23results about How to "Reduce separation efficiency" patented technology

The invention provides a preparation method and application of boron isotope separation resin microspheres. The preparation method comprises the following steps: (1) adding dimethyl sulfoxide into polystyrene-divinylbenzene resin microspheres to swell for 3 hours, adding concentrated sulfuric acid to treat until the sulfonation rate is 0.3-0.4 meq / g, washing with water, treating with an ammonium chloride aqueous solution, washing with water, drying in vacuum, atomizing and spraying a ferric chloride-ferrous chloride aqueous solution, evaporating in vacuum to remove part of water, and introducing ammonia-containing nitrogen flow to treat to obtain polystyrene-divinylbenzene resin microspheres; and washing with water, grinding the surface, treating with a sodium hydroxide aqueous solution and washing with water. The boron isotope separation resin microspheres are suitable for chromatographic separation of 10B and 11B in a boric acid-sodium hydroxide aqueous solution with the pH of 6-7.5, a desorption solution is pure water, the feeding rate is 0.3-0.6 m / h, and a boric acid-containing aqueous solution enriched with 10B can be obtained; the service life of the chromatographic column is more than 6 months, the adsorption separation performance is reduced by not more than 20%, and the chromatographic column has a certain application prospect.

The invention discloses a purification treatment system and method for electric wire and cable combustion waste gas in the technical field of cable combustion tests. The purification treatment system comprises a gas washing module, a purification module and an adsorption box which are sequentially arranged in the waste gas flowing direction. The gas washing module comprises a spraying box, a rotational flow tower and a water tank, the spraying box is mounted above the rotational flow tower, a gas phase outlet in the top of the rotational flow tower is communicated with the bottom of the spraying box, the water tank is mounted below the rotational flow tower, and the top end of the water tank is communicated with a liquid phase outlet in the bottom of the rotational flow tower; the purification module comprises a washing box, a communicating vertical pipe and a treatment box, the treatment box is installed under the washing box, and the top of the treatment box communicates with the bottom of the washing box through the communicating vertical pipe; a gas inlet of the adsorption box is communicated with a gas outlet in the bottom of the treatment box. According to the invention, complete purification of waste gas generated by wire and cable combustion is realized, the treatment efficiency of the waste gas generated by wire and cable combustion can be improved, and the operation and maintenance cost can be reduced.

The invention relates to the field of oilfield development, in particular to an underground gas anchor with self-adaptive capacity, which comprises an outer pipe used for introducing a gas-liquid mixed medium and comprising a gas anchor liquid inlet used for providing a channel for the gas-liquid mixed medium to enter the outer pipe; the gas-liquid separation mechanism is used for separating gas and liquid of the gas-liquid mixed medium; comprising a spiral separation assembly for separating gas and liquid by changing the flowing direction of a gas-liquid mixed medium and a self-adaptive settling separation assembly which is arranged below the spiral separation assembly and is used for determining the gravity settling separation degree of the gas-liquid mixed medium subjected to spiral separation according to the weight of the gas-liquid mixed medium introduced by an outer pipe ; and the inner pipe is used for discharging the liquid after the gas-liquid separation mechanism separates the gas-liquid mixed medium. The liquid separation capacity of the gas anchor is improved, and the working efficiency of the gas anchor is improved.

The invention relates to application of iron-doped carbon nitride rich in nitrogen vacancies, in particular to application of the iron-doped carbon nitride rich in the nitrogen vacancies in degradation of active pharmaceutical compounds based on a degradation system of UV-LED / NaClO and / or UV-LED / NH2Cl. The removal rates of the UV-LED / NaClO / Fe-g-C3N4-Nv degradation system and the UV-LED / NH2Cl / Fe-g-C3N4-Nv degradation system on carbamazepine are as high as 98.3% and 67.2% respectively, the oxidation capacity of g-C3N4 is enhanced through iron doping, a new intermediate energy level is formed through introduction of nitrogen vacancy, the effect of an electron capturer is achieved, a new electron transmission channel is formed under the combined action of iron doping and nitrogen vacancy, and the degradation efficiency of carbamazepine is improved. The migration rate of electrons and the separation efficiency of photon-generated carriers are obviously improved; meanwhile, the Fe-g-C3N4-Nv achieves efficient activation of NaClO and NH2Cl through O2.-and hvb + under UV-LED irradiation, the yield of HO., RCS and RNS in a degradation system is increased, the adaptability to water quality fluctuation is high, and stable degradation of pharmaceutical active compounds can be achieved.

