44results about How to "Simplify the dosing process" patented technology

The invention relates to a molten steel vacuum extraction system and a method thereof. The vacuum extraction system comprises a vacuum tank, a vacuum-pumping system and an exhaust pipeline arranged between the vacuum tank and the vacuum-pumping system, wherein, the vacuum tank comprises a vacuum tank body, a vacuum tank cover arranged at the top of the vacuum tank body, a ladle arranged inside the vacuum tank body, an oxygen system positioned at the top of the vacuum tank and an argon system arranged at the bottom of the vacuum tank body, and also comprises at least a vacuum mechanical pumps group and a impurity removal and treatment system arranged on the exhaust pipeline. The invention solves the technical problems of high energy consumption, poor impurity removal effect and environmental pollution in the background technology and adopts the vacuum mechanical pump group with good control of degree of vacuum and sound molten steel refining and substantial cost reduction.

The invention discloses a phosphate rock flotation collector. The phosphate rock flotation collector comprises, by weight ratio, 20-70 parts of Y and 30-80 parts of S; the Y comprises, by weight ratio, 60-30 parts of lauryl amine, 20-40 parts of mixed amine and 20-30 parts of hydrochloric acid; the S comprises, by weight ratio, 20-40 parts of oleic acid, 20-40 parts of phenmethyl hydroximic acid, 20-30 parts of caustic soda and 10-20 parts of sulfuric acid. The invention further discloses a preparation method of the phosphate rock flotation collector. The phosphate rock flotation collector and the preparation method have the beneficial effects that the selectivity and the collecting property are strong, the flotation time is short, the interference caused by other ions in pulp is small, the technological operation is simple, and the economic benefit is remarkable; the grade of P2O5 can be improved by about 5%, and the phosphorus comprehensive recovery rate can be improved by about 10%; poisonous and side effects do not exist, pollution to the environment can be avoided; and the raw material source channels are convenient, and the preparation method is simple.

The present invention relates to metal reducing apparatus, and is especially one metal Mg, Ca and Sr reducing apparatus. The metal Mg, Ca and Sr reducing apparatus includes a reducing furnace, a reducing pot inside the reducing furnace, and a support in the bottom of the reducing furnace. The reducing furnace has vertical hearth with upper port in the top and lower port in the bottom; the reducing pot has slag tap in its bottom, slag pipe fixed to its bottom, sealing cover in the lower end of slag pipe, sealing ring between the sealing cover and the slag pipe, and water jacket set to the lower section of the slag pipe. The metal Mg, Ca and Sr reducing apparatus has greatly simplified slag tapping operation and raised material reducing effect.

The invention relates to paraffin removing and resisting agent for an oil well, which is composed of 5 to 15% of polyoxyethylenesorbitololeate, 15 to 25% of polyoxyethyleneoctadecylamine-8, 20 to 30% of polyoxyethyleneoleylether-11, 35 to 45% of water and 2 to 8% sodium acetate. The paraffin removing and resisting agent has no possibility of burning and explosion, is generally larger than 0.93 in specific gravity, can be added into a high water content oil well from a sleeve, is easy to sink to the well bottom, and can remove and resist paraffin. The paraffin removing and resisting agent not only can remove and resist the paraffin, but also can reduce viscosity. The paraffin removing and resisting agent has no corrosion performance, is small in corrosion on oil extraction equipment, lower than -30 DEG C in condensation point and suitable for being used in cold seasons, and can simplify chemicals adding procedures.

The present invention discloses a composite polymer sludge dewatering agent and a preparation method thereof. The preparation method comprises: (1) respectively preparing a non-ionic monomer, an anionic monomer and a cationic monomer into aqueous solutions with deionized water, mixing, adjusting the pH value to 2-6, introducing nitrogen, and stirring; (2) adding a persulfate initiator, a sulfite reducing agent, an azo initiator and EDTA-2Na to the mixed solution prepared in the step (1), controlling the reaction temperature at 25-50 DEG C, and triggering a chain initiation and chain extending reaction; and (3) after the reaction in the step (2) is performed for 2-4 h, adding an inorganic salt, completely stirring, continuously introducing nitrogen to react for 1-3 h, discharging the material, and sequentially carrying out drying, crushing and granulation on the obtained colloid so as to obtain the sludge dewatering agent. The sludge dewatering agent of the present invention has advantages of complex water body conditioning, low consumption, low cost, thick floc, no residual toxic-harmful monomer, low moisture content of the treated sludge, inorganic suspended solids, good treatment effect, and the like.

