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42 results about "Gravitational sedimentation" patented technology

April 21, 2016. Gravitational sedimentation (originally the pipette method) measures the settling rate of particles in liquid medium and relates this rate to the particle mass by use of the Stokes law.

Centralized dust removal device for lithium battery cell production workshop

The utility model relates to the field of dust removal, and particularly discloses a centralized dust removal device for a lithium battery cell production workshop, which comprises a one-way anti-explosion valve, a dust removal device body, a filter and a cooler, the dust removal device body comprises a filter box body, an air outlet is formed in one side of the top of the filter box body, an air outlet grating is connected in the air outlet, a filter cylinder is fixedly connected in the filter box body and located below the air outlet, and flow disturbing is conducted on entering gas through a baffle, so that the moving speed of the entering gas can be reduced, and the dust removal effect is improved. When the filter element is cleaned, the moving speed of the dust is slowed down, at the moment, due to the gravity settling effect, coarse particle dust in the gas directly falls into the dust collecting box, so that the pre-dust-removing effect is achieved, excessive dust can be prevented from being attached to the filter element, the frequency of cleaning the filter element is reduced, and the working efficiency is improved.
Owner:ANHUI WEIDA ENVIRONMENTAL TECH CO LTD

Preparation process method for grinding and screening powder

PendingCN120381913ADirt cleaningGrain treatmentsForeign matterGravitational sedimentation
The invention relates to the technical field of powder preparation, and particularly discloses a preparation process method for grinding and screening powder, which comprises the following steps: removing impurities from blocky raw materials through a vibration screening device, and then removing metal foreign matters by using a magnetic separation device. Then, a grinding step is carried out, the blocky raw materials are ground through multi-stage grinding equipment, primary powder is formed, and the grinding mesh number is increased step by step; and then, in the dynamic screening stage, coarse powder, medium coarse powder and fine powder are separated from the primary powder through a powder selecting device, the coarse powder is collected through a gravity settling method, and the medium coarse powder is separated through centrifugal force and airflow. In the closed-loop recovery link, coarse particles are sent back to grinding equipment for treatment, medium coarse powder is sent to a medium coarse powder collecting area, and fine powder is conveyed to a fine powder collecting device. And finally, cleaning the fine powder by using a pulse bag-type dust collector, and temporarily storing the finished product powder into a finished product collecting bin. According to the process, efficient screening, grinding and recycling of the raw materials are achieved, and the purity and high quality of the powder are ensured.
Owner:GUANGDONG GUANCHENG MECHANICAL & ELECTRICAL ENG CO LTD

Extraction method suitable for extracellular vesicles in freshwater pearl shell tissue waste liquid

The invention discloses a method suitable for extracting extracellular small vesicles in fresh water pearl shell tissue waste liquid, which comprises the following operation steps: (1) solid-liquid separation: slaughtering pearl shells, and filling slaughtering waste liquid into a waste liquid crude extraction device; (2) waste liquid crude extraction: performing multi-stage gradient filtration and gravity settling on the slaughtering waste liquid by using a waste liquid crude extraction device to obtain clarified waste liquid; (3) removing impurities: removing impurities for the first time and removing impurities for the second time; (4) concentration of the extracellular vesicles: concentrating the extracellular vesicles by using an ultra-speed centrifuge to obtain a high-concentration extracellular vesicle solution; and (5) preservation of extracellular vesicles: according to the final volume of the high-concentration extracellular vesicle solution obtained in the step (4), carrying out sample standardization through protein concentration, sub-packaging the sample, and carrying out long-term preservation in a low-temperature environment. The particle sizes of the extracted vesicles are concentrated, high-purity and complete extracellular small vesicles can be obtained, and the method is suitable for biomedical research and product development.
Owner:SHANGHAI OCEAN UNIV +2

Atomization device

The invention discloses an atomization device, and belongs to the technical field of atomization devices. Comprising a support, a shell assembly and a first sealing piece, a containing cavity is defined by the support and the shell assembly, and the first sealing piece is arranged in the containing cavity and connected with the support in a sealed mode; the atomization device is provided with a main air channel and a sensor air channel, the support and the shell assembly define the main air channel, the support, the shell assembly and the sealing piece define the sensor air channel, the main air channel and the sensor air channel are independent from each other, and in the first direction, the end, close to the atomization bin, of the sensor air channel is located between the end, close to the atomization bin, of the main air channel and the atomization bin. The sensor air channel is physically isolated from the main air channel, aerosol, liquid drops or turbulent flow is prevented from directly impacting the sensor, the sensor air channel is higher than the main air channel, gravity settling and inertial separation are utilized, most atomized particles flow along the main air channel due to self weight and inertia, and the situation that atomized media, condensate and aerosol enter the sensor air channel is reduced; and the air passage of the sensor is prevented from being blocked.
Owner:HG INNOVATION LTD

