68results about How to "Promote aggregation" patented technology

This invention discloses a method for preparing high-elongation bars for cold forging, belonging to the field of aluminum alloy preparation technology. Through optimization of composition and process, the prepared bars possess high purity, uniform and fine equiaxed grain structure, and excellent plasticity, with significantly improved elongation. This meets the stringent requirements of cold forging for high material plasticity, resulting in a bright, crack-free surface and uniform grains after cold forging, overcoming problems such as oxide scale, coarse grains, and poor dimensional accuracy caused by hot forging. Furthermore, the introduction of modified talc and sodium nitrate as refining agents further promotes uniform microstructure, achieving high elongation and excellent cold forging performance.

The invention provides a modified epoxy resin water permeable brick and a preparation method thereof. The modified epoxy resin water permeable brick is prepared from the following raw materials in parts by weight: 95 to 105 parts of aggregate, 8 to 15 parts of modified epoxy resin, 1 to 3 parts of curing agent, 5 to 8 parts of composite filler, 0.1 to 0.3 part of exciting agent, 2 to 4 parts of self-repairing component and 1 to 3 parts of diluent. According to the water permeable brick, through the synergistic effect of the organic silicon modified epoxy resin and the special curing agent, the anti-aging performance of the material is improved. The introduced Si-O-Si bond can effectively resist the attack of ultraviolet photons; long-chain alkyl in the curing agent forms a compact physical barrier layer, so that oxygen and moisture permeation is greatly slowed down, the water permeable brick can effectively resist pulverization, yellowing and embrittlement in long-term outdoor use, the compressive strength and the water permeability coefficient of the water permeable brick can still keep an extremely high retention rate after long-term use, the service life is remarkably prolonged, and the water permeable brick is suitable for popularization and application. The industrial pain point that a traditional resin-based water permeable brick is easy to age is solved.

This invention discloses an enzyme- and pH-responsive nucleic acid loading and delivery material and its preparation method. The material can be used for efficient loading and delivery of nucleic acid molecules. The preparation method uses amphiphilic zwitterionic monomers to improve the reverse emulsion polymerization system, enhancing polymerization at the two-phase interface and avoiding the extrusion effect of polymerization in the aqueous core on nucleic acid molecules, thereby improving the loading efficiency of nucleic acid molecules. Further preparation of cross-linking agents MP-CL and CB-CL, which can cleave in response to matrix metalloproteinase II or cathepsin B, endows the nanogel with the ability to respond to charge reversal in the tumor matrix and to release nucleic acid molecules from tumor cells. The acid-sensitive blocks on the amphiphilic monomers give the nanogel lysosomal escape capability. The delivery material can efficiently deliver nucleic acid molecules into cells and exhibits excellent stability and biosafety.

The invention provides a battery system state evaluation and early warning method based on multi-source information fusion, and the method comprises the steps: synchronously collecting the multi-source state data of a battery system, which at least comprises a real-time synchronization parameter group for cooperatively evaluating the mechanical integrity and environment interaction risk, the real-time synchronization parameter group comprises vibration acceleration data, organic volatile matter concentration data, humidity data and corrosion rate data; processing the data of the real-time synchronization parameter group, extracting combined feature parameters having an association relationship with each other to form a feature vector, the combined feature parameters at least comprising: a structure risk feature, a sealing risk feature, and a connection risk feature; and inputting the feature vectors into a preset multi-parameter fusion analysis model to analyze a linkage mode among the combined feature parameters, and synchronously generating and outputting a safety risk report based on an analysis result of the linkage mode, the safety risk report at least comprising a mechanical integrity risk index and an environment interaction risk index.

