538 results about "Diluent" patented technology

The invention relates to a method for decalcification and carbon sequestration of fly ash water washing liquid. According to the method, the extraction effect of insoluble organic amine on acid is utilized to improve the pH value of a water washing liquid system, CO2 is continuously absorbed, and calcium in the fly ash water washing liquid is completely removed; the amine in the organic phase is regenerated through alkali, and meanwhile, a small amount of organic diluent mixed in the water washing liquid is separated from low-boiling-point azeotrope containing the organic diluent at the tower top through azeotropic distillation, so that recycling is realized. The prepared calcium carbonate product is small in particle and high in purity, is a high-quality vaterite type calcium carbonate particle, can be used as a very good adsorbent and additive material, and has wide application in multiple fields.

The invention discloses a preparation method of a long-acting interface lubricating coating, which comprises the following steps: (1) adding 5-7 parts by mass of nano sol, 4-6 parts by mass of micron porous powder, 1.0-1.2 parts by mass of low surface energy substance and 4-6 parts by mass of ammonia water into 80-120 parts by mass of ethanol, and stirring under a water bath heating condition to obtain a modified micron particle suspension, the suspension liquid is dried into powder at high temperature, and modified porous powder is obtained; (2) fully mixing 0.8-1.2 parts by mass of the modified porous powder and 3-5 parts by mass of silicone oil, putting the mixture into a vacuum pump to vacuumize so that the silicone oil can enter the modified porous powder, and after the vacuum state is removed, separating redundant silicone oil to obtain porous powder containing silicone oil; (3) carrying out hole sealing treatment on the porous powder containing the silicone oil, drying at a high temperature, and then mixing with the silicone oil to obtain a mixed solution of the hole sealing powder and the silicone oil; and (4) firstly adding 2.5-4 parts by mass of resin into 2-5 parts by mass of a diluent, then adding 0.5-0.6 part by mass of a silane coupling agent, then adding 0.5-0.8 part by mass of the mixed solution obtained in the step (3), finally adding 0.75-1.2 parts by mass of a curing agent, uniformly mixing, brushing or spraying onto a substrate, and airing to obtain the interface lubricating coating.

The invention provides a method for measuring silver content in boron-containing water, which comprises the following steps: preparing a blank standard solution and a standard working solution by using a first-stage diluent and a second-stage diluent, and respectively pretreating the blank standard solution, the standard working solution and a to-be-measured sample solution by using a third-stage diluent; the first-stage diluent comprises a nitric acid solution, the second-stage diluent comprises a boron solution, and the third-stage diluent comprises a nitric acid solution; and measuring the silver content of the to-be-measured sample solution by adopting inductively coupled plasma emission spectrometry. According to the determination method provided by the invention, the silver content in the boron-containing water of the nuclear power plant can be accurately and rapidly detected through pretreatment of the test solution, the problem of boron interference in the boron-containing water is solved, the detection accuracy of the silver content is improved, and support is provided for chemical control of nuclear power loop water.

The invention relates to an automatic solid chemical dilution device and a control method, the automatic solid chemical dilution device comprises a dissolving and stirring assembly, a material adding assembly, a pure water supply assembly, a nitrogen supply assembly, a detection and storage assembly and a control system, and the control system is electrically connected with the above assemblies. According to detection data of the liquid level height detection device, the electronic scale and the conductivity concentration meter, the adding amount, the adding speed and the stirring process of pure water and solid chemicals are automatically controlled, automatic deviation correction is executed when the detected concentration deviates from a target, and the diluent is fed into a finished product tank for storage when the concentration of the diluent is qualified. The automatic dilution device for the solid chemicals can realize automatic control of the whole dilution process, ensures the concentration stability and the dissolution uniformity, improves the production efficiency and the safety, and is suitable for the field with high requirements on solution precision and safety.

The invention provides a preparation method of a film-forming enhancer for water-based drilling fluid, which is characterized by comprising the following steps: A) mixing a phenolic compound, water and inorganic base, adjusting the pH value, adding a silicon reagent, and reacting to obtain a first reaction solution; b) mixing phenol, formaldehyde, a sulfonating reagent and the first reaction solution, and reacting to obtain a second reaction solution; c) mixing the second reaction solution with water to obtain a diluent, and reacting to obtain a third reaction solution; and cooling and drying the third reaction liquid to obtain the product. The film-forming enhancer is silicon-modified sulfonated phenolic resin and is prepared by reacting water-soluble silicate with phenols, formaldehyde, a sulfonic acid reagent and inorganic base at high temperature and high pressure. The film-forming enhancer provided by the invention can effectively improve the performance of a drilling fluid system, improve the quality of a mud cake and control the high-temperature and high-pressure filter loss, has a good reservoir protection effect, and forms a new technology integrating well wall stabilization, leakage prevention and stoppage, formation pressure bearing improvement and reservoir protection; and the requirements of slim hole drilling well wall stability, safe drilling and reservoir protection can be met.

