1.5 percent of ITS, 0.03 to 0.05 percent of a luteolin extract, 0.04 to 0.06 percent of a herba taraxaci extract, 0.02 to 0.04 percent of a radix ginseng extract, 0.03 to 0.05 percent of resveratrol, 0.01 to 0.03 percent of vitamin C, 0.03 to 0.05 percent of a pimpinella thellungiana extract, 0.01 to 0.03 percent of a rhizoma dioscoreae extract and 0.01 to 0.02 percent of sodium citrate; the induction culture medium provided by the invention not only can avoid introduction of exogenous substances and reduce the pollution risk, but also can promote proliferation of stem cells and effectively induce synthesis and exosome secretion of a large number of human umbilical cord mesenchymal stem cells.

The invention discloses gallium ion imprinted amidoxime-based macroporous resin as well as a preparation method and application thereof, and belongs to the technical field of functional polymer materials and separation. The method comprises the following steps: pre-assembling a gallium trichloride template and monomers such as acrylonitrile, generating monodisperse liquid drops by utilizing a microfluidic technology, polymerizing by combining ultraviolet light, eluting the template by hydrochloric acid, and performing amidoximation modification by a hydroxylamine hydrochloride alkaline solution, thereby obtaining the resin. The resin is a monodisperse spherical microsphere, has a macroporous structure, has high selective recognition capability and high adsorption capacity on gallium ions, is fast in adsorption kinetics and good in regeneration performance, and is suitable for selectively separating or enriching gallium ions from a complex solution system.

This invention relates to an apparatus and method for the efficient capture of iodine-containing exhaust gas, comprising a tower system, a gas supply system, an absorbent system, an exhaust gas detection system, and a control system. Iodine-containing exhaust gas enters from the bottom of the tower system via the gas supply system and flows upward within the tower. The absorbent system enters from the top of the tower system via a nozzle and flows downward. The two gases come into countercurrent contact within the tower. Sodium hydroxide in the absorbent reacts with iodine in the exhaust gas to form iodide, thus converting iodine from the gas phase to the liquid phase, achieving iodine absorption and capture. After absorption and capture, the exhaust gas passes through a demisting section to capture entrained droplets before being discharged from the top of the tower system. The exhaust gas detection system measures the concentration of iodine in the exhaust gas. This method enables efficient gas-liquid contact and mass transfer, and achieves constant-temperature circulation and composition control of the alkaline solution. Through optimized tower structure and control system, it achieves stable and efficient capture of iodine from iodine-containing exhaust gas, possessing good potential for scientific research verification and engineering scale-up.

The invention provides a method for optimizing a shiny-leaved yellowhorn tea extraction process. Comprising the following steps: adopting a single factor test in combination with a response surface analysis method, selecting methanol concentration, liquid-material ratio and extraction time as investigation factors, taking total flavone and tea polyphenol content and extract yield as comprehensive indexes, and carrying out a verification test to finally obtain optimal process parameters; the optimal process parameters obtained by the method are as follows: the methanol concentration is 60%, the liquid-material ratio is 40: 1mL / g, and the extraction time is 35min. A verification test is repeated for three times according to the improved optimal process condition, the actual comprehensive score of the obtained shiny-leaved yellowhorn tea extraction process is 0.7033 and is close to a theoretical value 0.7130, the relative error is only 1.36%, and it is indicated that the method for extracting the process parameters through the model with the optimized response surface is quite accurate and reliable.

The present invention relates to a method for screening the cooling speed of an amorphous alloy strip, and belongs to the technical field of amorphous alloy preparation. The screening method of the present invention comprises the following steps: 1) using a single-roll melt rapid quenching method to spray a molten master alloy through a nozzle onto a rotating cooling roller to cool and solidify to form an alloy strip; during the spraying of the molten master alloy, the surface linear speed of the rotating cooling roller is adjusted from v 1 Decelerate to v 2 Or by v 2 Speed ​​up to v 1 Continuously change the thickness of the alloy strip, the line speed v 1 The alloy formed by cooling and solidification is a completely amorphous structure, and the linear speed v 2 The alloy formed by cooling and solidification is a crystalline structure; 2) the thickness value of the position point in the amorphous region of the alloy strip formed during the speed change or the position point on the boundary between the crystallized region and the amorphous region is substituted into the relationship between the thickness of the amorphous alloy strip and the surface linear speed of the cooling roller to obtain the cooling speed. This screening method can complete the high-throughput screening of cooling speed through the one-time preparation of the alloy strip.

The invention provides a hot rolling method for obtaining non-bending-torsion deformation of complex-section profile steel, and relates to the technical field of optimization of profile steel rolling process parameters. The hot rolling method for obtaining the complex-section profile steel without bending-twisting deformation comprises the steps that a profile steel rolling whole-process finite element model is established; selecting a plurality of test factors, pre-selecting a plurality of level values for each factor, and designing a virtual orthogonal test; finite element calculation of each virtual orthogonal test is completed, the unit torsion angle and the bending degree per meter of each virtual test finished product are obtained, the two indexes are comprehensively scored, and the scoring result serves as a total index; normalizing each factor in a range of 0-1, and establishing a mathematical regression model between the orthogonal test total index y and each factor x; and with the maximum comprehensive score y of the torsion angle per unit length and the curvature per meter as a target and the upper and lower limits of the preselected level value of each factor x as constraint conditions, obtaining an optimal rolling process parameter combination for realizing the straightness of a finished product. The method is simple, convenient, safe, reliable, low in cost and high in production efficiency.

A preparation method of a water-based inorganic coating with a fireproof function belongs to the technical field of material science, the prepared water-based inorganic coating has an excellent fireproof function through an accurate formula and process, flame propagation can be effectively delayed, the self-extinguishing time is prolonged, and more reliable guarantee is provided for life and property safety. The solid content, fineness, viscosity and other physical properties of the coating can be accurately controlled, so that the coating can better adapt to different application scenes and construction requirements, the coating effect and adhesive force of the coating are improved, the coating has higher initial decomposition temperature, maximum weight loss rate temperature and glass transition temperature due to the synergistic effect of the formula and the process, and the coating can be applied to the construction industry. The coating can be kept stable in a high-temperature environment, the service life of the coating is prolonged, detailed formulas and algorithms of the stirring speed, the stirring time, the grinding time and the like are introduced, technological parameters of the whole preparation process are more accurate and controllable, and personal errors are reduced.

This application relates to the field of suspension bridge cable strand processing technology, specifically disclosing a method for anchoring ultra-high strength cable strands. The method includes the following steps: collecting structural parameters of the anchor cup, wire separator, and wire bundle entities and constructing a digital twin model; collecting process parameters of the cable strand anchoring process and synchronously mapping them to the digital twin model; comparing the collected parameters with preset safety ranges, marking parameters that do not meet preset safety thresholds as process parameters to be adjusted; calculating the actual injection amount by collecting the alloy weight difference before and after anchoring; comparing the reverse displacement curve and injection amount of each anchor with historical qualified data intervals; if the range is exceeded, marking the anchor as a defective anchor and triggering an alarm; retrieving parameters of the defective anchor and analyzing them to obtain an optimized safety threshold range for the process parameters. The purpose of this patent is to solve the problem of lacking effective monitoring and control methods during the cable strand anchoring process, making real-time process monitoring and adjustment impossible.