The invention provides a rapid defoaming and degassing device for foamed crude oil, which can realize efficient defoaming and degassing of the crude oil. Comprising a horizontal tank body serving as a main body space for oil-gas separation and oil-water separation, the horizontal tank body is provided with a liquid inlet, a liquid outlet, a gas outlet and a drain outlet, the liquid inlet and the liquid outlet are formed in the head side and the tail side of the tank body respectively, and the liquid outlet comprises an oil outlet communicated with the upper portion of the side wall of the tail side of the tank body and a water outlet communicated with the lower portion of the side wall of the tank body; the rotational flow pipe is communicated with the liquid inlet in the head side of the tank body, an oil inlet and a first exhaust pipe are arranged on the rotational flow pipe, and the rotational flow pipe is used for introducing crude oil into the tank body through the rotational flow pipe and pre-separating oil and gas in the introduction process; the multiple stages of degassing mechanisms are arranged in the tank body, comprise a first-stage degassing mechanism, a second-stage degassing mechanism and a third-stage degassing mechanism which are sequentially arranged from the head side to the tail side of the tank body, and are used for degassing crude oil; the heating mechanism is arranged at the lower part in the tank body and is used for heating crude oil; and the exhaust mechanism is communicated with the gas outlet at the top of the tank body and is used for exhausting crude oil removed gas.

This invention provides a hybrid evaporator for heat pumps, relating to the field of evaporator technology. It includes a shell and tube, with transition cavities at both ends. A drain pipe and a water inlet pipe are respectively provided at the outer ends of the transition cavities on both sides. A heat exchange tube assembly is arranged between the two transition cavities, located inside the lower side of the shell and tube. A refrigerant inlet pipe is provided at one end of the lower side of the shell and tube. This invention utilizes the gaseous refrigerant exiting from the gap between the middle partition and the gas guide plate. In the oil separation zone, the flow rate of the gaseous refrigerant slows drastically, becoming insufficient to carry lubricating oil. The lubricating oil accumulates as droplets on the perforated plate and flows into the lower oil return zone through the perforations. The gaseous refrigerant flows out of the shell and tube from the refrigerant outlet pipe on one side of the oil separation zone. This structure allows for the guidance of the heat-exchanged gas and further separation of residual lubricating oil within the gas during the guidance process, thereby improving the overall heat exchange effect.

The application discloses a kind of membrane separation concentrated water processing equipment, and the application relates to sewage treatment technical field.The membrane separation concentrated water processing equipment, including processing tank, agitating mechanism, impurity removal mechanism, agitating mechanism includes shaft and servo motor, the outer cylindrical surface of shaft and the top position of processing tank inner cavity close installation have defoaming assembly, the outer cylindrical surface of shaft and the bottom position of processing tank inner cavity close fixedly connected with stirring plate, impurity removal mechanism includes conical screen and collection component, conical screen surface middle is fixedly connected with lower conical extension ring, the surface of conical screen and the top position close fixedly connected with upper conical extension ring, the surface of lower conical extension ring and the surface of upper conical extension ring are all fixedly installed with guide vane, the middle of upper conical extension ring surface is fixedly installed with stirring tooth, reaches the purpose of impurity removal, can remove particulate impurities, and pharmaceutical and concentrated water are uniformly mixed, effectively treat sewage, safe and reliable.

The application discloses a rotary floating entraining metallurgical nozzle, which comprises a reaction gas channel and a material channel which are sleeved with each other, an entraining channel is arranged concentrically in the reaction gas channel, a rotating shaft is arranged in the center of the entraining channel, a blade assembly is connected to the bottom of the rotating shaft, a driving device is arranged on the top of the rotating shaft, exhaust holes are arranged on the wall of the entraining channel, and the upper ends of the reaction gas channel, the material channel and the entraining channel are not communicated with each other. The application has the advantages of simple structure, better mixing reaction effect of gas and material particles, low smoke dust rate, and more concentrated reaction in the center, thereby effectively reducing the erosion on the wall of a reaction tower.