The invention belongs to the technical field of iron ion detection, and particularly relates to a rapid detection method for ferric ions in water, which comprises the following steps: a fluorescent probe preparation step: taking trihydrate of copper nitrate and tryptamine, adding into a centrifuge tube in sequence, adding ultrapure water, performing ultrasonic dissolution, transferring into a high-pressure reaction kettle, and performing hydrothermal reaction to obtain a fluorescent probe; cooling to room temperature, centrifuging the obtained yellow green solution in a centrifugal machine, and filtering the supernate through a microfiltration membrane to obtain a copper-doped carbon quantum dot CuCDs stock solution, namely the fluorescent probe; analyzing and determining Fe < 3 + >: taking the diluent of the prepared CuCDs solution, adding the diluent into a centrifugal tube containing a Fe < 3 + > standard solution, uniformly mixing, carrying out fluorescent quantitative analysis and detection, and exploring the change rule of the fluorescence intensity ratio of CuCDs; according to the rapid detection method for Fe < 3 + > provided by the invention, the synthesized CuCDs have high sensitivity, can realize on-site rapid detection of Fe < 3 + > in a water medium, and shows a wide application prospect in the field of environmental monitoring.

In one example, a gas turbine system, includes a pressurized fluid delivery system configured to deliver into a combustor system, which includes a pressurized fuel fluid, a pressurized oxidant fluid; and a pressurized diluent fluid comprising a diluent. The gas turbine system also includes an oxidant fluid discharge system configured to control a first flow of the pressurized oxidant fluid incoming from the pressurized fuel delivery system into the combustor system, and a pressurized diluent injection system configured to control a second flow of the pressurized diluent fluid incoming from the pressurized fuel delivery system into an upstream diluted fuel rich combustion stage included in the combustor system, and into a. downstream diluted oxidant combustion stage included in the combustor system, wherein the pressurized diluent fluid comprises a. superheated fluid. The gas turbine system additionally includes a control system.

The invention provides a method for enriching diluents with butane so as not to violate pre-defined limits for liquid hydrocarbon fuels with respect to density, volatility and low density hydrocarbon content.

A process for oligomerizing olefins to distillate fuels in the presence of a diluent for absorbing the exotherm. Oligomerization may comprise oligomerizing a charge olefin stream in a first-stage oligomerization reactor which is oligomerized in a second-stage oligomerization reactor to provide an oligomerate stream. The oligomers are hydrogenated and stripped to provide a stripped distillate stream. The diluent may be taken from the stripped distillate stream.

The invention discloses a radiation refrigeration coating and a preparation method thereof. The radiation refrigeration coating comprises the following raw materials in parts by weight: 18-21 parts of epoxy resin, 8-9 parts of a reactive diluent, 22-23 parts of an anhydride curing agent, 25-30 parts of hollow silicon dioxide microspheres, 15-20 parts of high-refractive-index filler, 1.1-1.5 parts of a dispersing agent, 0.2-0.3 part of a flatting agent, 0.3-0.5 part of a curing accelerator and 15-30 parts of a solvent. The high-refractive-index filler is one or more of titanium dioxide, zirconium oxide, zinc oxide and barium sulfate. The hollow silicon dioxide microspheres and the high-refractive-index filler are compounded, and meanwhile, backward scattering and surface scattering are combined, so that the scattering efficiency of the filler is greatly improved, the proportion of the filler can be reduced, and the thickness of the coating can also be reduced.

The invention relates to the technical field of aflatoxin pollution detection, in particular to an automatic pretreatment device for sample preparation for aflatoxin detection, which comprises a crushing and extracting part and an enriching and purifying part. The device can also be divided into a gas path part, a liquid path part and a control part, and the gas path part provides pressure for the liquid path part under the sequential regulation and control of the control part so as to complete the liquid adding and discharging of various liquids. The whole device works cooperatively, so that the work of crushing the sample, quantitatively adding / discharging the extracting solution, quantitatively adding / discharging the diluent, quantitatively adding / discharging the leacheate, quantitatively adding / discharging the eluent, collecting the waste liquid, collecting the supernate and the like can be realized. Specifically, extraction, enrichment purification and collection of AFB1 in a grain sample polluted by aflatoxin can be realized, and the efficiency of the sample preparation process can be effectively improved.

