1441 results about "Stock solution" patented technology

The invention belongs to the technical field of filtering equipment, and particularly relates to a candle filter which comprises a filtering tank, filter element pipes are arranged in the filtering tank and connected with a liquid collecting pipe, a scraping plate is arranged on the inner wall of the filtering tank in a sliding mode, a plurality of cake scraping mechanisms are arranged on the scraping plate, each cake scraping mechanism is provided with a plurality of scraping plate holes, and the scraping plate holes correspond to the filter element pipes in a one-to-one mode. The diameter of the scraper hole is larger than the outer diameter of the filter element pipe, the filter element pipe penetrates through the scraper hole, a scraper assembly is arranged in the scraper hole, a first liquid inlet is formed in the bottom of the filtering tank, a second liquid inlet is formed in the upper end cover, and the first liquid inlet is connected with a stock solution tank and a waste liquid tank through a pipeline provided with a first electric control valve; and the second liquid inlet is connected with the stock solution tank and the waste liquid tank through a pipeline provided with a second control valve. According to the candle filter provided by the invention, the scraper assembly can scrape off the outer wall of the filter cake layer in the filtering process, so that the filter cake layer is always in the optimal filtering effect range, the filtering effect is ensured, and meanwhile, the filtering efficiency is also improved.

The invention relates to the technical field of high-level liquid waste evaporation in nucleation post-treatment and nucleation glass curing, in particular to a liquid waste evaporation end point automatic judgment method and a liquid waste evaporation control method and device. The method comprises the following steps: acquiring waste liquid parameters of an evaporation system before evaporation and target parameters of waste liquid in a kettle type evaporator after evaporation; determining the target liquid level in the stock solution tank after evaporation according to the mass of the standard substance before evaporation calculated according to the waste liquid parameters, the target parameters of the waste liquid and the mass conservation of the standard substance before and after evaporation; according to the method, the mass of the standard substance of the waste liquid in the evaporation process is analyzed, and the evaporation end point is determined through mass conservation of the standard substance before and after evaporation, so that the evaporation end point can be automatically determined by analyzing the parameters of the waste liquid in the evaporation system, and the efficiency of the evaporation system is improved. Meanwhile, the evaporation end point is determined based on mass analysis and calculation of the target substance, so that the determination of the evaporation end point is more accurate.

The invention discloses a tree shrew hypertension model making method. The method comprises the following steps: (1) solvent preparation: dissolving palmitic acid in absolute ethyl alcohol to prepare 24mg / ml storage liquid for later use; and (2) diluting the stock solution in the step (1) with 10% BSA (Bovine Serum Albumin) into a solution with the concentration of 6mg / ml, and injecting the solution into the abdominal cavity of the tree shrew according to the dosage of 20mg / kg for 21d to finish modeling. The model preparation method is simple, and the model forming rate is high.

The invention relates to an automatic temperature control type concentration device for an industrial biological enzyme preparation, in particular to the technical field of enzyme preparation purification devices. The technical problem that a heating plate cannot conduct targeted heating on the position where enzyme-containing liquid is located is solved. Comprising a support, a heating shell is slidably connected to the interior of the support, a liquid storage tank is fixedly connected to the interior of the heating shell, a hot air pump is installed on the support, the hot air pump is fixedly connected with a first air conveying pipe, the first air conveying pipe is fixedly connected and communicated with the heating shell, and a sealing ring is slidably connected to the interior of the heating shell in a sealed mode. The sealing ring is connected with the outer side of the liquid storage tank in a sealed and sliding mode. The position of the sealing ring is changed along with the change of the liquid level of the stock solution in the liquid storage tank, so that the volume of hot air stored between the heating shell and the liquid storage tank is changed, the heating position of the liquid storage tank is further changed, the volume of the stock solution in the liquid storage tank is heated, and waste of the hot air is avoided.