The application discloses a preparation method and application of a hollow manganese dioxide nanocarrier coated with a human umbilical cord mesenchymal stem cell membrane and a transmembrane peptide TAT, and is characterized in that: hollow mesoporous manganese dioxide is synthesized through a selective etching technology, and a layer of human umbilical cord mesenchymal stem cell membrane is coated outside the manganese dioxide through a repeated extrusion method. Since the cell membrane has special tumor homing characteristics, and lacks major histocompatibility complex-II and only expresses major histocompatibility complex-I in a trace amount, the key scientific problems and difficulties such as low biological safety, strong immunogenicity and easy elimination by the body of artificially synthesized nanomaterials can be effectively solved. Finally, the cell membrane surface is modified with the transmembrane peptide TAT through a phospholipid insertion method, precise subcellular localization-nucleus targeting is realized, and tumor cells can be more effectively killed.

This invention provides a method for producing single-cell protein using a mixed bacterial culture, comprising the following steps: performing primary seed culture on methanogenic bacteria, *Tricholoma materata*, and *Glucosinolate methyl-eating bacteria* to obtain primary seed solutions; mixing the primary seed culture solutions evenly to obtain a mixed bacterial solution; inoculating the obtained mixed bacterial solution into a secondary seed culture medium for cultivation to obtain a secondary seed solution; inoculating the obtained secondary seed solution into a fermentation medium for scale-up cultivation to obtain a fermentation broth; separating the solid and liquid components of the obtained fermentation broth, harvesting the bacterial cells, and obtaining single-cell protein. This method for producing single-cell protein using a mixed bacterial culture improves the utilization rate of the carbon source methane and the yield of single-cell protein.

The utility model discloses a kind of polymeric ferric chloride finished product automatic packaging machines, it is related to polymeric ferric chloride processing equipment technical field, including support plate, the top of support plate is fixedly provided with tank, the below of tank is equipped with barrel, fixedly provided with conveying pipe between tank and barrel, the inside of tank is fixedly provided with crosspiece, the middle part of crosspiece is fixedly provided with auger rod, and the bottom end of auger rod extends to the inside of barrel and penetrates conveying pipe, the both sides of crosspiece bottom end are fixedly provided with several evenly spaced dispersion rods, the side of dispersion rod is fixedly provided with several evenly spaced support rods, the bottom end of barrel is fixedly provided with discharge pipe;The beneficial effects of the utility model are that: material can be dispersed, scattered, avoid material caking and block conveying pipe, improve the uniformity of subsequent stirring, ensure the normal quantitative discharge of subsequent screw conveying rod, facilitate the packaging of polymeric ferric chloride finished product at subsequent loading platform.

The invention relates to the technical field of pneumatic conveying of powdery materials, and discloses a long-distance conveyor suitable for powdery raw materials, which comprises a conveying pipeline, the conveying pipeline is sequentially communicated with an air blower, at least one feeding bin and a collecting bin along the conveying direction, and each right-angle corner of the conveying pipeline is communicated with a protection mechanism. The protection mechanism comprises a right-angle bent pipe, a ball cavity cylinder and a backflow pipe. In the initial stage of conveying, the backflow pipe introduces part of airflow and trace materials of the discharging section into the ball cavity cylinder, the materials are promoted to gather towards the middle of the ball cavity cylinder, and a bridging structure is rapidly established at the positions of the metal balls in an auxiliary mode; along with continuous conveying, the powdery raw materials are gradually stacked at the bridging structure and completely fill the ball cavity cylinder, and a compact and stable material cushion layer is formed. The process does not depend on first abrasion of the bent pipe, but a protective layer can be actively formed at the initial stage of normal conveying, and follow-up high-speed powder is thoroughly isolated from the inner wall of the bent pipe.