The present invention relates to a flattening device, and particularly relates to a feed quantitative flattening device. The technical problem to be solved is to provide the feed quantitative flattening device which can be used for flattening more feeds and is convenient to collect. The feed quantitative flattening device comprises a supporting frame, a frame body, a power assembly, a flattening assembly and a discharging assembly, wherein the frame body is fixedly connected to the supporting frame through bolts; the power assembly is mounted on the supporting frame; the flattening assembly isslidably mounted on the frame body; and the discharging assembly is slidably mounted on the frame body. According to the feed quantitative flattening device, the flattening assembly is driven by thepower assembly to perform quantitative flattening work of the feeds, and the flattening assembly is matched with the discharging assembly, so that the flattened feeds automatically slide off, and thecollection work is facilitated, in addition, a material storage box and rotating rods and a semicircular cylinder at the bottom can simplify the feeding process and facilitate operation, and meanwhile, the force provided by the power assembly to the flattening assembly for flattening operation can simultaneously control the semicircular cylinder to rotate automatically.

The present invention relates to metal reducing apparatus, and is especially one metal Mg, Ca and Sr reducing apparatus. The metal Mg, Ca and Sr reducing apparatus includes a reducing furnace, a reducing pot inside the reducing furnace, and a support in the bottom of the reducing furnace. The reducing furnace has vertical hearth with upper port in the top and lower port in the bottom; the reducing pot has slag tap in its bottom, slag pipe fixed to its bottom, sealing cover in the lower end of slag pipe, sealing ring between the sealing cover and the slag pipe, and water jacket set to the lower section of the slag pipe. The metal Mg, Ca and Sr reducing apparatus has greatly simplified slag tapping operation and raised material reducing effect.

The invention provides an integrated composite emulsion type clean fracturing fluid capable of being blended on line and a preparation method thereof. A low-concentration emulsion thickening agent which has good resistance reduction performance and cross-linked rubber which is formed by cross-linking of a high-concentration emulsion thickening agent and has good sand-carrying performance are utilized for preparing the integrated composite emulsion type clean fracturing fluid capable of being blended on line. The system is characterized in that the low-concentration emulsion thickening agent isadopted to prepare slick water, the high-concentration emulsion thickening agent is adopted to prepare linear rubber, and the linear rubber is combined with a cross-linking agent to form the cross-linked rubber, thereby realizing multi-purpose effects of one emulsion thickening agent. Compared with the existing composite fracturing fluid, the integrated composite emulsion type clean fracturing fluid system capable of being blended on line, provided by the invention, has the advantages that the formula is simple, the types of additives are few, continuous blending can be realized under the condition that the fluid does not need to be prepared in advance during construction, the quantity of on-site fluid storage tank groups is reduced, and fluid preparation processes can be simplified and alot of cost can be saved during fracturing construction. Other properties of the system are not weaker than those of existing other products.

The invention provides a self-foaming waterborne polyurethane resin emulsion and a preparation method thereof. The waterborne polyurethane resin emulsion is prepared from the following raw materials:polyol, polyisocyanate, a hydrophilic chain extender, a small molecular alcohol chain extender, an organic silicon or fluorine-containing compound containing active hydrogen, an amine chain extender,a catalyst and a salt forming agent. According to the invention, the silicon-containing or fluorine-containing nonionic surfactant is introduced into a molecular chain, so that the waterborne polyurethane resin can be self-foamed under the action of high shearing force, the production process of synthetic leather is simplified, the production cost is greatly reduced, the production efficiency is effectively improved, and meanwhile, the situation that an external foaming agent and a foam stabilizer are easy to separate out is avoided.