The invention discloses thermally induced phase separation normal-pressure special engineering plastic powder and a preparation method thereof, and belongs to the technical field of high polymer materials, and the method comprises the following steps: mixing special engineering plastic granules, a diluent and a functional additive, and heating and dissolving in stages to form a homogeneous solution; then cooling at the speed of 10-300 DEG C / min to induce solid-liquid phase separation, and solidifying and separating out powder particles; after the diluent is removed through an extracting agent, powder is obtained through reduced-pressure suction filtration, solvent cleaning and vacuum drying. The method is operated under normal pressure, the limitation of a traditional high-pressure method is broken through, the phase separation process is synergistically optimized by regulating and controlling the solubility parameter and the cooling rate of a compound diluent and a functional additive, accurate control over the morphology and the particle size of the powder is achieved, and the obtained powder is high in sphericity degree and narrow in particle size distribution and has excellent fluidity and melting performance; the method is suitable for high-end fields such as laser sintering and electrostatic spraying, and the process is green and environment-friendly.

Systems and method for dispensing chemical include an eductor having a diluent inlet, a chemical pickup port, a discharge port, and a venturi fluidly coupled between the diluent inlet and the discharge port; a selector valve fluidly coupled to the diluent inlet and configured to control a flow of diluent into the diluent inlet; a sensor configured to measure a flow characteristic of the flow of diluent; and a controller operatively coupled to the selector valve. The controller includes at least one processor and memory storing instructions that, when executed, cause the at least one processor to perform operations including opening the selector valve to allow the flow of diluent into the diluent inlet; determining a dispense duration based on the measured flow characteristic and an amount of a chemical to be dispensed; and in response to determining that the dispense duration has elapsed, closing the selector valve.

The device comprises a first connecting plate, the top surface of the first connecting plate is fixedly connected with a connecting cylinder, the top surface of the connecting cylinder is provided with a feed inlet and a water inlet respectively, a stirring mechanism is arranged in the connecting cylinder, the bottom surface of the connecting cylinder is communicated with a discharge pipe, and the discharge pipe is communicated with a feed inlet and a discharge outlet. A quantitative feeding mechanism is arranged outside the discharging pipe and comprises a connecting box fixedly connected to the bottom face of the connecting cylinder, and a first driving part is arranged in the connecting box. A microbial agent and a diluent are respectively fed into a feeding hole and a water inlet in the top of the connecting cylinder, and after the stirring mechanism uniformly stirs a mixture, slurry enters the quantitative feeding mechanism through a discharging pipe. The first driving part adjusts the flow by controlling the opening degree of the discharging pipe, and the conveying mechanism conveys quantitative fungicide to a target area. Efficient mixing and accurate feeding of the fungicide and water are achieved through stirring and quantitative control, the device is suitable for straw covering or turning and burying scenes, and the degradation efficiency is improved.

The invention discloses a compound residue detection method, which adopts liquid chromatography (HPLC) to perform quantitative analysis on residual vomitinib on the surface of equipment, can quickly and accurately determine the drug residue, and ensures that the production environment is clean and meets the drug production quality standard. The method comprises the following steps: preparing a solution, collecting a sample by using a wiping method or a leaching method, and preparing a diluent, a reference stock solution, a reference substance solution and a test solution. The chromatographic conditions are that a Thermo C18 chromatographic column is adopted, the detection wavelength is 332 nm, a mobile phase A is a phosphate buffer solution, a mobile phase B is acetonitrile, and the flow velocity is 1.0 ml / min. Through the method, the residual quantity of the vomitinib can be efficiently detected, the thorough cleaning of production equipment is ensured, the cross contamination of medicines is avoided, and the quality control level of the medicines is improved. The method has the advantages of simplicity and convenience in operation, rapidness in detection, high sensitivity and the like, and is widely applicable to detection and control of drug residues in the pharmaceutical industry.