The utility model provides a multivalent salt removal reactor of a landfill leachate material separation desalination system, which comprises a reaction tank and a mixing and stirring pool communicated with the reaction tank, a clear water area, a precipitation reaction area, a reflection collision area and a bottom mud bucket are arranged in the reaction tank, a precipitation buffer area is arranged on the mud bucket, and a mixing assembly and a conical reflection plate are arranged in the reflection collision area. The mud bucket is communicated with the mixing and stirring tank through a salty mud discharging pipe; the mixing assembly comprises a shell, a first mixing cylinder and a mixer; according to the utility model, through the first mixing cylinder diversion groove and the second mixing cylinder diversion hole of the mixing assembly, multivalent salt strong brine and a crystallizing agent are fully mixed twice and are sprayed out from the liquid spraying hole to collide with the conical reflecting plate, so that the uniform mixing is ensured, and the reaction efficiency is improved; full mixing and collision of the multivalent salt strong brine and the crystallizing agent are achieved through the mixing assembly and the conical reflecting plate, and crystallization and precipitation are accelerated in combination with the ultrasonic vibration rod.

The application discloses a method for alleviating Non-IID influence based on explainable federated learning. The application mainly introduces a validation set explainable mechanism to depict the explainable results of the validation set samples in the center server based on the influence of local client update on the learning ability of each category of the aggregated model, and evaluates the explainable results of each category by using a structural similarity index (SSIM), so as to deduce the data imbalance clients. Then, the parameters of the data imbalance clients are adjusted, the gradient distance between the model of the data imbalance client and the parameter of the global aggregated model in the last round is minimized, and the parameters of the model of the data imbalance client are corrected through the convergence of the gradient distance, so that the negative influence caused by the data imbalance is weakened.

The utility model relates to a magnetizing structure based on a Halbach array and a motor, the magnetizing structure comprises a plurality of magnetic steel groups, each magnetic steel group comprises a main magnetic steel and at least two auxiliary magnetic steels arranged at two sides of the main magnetic steel, the length of the main magnetic steel is greater than that of the auxiliary magnetic steels in the magnetizing direction of the main magnetic steel, and the length of the auxiliary magnetic steels is greater than that of the main magnetic steel. The magnetizing directions of the main magnetic steel and the auxiliary magnetic steel are both in the radial direction and are arranged in different directions. Thus, the magnetizing structure comprises the plurality of magnetic steel groups, each magnetic steel group comprises the main magnetic steel and the at least two auxiliary magnetic steel arranged on the two sides of the main magnetic steel, the length of the main magnetic steel is larger than that of the auxiliary magnetic steel, and the magnetizing directions of the main magnetic steel and the auxiliary magnetic steel are different, so that aggregation and divergence of a magnetic field can be facilitated, pulsation of the torque of the motor can be restrained, and the reliability of the motor is improved. The stability of the motor is improved.

This utility model relates to the field of aquaculture equipment, specifically a screening device for snakehead fry of different sizes. It includes two boxes, each with a placement cavity extending through the front wall and connected to the outside. A fish-collecting drawer is located within the placement cavity, with a water inlet pipe above it. One end of the water inlet pipe extends into the fish-collecting drawer, and the other end connects to an external water pump. An oxygenation tray is installed on the bottom of the fish-collecting drawer, connected to an oxygenation hose. An aerator is fixedly installed on the rear wall of the box, with the end of the oxygenation hose furthest from the oxygenation tray connected to the aerator. A screening screen is positioned above the placement cavity, with a reinforcing edge fixedly connected to its top. Compared to existing technologies, this patent, by incorporating a slidable and detachable screening screen and its limiting components, enables rapid replacement and securing of the screen, adapting to the screening needs of fry of different sizes and improving the versatility and ease of operation of the equipment.

This application provides a speech recognition method, device, and storage medium. The method includes: obtaining a first vector representation corresponding to a speech signal through a speech recognition encoder; obtaining a second vector representation corresponding to the speech signal through a speaker encoder; encoding the first n-1 characters output by the speech recognition decoder through a text encoder to obtain a third vector representation corresponding to the (n-1)th character; inputting the first, second, and third vector representations into the speaker decoder to obtain the speaker vector representation corresponding to the nth character; determining the speaker corresponding to the nth character based on the correlation coefficients between the speaker vector representation and the profile feature vectors of multiple speakers; and inputting the first vector representation, the first n-1 characters, and the weighted sum of the correlation coefficients and the profile feature vectors of multiple speakers into the speech recognition decoder to obtain the nth character, thereby improving the accuracy of the speaker recognition results corresponding to each character.