Process and device for concentrating and refining potassium hydroxide

The invention relates to the technical field of chemical production concentration and purification, and discloses a potassium hydroxide concentration and refining process and device, the potassium hydroxide concentration and refining process comprises a shell, the shell is internally provided with a concentration assembly for concentrating a multi-stage clarified solution, and the top end of the shell is provided with a water inlet pipe communicated with an inner cavity space. According to the equipment, all parts in a concentration assembly are matched, and a gravity water supply principle is formed by utilizing the liquid level difference between a water inlet pipe and an overflow port, so that a solution sequentially flows through a first-stage middle cavity to realize primary slow flow sedimentation, secondary slow flow collection under the guidance of a water guide conical barrel and spiral slow flow separation of an inner conical barrel and a spiral strip sheet; finally, multi-stage clarification and refining of the solution are completed, the purpose of removing impurities with different particle sizes in the solution is achieved, the impurities with different particle sizes can be separated in a targeted mode through cooperation of stage slow flow and gravity settling, the refining purity of the potassium hydroxide solution is remarkably improved, and the problem that impurities are not thoroughly removed due to a single clarification structure is solved.
Owner:INNER MONGOLIA RUIDA TAIFENG CHEM CO LTD

Platelet concentration method and system based on gravity sedimentation

The present application relates to the technical field of platelet concentration, in particular to a platelet concentration method and system based on gravity sedimentation, comprising the following steps: obtaining sedimentation path unit parameters and collecting speed difference values, screening staggered difference point and judging acceleration trend, extracting decreasing curvature difference to determine boundary, adjusting inclination angle to collect speed change rate and screen falling path, calculating vector to establish extraction path to obtain secondary concentration data. In the present application, by extracting sedimentation speed difference value and acceleration change trend, the layered boundary area is identified, the positioning accuracy of the concentration limit is improved, based on the inclination disturbance induced dynamic response, the path unit with outstanding speed rising rate is screened, the perception ability and layered clarity of the limit area are enhanced, with the help of speed vector direction and center position calculation, a stable linear extraction path is constructed, efficient recovery and focused extraction of trace platelets are realized, the precision, stability and reuse efficiency of platelet concentration are improved, and it is suitable for complex sample conditions.
Owner:JIANGSU DAOHE RUISI BIOTECHNOLOGY CO LTD

Gas-solid separation system for flammable and explosive gas dust

ActiveCN224167208Uincrease pressureSolve problems prone to cloggingCombination devicesGas solidThermodynamics
The utility model provides a gas-solid separation system for flammable and explosive gas dust, which comprises a gravity settling device, a gas inlet pipe is arranged on one side of the gravity settling device, and the other side of the gravity settling device is communicated with a cloth bag dust removal device through a connecting pipeline. Collecting mechanisms are arranged at the bottoms of the gravity settling equipment and the cloth bag dust removal equipment, conveying mechanisms are arranged at the bottoms of the collecting mechanisms, negative pressure mechanisms are arranged on one sides of the collecting mechanisms, and balancing parts and pressure gauges are arranged on the outer sides of the gravity settling equipment and the cloth bag dust removal equipment. The gas-solid separation system for the flammable and explosive gas dust solves the problems that when the existing gas-solid separation equipment is used for treating the dust separation of the flammable and explosive gas, the potential safety hazard is high, the separated solid dust is inconvenient to treat, and the blockage phenomenon is easy to occur in the solid dust discharging process.
Owner:SICHUAN LVJING ENVIRONMENTAL PROTECTION ENG CO LTD

Environment-friendly treatment mechanism of intelligent fertilizer production system