The invention relates to the field of fiber production and quality prediction, in particular to an intelligent production scheduling and quality prediction method and system for lyocell fibers, and the method comprises the following steps: generating a batching rule table of the lyocell fibers by using a central batching method according to the polymerization degree requirement and batching principle of the lyocell fibers, generating an inventory table in combination with an inventory list of the pulp raw materials; a production plan is made based on the inventory table, so that a stock solution workshop worker prepares the Lyocell fiber pulp porridge according to the production plan; and constructing a relation model of the raw material attributes, the process parameters and the quality of the pulp porridge by using the two-stage quality prediction model to realize quality prediction of the Lyocell fiber pulp porridge. According to the method, intelligent production scheduling of the lyocell fibers can be realized based on a central batching method and inventory data, whole-course tracking from raw materials to swelling products is realized, then the quality prediction of the lyocell fiber pulp porridge is realized by using the two-stage quality prediction model, and the quality prediction effect of the lyocell pulp porridge is improved.

The invention relates to the technical field of mineral oral liquid preparation, and mainly relates to a preparation process of mineral oral liquid, which comprises the following steps: S1, preparing raw materials; s2, the raw materials are poured into a discharging unit in the preparation tank to be evenly discharged; s3, stirring the purified water by using a stirring unit in the preparation tank; s4, carrying out primary filtration on the dissolved stock solution through a 15 [mu] m titanium rod; s5, an acidity regulator is added into the stock solution, and the pH value of the stock solution obtained after primary filtration is made to range from 3.0 to 6.0; s6, carrying out secondary filtration on the stock solution of which the pH value is adjusted; s7, product filling, opening locking, sterilization for 50 minutes at 110 DEG C, lamp inspection and packaging are conducted, a traditional preparation technology is improved, a discharging unit is designed in a preparation tank, raw material powder and purified water are evenly discharged to the liquid level before being mixed, the situation that too much powder is discharged at a time, consequently, the powder floats on the liquid level, and caking is formed is avoided, and the product quality is improved. The solution efficiency between raw materials and purified water can be improved.

The invention relates to a control method, a control device and clothes processing equipment, the clothes processing equipment comprises a foam generating part and a clothes processing cavity, the foam generating part is communicated with the clothes processing cavity, and the foam generating part is used for generating cleaning foam and putting the cleaning foam into the clothes processing cavity; the control method comprises the steps that it is determined that the operation of injecting the dissolving medium and the operation of injecting the stock solution are finished, and the foam generating component is controlled to generate and put cleaning foam into the clothes processing cavity. Therefore, the process of injecting the dissolving medium and the stock solution can be separated from the process of generating the foam based on the dissolving medium and the stock solution in time, so that the injection amount of the dissolving medium and the injection amount of the stock solution can be quantitatively controlled, and the use amount of the cleaning foam can be conveniently controlled; therefore, the amount of cleaning foam required for the load can be generated, the load can be cleaned conveniently, and waste is avoided.

The utility model discloses a quantitative feeding mechanism of an ammonium molybdate solution aging tank, which comprises an aging tank body, a top cover is arranged at the top end of the aging tank body, an adding sleeve is arranged on the top cover, and an adding component is arranged in the adding sleeve; the adding assembly is composed of a pushing and injecting mixer, a stock solution inlet pipe and a shunting discharger; the quantitative feeding mechanism of the ammonium molybdate solution aging tank relates to the technical field of aging feeding mechanisms, and is characterized in that quantitative dosing is carried out through a quantitative plunger type dosing device when the aging tank is fed, and an ammonium molybdate solution entering from a stock solution inlet pipe is mixed with a medicament through an adding assembly; therefore, an additive carried by the ammonium molybdate solution is shunted from the shunt and uniformly injected into the aging tank, so that the aging uniformity is improved, and the aging effect and efficiency are improved.

The utility model discloses a vertical evaporation system and a vertical heat pump vacuum evaporator. The system comprises a stock solution evaporator, an evaporation heat exchanger and a condensation heat exchanger, wherein the evaporation heat exchanger is arranged on the outer side of the lower part of the stock solution evaporator; a discharge port is formed in the bottom of the stock solution evaporator, and the rotating shaft is driven by the driving motor to rotate and drive the spiral blade at the discharge port to rotate; a flat heat exchange surface is arranged at the lower part of the stock solution evaporator and is used for exchanging heat with the evaporation heat exchanger; a scraping plate capable of scraping the heat exchange surface is tightly attached to the heat exchange surface; the condensation heat exchanger is arranged in the stock solution evaporator and located on the upper portion of the stock solution evaporator. By adopting the scheme, not only can the heat exchange surface of the stock solution evaporator be scraped and cleaned through the scraping plate, but also the problems of accumulation and discharge of concentrates are synchronously solved through the spiral blade at the discharge outlet at the bottom, and dirt deposition or salt hardening caused by accumulation of the concentrates at the bottom of the stock solution evaporator is avoided.