The utility model relates to a kind of metal component surface radial wire drawing processing device, belong to metal wire drawing processing technical field.The metal component surface radial wire drawing processing device, it include: rack, the rack surface is respectively equipped with wire drawing mechanism and rotating mechanism, the rotating mechanism includes fixedly connected with the motor of rack top, and the motor output shaft end is fixedly connected with fixed block;Scrap collecting mechanism, it is set on rack, and the inner cover top is equipped with through-hole, the wire drawing mechanism is equipped with lifting plate, the lifting plate is fixedly connected with liquid injection pipe, the liquid pump outlet and liquid injection pipe are communicated by hose between, above-mentioned radial wire drawing processing device, inner cover and outer cover form relatively closed space, cooperate liquid pump and liquid injection pipe to make cooling liquid circulation flow, both can spray cooling liquid to processing area, realize the effective cooling of component, can also collect scrap with cooling liquid to outer cover, avoid scrap splashing.

The present application relates to the field of wastewater treatment, especially to a kind of wastewater treatment equipment for ceramic tile production, including flocculation tank, sedimentation tank, outlet channel, mud suction pipe, diversion tank and storage tank etc.;The right part of flocculation tank is connected with sedimentation tank;Several outlet channels are installed in the right part of sedimentation tank;Extension is arranged on sedimentation tank;Diversion tank is installed on sedimentation tank;Storage tank is installed on sedimentation tank, and storage tank is communicated with diversion tank;Several mud suction pipes are installed in diversion tank and storage tank.The extension is additionally arranged in the right part of sedimentation tank, the travel of water flow is increased, so that the particle moving to the right can continue to move to the right through the traction area of outlet channel, and the particle is prevented from staying in the traction area of outlet channel and being dragged into it by surrounding water flow, so as to affect the treatment of ceramic tile wastewater.

This utility model discloses a real-time clock circuit and a Beidou receiver, relating to the field of electronic circuit technology. The disclosed real-time clock circuit includes an energy storage module and a timing module. The energy storage module includes at least one electrolytic capacitor, which has a porous anode substrate structure and a dielectric constant higher than a preset dielectric constant. The timing module is connected to both the electrolytic capacitor and a power supply. This utility model utilizes the electrolytic capacitor to store energy when connected to a power supply, receiving the output voltage from the power supply and outputting the stored energy voltage to the timing module when the power supply is disconnected. The porous anode substrate structure of the electrolytic capacitor, with a dielectric constant higher than a preset dielectric constant, enables the storage of more energy in a short time, ensuring longer time recording even after the Beidou receiver is powered off, thus providing a reliable time reference for the long-term operation of the Beidou receiver.

This application relates to the field of demulsifiers, and more specifically, to an oil sludge demulsifier, its preparation method, and its application. An oil sludge demulsifier comprises the following components in the following mass ratio: 20-35 parts of a surfactant complex, 7-12 parts of an alkyl sulfate sodium cosolvent, 0.6-1.8 parts of a stabilizer, and 48-55 parts of water; wherein the surfactant complex comprises hyperbranched polyamide amine and polyether amine modified magnetic nanoparticles. This oil sludge demulsifier improves upon the problems of existing demulsifiers, such as low dehydration capacity, slow dehydration speed, poor demulsification effect, and low oil content, thereby improving the demulsification performance and dehydration efficiency, and achieving effective separation of oil sludge.

