19results about How to "Expand production scale" patented technology

The invention discloses a device for disease monitoring of swinery and a computer readable storage medium. The apparatus comprises: a processor; the memory is used for storing a program instruction for performing disease monitoring on the swinery, and when the program instruction is executed by the processor, the device realizes the following operations: acquiring basic information of a target swinery and a target image containing the target swinery; inputting the target image into a preset model for attitude detection operation, so as to output the attitude of each pig as an attitude detection result of the target pig herd; based on the posture detection result, determining a first proportion of the pigs whose postures are the target abnormal postures in the target swinery, and based on the first proportion, determining a disease state of the target swinery; and determining a treatment scheme of the target swinery based on the day age, the weight and the illness state. By means of the scheme, the diseases causing the abnormal postures of the swinery can be recognized in time, a reasonable treatment scheme is given, and therefore the health risk of the swinery is reduced.

The present invention provides a method for producing sodium tetrachloroaluminate, and relates to the technical field of chemical synthesis, in order to solve the problem that the newly introduced nitrogen has not been subjected to temperature treatment, and as the nitrogen is introduced and discharged, the heat in the reaction system is lost as the nitrogen flows. The method for producing sodium tetrachloroaluminate comprises: adding raw materials into a reaction tank; when a shutoff air inlet pipeline connected to the reaction tank is controlled to be in a conducting state, and a shutoff exhaust pipeline connected to the reaction tank is in a closed state, an inert gas is introduced into the reaction tank; when the pressure in the reaction tank reaches a preset value, the shutoff air inlet pipeline connected to the reaction tank is controlled to be in a closed state; heating the raw materials in the reaction tank to obtain a semi-finished product; transferring the semi-finished product into a settling tank; adding aluminum foil into the settling tank containing the semi-finished product, introducing an inert gas and keeping it still to obtain sodium tetrachloroaluminate; transferring the sodium tetrachloroaluminate into a storage tank into which the inert gas is introduced.

The invention belongs to the technical field of organic synthesis, and particularly relates to a catalyst-free continuous production method of chlorotert-butane, which comprises the following steps: adding diluted hydrochloric acid as a starting solution into the tower kettle of a reactive distillation tower, and heating the tower kettle to boil until reflux exists at the tower top; the method comprises the following steps: adding tert-butyl alcohol and concentrated hydrochloric acid into a mixing preheater for preheating, then continuously feeding from a feed port of a reactive distillation tower until the tower top temperature is 45-48 DEG C, the side discharge port temperature is 50-52 DEG C and the tower kettle temperature is 96-105 DEG C, and carrying out reflux according to a reflux ratio of (1.5-3): 1; and continuously extracting crude chlorinated tert-butane from a side discharge port of the tower, cooling, neutralizing, drying and filtering to obtain the chlorinated tert-butane. According to the invention, through the integrated design of the mixing preheater and the reactive distillation column, especially by utilizing the reactive distillation technology to continuously remove the product, the chemical equilibrium limitation of the traditional intermittent process is successfully broken, the raw material conversion rate is obviously improved, and meanwhile, the green production targets of flow simplification, energy consumption reduction and three-waste emission reduction are realized.

A novel production scale-up adsorption separation device relates to the technical field of bioengineering product adsorption separation, and the technical scheme is: a filter is provided, the filter comprises an outer column pipe, an inner column pipe is arranged in the outer column pipe, and a hole is arranged in the inner column pipe; the filter is one or more than one; when the filter is one, a connecting piece is arranged in the middle of the outer column pipe, and N baffles are arranged on the connecting piece; the beneficial effects of the technical scheme are that the addition of the baffles enables the inner column pipe to form a relatively independent processing space, and liquid is circulated and communicated outside, so that the stability and uniformity of the fluid in the column pipe during the processing process are ensured, the production scale is expanded, the advantages of the original single equipment are guaranteed, the production land is saved, a plurality of single equipment is connected in series, each step is coordinated, the production efficiency is greatly improved, the utilization efficiency of the equilibrium liquid, the eluent and the like is improved, the cost is saved, and long-time automatic operation is realized.