The environment-friendly treatment mechanism of the intelligent fertilizer production system comprises a bag-type dust collector, an inlet of the bag-type dust collector is connected with a waste gas discharge outlet of fertilizer production equipment, and the right side of the bag-type dust collector is connected with a cyclone dust collector through a first conveying pump; the right side of the cyclone dust collector is connected with a gravity settling treatment box through cooperation of a second conveying pump and an exhaust gas discharging pipe. Through multi-stage treatment of the bag-type dust collector, the cyclone dust collector, the gravity settling treatment box and the spraying water washing box, dust and pollutants with different particle sizes can be effectively removed, the waste gas treatment efficiency and effect are improved, the sealing baffles are distributed on the two sides of the separation grid, the sealing performance of the connecting position can be improved, the separation grid can be installed and reinforced, and the service life of the separation grid is prolonged. The connection sealing performance among all treatment links is guaranteed, waste gas leakage is prevented, the treatment efficiency is improved, the gravity settling treatment box is provided with a slag discharging pipe and an adjusting valve, and settled waste slag can be conveniently and regularly cleaned.
Owner:GUANGDE QINGTINGFENG BIOTECHNOLOGY CO LTD

Novel oil-gas separator

The utility model discloses a novel oil-gas separator, and relates to the technical field of oil-gas separation. The oil-gas separator comprises a shell and an oil-gas separation assembly, the shell comprises an outer shell, a distribution base fixed to the top of the outer shell, a base fixed to the bottom of the outer shell and exhaust grooves evenly formed in the peripheral side of the base. The oil-gas separation assembly comprises an oil collection groove body installed on the inner ring of the base in a threaded fit mode, a gas separation base fixed to the inner ring of the oil collection groove body and a mask arranged outside the gas separation base in a sleeving mode. According to the oil-gas separator, a plurality of oil-gas separation channels formed by the spiral blades and the mask are arranged, and hydrophobic materials are coated on the surfaces of the spiral blades, so that the oil-gas separator can effectively utilize a physical separation mechanism (such as gravity settling, collision interception and the like) to improve the capturing efficiency of oil drops, and the oil drops are helpful to slide to the oil collecting groove body along the spiral blades; along with the gradual widening of the channel, the gas flow speed is reduced, so that the natural sedimentation of larger oil drops is facilitated, and the oil-gas separation effect is improved.
Owner:DONGGUAN EDISON FILTER CO LTD

Wet-type rotary precise sample separation device and method for marine sediment particle size analysis

PendingCN122042337APreparing sample for investigationSediment particle sizeGravitational sedimentation
The invention relates to a wet-type rotary precise sample separation device and method for marine sediment particle size analysis. The wet-type rotary precise sample separation device comprises an anti-sedimentation sample injection unit, a rotary sample separation unit and a driving unit, the anti-sedimentation sample introduction unit comprises a sample introduction funnel and a dynamic homogenizer arranged in the sample introduction funnel, and a liquid outlet is formed in the bottom of the sample introduction funnel; the rotary sample separation unit is positioned below a liquid outlet of the anti-sedimentation sample injection unit and comprises a distribution disc capable of rotating around a vertical axis, and at least two stations for accommodating receiving containers are arranged on the distribution disc along the circumferential direction; and the driving unit is in transmission connection with the distribution disc and is used for driving the distribution disc to rotate. The device is compact in structure, easy and convenient to operate and high in sample separation precision, the influence of gravity sedimentation on sampling uniformity can be overcome in a mechanical mode, and it is ensured that each trace sample separated from original suspension liquid is highly consistent with an original sample in particle size composition, so that the requirement for high-precision laser particle size analysis is met.
Owner:SECOND INST OF OCEANOGRAPHY MNR

Air purifier control method and device, air purifier and medium

The embodiment of the invention provides an air purifier control method and device, an air purifier and a medium, by detecting the physical characteristics, including the particle size, the shape, the migration path parameter and the gravity settling speed, of particulate matter in air when passing through the air purifier, the working gear of the air purifier is dynamically adjusted, and precise purification is achieved. The most suitable purification mode can be flexibly selected according to the physical characteristics of different particulate matters, so that the purification efficiency is improved, meanwhile, unnecessary energy waste can be avoided, and the service life of equipment is prolonged.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Sequencing batch reaction device for removing total DNA in sewage based on ferrate and calcium sulfite coupling system

