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33results about How to "Eliminate effective" patented technology

Defoaming stirring barrel for flotation and use method thereof

The invention relates to the technical field of defoaming stirring, and discloses a defoaming stirring barrel for flotation and a using method thereof.The defoaming stirring barrel comprises a round barrel, a mounting frame is fixedly mounted at the top of the round barrel, a driving motor is fixedly mounted at the top of the mounting frame, a rotating shaft is rotatably mounted on the mounting frame, and the rotating shaft penetrates through the mounting frame; the bottom end of the rotating shaft is rotatably connected with the inner wall of the bottom of the barrel, an output shaft of the driving motor is fixedly connected with the rotating shaft, the defoaming device further comprises a defoaming mechanism, the defoaming mechanism comprises a rectangular groove formed in the rotating shaft, and the rectangular groove is slidably sleeved with a circular sliding plate. In the rotating process of ascending and descending of the defoaming teeth, bubbles on the slurry surface and bubbles in vortexes including slurry can be effectively eliminated, the foam eliminating effect is improved, and the situation that due to the fact that the bubbles are concentrated at the vortexes and on the liquid surface, the bubbles overflow too much and concentrate is discharged out of a barrel, waste is caused, and the concentrate sinks again is avoided.
Owner:YANTAI JINPENG MINING MASCH CO LTD

Defoaming device for sulfur foam tank and use method of defoaming device

The invention discloses a sulfur foam tank defoaming device and a use method thereof, and relates to the technical field of desulfurization and defoaming. Comprising an open cylinder, a lifting cover disc is slidably arranged at the top in the open cylinder, a hollow sleeve is fixedly arranged in the middle of the lifting cover disc, and a hollow shaft is rotatably inserted into the hollow sleeve; three planetary transverse shafts are rotatably inserted into the bottom of the hollow shaft, and a plurality of first stirring paddles are fixedly arranged on the outer section parts of the planetary transverse shafts; a center shaft is rotatably inserted into the hollow shaft, and a three-jaw disc is fixedly arranged at the bottom end of the center shaft. A planetary vertical shaft is rotatably inserted into the end part of the three-jaw disc; and a plurality of second stirring paddles are fixedly arranged at the bottom section part of the planetary vertical shaft. Sulfur foams are eliminated in a stirring mode, so that the treatment process of the sulfur foams is more controllable, the retention time of the sulfur foams in the treatment process can be shortened, the defoaming treatment effect is further improved, and high adaptability and flexibility are achieved.
Owner:山西鹏飞焦化绿色发展有限公司

Dustproof conveying device for limestone processing

The utility model relates to the technical field of limestone processing and transportation, and discloses a dustproof conveying device for limestone processing, which comprises a workbench, a processing cover is fixedly connected to the top end of the workbench, an air bellow shell is fixedly connected to the left side of the top end of the processing cover, and a controller is fixedly connected to the front end of the processing cover. The right end of the air bellow shell is fixedly connected with and penetrates through a connecting pipe, a plurality of suction fans are installed at the left end of the air bellow shell, an electric conveying table is installed on the inner wall of the workbench, the inner wall of the air bellow shell is connected with a dust filtering net through a dust suction assembly, and a second motor is fixedly connected to the top end of the inner wall of the workbench. The top end of the machining cover is connected with a first motor through a discharging assembly. According to the limestone feeding device, limestone in the feeding hopper is intermittently fed, dust is prevented from being generated when a large amount of limestone is fed, the dust collection angle of the dust collection hopper is adjusted, the angle of the dust collection hopper is adjusted, and the dust collection hopper is accurately positioned at the source position where dust is generated.
Owner:YISHUI ZHIYUAN BUILDING MATERIALS CO LTD

Damping device of wind driven generator base

The utility model discloses a wind driven generator base damping device which comprises an installation plate, an outer cylinder shell and an inner cylinder shell, an outer damper is fixedly installed on the upper surface of the installation plate, the outer cylinder shell is fixedly installed at the floating end of the outer damper, and the inner cylinder shell is installed in the outer cylinder shell in a sliding mode. An inner damper is fixedly installed on the inner top face of the outer barrel shell, the floating end of the inner damper abuts against the outer edge of the lower end of the inner barrel, the inner damper is sleeved with a spring, the upper end of the spring is attached to the inner top face of the outer barrel, and the lower end of the spring is attached to the outer edge of the lower end of the inner barrel shell. The outer barrel shell and the outer damper are combined to absorb and digest torsion of the downward pressing part, the inner damper is matched with the spring to absorb and digest torsion of the upward pulling part, the inner damper and the spring are matched with each other, torque and vibration in the base swinging process are effectively eliminated and relieved, and therefore the service life is prolonged.
Owner:LIAONING COSCO POWER CONSTR ENG CO LTD +1