The invention discloses a sorting machine suitable for an IC chip conveying device, and the sorting machine comprises a feeding opening, a qualified material opening and a waste material opening, andfurther comprises a sorting area and a sorting block capable of containing IC chips. In the vertical direction of the sorting area, the sorting area, the feeding opening and the qualified material opening are located on the same track; the sorting area is communicated with a waste port in the horizontal direction; the sorting block can convey the IC chips from the sorting area to the waste material opening; and the qualified material opening is perpendicular to the blanking direction of the waste material opening. An existing IC chip conveying mode is changed, a material receiving table is removed, and the feeding opening and the qualified material opening are formed in the same track, so qualified IC chips can directly enter a material pipe through the qualified material opening, and theconveying efficiency is high; the qualified material opening is perpendicular to the blanking direction of the waste material opening, so the IC chips in the sorting area can be directly dragged to the waste material opening by directly adopting the sorting block; the whole separation process only needs the separation block to complete one-time action, and is efficient and convenient.

The invention belongs to the technical field of composting devices, and particularly relates to a stage air-blowing composting device. The stage air-blowing composting device aims at solving the problems of long composting period and high energy consumption when existing composting devices are adopted for conducting aerobic composting treatment on organic solid waste. The stage air-blowing composting device comprises a reaction tank, an air blowing unit and a stirring unit; the reaction tank is internally provided with four clapboards which divide the interior of the reaction tank into five regions, and each clapboard is provided with a discharge hole; the air blowing unit is provided with a main pipe, a plurality of branch pipes and a plurality of air distribution pipes, and the air distribution pipes are arranged in different regions in the tank body respectively and communicated with the main pipe through the independent branch pipes; the stirring unit includes blades connected to arotating shaft, and at least one set of blades are arranged on each clapboard. By means of the stage air-blowing composting device, oxygen can be accurately supplied according to the demand amount ofoxygen in different stages of aerobic composting fermentation, the oxygen utilization rate is increased, the composting period is shortened, and the energy consumption is reduced.

The invention discloses an apparatus and a method used for synthesizing zinc germanium diphosphide polycrystalline. The apparatus comprises a crucible, a heating furnace, and a motor. An explosion-proof steel pipe is arranged in the heating furnace, and the crucible is arranged in the explosion-proof steel pipe. The motor is connected to the inner part of the explosion-proof steel pipe through a linkage bar. According to the invention, the crucible is rotated, such that phosphor can subject to a sufficient reaction, and the yield and the purity of the grown zinc germanium diphosphide polycrystalline are high. Also, the yield of the zinc germanium diphosphide polycrystalline obtained through one time of synthesizing is large. Therefore, the apparatus and the method are suitable to be popularized.

The invention discloses a flotation reagent moving intelligent adding system for a coal flotation coal preparation process. The flotation reagent moving intelligent adding system comprises an integral industrial personal computer, a data collecting module, a handheld mobile terminal, industrial WIFI and a reagent adding device. One ends of reagent adding pipes of the reagent adding device are connected with inlets of diaphragm metering pumps, and the other ends of the reagent adding pipes are connected with on-site reagent boxes. One ends of reagent discharging pipes are connected with outlets of the diaphragm metering pumps, and the other ends of the reagent discharging pipes are connected with an on-site flotation machine. Y-shaped filters and reagent adding pipe check valves are installed on the reagent adding pipes, and pulse dampers, back pressure valves, flow detectors and reagent discharging pipe check valves are installed on the reagent discharging pipes. The flow detectors and the diaphragm metering pumps achieve data interaction with the integral industrial personal computer though the data collecting module, and the integral industrial personal computer is in wireless connection with the handheld mobile terminal through the industrial WIFI. The problems that traditional reagent adding systems are obvious in hysteresis property and large in labor amount, the fusion degree between actual working conditions and given decisions is not high, and potential safety hazards exist are solved through the flotation reagent moving intelligent adding system.