The utility model relates to the technical field of wastewater treatment, in particular to a sequencing batch reaction device for removing total DNA (Deoxyribose Nucleic Acid) in sewage based on a ferrate and calcium sulfite coupling system. The reaction device comprises an active species generation zone, a reaction zone and a precipitation zone. The active species generation area is provided with a potassium ferrate and calcium sulfite liquid inlet, a reaction liquid outlet and a controllable stirring paddle, and a hose communicated with the reaction area is arranged at the bottom of the active species generation area; the reaction area is provided with an acid-base liquid inlet, a pH probe, a submersible stirrer, a reaction liquid inlet, a sewage sample inlet and a liquid medicine outlet, and a hose communicated with the settling area is arranged at the bottom of the reaction area; and the settling zone is of a funnel-shaped structure. According to the sewage treatment device, potassium ferrate and calcium sulfite are ensured to be fully mixed in the active species reaction zone through effective partitioning, so that the utilization efficiency of a medicament is improved, the medicament and sewage are fully mixed in the reaction zone, pollutants are removed, flocculates are removed through gravity settling in the settling zone, and the total DNA in the sewage is effectively removed.
Owner:LIAONING UNIVERSITY

Separation treatment equipment based on animal cleaning wastewater

The invention discloses separation treatment equipment based on animal cleaning wastewater, and relates to the technical field of wastewater treatment. The equipment comprises a data acquisition and preliminary analysis module, a depth detection and proportion determination module, a process type judgment module, a process parameter determination module, a calibration factor acquisition module, an execution sequence generation module and an adaptability verification module. The method comprises the following steps: collecting wastewater sample data in real time through a sensor array, and identifying the distribution proportion of protein and grease in combination with high-resolution spectrum scanning and zeta potential analysis; according to pollutant characteristics, process types such as microporous membrane filtration or gravity sedimentation are intelligently selected, and parameter combinations are matched and optimized based on a process parameter database; the chemical bonding strength is further analyzed through XPS to obtain a calibration factor, and an automatic execution sequence is generated. The efficient and accurate separation of the animal cleaning wastewater with complex components is realized, the treatment efficiency is remarkably improved, and the toxic influence is reduced.
Owner:SHENYANG JIAHE FOOD CO LTD

A device for the production and storage of high-quality hydrogen

PendingCN122327259AControl cellOxygen delivery
This invention discloses a device for preparing and storing high-quality hydrogen, including a hydrogen production unit, a drying unit, a control unit, and a hydrogen storage unit. A shut-off valve is installed on one of the pipelines and is electrically connected to the control equipment for regulating the on / off state and flow rate of oxygen delivery. This invention constructs a dual gas-liquid separation mechanism of "centrifugal force + gravity" and a self-cleaning system for the screen plate through components such as a servo motor, rotating rod, spiral blades, and corrugated screen plate. The rotating spiral blades apply a stable centrifugal force to the hydrogen flow, throwing fine water droplets against the container wall and guiding them out through a conical chamfer. The corrugated screen plate increases the contact area through its corrugated structure to achieve secondary interception. Simultaneously, the high-frequency vibration driven by a vibrating hammer and spring prevents droplet accumulation and blockage, effectively solving the shortcomings of traditional devices such as low efficiency of simple gravity sedimentation separation, easy filter clogging, and frequent shutdowns for maintenance.
Owner:CSSC (HANDAN) PERUI HYDROGEN ENERGY TECH CO LTD

Anaerobic reactor simulation system and method based on discrete space-time multi-subject evolution

ActiveCN122067622AWaste based fuelChemical processes analysis/designAnaerobic reactorGravitational sedimentation
The invention belongs to the technical field of environmental engineering and industrial process control, and particularly relates to an anaerobic reactor simulation system and method based on discrete space-time multi-subject evolution. The system comprises a physical parameter mapping module, a discrete space-time calculation engine, a virtual microbial community builder, a dynamic evolution coupling processor and a stability early warning and control module. Behavior rules of hydrolysis, acid production and methane production subjects are defined in discrete grids, and Monod-Arrhenius kinetic equations and local pH suppression logic are combined, so that material flow and biological phase succession in a reactor is simulated. According to the method, a gravity settling mechanism based on the main body crowding degree and nonlinear instability response logic under the impact load are particularly introduced, the spatio-temporal evolution path of the rancidification process can be visually presented, and the technical problem that a traditional homogeneous model cannot predict local acidification and granular sludge structural characteristics is solved; the method is suitable for sewage treatment process optimization and fault early warning.
Owner:SHENYANG AEROSPACE UNIVERSITY

