11results about How to "Rapid concentration" patented technology

The invention discloses a flowing type full-automatic biological particle quantitative detection processing method and device, which are characterized in that detection signals are collected, processed and analyzed in real time, the concentration of a detected substance in a sample is calculated, and the dilution process is controlled, so that the accuracy and reliability of a detection result are ensured; through automatic concentration adjustment, real-time monitoring, calculation and automatic dilution of the sample concentration are realized, and the sample concentration is ensured to be adjusted to a reasonable range required by detection; the flowing of a sample and a diluent among a sample storage area, a sample dilution area, a diluent storage area, a sample detection area and a subsequent processing module is realized through a sample feeding module, and the high efficiency and continuity of a detection process are ensured through an integrated design; after the concentration of the sample reaches the standard, the sample can be subjected to follow-up treatment, such as sorting and separation, so that fine treatment of the sample is realized; the detection can cover a variety of biological particles, including nanoparticles, cells, extracellular vesicles, bacteria, viruses and the like, and has a wide application range.

The invention provides a quantitative tangential flow filtering system without a stirring pipeline, which comprises a product tank, a bottom outlet of the product tank is connected with a liquid inlet main pipeline through a pipeline, a circulating pump is arranged on the liquid inlet main pipeline, and an outlet end of the liquid inlet main pipeline is connected with a liquid inlet end of a tangential flow filtering membrane bag. A backflow end of the tangential flow filtering membrane bag is connected with a liquid outlet main pipeline, the liquid outlet main pipeline is connected with a liquid inlet end of a tubular container, a liquid outlet end of the tubular container is respectively connected with the liquid inlet main pipeline and a collection end through pipelines, and a permeation end of the tangential flow filtering membrane bag is connected with a liquid discharge pipeline; during use, the tubular container replaces a product tank to serve as a part of functions of a circulation tank, and meanwhile reverse mixing of the circulation tank is brought about; the membrane has the advantages that the flux of the membrane is improved, and concentration and re-filtration can be completed more quickly.

The invention discloses a concentrated solution freezing crystallization machine for salifying preparation of erythromycin oxime, and relates to the technical field of salifying preparation of erythromycin oxime, the concentrated solution freezing crystallization machine comprises a rack, a supporting plate is fixedly connected to the position, close to the edge, of the bottom of the rack, and a guide sliding groove is formed in the lower position of the surface of the supporting plate; and the top of the rack is fixedly connected with a hoist. According to the concentrated solution freezing crystallizer for salifying preparation of erythromycin oxime, a cavity is formed in the position between the temperature adjusting assembly and the temperature slowing assembly, heating water is introduced into the cavity, erythromycin oxime salt is evaporated and concentrated through water bath heating, then hot water is discharged to enable the temperature of a concentrated solution to reach a metastable area, and the interior of the temperature slowing assembly is slowly cooled; the erythromycin oxime crystals are separated out, the electric rotary table drives the magnetic sliding block to rotate, the temperature slowing assembly scrapes off the adhered crystals, and the problems that the heat transfer performance is deteriorated and the yield of the erythromycin oxime is low due to the fact that crystal scales are very easy to crystallize between a cooled solution and a heat transfer surface are solved.

This invention belongs to the field of inorganic catalyst materials and organic pollutant degradation technology, specifically relating to a Cu@ITGs confined microsphere catalytic material based on iron tailings, its preparation method, and its application in degrading organic matter. The method includes the following steps: mixing activated iron tailings powder and meta-high terephthalic acid to obtain a mixed dry powder; obtaining a composite alkali activator; weighing copper nitrate particles, dispersing them in ethanolamine for complexation, and slowly adding them to the composite alkali activator to obtain a mixed solution; adding the mixed dry powder to the mixed solution to synthesize a gel slurry; dripping the obtained gel slurry into polyethylene glycol-800 to form microspheres; and after fully curing and drying the microspheres, gradient calcining under a N2 atmosphere to obtain the confined catalytic material Cu@ITGs. This invention uses bulk industrial solid waste as the main raw material to prepare a multifunctional catalytic material with both high catalytic activity and excellent stability for use in wastewater treatment, realizing "waste-to-waste" treatment and high-value-added resource utilization of solid waste.

The utility model relates to the technical field of pseudovirus concentration devices, and discloses a virus concentration device. The feed inlets are divided into two groups, are symmetrically arranged at the top end of the shell and are communicated with the shell; the filtering mechanism is arranged in the shell; the shaking mechanism is arranged in the shell and is positioned below the filtering mechanism; the top end of the concentration equipment is connected with the shaking mechanism. Under the centrifugal acting force, viruses can be rapidly screened, large solid viruses can be rapidly guided and recycled under the cooperation of the guide pipe, the viruses continue to be screened after being recycled, the screening efficiency is effectively improved, and blocking during equipment screening is effectively avoided.