Root irrigation device for pest control in pod pepper planting

The utility model relates to the technical field of pod pepper planting devices, in particular to a root irrigation device for controlling plant diseases and insect pests in pod pepper planting, and solves the technical problems that in the prior art, root irrigation in an existing mode can only eliminate pests at the roots of the earth surface of peppers and cannot effectively eliminate diseases and pests at the root ends below a soil layer, and the root irrigation cost is low. The problems that the pod pepper quality is low and the practicability of the device is reduced due to the fact that the pod pepper is not high in disease and pest prevention efficiency are solved. The root irrigation device comprises a bottom plate, a through groove is formed in one side of the top of the bottom plate, a water tank is fixedly installed on one side of the top of the bottom plate, a water storage pipe is arranged on one side of the water tank, the water tank is connected with a conveying pipe communicated with the interior of the water storage pipe, and a plurality of nozzles are fixedly installed on one side of the water storage pipe in a linear array mode. According to the device, pests in the deep soil layer of the pod peppers are effectively eliminated, the workload of workers and the use cost are reduced, and the practicability of the device is improved.
Owner:SICHUAN YUMIN AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD

Grape puree heat treatment time control device and sterilization process thereof

The invention discloses a grape puree heat treatment time control device and a sterilization process thereof, and relates to the technical field of grape puree heat treatment.The grape puree heat treatment time control device comprises an operation table, a preheating stirring bin is fixedly connected into the operation table, the outer surface of the preheating stirring bin fixedly communicates with a puree feeding port, and the inner wall of the preheating stirring bin is slidably connected with a supporting sliding disc; the middle part of the supporting sliding disc is fixedly connected with a connecting fixed shaft, and the device further comprises a reciprocating pressing mechanism, a multifunctional stirring and cleaning mechanism and a height-adjustable protection mechanism, and the multifunctional stirring and cleaning mechanism is arranged, so that the uniform distribution of grape puree in the stirring barrel can be ensured, the temperature gradient is reduced, and the heat is more quickly transferred into the whole grape puree; compared with stirring in the prior art, the raw materials can be prevented from forming caking or a thermal resistance layer on the barrel wall by cleaning and scraping the inner wall of the stirring barrel, the heat transfer efficiency is further improved, the preheating time is shortened, and the production efficiency is improved.
Owner:TURPAN SILK ROAD PEARL AGRI BIOTECHNOLOGY CO LTD

Fireproof sound insulation sponge

The utility model relates to the field of sponges, in particular to a fireproof sound insulation sponge, which comprises a sponge base layer, a sound insulation structure is adhered to the surface of the sponge base layer, the sound insulation structure consists of a sound absorption layer and a sound attenuation layer, sound absorption bulges distributed at intervals are formed on the lower surface of the sound absorption layer, and a sound absorption groove is formed between every two adjacent sound absorption bulges. The surface of the sound absorption layer is provided with vertically-communicated sound absorption holes, the surface of the sound attenuation layer is provided with sound attenuation grooves matched with the sound absorption protrusions, a sound attenuation block matched with the sound absorption grooves in an embedded mode is formed between every two adjacent sound attenuation grooves, the lower surface of the sponge base layer is bonded with a flame-retardant layer through a sound insulation layer, and the surface of the flame-retardant layer is coated with a fireproof agent coating. Noise is reflected and consumed between the sound absorption layer and the noise reduction layer, so that the purpose of reducing the noise is achieved, the sound insulation and noise reduction effect is further improved, the fire retardant coating coated on the surface of the flame-retardant layer forms a flame-retardant fireproof protective layer, and the use safety is improved.
Owner:DONGGUAN WENDA ELECTRONICS CO LTD