The invention relates to the technical field of waste liquid treatment, and discloses a continuous salt separation type high-concentration brine heat exchange process which comprises the following steps: inputting high-concentration brine into a first evaporation tank through a stock solution pipeline, and concentrating and evaporating the high-concentration brine in the first evaporation tank; when the first monitoring assembly monitors that the monitoring index value of the feed liquid in the first evaporation tank reaches a first threshold value, the feed liquid capable of separating salt is input into the relay barrel; the liquid outlet pipeline is used for inputting salt-separable material liquid in the relay barrel into the second evaporation tank; the salt separation pipeline is used for feeding salt separation feed liquid subjected to heat exchange of the shell-and-tube heat exchanger into the centrifugal assembly for salt separation; intermittent evaporation and concentration and continuous salt separation are synchronously carried out, so that the problem that high-concentration brine cannot be concentrated to a salt separation state during concentration and evaporation so as to cause insufficient treatment of the high-concentration brine can be effectively avoided, and the influence of separated salt and scale on a tank body when the evaporation concentration reaches the salt separation state can be avoided; the service life of the tank body is short; and subsequent evaporation and concentration are influenced.

The invention provides a stock solution sub-packaging device and a sub-packaging method.The stock solution sub-packaging device comprises a sub-packaging support, a plurality of trays symmetrically arranged on the two sides of the sub-packaging support, a main pipeline arranged on the sub-packaging support and weighing sensors arranged on the two sides of the bottom of the sub-packaging support; branch pipelines communicated with the liquid separation bag are symmetrically arranged on the two sides of the main pipeline, the main pipeline is communicated with the stock solution storage device, bubble sensors are arranged at the two ends of the main pipeline and used for detecting bubbles in the main pipeline, and stock solution to be subpackaged in the stock solution storage device sequentially passes through the main pipeline and the branch pipelines and then is contained in the liquid separation bag. The weighing sensors are used for obtaining stress changes of the bottoms of the two sides of the subpackaging support, the position of the tray relative to the subpackaging support is fixed, the position of the liquid separation bag relative to the tray is fixed, and the amount of the stock solution subpackaged into the liquid separation bag is calculated through the stress changes; the stock solution split charging device provided by the invention is high in efficiency and good in split charging precision.

The invention discloses an organic extraction device for preparing an organic framework material, and relates to the technical field of extraction devices. Comprising an extraction tank, the extraction tank is provided with an upper feeding port, a lower feeding port, an upper discharging port and a lower discharging port, and fixing rings distributed in a linear array mode are installed in the extraction tank; the fixed shell is rotationally connected to the extraction tank; the plurality of first telescopic shells and the plurality of second telescopic shells are embedded in the fixed shell; the first turntable is in limited sliding connection with the fixed shell; and the second turntable is connected to the fixed shell in a limiting and sliding manner. By detecting the concentration of an organic component in a stock solution, when the concentration of the organic component is increased, the distance between the first turntable and the second turntable and the fixed ring is reduced, so that the flow area of liquid in the extraction tank is reduced, a higher shearing force is generated when the solution flows, the dispersion degree of liquid drops of the solution is increased, and the extraction efficiency is improved. The mixing speed of the stock solution and the extractant is accelerated, and the mass transfer efficiency is improved.