The invention discloses a cascade hydrogen supply reverse / cross flow hydrogenation reaction device and application thereof in hydrogenation reaction. The cascade hydrogen supply reverse / cross flow hydrogenation reaction device comprises a gas-liquid removal area, an upper reaction area, a lower reaction area and a liquid degassing area which are sequentially communicated from top to bottom. The upper reaction zone comprises an inner cylinder I and an annular space I located outside the inner cylinder I, the top end of the inner cylinder I is communicated with a hydrogen-containing fluid I, the bottom end is closed, a through hole I is formed in the cylinder wall and used for communicating the inner cylinder I and the annular space I, the bottom end of the annular space I is communicated with a hydrogen-containing fluid II, and the top end is closed; the lower reaction area comprises an inner cylinder II and an annular space II located on the outer side of the inner cylinder II, the top end of the annular space II is communicated with a hydrogen-containing fluid II, the bottom end of the annular space II is closed, the bottom end of the inner cylinder II is communicated with a hydrogen-containing fluid III, the top end of the inner cylinder II is closed, and a through hole II is formed in the cylinder wall and used for communicating the inner cylinder II and the annular space II; the inner cylinder I and the annular space II are filled with a monolithic catalyst; and the annular space I and the inner cylinder II are filled with a non-monolithic catalyst.

The utility model relates to the technical field of oxygen detection, and discloses a trace oxygen purity detection device which comprises an outer tube and a detection inner tube, and a platinum wire temperature sensor is wound outside the detection inner tube; the sealing structure comprises end cylinders and ribs, the two ends of the outer pipe are each provided with one end cylinder, the two end cylinders are fixedly provided with the multiple ribs, the ribs are attached to the exterior of the outer pipe, gas is fed into a cavity of the detection inner pipe through the gas feeding pipe, and the gas is mainly hydrogen generated by electrolyzing water and gas to be detected; hydrogen and oxygen react to release heat under the catalytic action of a catalyst, the platinum wire temperature sensor can absorb heat, bridge unbalance is triggered through changes of the platinum wire temperature sensor, an output voltage signal and the oxygen concentration are in a linear relation, and then the oxygen concentration is measured. The trace oxygen detection device is improved in the aspects of precision, speed and stability in a breakthrough manner, and is particularly suitable for the advanced manufacturing field with strict requirements on oxygen content control.

The invention relates to the technical field of energy storage and flow batteries, in particular to an electrolyte chromium dichloride concentration testing system and method and application. The system comprises an inert atmosphere device and a testing device, and the testing device is arranged in the inert atmosphere device; a potential monitor and a titration sub-device are arranged in the testing device. According to the method, the ferric chloride solution with a certain concentration is used as the oxidizing agent, the oxidation-reduction potentiometric titration test is carried out in the inert gas atmosphere, the oxidizing agent is not prone to deterioration, economical and easy to obtain and does not react with any other substances / ions except Cr < 2 + > in the electrolyte, the test accuracy is guaranteed, and the test time is shortened. The method for judging the reaction endpoint by potential mutation avoids the interference of ion color judgment, so that the accurate concentration of Cr < 2 + > in the electrolyte of the iron-chromium flow battery can be quickly obtained.

The present application relates to a kind of plant cultivation system and method comprising root microorganism, comprising: collection module, first detection unit, second detection unit, sterilization control unit and regulation unit.The harmful organism includes the first type of harmful organism with primary pathogenicity to the plant planted in cultivation system, secondary pathogenicity of the second type of harmful organism and tertiary pathogenicity of the third type of harmful organism, the regulation unit is configured as: when the detected harmful organism is the first type of harmful organism, control the sterilization control unit disinfects the cultivation system, wherein, when the category and concentration of first type of harmful organism exceed the first threshold, control the sterilization control unit with first disinfection mode disinfects the cultivation system;When the category and concentration of first type of harmful organism are lower than the first threshold, control the sterilization control unit with second disinfection mode disinfects the cultivation system.

The invention discloses a polymetallic ore strong magnetic separation-gravity separation combined wolframite recovery device which comprises a weak magnetic separator (100), a strong magnetic separator (200), a buffer tank I (300), a buffer tank II (500) and a centrifugal separator (600), magnetite concentrate, wolframite coarse ore and tailings (discarded tailings) can be separated through single magnetic separation, the handling capacity of strong magnetic separation is reduced, the production cost is saved, and the production efficiency is improved. The rough wolframite ore obtained through roughing is subjected to concentration and multiple times of centrifugal operation to obtain wolframite concentrate, and the grade and the recovery rate recovered through the mode are both improved.

The invention belongs to the technical field of wolframite beneficiation, and particularly relates to a method for recovering wolframite from muddy tungsten polymetallic ore through beneficiation. The magnetite is removed and the tailings are thrown through one-time rough concentration, the grade of the magnetite is high, the content of wolframite and the magnetite in the tailings can be basically neglected, the wolframite is centrifugally separated out through a centrifugal separator after concentration is matched, the grade of the wolframite is high, the recovery rate is considerable, and targeted improvement is conducted on a concentration tank. And the bearing belt for downward directional conveying is arranged in the concentration tank and is used for accelerating sedimentation and reducing the viscous effect, so that the concentration effect is greatly enhanced.