The invention relates to the technical field of cell biology, and particularly discloses a culture method and application of theileria annulata fission transformed cells. The culture method disclosed by the invention comprises the following steps: after cells are recovered, performing subculture multiplication culture in a first culture medium containing 10% of bovine serum; sequentially inoculating into a second culture medium containing 8% of bovine serum, 5% of bovine serum and 3% of bovine serum, and carrying out subculture; the first culture medium comprises a GB culture medium and an RPMI1640 culture medium in a volume ratio of 3: 1; the second culture medium comprises a GB culture medium and an RPMI1640 culture medium in a volume ratio of 1: 1. The GB culture medium is a solution of A1627703 culture medium dry powder of Gibco company, and the concentration of the GB culture medium is 17.5-18g / L; the RPMI1640 culture medium is a solution of RPMI1640 culture medium dry powder, and the concentration of the RPMI1640 culture medium dry powder is 24.5-25.5 g / L. The culture method provided by the invention can effectively reduce the usage amount of bovine serum in the culture solution.

The invention discloses a piperidine compound crystal form and a preparation method thereof. The invention provides a crystal form A of compounds 1-13, which uses Cu-K alpha radiation, and an X-ray powder diffraction pattern represented by a 2 theta angle has diffraction peaks at 6.42 degrees + / -0.20 degrees, 11.80 degrees + / -0.20 degrees, 17.46 degrees + / -0.20 degrees, 18.18 degrees + / -0.20 degrees, 18.58 degrees + / -0.20 degrees and 19.34 degrees + / -0.20 degrees. According to the preparation method of the compound 1-13, the compound 1-13 with the single stereo configuration is obtained, and then the compound 1 with the single stereo configuration is obtained. The chemical purity and optical purity of the compound 1 are improved, the production cost is greatly reduced, and the production scale is greatly enlarged, so that the method is more suitable for industrial production. # imgabs0 #

The present invention relates to a method for forming a TiZrNb series high entropy alloy conical part, and belongs to the technical field of alloys. A two-step forming method of stamping preforming and spinning is adopted, wherein the TiZrNb series high entropy alloy blank is first heated, stamped and preformed, then heated and kept warm at a suitable heating current and heating time, and then two passes of spinning are performed at a suitable mandrel speed, feed ratio, and spinning wheel diameter, and finally heat-treated to obtain a conical part product. The conical part obtained by optimizing the process conditions has uniform wall thickness, high surface accuracy, and improved strength and plasticity.

The invention provides a simple preparation method of a BiVO4 visible-light-driven photocatalyst, which comprises the following steps: dissolving bismuth nitrate [Bi (NO3) 3.5 H2O] with concentrated nitric acid, and adding deionized water to prepare a Bi (NO3) 3 solution with the concentration of 0.05 mol.L <-1 >; the method comprises the following steps: dissolving ammonium metavanadate (NH4VO3) by using hot deionized water to prepare a NH4VO3 solution with the concentration of 0.05 mol / L <-1 >; the preparation method comprises the following steps: mixing a Bi (NO3) 3 solution and an NH4VO3 solution according to a molar ratio of 1: 1, adjusting the pH value to 4, carrying out a hot stirring reaction in a water bath at 90 DEG C, and separating out generated precipitates; and drying the separated precipitate, transferring the dried precipitate to a crucible, and firing in a muffle furnace at 450 DEG C to obtain the BiVO4 visible-light-driven photocatalyst. The method has the advantages that the requirement on a synthesis device is low, and the equipment cost can be effectively reduced; the preparation method has the advantages of no need of long-time reaction at high temperature, high safety in the preparation process, low energy consumption, effective reduction of the preparation cost of BiVO4, and suitableness for large-scale production.

The invention discloses a method for preparing a metal / metal sulfide composite catalyst through a ball milling method and application. The method comprises the following steps: providing mixed powder containing metal powder and sulfur powder, and carrying out mechanochemical reaction on the metal powder and the sulfur powder in the mixed powder in an inert atmosphere in a ball milling manner to form a metal compound containing a metal / metal sulfide composite structure, so as to obtain the metal / metal sulfide composite catalyst. The mechanochemistry is utilized to enable sulfur powder and metal to react with each other to form metal sulfide on the surface of the metal, so that the combination efficiency of the metal main catalyst and the non-metal cocatalyst is improved; meanwhile, the particle size of the catalyst is reduced in the ball milling process, and the catalytic efficiency is further improved.