A strain-sensing hydrogel with anti-interference properties, its preparation method and application, Ti3C2T x AAM monomers undergo a free radical aggregation reaction, concentrating on both sides of the solution to form a hydrogel isolation layer with anti-interference properties. The central part is a viscous solution. PVA-assisted cryo-casting induces the directional growth of ice crystals, and the aggregation and entanglement of PVA chains yields a strain-sensing hydrogel with anti-interference properties. In a photo-initiated free radical polymerization system, LAP acts as a photoinitiator and PEG as a crosslinking agent to induce a free radical aggregation reaction of AAM. Ti3C2T x The hydrogel, possessing light-absorbing properties, forms an anti-interference hydrogel isolation layer. The sensing layer of the hydrogel consists of physically cross-linked PVA chains. During the directional growth of ice crystals, electrostatic interactions between the PVA polymer chains form hydrogen bonds, resulting in a high-strength, high-toughness hydrogel sensing layer. The PVA and Ti3C2T... x Hydrogen bonds and crystalline domains are formed between AAm, enhancing the mechanical properties of the multilayer hydrogel.

The utility model discloses a wall plastering device for house building construction, and particularly relates to the technical field of house building construction, the wall plastering device comprises a supporting bottom plate, the top of the supporting bottom plate is provided with a charging barrel with a stirring function and a conveying pump, and one end of the supporting bottom plate is fixedly connected with a supporting plate; a collecting box used for collecting redundant ash is arranged on one side of the supporting plate. According to the plastering device, firstly, the material collecting scraping plate can be used for collecting part of redundant ash materials generated by plastering of the first scraping plate, the redundant ash materials are collected towards the middle of one side of the supporting vertical plate while plastering is achieved, and the generated redundant ash materials can automatically fall into the collecting box at the bottom to be collected in a centralized mode; when the ash materials in the collecting box need to be collected and discharged, a discharging hole is opened, a servo motor is started, the ash materials in the collecting box can be discharged through the discharging hole through a second scraping plate, the ash materials can be conveniently discharged and reused, and waste is avoided while the ground is prevented from being polluted.

The invention discloses a preparation method and application of inlaid highly isotropic coke, petroleum residual oil, petroleum asphalt, heavy oil or coal tar pitch are used as raw materials, a certain amount of graphene oxide or graphene is added, melt blending is carried out at a certain temperature, heat treatment is carried out at a certain atmosphere, pressure and temperature, and the inlaid highly isotropic coke is obtained. Isotropic semicoke rich in the superfine mosaic structure is prepared, and the superfine mosaic type highly isotropic coke is obtained after the obtained isotropic semicoke with the superfine mosaic structure is calcined. The isotropic degree of the prepared coke is greatly improved, and the isotropic degree and various performance indexes of the isotropic graphite material prepared by taking the prepared isotropic coke as the raw material are greatly improved.

The invention relates to the technical field of clean energy storage, in particular to a continuous pipe brine discharging and capacity expanding method and tool for an energy storage warehouse, and aims to solve the problems that an existing brine discharging and capacity expanding method wastes a large amount of warehouse capacity, is low in operation efficiency and has potential safety hazards of gas leakage. By means of the method and the tool, in the process of flushing the low sediment of the cavity, the sediment at the bottom of the cavity is flushed to form the brine discharging pit, brine can be conveniently gathered in the pit, and the purposes of deep brine discharging and storage capacity expanding are achieved. In the brine discharging process, brine is flowback to the ground, the brine discharging condition is monitored and judged through the ground, the continuous pipe is deepened continuously, continuous operation is achieved, and finally brine is discharged to the maximum extent. In the cleaning process, the continuous pipe is pressed, the fresh water contained in the inner pipe is discharged to dissolve salt crystals, and the purpose of self-cleaning blockage removal without moving the pipe column is achieved.