The present invention discloses a titanium-based perovskite oxide heterojunction catalytic material and its preparation method and application, which belongs to the field of photocatalysts. The preparation method of the present invention comprises dissolving magnesium nitrate hexahydrate and urea in deionized water, then dispersing titanium isopropoxide in ethylene glycol solution, mixing the above two solutions; then continuously stirring the solution mixture under heating conditions until the solvent is completely evaporated; finally, calcining the obtained powder to remove impurity ions, and obtaining nanoparticles of Mg x Ti y O5; Mg x Ti y O5, InCl3·4H2O, thioacetamide and urea were dispersed in an ethanol aqueous solution. After continuous stirring, the solution was subjected to a hydrothermal reaction. After the solution was naturally cooled to room temperature, it was centrifuged, washed, and then dried to a constant weight to obtain a catalytic material Mg x Ti y O5 / In2S3. This photocatalytic system achieves effective pollutant degradation and has the characteristics of simple synthesis method, good stability and reusability.

The utility model aims to provide a vinyl chloride monomer dehydration device, which is characterized in that a by-pass pipe is arranged on a vinyl chloride VCM monomer conveying pipeline, and the vinyl chloride VCM monomer sequentially enters a cooler, a prefilter, a coalescer and a heater through the by-pass pipe and then returns to the conveying pipeline to complete dehydration. According to the utility model, the removal of water in the VCM monomer is realized, the problem of system blockage is solved, and the product quality and the long-period stable operation of the system are ensured.

The utility model relates to the technical field of chromite sand separation vibration screening equipment, in particular to a chromite sand multi-stage separation vibration screening machine. The technical problems that when the chromite sand separation vibration screening machine is used, chromite sand can only be preliminarily separated, part of unqualified ore sand can still fall into a collecting box together, and the separation efficiency is low are solved. According to the technical scheme, the chromite sand multi-stage separation vibration screening machine comprises a vibration screening machine body, a first separation assembly, a vibration assembly, a moving assembly, a second separation assembly, a collecting assembly and a control assembly; compared with a traditional chromite sand multi-stage separation vibration screening machine, the chromite sand multi-stage separation vibration screening machine can only conduct preliminary separation on chromite sand, part of unqualified ore sand can still fall into a collecting box together, and the separation efficiency is low; and the chromite sand can be quickly and effectively subjected to multi-stage separation, and the separation efficiency of the chromite sand is improved.

The utility model relates to a device for gas-liquid separation belongs to hydrogen fuel cell engine hydrogen supply circulation system's gas-liquid separation technical field, aiming at the problem that separation efficiency and system resistance are difficult to balance in prior art, cannot give consideration to different particle size droplet separation and impurity gas discharge, the device includes upper casing and lower casing, the upper casing is divided into rough filter cavity and fine filter cavity through vertical partition, is equipped with radial guide component and I -shaped impact separation component in rough filter cavity, is equipped with cyclone separator with inner cylinder in fine filter cavity, and lower casing forms water collecting cavity, gas-liquid mixture is guided to impact separation component and separates big droplet after being guided to guide component, enters cyclone separator and separates small droplet through centrifugal force, and separated liquid converges into water collecting cavity, and the outlet cavity passes through hydrogen concentration sensor control impurity gas discharge, the utility model realizes different particle size droplet high -efficient separation, reduces system resistance, guarantees that hydrogen purity meets the requirement, promotes hydrogen recycling rate, is applicable to hydrogen fuel cell engine hydrogen supply circulation system.