The utility model relates to an annular polyurethane polishing disc production line which comprises a machine frame, a rotary disc driving part is installed in the center of the machine frame, a rotary disc is connected to the machine frame in a sliding mode, and a plurality of mold units are annularly arranged on the top face of the rotary disc. The turntable is sequentially divided into a blanking cleaning station, an oil brushing station, a base placing station, an ester injecting station, a magic tape placing station, a heating station and a cooling station along the annular direction of the turntable; an ester injecting device is arranged in the ester injecting station; the mold unit comprises a bottom plate, a bottom mold and a cover mold, the bottom plate is fixed to the top face of the rotary disc, the bottom mold is fixed to the bottom plate, the cover mold is rotationally connected to the bottom mold, and the cover mold can be rotationally opened or rotationally closed under the action of external force; compared with the prior art, the automatic production device has the advantages that the rotating disc and the 18 mold units arranged on the rotating disc are utilized to form an automatic circulation station, and the automatic production degree of the polishing disc can be greatly improved only by arranging equipment and personnel required by working procedures at the corresponding positions of the station.

The present invention discloses a method for resource utilization of lead-zinc ore waste rock, comprising the following steps: S1, crushing the lead-zinc ore waste rock to obtain low-quality dolomite; or roasting the lead-zinc ore waste rock, crushing it after roasting to obtain low-quality light-burned dolomite; S2, mixing iron ore powder, return ore, flux and coke powder to obtain sintering raw materials; wherein: the flux contains low-quality dolomite or low-quality light-burned dolomite; S3, mixing the sintering raw materials to obtain pre-mixed materials; S4, granulating the mixed materials to obtain granulated materials; S5, distributing the granulated materials in a sintering cup, igniting, sintering, and then cooling, crushing and screening to obtain a finished sintered ore. The present invention uses lead-zinc ore waste rock to prepare dolomite and light-burned dolomite products for sintering, and only mechanical crushing is required to prepare low-quality dolomite, or low-quality light-burned dolomite can be fired using a conventional roasting process, and the process flow is simple, the production cost is low, and it has high technical and economic feasibility.

The utility model discloses a pitting and pulping device for processing prune juice, which relates to the field of prune juice processing, and comprises a rack, a pulping barrel is mounted on the inner wall of the rack, a motor is fixedly connected to the lower end of the pulping barrel, a pulping knife rest is mounted at one end of the motor, a clamping bolt is mounted on the inner wall of the pulping barrel, and the clamping bolt is fixedly connected to the lower end of the pulping barrel. And a first spring is welded to one side of the clamping bolt, a guide plate is welded to one side of the rack, and a kernel frame is welded to one side of the rack. According to the utility model, the mounting rack is arranged to move the movable ring, and when the device is used, the mounting rack and the movable ring can be arranged to quickly mount and adjust the processing quantity of the device according to the actual order demand and capacity planning. When the market demand is exuberant and the yield needs to be increased, an operator can quickly install additional processing components, so that the production scale of the device is quickly expanded, the marketing opportunity of the market is grasped in time, and the practicability of the device is improved.

The invention discloses a continuous synthesis method of ethyl 2, 3-dicyano-2-(pyridine-3-yl diazenyl) propionate, and belongs to the technical field of preparation of medical intermediates.The continuous synthesis method comprises the following steps that 3-aminopyridine, strong acid and a diazotization reagent are precooled in a pipeline and then pumped into a first mixer to be mixed; finally, conveying into a first-stage connection reactor for reaction to obtain a 3-aminopyridine diazonium salt intermediate; pre-cooling an ethanol solution of ethyl 2, 3-dicyanopropionate in a pipeline, pumping the pre-cooled ethanol solution and the 3-aminopyridine diazonium salt intermediate into a second mixer for mixing, and then conveying the mixture into a second-stage connection reactor for reaction to obtain a reaction product mixture; and separating and purifying the reaction product mixture to obtain a target product. The problem that the process cannot be stably amplified due to intermediate decomposition can be solved, and the production scale is increased.

The invention relates to the field of chemical production technology, and specifically to a method for catalytically synthesizing vinyltributylacetonatomylic silane using a membrane reactor; the invention provides a method for catalytically synthesizing vinyltributylacetonatomylic silane using a membrane reactor, wherein the hydroxyl groups of ethylene glycol-based styrene polymers react with allyl bromide under the catalytic action of tetrabutylammonium bromide to obtain an alkaline resin catalyst, and then vinyltrichlorosilane reacts with butanone oxime in an external membrane reactor, and the resin catalyst of the external membrane reactor catalyzes the reaction, and the catalyst membrane is retained in the reactor, thereby realizing a continuous reaction process.