The present application provides a low-fat whipping cream and a preparation method thereof. Without introducing non-milk protein and non-milk oil raw materials, the present application utilizes the physicochemical properties of casein in milk. First, the casein is separated according to the aggregation state by centrifugation. Then, the aggregation of casein is further promoted by adjusting the pH. Finally, the casein components in different aggregation states are combined in a certain proportion, and then added to the separated cream to prepare the low-fat whipping cream. The problem that the low-fat cream cannot form a foam structure or has poor foam stability is solved. At the same time, the reduction of fat content can meet the needs of consumers for health and improve people's quality of life.

[Problem] To provide a polymerizable silicone monomer capable of providing a polymer having excellent transparency, surface hydrophilicity, durability, and stain resistance, a method for producing the same, a curable composition containing the monomer, a polymer obtained by polymerizing the composition, and an ophthalmic instrument formed using the polymer. [Solution] A polymerizable silicone monomer represented by formula (1) (in the formula, R1 independently represents a monovalent hydrocarbon group having 1-4 carbon atoms, R2 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, R3 represents a hydrogen atom or a methyl group, A1 represents a single bond or a divalent hydrocarbon group having 1-20 carbon atoms, R2 represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, and R3 represents a hydrogen atom or a methyl group; q is a divalent group selected from the group consisting of-A2-O-A3-and-O-A4-O-, A2 and A3 are each independently a single bond or a divalent hydrocarbon group having 1-3 carbon atoms and optionally having a branched chain, at least one of hydrogen atoms bonded to the carbon atoms of the divalent hydrocarbon group may be substituted by an alkoxy group having 1-4 carbon atoms, A2 and A3 are not a single bond at the same time, and A3 and A3 are each independently a single bond or a divalent hydrocarbon group having 1-3 carbon atoms and optionally substituted by an alkoxy group having 1-4 carbon atoms. A4 is a divalent hydrocarbon group having 1-3 carbon atoms and optionally having a branched chain, at least one of hydrogen atoms bonded to the carbon atoms of the divalent hydrocarbon group may be substituted by an alkoxy group having 1-4 carbon atoms, and n is an integer of 1-3.

The present application belongs to the field of metallurgy, and discloses a method for removing arsenic, antimony and bismuth from crude copper, comprising the following steps: S1. Melting crude copper raw material to obtain molten copper liquid, and controlling the temperature of the molten copper liquid to be 1150-1250 DEG C; S2. Adding a slagging agent to the molten copper liquid, and introducing oxygen-containing gas to remove impurities from the molten copper liquid; first, maintaining the oxygen volume concentration at 0.1%-0.5%, adding a part of the slagging agent to react; then, increasing the oxygen volume concentration to 1.5%-3.0%, and adding the remaining slagging agent to react; wherein the slagging agent comprises an alkaline carbonate, an oxidizing agent and a crystal nucleus inducer; the oxidizing agent is sodium nitrate or / and potassium nitrate; S3. Allowing the molten copper liquid to be separated from the slag phase, and removing the slag to obtain refined copper liquid. The method can deeply remove arsenic, antimony and bismuth, and can reduce the amount of slag, and the slag system has good fluidity and is easy to separate, so that the copper purity is improved while the recovery rate is ensured.

This invention discloses a method for controlling inclusions in titanium-containing ultra-low carbon steel. The steelmaking process is as follows: converter process – LF process – RH process – slab continuous casting process. After aluminum deoxidation and alloying in the RH process, low-reactive slag is added. As the vacuum molten steel circulates, this slag floats to the surface and remains at the steel-slag interface, hindering oxygen transfer from the ladle slag to the molten steel. Simultaneously, this substance has the ability to adsorb inclusions in the steel. By controlling the process parameters of the RH process, oxygen transfer from the ladle slag to the molten steel is effectively prevented, avoiding secondary oxidation of titanium and aluminum elements in the deoxidized steel and controlling the inclusion content in the steel. This invention's control method effectively prevents oxygen transfer from the ladle slag to the molten steel and avoids secondary oxidation of easily oxidized elements such as titanium and aluminum in the deoxidized steel, resulting in significant economic and social benefits.