Multi-modal fusion feeding device and method for continuous hydrothermal liquefaction

The invention relates to the technical field of biomass resource utilization, and discloses a multi-modal fusion feeding device for continuous hydrothermal liquefaction, which comprises a pretreatment and supply unit for mixing a biomass raw material with water to form slurry; a feeding hole of the active cyclone centrifugal separation unit is connected with the pretreatment and feeding unit, and the active cyclone centrifugal separation unit is used for receiving the slurry and separating the slurry into solid-containing underflow and purified overflow under a centrifugal force field. According to the multi-mode fusion feeding device and method for continuous hydrothermal liquefaction, an active rotational flow centrifugal separation unit is adopted to replace traditional gravity sedimentation, solid particles are efficiently separated through centrifugal force, the separation state is mastered in real time through ultrasonic monitoring, and the depth of an overflow pipe is dynamically adjusted through an intelligent controller. According to the mode, fine particles and light fibers which are difficult to treat in a traditional method are effectively removed, meanwhile, solids are continuously discharged along with underflow, accumulation and shutdown cleaning are avoided, and efficient and continuous slurry purification is achieved.
Owner:ENERGY RES INST OF JIANGXI ACAD OF SCI +1

Automatic treatment system for kaolin deironing and whitening acid water

The utility model provides an automatic treatment system for kaolin deironing and whitening acid water. The automatic treatment system comprises a gravity sedimentation recovery tank, a pH regulating tank, an aeration tank, a horizontal flow sedimentation tank, a mechanical acceleration clarification tank and a clean water tank, a water inlet input pipe is arranged on the gravity settling recovery tank, the upper part of the gravity settling recovery tank is connected with the pH regulating tank, the pH regulating tank is connected with the alkali liquor adding tank, the bottom of the pH regulating tank is connected with the aeration tank, the bottom of the aeration tank is connected with the horizontal flow sedimentation tank, and the upper part of the horizontal flow sedimentation tank is connected with the mechanical acceleration clarification tank; and the mechanical acceleration clarification tank is connected with the PAC solution storage tank and the PAM solution storage tank. The automatic treatment system disclosed by the utility model has the beneficial effects that residual kaolin in acid water is recovered through gravity settling, the vast majority of kaolin can be recovered, and the treatment capacity of a subsequent water treatment system and the dosage of a flocculating agent can be effectively reduced, so that the operation cost of water treatment is reduced; the system has a remarkable treatment effect, and is provided with a water quality on-line monitor, so that the treatment time is effectively shortened.
Owner:CHINA-AFRICA KAOLIN MAOMING NEW MATERIALS CO LTD

Gas-solid separation device and method for flammable and explosive gas dust

The invention provides a gas-solid separation device and method for flammable and explosive gas dust. The method comprises the following steps: introducing mixed gas into gravity settling equipment; gas and fine dust which are not settled after gravity settling enter cloth bag dust removal equipment, and the fine dust is filtered and collected into a dust hopper; the gas subjected to cloth bag dust removal enters efficient filtering equipment to be filtered again; the method comprises the following steps: performing vacuum operation on a bin for collecting dust, closing a vacuum pipeline valve of the bin when vacuum pressure reaches-0.09 MPa, stopping operation of a vacuum pump, opening a vacuum balance pipeline electromagnetic valve to perform pressure balance, and closing a vacuum balance pipeline valve when the pressure reaches system pressure; when the blanking valve of the gravity settling equipment or the blanking valve of the dust hopper of the cloth bag dust removal equipment is opened, materials fall into the lower stock bin, and when the high level meter of the stock bin senses that the materials are full, the corresponding blanking valve is closed, the blanking valve of the stock bin is opened, and the materials are transferred to the next stock bin. According to the invention, the separation efficiency and safety are improved.
Owner:SICHUAN LVJING ENVIRONMENTAL PROTECTION ENG CO LTD

Efficient and environment-friendly two-stage and three-stage diatomite water separation and purification fine powder preparation process