This invention discloses an integrated sand and gravel sorting and cleaning machine for civil engineering, including an outer casing. In this invention, a vibrator is fixedly connected to the bottom end of the outer casing, and a motor is fixedly connected to the bottom end of the inner wall of the outer casing. A hollow shaft extends from the upper end of the motor, and two sets of hollow rotating rods are fixedly connected to the cylindrical outer surface of the hollow shaft, with the hollow shaft communicating with the hollow rotating rods. Each set of hollow rotating rods has brush bristles at its lower end. The motor drives the hollow rotating rods to rotate via the hollow shaft. The rotation of the hollow rotating rods disperses the sand and gravel as much as possible, preventing sand and gravel accumulation and reducing separation efficiency. Similarly, it also prevents sand and gravel accumulation on the fine filter screen. The brush bristles clean the perforations on the coarse and fine filter screens, preventing clogging. Simultaneously, when the regulating valve is opened, water is sprayed through the nozzles to clean the coarse and fine filter screens. The regulating valve can also be opened slightly, and the small water flow from the nozzles can further clean the sand and gravel, preventing dust from splashing during sand screening.

The invention discloses an evaporator, and relates to the technical field of evaporators, the evaporator comprises an evaporation bin for heat exchange and a separation bin for gas-liquid separation, an annular filter cartridge and a movable filter cover are arranged in the separation bin, and the interior of the annular filter cartridge is used for circulating a gas-liquid mixture; the movable filter casing is connected to the annular filter cylinder in a sliding manner so as to perform gas-liquid separation on the gas-liquid mixture, and the movable filter casing has a first gas-liquid separation state in which the movable filter casing is collected into the annular filter cylinder to form a large thickness and a small surface area, and a second gas-liquid separation state in which the movable filter casing extends out of the annular filter cylinder to form a small thickness and a large surface area. And an air inlet and a heat exchange pipeline are arranged on the evaporation bin. According to the evaporator provided by the invention, when the device normally operates, the movable filter cover is retracted into the annular filter cylinder to form a first gas-liquid separation state; and when the device operates at high power, the movable filter casing extends out of the annular filter cartridge to form a second gas-liquid separation state.

The invention discloses waste gas purification equipment for industrial equipment part production, and relates to the technical field of waste gas purification equipment for industrial equipment part production. The waste gas purification equipment for industrial equipment part production comprises a purification tank, a gas inlet pipe is fixed to the right side of the purification tank, and a gas outlet pipe is fixed to the top of the purification tank; a spraying device is arranged on the outer wall of the purification tank and comprises a water tank, a water pump, a water outlet pipe and a spraying pipe. According to the waste gas purification equipment for industrial equipment part production, when waste gas is treated and enters a purification tank from a gas inlet pipe, a motor is started, a rotating shaft can drive a separation plate to rotate, the separation plate can strike the entering waste gas, and therefore a large number of impurities in the waste gas can be struck and fall off; the waste gas is prevented from driving a large amount of solid impurities to be discharged upwards, and the problem that the waste gas containing a large amount of solid particle impurities is discharged upwards to cause blockage of the spraying pipe is solved.

The present invention provides a soil and groundwater pollution collaborative remediation system, which includes a multiphase extraction and remediation unit, a gas phase extraction and remediation unit and a groundwater circulation remediation unit. The groundwater circulation remediation unit includes a main well system, a circulation pumping and injection system, a pumping and injection pump and a dosing device. The main well system includes a circulation well, and at least three screen tubes are arranged from top to bottom in the circulation well, one of which is arranged above the static liquid level of the groundwater, and the upper and lower layers of the screen tubes arranged below the static liquid level of the underground are both provided with isolation sections. The extraction port of the gas phase extraction and remediation unit is arranged in the screen tube above the static liquid level of the groundwater, and the extraction port of the multiphase extraction and remediation unit and the injection port of the groundwater circulation remediation unit are arranged in the screen tube below the static liquid level of the underground. The soil and groundwater pollution collaborative remediation system of the present invention improves the soil and groundwater pollution remediation efficiency, thereby realizing the green, efficient and low-carbon synchronous removal of pollutants in soil and groundwater.