The utility model discloses a particle size grading device for a non-Newtonian fluid soft rubber microsphere suspension. The device comprises particle size grading vibration equipment, a magnetic scrap iron removing device, a suction filtration barrel, a bag type filter, a storage tank front-back multi-stage centrifugal pump and a liquid storage tank, the multi-stage centrifugal pump behind the storage tank is connected with upper and lower diluent spraying pipelines; upper and lower screens are arranged in the particle size grading vibration equipment; the non-Newtonian fluid flexible glue microsphere suspension is diluted to form microsphere homogenate, the particle size grading vibration equipment performs grading filtration on the microsphere homogenate, the diluent is extracted from the liquid storage tank and conveyed to the upper and lower diluent spraying pipelines, and the spraying pipelines spray the screen; the large-particle-size microspheres remain on the upper-layer screen, the medium-particle-size microspheres remain on the lower-layer screen, homogenate containing the small-particle-size microspheres flows into the suction filtration barrel after passing through the magnetic scrap iron removal device, then enters the liquid storage tank after being subjected to impurity removal through the bag type filter, and circulation is carried out. Different target particle size distribution can be achieved by carrying out primary particle size grading on the non-Newtonian fluid soft rubber microsphere suspension.

To provide a diluent adding system which can be used in a diluent adding system in an organic waste treatment system.SOLUTION: A diluent adding system 100 of adding a diluent to carbonized sludge slurry in an organic waste treatment system including a pretreatment device 2 for carrying out a pretreatment of organic waste, a hydrothermal carbonization device 3 for applying a hydrothermal carbonization treatment to the treated material obtained by the pretreatment, and a solid / liquid separator 4 for subjecting the carbonized sludge slurry obtained by the hydrothermal carbonization treatment to solid / liquid separation, in which the diluent is a separation liquid generated in the organic waste treatment system.SELECTED DRAWING: Figure 1

The utility model is applicable to the field of sewage treatment, and provides a dosing device for dosing a polyaluminum chloride medicament, which comprises a stock solution storage tank, a stock solution tank liquid level meter, a mixer, a stock solution metering pump, a dilution water pipeline, a dilution tank, a dilution tank liquid level meter, a reaction tank and a total phosphorus detector, the stock solution storage pool is used for storing a PAC medicament pumped by a PAC discharge pump, the stock solution storage pool is communicated with the mixer through a stock solution metering pump, the mixer is communicated with a dilution water pipeline, the PAC medicament entering the mixer is fully mixed with raw water, and the dilution pool is communicated with the mixer and is used for temporarily storing a diluent mixed by the mixer; the reaction tank is communicated with the dilution tank through the diluent metering pump, the total phosphorus detector is installed at the liquid inlet and outlet position of the reaction tank and used for monitoring water quality parameters in real time and feeding back the water quality parameters to the control unit, and the operation of the stock solution metering pump can be adjusted according to liquid level data and real-time water quality data, so that the dosing operation is realized.

This product is a sample preparation tube strip used to extract or purify target substances from samples, such as in nucleic acid isolation. It is used in combination with other sample preparation devices, as shown in the "Reference Diagram Showing the Usage State." The numbers 1 through 6 in the "Front View" of this product correspond to the six holes 1 through 6 in the "Top View" of this product. In the nucleic acid isolation process, first, a magnetic stirring ball and magnetic stirring ball diluent are placed in hole 1, a dissolving solution in hole 2, different types of cleaning solutions in holes 3, 4, and 6, and an eluent in hole 5. The following steps are then performed: (1) One or more of this product are placed in a sample preparation tube strip rack, a magnetic stirring bar cover is inserted into hole 1, and the sample to be processed or purified is placed in hole 2. (2) The magnetic stirring bar cover is driven by a drive mechanism and rotates within hole 1, adsorbing the magnetic stirring ball to its outer surface. (3) The magnetic stirring bar cover with the magnetic stirring ball adsorbed to its outer surface is moved into hole 2, where the magnetic stirring ball adsorbs the nucleic acid in the sample. (4) The magnetic stir bar cover that has undergone the process (3) is moved in the order of hole 3, hole 4, and hole 6, and impurities in the sample are washed away. (5) The magnetic stir bar cover that has undergone the process (4) is moved into hole 5, and the nucleic acid is released from the magnetic stir ball under heating conditions. (6) The magnetic stir bar cover that has undergone the process (5) is returned to hole 1, and the nucleic acid remains in hole 5.