The invention provides a high-efficiency and environment-friendly two-stage and three-stage diatomite water separation and purification fine powder preparation process, which comprises the following steps: crushing and pulping diatomite ore, sequentially carrying out gravity settling impurity removal and multi-stage pressure type hydrocyclone group series connection to separate and enrich a diatomite shell, concentrating and filter-pressing and dehydrating the obtained fine soil slurry, and carrying out water separation and purification on the refined soil slurry to obtain the fine powder, namely the high-efficiency and environment-friendly two-stage and three-stage diatomite water separation and purification fine powder. Indirect heating drying at the temperature of less than or equal to 250 DEG C is adopted, the dried material is ground and graded to obtain fine powder with D97 of less than or equal to 25 microns, and wastewater is recycled after being treated in the whole process; a physical sorting method is adopted, key procedures such as drying temperature are strictly controlled, and airflow crushing and other mild processing modes are adopted, so that the inherent microscopic porous structure of the diatom is furthest protected, and the performances such as high specific surface area and pore volume of a final product are ensured; the requirements of high-end application fields on the structural integrity of the diatomite material are met.
Owner:CHANGBAI KOREAN AUTONOMOUS COUNTY FENGRUN DIATOMITE PRODUCTS CO LTD

Magnetic Agglregation Agent Added Water Treatment Device

Provided is a water treatment apparatus capable of downsizing a biological reaction tank apparatus by combining a nitrification inhibition tank and a nitrification promotion tank unit corresponding to fluctuations in water quality and quantity of treated water, and simultaneously efficiently treating SS, BOD, nitrogen components, etc. 【Solution means】The magnetic coagulant-added water treatment apparatus mainly comprises a magnetic coagulant dispenser 1, a primary nitrification inhibition tank 4, a primary nitrification promotion tank 5, a secondary nitrification inhibition tank 6, a secondary nitrification promotion tank 7, a high-speed coagulation sedimentation tank 8, and further, an upward flow fiber filter 11 for advanced treatment is connected according to conditions. An external magnetic field generator is provided at the lower part of the outer wall of the high-speed coagulation sedimentation tank 8, and the flocs containing magnetic substances can be rapidly sedimented by magnetic force and separated without relying on gravity sedimentation, so that a large sedimentation tank and long-distance piping are unnecessary.
Owner:KAMATA BIO ENG

Six-channel micrometer high-precision filtration separation method

The present application relates to the technical field of fluid precision separation, and discloses a six-channel micrometer high-precision filtration separation method, which comprises the following steps: controlling fluid cooling to a supersaturation precipitation temperature to generate colloidal flocculates; sequentially conveying the fluid through a six-stage physical separation sequence composed of gravity sedimentation, centrifugal cyclone, magnetic adsorption and multi-stage filtration medium; collecting terminal filtration differential pressure in real time and calculating the resistance growth rate; when the resistance growth rate exceeds a critical compaction threshold, feedback adjusting the front-end cooling rate or conveying temperature to optimize the flocculate structure rigidity; by establishing a reverse feedback regulation mechanism between the terminal rheological resistance characteristics and the front-end thermodynamic precipitation parameters, the technical problem that soft colloidal impurities penetrate the filtration medium due to shear deformation is solved, and the separation precision and process operation stability of complex heterogeneous fluid systems are improved.
Owner:HUNAN FOUR SEASONS OIL CO LTD

Industrial flue gas environmental protection treatment separation device

The application relates to the technical field of industrial manufacturing, and discloses an industrial flue gas environment-friendly treatment separation device, which comprises a cyclone separator, an exhaust pipe is arranged at the top of the cyclone separator, an air inlet pipe is arranged on the outer surface of the cyclone separator, a water draining mechanism is arranged in the air inlet pipe, the water draining mechanism comprises two groups of fixed columns fixedly arranged on the inner wall of the air inlet pipe and a supporting ring, and a water draining cylinder is rotatably arranged in the supporting ring. The device utilizes the flue gas flowing through the opening of the water draining pipe to form negative pressure on the inner wall of the water draining cylinder, the communicating pipe and the water tank, so that the supplementary water is sucked out of the water draining pipe, the water vapor for capturing solid dust particles is formed in the inner cavity of the air inlet pipe through high-temperature heating, in the process, the small-volume solid particles in the flue gas are adsorbed by the water vapor, thereby forming a large-volume solid particle, so that the gravity sedimentation efficiency of the dust in the flue gas in the cyclone separator is greatly improved, and the dust collecting and separating efficiency of the device is remarkably improved.
Owner:HENAN GLP ENVIRONMENTAL ENG CO LTD