A pesticide residue extraction solution adapted for a rapid extraction method of stock solution of agricultural products and a pesticide residue detection method in agricultural products. The pesticide residue extraction solution includes acidic solution and acetone solution. The rapid extraction method includes homogenizing the agricultural product sample, to obtain a homogenized sample; mixing the pesticide residue extraction solution with the homogenized sample to form a sample solution; and subsequently using a column filled with mixed powder to filter out the water and impurities from the sample solution, thereby obtaining a stock solution of the agricultural product. The method for detecting agricultural product pesticide residues includes using the rapid extraction method to obtain the stock solution of agricultural product, and to directly input the stock solution of the agricultural product into a liquid chromatography tandem mass spectrometer or a gas chromatography tandem mass spectrometer for pesticide residue detection.

The utility model discloses a sea cucumber enzymolysis device, which relates to the technical field of sea cucumber processing, and comprises a tank body, a mixing mechanism is arranged at the top of the tank body, a filtering mechanism is arranged at the bottom of the tank body, the mixing mechanism comprises two electric telescopic rods and a material barrel, the two electric telescopic rods are arranged outside the tank body, and the material barrel is arranged in the tank body. The material barrel is movably installed in the tank body, top blocks are installed at the top ends of the electric telescopic rods, rotating shafts are installed between the inner sides of the two top blocks and the positions, close to the top ends, of the periphery of the material barrel, a motor is installed at the top of the material barrel, and a stirring rod is installed at the position, located in the material barrel, of the bottom end of an output shaft of the motor. A first screw groove is formed in the inner wall, close to the bottom end, of the material barrel; the sea cucumber raw materials can be conveniently added and taken out, the sea cucumber raw materials are separated from the stock solution, the utilization rate of the sea cucumber raw materials is increased, meanwhile, the stock solution can be further filtered, and impurities in the stock solution are reduced.

The invention relates to the technical field of medicine analysis and detection, and particularly discloses a method for detecting the content of protein in a 3D-MLA adjuvant, which comprises the following steps: (1) preparing a test solution: firstly dissolving the 3D-MLA adjuvant by using a hydrochloric acid solution, performing 300-600W ultrasonic treatment for 2-5min, centrifuging 10000-13000g for 4-7min, and taking supernate; adding a compound enzyme into the supernate for enzymolysis; then adding concentrated hydrochloric acid, uniformly mixing, hydrolyzing for 20 + / -2 hours in a nitrogen atmosphere at 105-115 DEG C, blow-drying, and dissolving with a hydrochloric acid solution to obtain a test sample stock solution; adding a derivatization reagent into the test sample stock solution, and carrying out derivatization treatment, extraction and dilution to obtain a test sample solution; and (2) high performance liquid chromatography determination. According to the detection method provided by the invention, the residual quantity of the host cell protein in the 3D-MLA can be rapidly and accurately determined, and the quality control of the 3D-MLA is realized.

The embodiment of the invention discloses an intelligent linkage automatic control method for fly ash stabilization, and relates to the technical field of solid waste treatment. The method comprises the following steps: step S101, acquiring the content of heavy metals in fly ash detected in real time; step S102, based on the detection data, automatically calculating the ratio of the chelating agent stock solution to the process water / concentrated water through a preset algorithm; s103, controlling a fly ash weighing system, a solution weighing system and a mixing mill system according to the ratio of the chelating agent stock solution to the process water / concentrated water; wherein the step S102 comprises the following steps: determining a dynamic water-cement ratio; solution concentration is automatically switched according to a water source; and calculating the amount of the chelating agent stock solution and the water amount according to mass conservation. According to the embodiment of the invention, through multi-element dynamic proportioning, full-process intelligent linkage, equipment fault self-healing and unqualified product closed-loop treatment, the problems of low stabilization efficiency, agent waste and insufficient reliability in the prior art can be solved.

The utility model provides a cutting fluid supply system of a numerical control machining center. The cutting fluid supply system comprises a cutting fluid supplementing system, a precipitation water tank, a machine tool fluid supply system, a cooling system, a filtering system, a backflushing system and a control system. And the cutting fluid supplementing system conveys the stock solution in the raw material barrel to the stock solution box, and supplements the stock solution to the precipitation water tank through the proportional liquid preparation pump and the liquid supplementing pipeline. And the cooling system cools the cutting fluid in the precipitation water tank through a water cooler and a heat exchanger. And the filtering system comprises a back-flushing scraper chip cleaner and a cloth bag filter and is used for filtering and purifying the cutting fluid. And the backflushing system is used for cleaning a backflushing filtering roller through a backflushing pump. And the machine tool liquid supply system conveys the cooled and filtered cutting liquid to a machine tool liquid supply pipeline. According to the utility model, all the systems are matched and linked, so that the full-automatic operation of conveying, distributing, replacing, filtering and recycling cutting fluid and cleaning the filter screen is realized, the labor intensity is reduced, the labor cost is saved, and the cutting fluid utilization rate and the machining efficiency of a machine tool are improved.