The present application discloses a vertical gas-water separator with a two-stage multi-cyclone demister, which relates to the technical field of gas-water separation and comprises a separator body, wherein a support assembly is fixedly mounted on the bottom end of the separator body, and a filter assembly is fixedly sleeved on the outer surface of the separator body. The present invention enables the device to be stably placed on an inclined ground for operation through the support assembly, so that the internal components remain stable, thereby maintaining uniform stress on the internal components of the device and reducing the wear of the components. The gas-water mixture can be filtered through the filter assembly, and can be cleaned automatically when the filter screen is clogged to keep the filter screen unobstructed. The demister assembly has a double filtering effect, so that the tiny gas-water mixture is fully separated. During the separation process, the separation block can shake to quickly leave water droplets behind, thereby preventing blockage that makes it difficult for the gas to rise, and improving the separation efficiency and effect.

The invention provides a preparation method of modified magnetic particles and a continuous demulsification method of the modified magnetic particles, and the preparation method comprises the following steps: adding vinyl trimethoxy silane into absolute ethyl alcohol, and stirring to obtain a solution A; adding perfluorooctanoic acid and sodium hydroxide into absolute ethyl alcohol, and stirring to obtain a solution B; adding magnetic particles into a mixed solution of the solution A and the solution B, transferring into a reaction kettle, placing at 80-90 DEG C, preserving heat for 0.5-2 hours, cooling and drying to obtain modified magnetic particles; according to a method for applying the modified magnetic particles to turbulent dispersion continuous demulsification, an emulsion is pumped into a stirring tank through a peristaltic pump to be mixed with M-MMPs, and the hydraulic retention time in the stirring tank is longer than or equal to 30 s; the surface magnetic field intensity of the electromagnet is controlled to be 400 Gs or above, the height of the separation chamber is smaller than 5 cm, the hydraulic retention time of the emulsion in the separation chamber is longer than 30 s, and separated oil and water are collected; and the modified magnetic particles cannot be gradually adhered to the wall surface of the separation chamber, so that the optimal separation effect is achieved.

This invention discloses an online detection device for water and gas content in transformer oil, belonging to the field of transformer detection technology. It includes a transformer oil tank with an installation plate at the outer end. The installation plate mounts an oil pump, a pre-filtration unit, and a vortex separation unit. A sensor control unit is mounted on the vortex separation unit, and a hollow probe is located on its inner side. The pre-filtration unit includes a filter container, a coarse filter layer, a fine filter layer, and a pre-separation pressure control plate. The vortex separation unit includes a detection chamber, a conical oil outlet chamber, and a tangential oil inlet pipe. The sensor control unit includes an electromagnet and moisture and gas detection sensors. The hollow probe includes a variable-diameter hollow sleeve, a magnetic piston, and a jet microchannel. Through filtration to remove impurities, active gas separation, and vortex separation concentration, combined with the magnetic piston's active adsorption of gas samples and the purging of sensors, it achieves rapid and accurate online detection of moisture and gas. The device features fast response, high accuracy, and strong stability, meeting the needs of transformer oil trace detection and providing support for safe transformer operation and maintenance.

The invention discloses a regulation and control method of a single-stage microporous metal oil-water separation membrane with high permeability and high selectivity, which comprises the following steps of: 1, obtaining a aesthetic formula and empirical parameters a, b and c through a gradient experiment; 2, deducing a minimum value of f according to empirical parameters a, b and c to obtain a corresponding R / D; and 3, obtaining the single-stage microporous metal oil-water separation membrane with high permeability and high selectivity by adopting the obtained R / D. According to the single-stage microporous metal oil-water separation membrane designed by adopting a structure-function integrated scheme, the seesaw effect between high selectivity and high permeability is broken through, the flux bottleneck of a nano ceramic / micron metal porous separation membrane is broken through, and the actual wetting state is continuously and quantitatively described by a proposed aesthetic formula; the microporous membrane is high in strength, good in mechanical durability and free of coating stripping risk, upgrading and optimization of the metal oil-water separation membrane are accelerated, and technical support is provided for cost reduction and efficiency improvement of industrial mixed fluid filtration.