The invention provides a process route for industrially producing a plant sulfonated peptide growth factor, which comprises the following steps: synthesizing a molecular block by using a liquid phase method, constructing the molecular block into polypeptide by using a solid phase method to obtain polypeptide containing Tyr (SO2F), converting the Tyr (SO2F) of the polypeptide into Tyr (SO3H) under an alkaline condition, and purifying the product to obtain tyrosine sulfonated polypeptide. According to the process route, a common structure of a series of sulfonated peptide growth factors is comprehensively considered, intermediate polypeptide is constructed by using molecular building blocks and then is converted into sulfonated polypeptide, the advantages of a solid phase and a liquid phase are comprehensively considered, meanwhile, exposure of sulfonated growth factor products to high-concentration TFA is avoided, the whole reaction condition is mild, repeatability is high, raw materials are cheap and easy to obtain, and the method is suitable for industrial production. The development of large-scale industrial production is facilitated.

The invention relates to a porcine delta coronavirus capable of efficiently reproducing on suspension cells and application of the porcine delta coronavirus, and belongs to the technical field of veterinary biology. The porcine delta coronavirus strain is named as a porcine delta coronavirus strain DC19, and the porcine delta coronavirus strain can be stably proliferated on suspension cells to produce virus liquid with high virus content and high immunogenicity. The porcine delta coronavirus can be cultured in a full-suspension manner under the serum-free condition, so that the production scale of virus liquid can be expanded conveniently, and the technical requirements of GMP production can be met; the vaccine prepared from the produced virus liquid has a good immune effect and has a better market prospect.

The invention relates to the technical field of screens, in particular to a modular combined screen. The two ends of a supporting piece are fixed to the two side walls of an inner cavity of a vibrating screen box; the clamping piece is fixed on the top surface of the supporting piece; the combined type outer frame comprises two U-shaped end frames and a plurality of edge beams, the edge beams are in butt joint with the two ends of the U-shaped end frames in an inserted mode, every two adjacent edge beams are in butt joint in an inserted mode, the bottom of the combined type outer frame is detachably connected with the clamping pieces in a clamped mode, and a groove structure is arranged on the inner circumferential wall of the top of the combined type outer frame; each combined frame comprises a first frame body and a second frame body which are arranged in the longitudinal direction and connected with each other in a clamped mode, the combined frames are clamped in the groove structures of the inner circumferential wall of the combined outer frame, and the top faces of the first frame bodies and the top faces of the second frame bodies are detachably connected with a plurality of mushroom-shaped connecting pieces in a sleeved mode respectively. A T-shaped sliding groove which is in sliding clamping fit with the top of the mushroom-shaped connecting piece in the horizontal direction is formed in the bottom of the screen piece; the problems that a screen is not convenient to efficiently install and the use cost is high are well solved.

This application relates to the field of meat processing technology, and provides a method, apparatus, electronic device, and medium for finely segmenting and grading pork belly. The method includes the following steps: shaping the sample to be tested; acquiring image frames of the shaped sample; determining the region of interest (ROI) based on the image frames; establishing a feature binary template for the sample based on the muscle layer and fat layer binary templates within the ROI; constructing and calculating the sample layer vector; and determining segmentation and grading parameters based on the element values ​​in the sample layer vector. The method, apparatus, and electronic device provided by this application can accelerate production efficiency, improve automation, and expand production scale, making the segmentation, grading, and sorting processes adaptive, thereby improving the accuracy of segmenting and grading high-quality parts of pork belly and addressing the current shortcomings in fine and intelligent segmentation and grading of fresh meat products.

The invention discloses a method for continuously preparing a star-shaped block copolymer based on an organocatalytic atom transfer radical polymerization method, which comprises the following steps: mixing and dissolving MMA (methyl methacrylate), an alkyl bromide initiator and an organic catalyst, and carrying out O-ATRP (atom transfer radical polymerization) reaction under the irradiation of blue light to obtain a star-shaped homopolymer; mixing and dissolving PEGMA300 and an organic catalyst, mixing with the star-shaped homopolymer, and carrying out O-ATRP reaction under the irradiation of blue light to obtain the amphiphilic star-shaped block copolymer. The method is based on an O-ATRP reaction, the O-ATRP reaction is introduced into a continuous flow microtube reactor, and efficient and controllable preparation of star-shaped block copolymers with different polymerization degrees and block ratios is achieved by regulating and controlling feeding of reactants, illumination conditions, reactor parameters and the sample injection rate of reaction liquid; the operation process is effectively simplified, the efficiency is improved, and the production scale is favorably expanded; meanwhile, the conditions are mild, no transition metal is used, the components are simple, and the polymerization reaction speed is high.