The invention belongs to the field of analysis and detection, and particularly relates to a method for detecting glycosylglycerol in dairy products. The method is realized by the following steps: firstly, pre-treating a sample; preparing a standard stock solution; and an ion chromatography method is adopted for detection. According to the detection method provided by the invention, the glycosylglycerol in the dairy product can be effectively detected, the matrix effect is greatly reduced, a complicated pretreatment process is not needed, the specificity is high, the detection time is greatly reduced, the repeatability is good, and a technical support and a quality control guarantee are provided for the application of monitoring the glycosylglycerol in the dairy product; according to the detection method provided by the invention, the adsorption of the target component on the ion exchange resin can be reduced, the retention time is shortened, the peak trailing is reduced, and the detection sensitivity is improved.

The utility model provides an impurity filtering device for water reducing agent preparation, and relates to the technical field of water reducing agent preparation, the impurity filtering device comprises a filtering tank, a liquid conveying pipe, a liquid outlet pipe, a collecting hopper and a discharging pipe, a filter screen cylinder is fixed in the filtering tank, and a cleaning mechanism is arranged in the filtering tank; air is conveyed to the bottom end of the feeding hopper through the booster pump so as to blow flocculating agent powder into the material conveying pipe, and the flocculating agent powder is conveyed into the filtering tank through the material conveying pipe so as to condense impurities in a water reducing agent together. A water reducing agent stock solution filtered by the filter screen cylinder enters the liquid outlet pipe to be output outwards, the motor can drive the scraping plate to rotate on the inner side of the filter screen cylinder through the rotating shaft, the scraping plate and the filter screen cylinder are attached together, and the scraping plate can scrape impurities on the inner side of the filter screen cylinder, so that the impurities automatically fall into the collecting hopper and flow to the outside through the discharging pipe. The cleaning device is used for cleaning the inner side of the filter screen cylinder.

The invention discloses a wafer cleaning device based on ultrasonic cleaning, and relates to the technical field of wafer cleaning devices. Comprising a cleaning machine outer tank body, a wafer cleaning glass tank, an ultrasonic cleaning tank, an ultrasonic device, a bottom plate, a housing, a cleaning tank rail, a flow dividing water supply device and a bubble removing uniform vibration device, ultrapure water serves as a medium, ultrasonic vibration is effectively conducted to the wafer cleaning glass tank, a strong acid solution in the tank is driven to uniformly vibrate, and efficient cleaning of wafers is achieved. High turbulence pulsation and local shearing stress are formed at the junction of oblique water replenishing and the stock solution, large bubbles are sheared into small bubbles, bubble gathering is prevented, and the liquid purity and the ultrasonic cleaning efficiency are improved. Under the centrifugal separation action of the rotational flow connecting base and the annular rotational flow piece, bubbles in water flow are concentrated in the center position, ultrapure water on the outer side is rapidly discharged, the bubbles are efficiently absorbed after making contact with the hydrophobic porous membrane, and the bubble removing effect is remarkably improved.

The invention relates to the technical field of drug analysis, and particularly discloses an analysis method for measuring the content of a dihydroergoline mesylate bulk drug, which comprises the following steps: step S1, adding the dihydroergoline mesylate bulk drug into anhydrous acetonitrile to obtain a stock solution to be measured, precisely measuring 1mL of the stock solution, adding a cosolvent, uniformly shaking, and fixing the volume to obtain a solution to be measured; s2, taking a dihydroergoline mesylate raw material medicine, adding the dihydroergoline mesylate raw material medicine into anhydrous acetonitrile to obtain a control stock solution, precisely measuring 1mL of the control stock solution, adding a cosolvent, uniformly shaking, and fixing the volume to obtain a control solution; s3, measuring the content of the dihydroergoline mesylate raw material medicine by using a high performance liquid chromatography; according to the present invention, the cosolvent contains the 1-butyl-3-methylimidazole tosilate, the mobile phase of the high performance liquid chromatography contains the elution reinforcing agent, and through the reasonable ratio of the components, the solubility of the dihydroergoline mesylate can be improved, and the accuracy of the high performance liquid chromatography analysis can be improved.