The invention provides a multifunctional clay stabilizer. The multifunctional clay stabilizer is prepared through the following steps: 1, performing stirring reaction on allyl chloride and a dimethylamine water solution under the conditions that the pH value is 7-9 and the temperature is 40-50 DEG C for 3-4 hours to obtain a mixed solution A; 2, adding an AMPS (2-acrylamido-methylpropanesulfonic acid) water solution into the mixed solution A, dropwisely adding initiator, reacting under the condition that the temperature is 75-80 DEG C, and diluting with water to obtain a solution B; 3, stirring and uniformly mixing active aid, isopropanol and water to obtain a solution C; and 4, uniformly mixing the solution B and the solution C according to a mass ratio of 1:1 to obtain the multifunctional clay stabilizer. The clay stabilizer provided by the invention not only has a high-efficiency anti-swelling effect, but also has a discharge aid effect at the same time, so that the original single function (clay anti-swelling) is changed into multiple functions and high efficiency (anti-swelling and discharge aiding).

The invention discloses a spreading device of compound feed for intensive culture of crayfishes, and an application method of the spreading device. The spreading device comprises a mounting mechanismand a spreading mechanism. The spreading mechanism is movably connected with the mounting mechanism. A solar cell panel is electrically connected with an air cylinder and a motor through wires, and provides an electric power support for the air cylinder and the motor. Solar power supply is adopted to effectively reduce energy consumption, hidden safety hazards caused by embedded cables are avoidedwhile the cost is saved, and the practicality is high; a feeding process of the compound feed for intensive culture of the crayfishes is realized through mounting and demounting of an end cap, a cylinder shell serves as a container for the compound feed for intensive culture of the crayfishes, the capacity is high, and the device is convenient to use; a transmission shaft drives a spreading cylinder component to rotate, and the compound feed for intensive culture of the crayfishes move centrifugally in the cylinder shell to be thrown out from a spreading hole; the compound feed for intensiveculture of the crayfishes rotates and turns over in the cylinder shell, so that the compound feed added is stirred while clogging is effectively avoided, mixing of various feed in advance is not needed, and time and labor are saved.

The invention belongs to the technical field of medicine preparations, and particularly relates to a taxol freeze-dried powder preparation process and a product. The taxol freeze-dried powder preparation process is simple in route, production cost is low, transportation and storage is simple and convenient, and adverse reaction caused by addition of excipients is avoided. In-vitro stability of taxol micelle freeze-dried powder is higher, redissolved taxol solution is stably kept 12 hours or than at room temperature, and drug treatment requirements are met. Blood stability is higher, grain diameter is small, an EPR effect is more easily played, taxol freeze-dried powder can be redissolved by the aid of common normal saline or glucose injection, and drug administration processes are greatlysimplified.

The invention provides a honey suppository mould for geriatric nursing in an internal medicine department, and effectively solves the problems of complicated administration process, inconvenient control of administration depth, and easy infection of an existing suppository. The honey suppository mould is characterized by comprising a horizontally-placed cylinder, wherein a baffle plate is fixed tothe inside of the cylinder, a push rod is arranged in the cylinder, a cylindrical shell is placed in the left end of a cylinder cavity, a circular plate is arranged at the right end of the shell, theleft end of the push rod is located in the shell, sealed cavities are formed among the circular plate, the baffle plate and the side wall of the cylinder, and a pressure rod is arranged at the left end of the shell; an annular air bag is fixed to the outer side wall of the right end of the cylinder, the right end of the cylinder is connected with an annular sleeve through threads, the right end of the annular sleeve is covered with a rubber thin film, and a hole is formed in the center of the rubber thin film; the outside of the cylinder is sleeved with an annular plate. The mould provided by the invention is ingenious in design, the suppository administration process is simplified, the operation is simple, a suppository can be put in place at one time, the skin mucous membrane of an insertion part of a patient is not required to be touched in the whole process, the possibility of cross infection is reduced, the suppository enters the cavity smoothly, simplicity and practicality arerealized, and the adaptation is wide.