Gravity sedimentation-based platelet concentration method and system

The invention relates to the technical field of platelet concentration, in particular to a platelet concentration method and system based on gravity settling, and the method comprises the following steps: acquiring settling path unit parameters and acquiring speed difference values, screening staggered difference value points and judging acceleration trend, extracting decreasing curvature difference to determine boundaries, and determining a platelet concentration result. Adjusting the dip angle acquisition speed change rate to screen a fallback path, and calculating a vector to establish an extraction path to obtain secondary concentrated data. According to the invention, through extracting the settlement velocity difference and the acceleration change trend, identifying the layered boundary area, improving the positioning accuracy of the concentration boundary, inducing the dynamic response based on the inclination angle disturbance, screening the path unit with the prominent speed rising rate, and enhancing the perception capability and the layered definition of the boundary area. By means of velocity vector direction and center position calculation, a stable linear extraction path is constructed, efficient recovery and focusing extraction of trace platelets are achieved, platelet concentration precision, stability and reutilization efficiency are improved, and complex sample conditions are adapted.
Owner:JIANGSU DAOHE RUISI BIOTECHNOLOGY CO LTD

Gas-solid separation device system

ActiveCN224558391UGas solidGravitational sedimentation
This utility model provides a gas-solid separation device system, including a gravity settling chamber, a cyclone collector, a high-precision dust collector, a drive device, and several connecting pipes. The gravity settling chamber, cyclone collector, high-precision dust collector, and drive device are connected sequentially along the airflow direction through the connecting pipes. The drive device is used to drive the dust-laden gas to pass through the gravity settling chamber, cyclone collector, and high-precision dust collector in sequence and discharge clean gas. The interior of the gravity settling chamber is equipped with a turbulence structure for gravity settling of coarse dust particles in the dust-laden gas to separate the coarse dust particles. The cyclone collector is used to make the dust-laden gas entering it rotate at high speed to separate medium-sized dust particles in the dust-laden gas using centrifugal force. The interior of the high-precision dust collector is equipped with a filter element structure for filtering the dust-laden gas. The filter element structure is a high-temperature ceramic membrane filter element or a titanium rod sintered filter element for filtering fine dust particles in the dust-laden gas.
Owner:GUANGDONG KAIJIN NEW ENERGY TECH CORP LTD +1

Method for improving phosphorus yield in wet-process phosphoric acid

The invention discloses a method for increasing the yield of phosphorus in wet-process phosphoric acid, and belongs to the technical field of wet-process phosphoric acid preparation and phosphogypsum resource utilization. The method comprises the following steps: coarsening calcium sulfate crystals in acidolysis slurry through an activating agent so as to facilitate gravity settling pre-separation; then, carrying out secondary washing on the phosphogypsum filter cake subjected to settling separation to dissolve out eutectic phosphorus, so as to obtain secondary recovery liquid rich in recovered phosphorus; the secondary recovery liquid does not directly return to the main reaction system, but forms an independent closed cycle, and on the premise of not influencing the phosphoric acid concentration of the main process, the recovered phosphorus is enriched and finally returned to the production system. According to the method, the phosphorus yield of wet-process phosphoric acid is increased to 99.28% from 96.13%, meanwhile, the phosphogypsum is deeply purified, the stabilizing treatment cost of the phosphogypsum is greatly reduced, the phosphogypsum meets the national first-class industrial solid waste standard, and a foundation is laid for high-added-value utilization of the phosphogypsum.
Owner:SICHUAN UNIV

A downhole air anchor device with adaptive capability

ActiveCN119195728BFluid removalOil fieldGravitational sedimentation
The present invention relates to the field of oilfield development, and in particular to a self-adaptive downhole gas anchor comprising: an outer tube for introducing a gas-liquid mixed medium, including a gas anchor liquid inlet for providing a passage for the gas-liquid mixed medium to enter the outer tube; a gas-liquid separation mechanism for separating the gas and liquid in the gas-liquid mixed medium, including a spiral separation assembly for separating the gas and liquid by changing the flow direction of the gas-liquid mixed medium, and an adaptive sedimentation separation assembly disposed below the spiral separation assembly for determining the degree of gravity sedimentation separation of the gas-liquid mixed medium after spiral separation based on the weight of the gas-liquid mixed medium introduced by the outer tube; and an inner tube for discharging liquid after the gas-liquid mixed medium is separated by the gas-liquid separation mechanism. The present invention increases the liquid separation capability of the gas anchor and improves its operating efficiency.
Owner:DAQING OILFIELD CO LTD +1