The present invention discloses a rectification system for chemical industry production processing, and relates to the technical field of rectification towers, the rectification system comprises a housing, the side portion of the housing is communicated with a feed pipe, the rectification system further comprises: a filter, the filter is installed on the ground, and the input end is communicated with the bottom of the housing; the reboiling assembly is installed on the ground through a support, the input end of the reboiling assembly is communicated with the output end of the filter, and the output end of the reboiling assembly is communicated with the bottom of the shell; the input end of the condensation backflow assembly is communicated with the top of the shell. By arranging the unblocking mechanism, when the driving assembly works, the rotating rod rotates to drive the mounting strip to rotate and the ventilation component to work, steam is sucked from the lower portion of the tower plate and finally is horizontally discharged through the multiple air outlet pipes, circulation of the steam is accelerated, meanwhile, bubbles horizontally discharged through the air outlet pipes can impact bubbles discharged through the through holes, and the effect of blocking is improved. The movement track of the bubbles discharged from the through holes is changed, so that the retention time of the bubbles in the stock solution can be prolonged.

The invention relates to the technical field of chemical production, in particular to a hydrogen peroxide working solution purifying and washing process. Comprising the following steps: S1, constructing a hydrogen peroxide working solution purifying and washing system; s2, injecting the working solution into a stock solution kettle in a hydrogen peroxide working solution purifying and washing system for reaction, and then carrying out solid-liquid separation; s3, performing dissolution treatment on a product obtained through solid-liquid separation; s4, after the dissolving treatment is completed, washing with water, performing secondary separation when precipitates appear in the liquid, and temporarily storing the obtained separation liquid; s5, purifying the carclazyte bed in the washing system by using the hydrogen peroxide working solution to separate residual substances, recombining effective component substances, and finally regenerating and temporarily storing a finished product; according to the invention, the production speed of octahydro-anthraquinone in the working solution is reduced, the conversion or extraction process of octahydro-anthraquinone is improved, the purpose of reducing by-product components in the working solution to be controllable is realized, the reaction activity of the working solution is improved, the production consumption is reduced, and long-period safe and stable operation of the device is realized.

The utility model relates to the technical field of medical rectifiers, in particular to a medical intermediate rectifier which comprises a rectifying barrel, a supporting frame is arranged at the bottom of the rectifying barrel, a filtering box is fixed in the supporting frame, a liquid outlet pipe is connected to the bottom of the rectifying barrel, and a liquid outlet pipe is connected to the bottom of the rectifying barrel. The bottom end of the liquid outlet pipe extends into the filter box body, a filter screen plate is mounted in the filter box body, a collecting net bag is embedded in the right end of the filter screen plate, a fixed cross rod is arranged on the inner wall of the filter box body and close to the top, and a screw rod is rotationally connected into the fixed cross rod. According to the waste residue separation device disclosed by the utility model, in the discharging process of a stock solution, waste residues can be separated, and a worker does not need to carry out independent separation work subsequently, so that the waste residue separation device is relatively convenient to use.

The invention provides a combined beneficiation method for laterite-nickel ore, which comprises the following steps: separating chromite in the laterite-nickel ore through a combined process of one-stage cyclone separation, spiral chute, multi-stage table classification, multiple low-intensity magnetic separation and multiple spiral classification to obtain first chromium concentrate, chromium middling, low-intensity magnetic separation middling and mixed light mineral aggregate; the chromium in the limonite and the chromite subjected to leakage treatment in the mixed light mineral aggregate, the low-intensity magnetic separation middling and the high-intensity magnetic separation magnetic substance is further enriched and separated by combining a combined process of subsequent multiple ball milling, two-stage rotational flow, low-intensity magnetic separation and high-intensity magnetic separation, so that more second chromium concentrate is screened out, the content of the chromium in the subsequent high-pressure leaching stock solution is reduced, and the yield of the high-pressure leaching stock solution is improved. The comprehensive utilization of the chromium element is realized.