The invention discloses a preparation method of an efficient coagulant. The efficient coagulant comprises the following components in percentage by weight: 20-40% of a coagulant main agent, 20-60% of deionized water, 20-40% of a settling agent and 1-8% of an emulsion stabilizer. According to the preparation method, the coagulation effect and the eurytopic applicability can be improved; by adding the emulsion stabilizer, the settling agent can be uniformly mixed with the coagulant main agent, so that the coagulation speed is accelerated; the preparation method is simple and convenient to use; and when the efficient coagulant is used for treating degradation-resistant high-concentration organic wastewater, generated flocs are large, the settling speed is high, and the treatment effect is good.

The invention relates to the technical field of chemical engineering, and particularly relates to a polyhydric alcohol with poly-carbonate cyclohexyl and preparation method thereof. Through catalyses by the liquid-bimetal cyanide catalyst, using small molecule polyhydric alcohol or polyatomic acid as initiator, open-cycled adjusting and polymerizing with carbon dioxide and oxidized cyclohexene, to prepare the low molecular weight, polyhydric alcohol with poly carbonate cyclohexyl, where two ends of the molecular chain have hydroxyls. The polyhydric alcohol belongs to the aliphatic class of poly carbonate cyclohexyl; it can be used as an important raw material for polyurethane. The molecule contains highly proportioned carbonate ester radical group, has very high molecule cohesive energy, and bears ring-side radical group for fat, giving superior physical strength, extreme hardness and superior solvent resistance for polyurethane material; it has excellent application prospect in various polyurethane fields.

The invention relates to a preparation method of an organic aluminum cross-linking agent capable of being cross-linked with a W / O inverse emulsion type drag reducer. The preparation method comprises the following steps: (1) dissolving organic aluminum in water in a reaction kettle, and stirring until the organic aluminum is completely dissolved to prepare a mixed solution I, wherein the mass fraction of first organic aluminum in the mixed solution I is 6-7%, and the mass fraction of second organic aluminum in the mixed solution I is 1-2%; (2) heating the mixed solution I in the step (1) to 50-90 DEG C, dropwise adding an organic complex ligand into the mixed solution I while stirring to obtain a mixed solution II, and ensuring that the mass fraction of organic matters serving as the complex ligand in the mixed solution II is 5-6%; and (3) reacting the mixed solution II in the step (2) at a constant temperature of 50-90 DEG C for 3-5 hours, and cooling to room temperature to obtain a faint yellow uniform transparent clear liquid, namely the organic aluminum cross-linking agent. According to the invention, online mixing of the glue solution can be realized, the fracturing transformation difficulty of the shale oil and gas reservoir is reduced, and the transformation efficiency is improved.

The invention discloses a novel bactericidal corrosion inhibitor. The corrosion inhibitor comprises the following components in percentage by mass: measured by the mass of the composition as 100%, 1-30% of biquaternary ammonium salt of quinoline and alkyl tertiary ammonium, 1-30% of biquaternary ammonium salt of alkyl tertiary ammonium, 1-15% of organic urea compound, 1-10% of organic amine compound, 1-20% of alkyl quaternary ammonium salt, 1-10% of glutaraldehyde, 1-10% of alkynyl alcohol, 1-10% of higher fatty acid amides derivative, 1-10% of alkylphenol polyoxyethylene polyoxypropylene ether and the balance of water; the corrosion inhibitor disclosed by the invention can control the corrosion of media with different oil-water ratios in the oil well output liquid of an oil-gas-water gathering and transportation system in the oilfield production, when the corrosion inhibitor addition reaches 100mg / L, the inhibition rate can reach above 75%, the corrosion rate can be controlled at below 0.076mm / a, the sterilization rate reaches above 99%, and the problems that the adaptation range of a commercially available corrosion inhibitor to the change in the properties of the media of the oil well output liquid is small, the inhibition rate is low, the emulsion affects demulsification and the commercially available corrosion inhibitor can not control the bacterial reproduction of the medium are solved.