Natural gas slug flow trapping and defoaming separation integrated device

The invention relates to the technical field of natural gas treatment, in particular to a natural gas slug flow trapping and defoaming separation integrated device which comprises a container shell, a first-stage separation area, a second-stage separation area, a third-stage separation area and a fourth-stage separation area. The first-stage separation area, the second-stage separation area, the third-stage separation area and the fourth-stage separation area are arranged in the container shell, the concept of stage-by-stage separation from coarse separation to fine separation is adopted, and an axial-flow type separation element is designed. The problems of large-liquid-amount slug flow trapping, foam elimination and efficient separation are effectively solved by utilizing the pressure of the raw material gas and through various separation means such as gravity settling, cyclone defoaming, inertia and filtering.
Owner:PETROCHINA CO LTD

Intelligent lubricating gear oil based on electromagnetic rheological technology and preparation process thereof

PendingCN122278536AGravitational sedimentationLubrication
This invention relates to the field of intelligent lubrication materials and tribology, specifically to an intelligent lubricating gear oil based on electromagnetic rheology technology and its preparation process; it comprises a base oil, modified magnetic composite particles, and a functional additive package; the particles are obtained through surface pretreatment of micron-sized carbonyl iron powder, intermediate layer construction, and in-situ grafting of oleophilic and extreme pressure anti-wear monomers, and have a core-shell structure; its core is a high-density polymer molecular brush layer constructed by long-chain monomers, which utilizes steric hindrance and solvation effects to shield the excessively strong van der Waals forces and magnetic dipole interactions between particles; this invention effectively overcomes gravity sedimentation caused by density differences and significantly improves the dispersion stability of gear oil under static and dynamic environments.
Owner:SHENGBAO ROAD PETROCHEMICAL (TIANJIN) CO LTD

An efficient, environmentally friendly and energy-saving raw grain impurity removal device

The present invention discloses a high-efficiency, environmentally friendly and energy-saving raw grain impurity removal device, which includes a feeding and winnowing system, a cylindrical screening system, a vibrating screening system, and a vertical winnowing system connected in sequence; it also includes a gravity sedimentation system and a pulse dust removal system connected in sequence; in the gravity sedimentation system, some light impurity materials and dust that cannot settle follow the return air system back to the vertical winnowing system for secondary vertical winnowing. By adopting the process of winnowing first and then cleaning, the impurity content entering the cleaning system is effectively reduced, especially the content of light and flexible impurities, which can effectively avoid the blockage of the sieve holes on the sieve surface, ensure the stability of the operation efficiency of the sieve surface, and reduce the time and frequency of personnel cleaning the sieve hole blockage. By adopting the structure and process of winnowing + cylindrical screening + vibrating screening + winnowing, the cleaning process is long and the cleaning ability is comprehensive. By adopting the structure and process of circulating winnowing + pulse dust removal, the energy consumption of directly adopting the pulse dust removal structure can be reduced under the condition of meeting the environmental protection requirements.
Owner:SINOGRAIN CHENGDU STORAGE RESEARCH INSTITUTE CO LTD

Solid-liquid separation stirrer

The utility model relates to the technical field of stirrers, and discloses a solid-liquid separation stirrer, which comprises a stirrer and a separator, the separator comprises a separation box, the upper side wall of the separation box is connected with a feed pipe, the right side wall of the separation box is connected with a rotating pipe, the outer side of the rotating pipe is uniformly connected with a plurality of groups of separation blades, and the separation blades are arranged in the separation box. The right side wall of the separation box is connected with a filter screen, the sides, away from the rotating pipe, of the separation blades are attached to the inner wall of the filter screen, a discharging hole is formed in the left side of the separation box, a water outlet hole is formed in the rear side of the separation box, and the right side of the separation box is connected with a second motor. According to the scheme, by arranging the separator, raw materials are driven by the machine to be separated, the problem that traditional gravity settling separation needs long waiting time is solved, the solid-liquid separation efficiency of the raw materials is improved in a centrifugal force and differential speed mode, and the solid-liquid separation efficiency and speed of the raw materials are improved.
Owner:上海丕优材料科技有限公司