The invention relates to an S-doped g-C3N4 / Bi2MoO6Z type heterojunction photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of photocatalysis. The preparation method of the catalyst comprises the following steps: mixing and grinding melamine, ammonium bromide and thioacetamide, and then carrying out a thermal polycondensation reaction to synthesize S-doped g-C3N4; mixing the S-doped g-C3N4 with a molybdenum source and bismuth source solution to form a turbid liquid; and finally, carrying out solvothermal reaction on the turbid liquid to obtain the S-doped g-C3N4 / Bi2MoO6 photocatalyst. The preparation process is simple, the cost is low, the operation repeatability is high, and the prepared catalyst has a homogeneous structure and excellent visible light photocatalytic activity, can effectively degrade organic pollutants, and has a wide application prospect, especially in the fields of energy and environmental governance.

The utility model relates to separating device technical field discloses a kind of separating devices for urban sludge treatment, including shell, and shell lower end is fixedly connected with sewage outlet, and the end fixedly connected with water pump of shell away from sewage outlet, and the end fixedly connected with drain pipe of water pump away from shell, shell upper end is provided with feeding assembly, and feeding assembly includes the sewage inlet fixedly connected of shell upper end, and the inside fixedly connected with separating pipe of one end of shell close to sewage inlet, and the end setting with feeding assembly of separating pipe away from sewage inlet, feeding assembly lower end is provided with conveying assembly, and conveying assembly upper side is provided with beating component, and conveying assembly one end lower side is provided with sewage discharge component, can be through feeding assembly and feeding assembly etc. Cooperation, when separating and treating sludge, effectively improve the separation efficiency of sludge and water, reduce the low separation efficiency caused by silt blockage, while subsequent treatment of separated sewage, reduce the silt content carried in sewage.

The utility model discloses a regenerated paper pulp fiber separating device which comprises a separating box, a screen drum mechanism with an internal hollow structure is fixedly connected inside the separating box, the screen drum mechanism is used for separating paper pulp fibers, and screen hole assemblies are arranged inside the screen drum mechanism in an annular array mode. By means of the design, the fibers are subjected to more effective acting force in the separation process, the separation speed is increased, the separation efficiency is improved, the production period is shortened, the yield is increased, meanwhile, the screen hole assembly can accurately screen the fibers of different sizes, and the production efficiency is improved. And the separation quality is ensured, and the quality of recycled paper is improved.

The utility model discloses a material bin with a screening function, which comprises a bin body, a screen and a vibrator, a screening discharge port is arranged at the bottom end of the bin body, the screen is covered in the bin body, the vibrator drives the screen to vibrate, and the screen is connected onto the bin body through a vibrating screen spring. According to the material bin disclosed by the utility model, the screen is arranged, so that waste asphalt pavement materials entering the material bin can be primarily screened according to the setting of the screen, and the situation that the discharge port at the bottom end of the material bin is blocked by large waste asphalt pavement materials, and the discharge efficiency and the separation efficiency are reduced is avoided; and the screen can be arranged to be detachable, so that the screen can be conveniently replaced according to different separation systems, and the adaptability of the material bin is improved.

The invention relates to separation equipment for water treatment, and relates to the technical field of water treatment. The separation equipment for water treatment comprises an equipment body, a water inlet pipe and a water outlet pipe are arranged on the equipment body, a mounting frame is arranged in the equipment body, a filter cover is arranged on the outer side of the mounting frame, and the mounting frame is located in the filter cover and connected with the filter cover. The end, communicated with the equipment body, of the water inlet pipe is lower than the filter cover, and a cavity between the mounting frame and the filter cover is communicated with a water outlet pipe. The device has the effect of reducing the probability that the filter screen is blocked by solid impurities.