The invention provides a method for detecting related substances of sucrose octasulfate salt auxiliary materials, and particularly relates to the field of medicines. An SCX cation exchange chromatography filler and a C18 filler are mixed according to the ratio of (0.8-1.2): (3-5) to serve as a filling agent; the specification of a chromatographic column is CAPCELLPAK CR C18 + SCX 5 [mu] m, 250 * 4.6 mml.D.; 18-22 mM / L ammonium formate and 0.08-0.12% formic acid are used as a mobile phase A, and acetonitrile is used as a mobile phase B; a detector is CAD, the spray temperature is High, the collection frequency half-peak width is 0.1-0.2 min, the column temperature is 28-32 DEG C, the flow rate is 0.8-1.2 ml / min, and the sample injection volume is 4-6 [mu] l; wherein acetonitrile and water in a ratio of (3-5): (5-7) are used as diluents, and gradient elution is carried out; the method provided by the invention can effectively separate and accurately analyze each impurity, has strong specificity and good separation degree, and can effectively control the product quality.

The utility model relates to a dilution device for configuration of benzene series standard substances, which comprises a dilution tank mounted in a frame, a discharge pipe arranged at the bottom of the dilution tank, a detachable tank cover arranged at the top of the dilution tank, feed pipes communicated with the inside of the dilution tank and arranged on two sides of the tank cover respectively, and the top ends of the feed pipes penetrate through the top of the frame. Two positioning seats are fixed to the top of the frame and located on the outer sides of the corresponding feeding pipes respectively, funnels are arranged in the positioning seats, and the bottoms of the funnels are inserted into the corresponding feeding pipes. A certain amount of proportioned benzene series raw materials are poured into the diluting tank through one funnel, a certain amount of proportioned diluent is poured into the diluting tank through the other funnel, the benzene series raw materials and the diluent are guided to the rotating frame through the flow guide pipes to be mixed, and the benzene series raw materials and the diluent are mixed along with rotation of the rotating frame. According to the device, benzene series raw materials and diluent can be fully and rapidly mixed, and the mixed benzene series raw material diluent falls to the bottom in the dilution tank.

Treaters that are configured to remove one or more contaminants from hydrocarbon streams recovered from a polymerization process are located upstream of the monomer and diluent recovery unit.

The invention provides a tire pyrolysis oil fractionation method, and relates to the technical field of chemical separation. Tire pyrolysis oil needs to be modified and upgraded due to the defects of high sulfur content, large viscosity and the like, and an existing modification method has the problems of harsh reaction conditions, high cost and the like. The method comprises the following steps: diluting the tire pyrolysis oil, putting the diluted tire pyrolysis oil into a feeding device, adjusting system pressure and molecular distillation equipment parameters for separation, recovering part of escapes through secondary condensation and cold trap condensation, and evaporating out a diluent by using a rotary evaporator to obtain light and heavy distillate oil. According to the method, efficient separation and nondestructive collection can be achieved, the modification effect and economic value of the pyrolysis oil are improved, and waste tire treatment modes are increased.

The invention relates to the technical field of pesticide production, in particular to a method and a device for continuously preparing octachlorocyclopentene, and the method at least comprises the following steps: by taking dicyclopentadiene and chlorine as raw materials, cracking dicyclopentadiene to obtain cyclopentadiene, gasifying the cyclopentadiene to obtain gasified cyclopentadiene, and separating the gasified cyclopentadiene from the chlorine to obtain the octachlorocyclopentadiene. According to the method, gasified cyclopentadiene reacts with chlorine in a reactor to prepare tetrachlorocyclopentane, tetrachlorocyclopentane is transferred to a chlorination kettle, chlorine continues to be introduced, and octachlorocyclopentene is prepared through staged cooling, the method does not need to add a diluent, operation is easy and convenient, side reactions are few, the yield is high, and meanwhile the continuous process can shorten the reaction time, improve the productivity and facilitate industrialization.

The present invention discloses a rapid hydrogen peroxide test kit and a method of using the same, the rapid hydrogen peroxide test kit comprising a sample diluent and a test strip containing a chromogen for detection and a chromogen for quality control in a dry environment. The sample diluent comprises 100-500 mM ammonium oxalate, 0.3-2.0 mM 8-hydroxyquinoline, 50-500 mM sodium chloride, and 10-100 mM of a first pH adjuster for pH 4.5-7.0.