The invention provides a layer-by-layer slow release water treatment agent for delaying sea water membrane pollution and a preparation method thereof, and relates to the technical field of slow release water treatment agents. The layer-by-layer slow release water treatment agent for delaying sea water membrane pollution consists of an adsorption agent inner layer, a coagulant aid covering layer and a flocculating agent outer layer, wherein inner layer adsorbing agents are powdery active carbon and diatomite; covering layer coagulant aids are polyacrylamide and poly dimethyl diallyl ammonium chloride; outer layer flocculating agents are iron type and aluminum type flocculating agents. The preparation method of the layer-by-layer slow release water treatment agent for delaying sea water membrane pollution comprises the following steps that the powdery active carbon and the diatomite are put into a pelleting machine to perform circumferential rotation; the diluted coagulant aid solution is added onto the rotating powdery active carbon and diatomite to perform covering; particles are formed; the flocculating agents are added and wrap the outermost layer of the particles; rotating and drying are performed. The flocculation, the coagulation aid, the adsorption and the dynamic membrane are integrated; the layer-by-layer slow release structure is used; cooperative and synergistic action is achieved; the membrane pollution resistance is reduced; the membrane pollution is delayed; the preparation process is simple; the operation is convenient; the application prospects are good.

The invention discloses an electronically-driven coupled bioelectrochemical degradation system and method and application thereof. The system comprises to-be-treated soil, plants planted in the soil, a cathode layer and an anode layer which are located on the two sides of a soil matrix respectively, a wire connected between the cathode layer and the anode layer, and an external resistor connected to the wire. Semiconductor mineral particles and humus are doped in the soil matrix. The degradation system can quickly and efficiently treat high-concentration organic pollutants, antibiotics, heavy metals and combined pollution of the organic pollutants, the antibiotics and the heavy metals at the same time, and secondary pollution cannot be generated in the degradation process.

The invention belongs to the technical field of pharmaceutical preparations, and particularly discloses a preparation process and product of paclitaxel freeze-dried powder. The preparation process of the paclitaxel freeze-dried powder has the advantages of simple route, low production cost, and easier and more convenient transportation and storage, and avoids adverse reactions caused by adding excipients. The prepared paclitaxel micelle freeze-dried powder has high stability in vitro, and a paclitaxel solution obtained through redissolution of the paclitaxel micelle freeze-dried powder remains stable at room temperature for more than 12 hours and meets the requirements of drug treatment. The paclitaxel freeze-dried powder has higher blood stability, smaller particle size, and is more likely to exert an ERP effect. The paclitaxel freeze-dried powder can be re-dissolved by use of an ordinary physiological saline or glucose injection, and thus the administration process is greatly simplified.

The invention discloses a preparation method of a composite multifunctional sterilization agent for an oil field. The method comprises the following steps of sequentially adding octadecylamine and potassium hydroxide according to a certain ratio into a first reaction container; raising the temperature; performing vacuum dewatering for a period of time; then, continuously introducing a certain amount of epoxy ethane; after the feeding is completed, lowering the pressure, starting the vacuum dewatering for a certain time; after the temperature lowering, obtaining a first product; 2, adding a certain amount of tertiary amine and deionized water into a second reaction container; after the temperature rise, dripping benzyl chloride; maintaining the reaction temperature; after the benzyl chloride dripping is completed, obtaining a second product; 3, adding a certain quantity of the first product, the second product, quaternary phosphonium salt, organic phosphonic acid and water into the second reaction container; performing heating and sufficient stirring to obtain a third product. The FTS-04 oil field polymer-containing sewage has stable water quality; one agent has multifunction and can completely replace a sterilization agent, a corrosion inhibitor and a scale inhibitor; on the basis of not increasing the agent consumption, the effect of multifunction of one agent is achieved; thechemical addition work procedure is simplified.

The invention provides a rubber stopper or aluminum-plastic cover feeding device which comprises a rotating frame and a bottle-shaped operating barrel, wherein the bottle-shaped operating barrel is internally provided with a baffle plate along the axial direction, the operating barrel is divided into two parts; the rotating frame comprises a bracket platform, two passive rotating rolls arranged on the bracket platform and matched with the barrel body of the bottle shaped operating barrel, and a cone trolley matched with a barrel shoulder of the bottle-shaped operating barrel; and the bracket platform is provided with a lifting device for enabling the barrel opening of the bottle-shaped operating barrel to incline downwards. The rubber stopper or aluminum-plastic cover feeding device provided by the invention is provided with the rotating frame and a supporting device for enabling the rotating frame to incline, therefore, rubber stoppers or aluminum-plastic covers can be gradually and properly fed into a hopper without using a lifting machine or turning the operating barrel and using an intermediate coupler for oscillation.