The invention discloses a clindamycin phosphate processing hydrolysis device and method, and particularly relates to the technical field of injection preparation, the clindamycin phosphate processing hydrolysis device comprises a supporting frame, a hydrolysis mixing assembly is arranged on the supporting frame, the hydrolysis mixing assembly comprises a sliding seat arranged on the supporting frame, the sliding seat is in sliding connection with the supporting frame, and a hydrolysis cylinder is arranged at the bottom of the sliding seat. Clindamycin phosphate powder is prevented from being stacked together due to friction force, the amplitude plate and the heating plate can generate high-frequency amplitude, raw liquid clindamycin phosphate powder molecules can be fully mixed together easily, meanwhile, the temperature of the raw liquid clindamycin phosphate powder during evolutionary hydrolysis can be controlled through the heating plate, and therefore the raw liquid clindamycin phosphate powder can be obtained. Compressed airflow is conveyed into the aeration pipe, is aerated in the hydrolysis cylinder through the aeration pipe, and is stirred by matching with the rotation of the connecting disc, the filter screen plate, the first stirring blade and the second stirring blade, so that the caking of a stock solution and lindamycin phosphate powder can be effectively avoided, and the hydrolysis quality and effect are ensured.

The utility model discloses an automatic microorganism sample pretreatment device, which relates to the field of pretreatment of legionella pneumophila, and comprises an oscillation module, a stock solution module, a heat treatment module, an acid treatment module, a liquid absorption module, a waste liquid recovery module and a sample inoculation module. Different samples are oscillated and eluted through a test tube oscillator in the oscillation module, the samples in the test tube oscillator are sucked through the liquid suction module, and the same sample is moved into the heat treatment module, the acid treatment module and the stock solution module to be treated; the treated sample is transferred to the sample inoculation module through the liquid suction module for sample inoculation, and waste liquid, waste test tubes and waste liquid suction tubes generated in the period are recycled through the waste liquid recycling module. According to the device, the problems of influence on subsequent sample culture and reduction of the probability of positive results due to confusion operation in busy work are effectively avoided, and the overall high efficiency of the device is improved.

The invention relates to the technical field of biological pharmacy, in particular to a quantitative uniform mixing system. The quantitative uniform mixing system comprises a stock solution container, a liquid conveying pipeline, a conveying pump, a uniform mixing container, a stirring device, a weighing device and a control device; the conveying pump, the stirring device and the weighing device are electrically connected with the control device; an inlet of the liquid conveying pipeline is connected with the stock solution container, an outlet of the liquid conveying pipeline is connected with the uniform mixing container, and the conveying pump is arranged on the liquid conveying pipeline; stirring blades of the stirring device are arranged in the blending container, and the weighing device is arranged at the bottom of the blending container to measure the weight of the mixed liquid medicine in real time. Therefore, manual operation during liquid preparation can be reduced, meanwhile, the liquid preparation efficiency is improved, and the liquid preparation accuracy is also ensured.

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.

The invention provides a method for measuring the content of a sizing agent in fibers, and relates to the technical field of fibers, and the method comprises the following steps: obtaining a TG curve of a sizing agent stock solution; calculating the ash content W in the sizing agent stock solution according to the TG curve of the sizing agent stock solution; obtaining a TG curve of the fiber; calculating the weightlessness weight G3 of the fiber according to the TG curve of the fiber; wherein the fibers are the fibers subjected to sizing; and calculating the content of the sizing agent in the fiber according to the ash content W in the sizing agent stock solution and the weightlessness weight G3 of the fiber. According to the method, the ash content W and the weightlessness weight G3 of the fiber can be obtained through the TG curve, so that the sizing agent content in the fiber is calculated; therefore, errors caused by balance fluctuation, temperature control accuracy and the like can be avoided, and the accuracy of a sizing agent content measurement result is ensured.