The invention provides an ultralow-density proppant based on solid waste compounding and a preparation method of the ultralow-density proppant, and belongs to the technical field of proppants. The preparation method comprises the following steps: uniformly mixing the epoxy resin, the diluent, the silane coupling agent and the solid waste powder, and aging to obtain a first mixed system; adding the curing agent and the surfactant into the deionized water, and stirring until the curing agent and the surfactant are completely dissolved to obtain a second mixed system; adding the second mixed system into the first mixed system at a preset temperature in a first stirring state, heating at the preset temperature, treating in a second stirring state until the reaction is finished, filtering, washing with clear water, and drying to obtain the ultralow-density proppant. The solid waste powder is adopted as the filler, the proppant cost is reduced while the strength of the proppant is improved, the liquid and the powder are used as the main raw materials to generate solid particles, and the resin is adopted as the main raw material to achieve the advantages of low density, high strength and the like.

The invention provides a smelting method of high-vanadium molten iron, and belongs to the technical field of metallurgy. The smelting method comprises the following steps: on the basis of blowing and smelting the high-vanadium molten iron in a blast furnace, spraying uniformly mixed powder of pulverized coal and a diluent into the blast furnace, and meanwhile, realizing stable and smooth operation of smelting the high-vanadium molten iron in the blast furnace by combining with the adjustment of an air supply system; the diluent comprises the following components in percentage by weight: 78%-92% of MnO2, 6%-12% of SiO2, 0.20%-0.50% of S, 30%-1.0% of Al2O3, 0.5%-3.0% of CaO and MgO, 0.1%-1.0% of K2O and Na2O, and the balance of impurities; the adjustment of the air supply system comprises the adjustment of air supply temperature, air blast kinetic energy and air blast humidity. On the basis that the operation mode of the blast furnace is not changed, the fluidity of the molten iron is enhanced by spraying the mixed powder of the pulverized coal and the diluent and adjusting the air supply system, accumulation in the furnace is reduced, and stable smelting of the high-vanadium molten iron is achieved.

The present invention provides a liquid silicone rubber composition and its application. The liquid silicone rubber composition mainly comprises silicone rubber, a crosslinking agent, a catalyst, and a diluent, and secondarily comprises a filler. The catalyst is a weak acid, which synergistically enhances the effect with the crosslinking agent and helps to slow the curing speed of the liquid silicone rubber. The liquid silicone rubber composition has good fluidity, is not diluted by water, and has a density of 1.07 to 1.12 g / cm 3 Adjustable, salt-resistant and high-temperature resistant, it can slowly solidify in a high-temperature and high-mineralization environment: after the liquid silicone rubber composition is mixed with formation water with a mineralization of 220,000 mg / L, it is placed in a 150°C oven for 8 to 20 hours, and its strength reaches F grade. It is suitable as a plugging agent for use in profile control and water plugging operations in high-temperature and high-salt rock fracture-cavern oil reservoirs.

The invention provides an active repairing agent for road net-shaped cracks as well as a preparation method and application thereof, belongs to the technical field of road materials, and aims at solving the technical problems that after the road net-shaped cracks are repaired, the strength is slowly improved, and open traffic is limited after the road net-shaped cracks are repaired. The active repairing agent comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by mass: 20-40 parts of an active diluent, 20-30 parts of modified asphalt, 10-30 parts of a toughening agent, 4-8 parts of a silane coupling agent and 100 parts of filler; and the component B is a curing agent solution. The active diluent and the inorganic calcium salt curing agent are subjected to complexation reaction and interwoven to form a spatial net structure for rapid curing, the active repairing agent has the characteristics of high permeability and rapid strength formation, and traffic can be opened after net crack repairing is completed.

The utility model discloses a liquid adding diluter device for clinical examination, which comprises a base and a turntable column positioned at the upper part of the base, the upper part of the turntable column is rotatably connected with a turntable, the turntable is movably connected with a plurality of liquid injection pipes, one side of the base positioned on the turntable column is provided with a groove, and the bottom of the groove is provided with an electric heating plate; a clamping part used for clamping a beaker is arranged on the outer side of the groove, a fixing column with a guide plate fixed to the upper end is arranged on the side, away from the rotary disc column, of the groove, and a lifting plate with one end connected with a stirring motor is arranged above the fixing column; a lifting sliding column in sliding connection with the fixed column and a guide column in sliding connection with the guide plate are sequentially arranged at the end, away from the stirring motor, of the lifting plate, and the output end of the stirring motor is connected with a stirring assembly capable of extending into the beaker. The beaker stirring device is suitable for various beakers with different sizes, the beakers are stably clamped and fixed, the stability of the stirring process is improved, sample liquid in the beakers can be heated by the electric heating disc, and the dilution effect of insoluble reagents or reagents needing to be heated is improved.