The invention relates to the technical field of chemical engineering, in particular to a metal for preparing and obtaining preparing and obtaining high-performance polyether polyol. Under the catalysteffect of a liquid double metal cyanide catalyst, micromolecular polyol or polybasic acid and the like are used as starting agents; phenylformic acid and methyl ethyl ketone are used for loop openingregulation polymerization; polyether polyol with low molecular weight and with hydroxyl groups at the two ends of the molecular chains are prepared; the polyol belongs to aliphatic polycarbonate polyol, and can be used as an important raw material of polyurethane materials; high-proportion carbonic ether groups with high proportion are contained in molecules; the high molecule cohesion performance is realized; in addition, cycloaliphatic ring lateral groups are contained; excellent physical intensity, high hardness and excellent anti-solvent performance are given to the polyurethane material;good application prospects are realized in various fields of polyurethane industry.

The invention discloses a method for immunizing animals by using a needleless injector, which comprises the following steps: S1, preparing an antigen mixed solution, the antigen mixed solution comprises DNA expression plasmid, CPG-ODN adjuvant and normal saline, and the DNA expression plasmid is used as a specific antigen; s2, performing needleless injection immunization on an immune animal, and injecting the prepared antigen mixed solution into the immune animal body by using a needleless injector, so that an immune reaction occurs in the immune animal body, and an antibody aiming at a specific antigen is generated; and S3, repeatedly performing needle-free injection immunization, and after 2-6 times of needle-free injection immunization, detecting the titer of the antibody aiming at the specific antigen in the immune animal serum. According to the immunization method provided by the invention, the immune response of animals is greatly improved, more opportunities are provided for research and development of monoclonal antibody drugs, the administration process is simplified by a needle-free injection immunization mode, the pain and complications of experimental animals are reduced, and the occupational safety of experimental operators can also be improved.

The invention discloses synthesis and application of a macromolecular heavy metal chelating agent, and belongs to the field of macromolecular materials, environmental engineering and sewage treatment. The macromolecular heavy metal chelating agent contains dithiocarbamic groups and amide groups, is a macromolecular polymer and has a flocculent precipitate effect by itself. The macromolecular heavy metal chelating agent is good in water solubility, capable of reacting with heavy metal in water and wide in pH application range, it is not needed to add a flocculating agent when the heavy metal is treated, the raw materials are low in price, synthetic reaction is short in time, an obtained product is a white solid convenient to transport and can react with kinds of heavy metal in an ionic or complexing state and cause flocculent precipitate, and the chelating agent can be used for chelating, flocculating and removing the heavy metal, in the ionic or complexing state, in the industrial sewage to achieve application of macromolecular materials to the environmental protection field.

The invention discloses a multifunctional iron ion stabilizer for acidification and a preparation method thereof. The preparation method comprises: 1. placing industrial hydrochloric acid in a reaction vessel with a reflux condenser, and turning on the reflux condenser to carry out the industrial hydrochloric acid Condensate, under the condition of stirring at a temperature of 10°C to 20°C, add industrial hydrazine hydrate dropwise to the reaction vessel, stir and react for 20min to 60min, then add water to the reactor, stir evenly to obtain solution A; 1. Dissolve citric acid, emulsifier OP‑10 and isopropanol in water to obtain solution B; 3. At room temperature, mix solution A and solution B uniformly according to the mass ratio of 1: (1~1.5) to obtain poly Iron ion stabilizer for functional acidification. The method of the invention is simple, does not require special equipment and special process conditions, and the prepared multifunctional iron ion stabilizer for acidification not only has an efficient iron stabilizing effect, but also has the effect of a drainage aid.