A method for planarizing epitaxial diamond semiconductor

The application provides a preparation method of a flat epitaxial diamond semiconductor and relates to the technical field of diamond semiconductor preparation. The preparation method comprises the following steps: cleaning a microwave plasma device chamber, pretreating a single crystal diamond substrate, etching the single crystal diamond substrate and preparing a hydrogen-terminated diamond semiconductor, wherein a magnetic field generated by a magnetic excitation coil is used to constrain the microwave plasma in the microwave vapor deposition device, so that carbon atoms are uniformly and rapidly deposited on the single crystal diamond substrate, and finally, a single crystal diamond epitaxial layer with a flat surface is obtained. The preparation method of the application can synergistically optimize the carrier mobility, surface density and square resistance of the hydrogen-terminated diamond semiconductor, is simple and easy to operate, has low cost and low energy consumption, is high in efficiency, and is beneficial to industrial large-scale production and popularization.
Owner:UNIV OF SCI & TECH BEIJING

Anti-static heat-insulation edgeless environment-friendly floor

The utility model discloses an anti-static heat-insulation edgeless environment-friendly floor, which relates to the technical field of anti-static heat-insulation floors and comprises a steel plate, the top of the steel plate is poured with a tensile steel plate and a cold-rolled hard plate by filling a cement layer, and one side of the steel plate is provided with a rectangular groove; a plurality of protruding parts are arranged in the rectangular groove, and the protruding parts are arranged in a semicircular shape. A groove is formed in the bottom of the lug boss in an opening manner; a filling cement layer is arranged between the steel plate and the tensile steel plate; a matching groove matched with the lug boss is formed in one side, close to the steel plate, of the filling cement layer; when the floor is used, the floor body, the steel plate, the cold-rolled hard plate and the tensile steel plate are effectively poured through the filling cement layer, so that the floor body has high bearing capacity, and during pouring, the protruding parts in the grooves in the steel plate and the matched grooves in the bottom of the filling cement layer increase the contact area, and a higher bonding effect is achieved.
Owner:SHANDONG EPL DECORATION MATERIAL CO LTD

Active elimination system for harmful gas in workplace

The invention relates to the technical field of harmful gas treatment, in particular to a system for actively eliminating harmful gas in a working place. Comprising a lower barrel, a reaction barrel is concentrically fixed to the upper end of the lower barrel, an upper barrel is concentrically fixed to the upper end of the reaction barrel, the diameter of the reaction barrel is larger than that of the upper barrel, and the upper end of the upper barrel is fixedly communicated with an air pump; the connecting rod is in sliding sealing connection with the upper end of the reaction cylinder, the lower end of the connecting rod is provided with a valve plate assembly, the valve plate assembly is in sliding sealing connection with the reaction cylinder, the valve plate assembly can be rotationally opened and is communicated with the reaction cylinder part above the valve plate assembly and the reaction cylinder part below the valve plate assembly, and the lower end of the upper cylinder is fixedly communicated with a liquid inlet pipe. According to the active harmful gas eliminating system, harmful gas in a working place can be treated for three times, and the harmful gas can be effectively eliminated.
Owner:SHENZHEN SHIHE SECURITY TECH CONSULTING CO LTD

A preparation method of modified polyferric sulfate for treating industrial wastewater

The invention discloses a preparation method of modified polyferric sulfate for treating industrial wastewater, and belongs to the technical field of industrial wastewater treatment. Ferric sulfate is dissolved in distilled water by stirring, and sodium hydroxide aqueous solution is slowly added at 20°C for aging to obtain polyferric sulfate; modified polyacrylamide is prepared into polyacrylamide aqueous solution; the obtained polyferric sulfate and the obtained polyacrylamide aqueous solution are fully stirred to mix uniformly to prepare modified polyferric sulfate. There is a chemical reaction between the polyacrylamide and the auxiliary agent in the modified polyacrylamide of the present invention, and the auxiliary agent contains a quaternary ammonium salt structure, and the modified polyferric sulfate of the present invention is obtained by mixing modified polyacrylamide and polyferric sulfate. Therefore, the use of the modified polyferric sulfate of the present invention can not only improve the removal rate of chemical oxygen demand, suspended matter and other harmful impurities in industrial wastewater, but also effectively eliminate pathogenic bacteria in industrial wastewater to avoid health hazards.
Owner:HENGYANG JIANHENG IND DEV

Interlayer multiple suppression method, system, equipment and medium

The invention belongs to the field of oil-gas exploration, and relates to an interlayer multiple suppression method, system and device and a medium. The method comprises the following steps: acquiring actual profile data; and data above the strong reflection layer in the actual profile data are cut off to obtain cut-off profile data, so that the cut-off profile data meet the requirements of 0D-SRME. The 0D-SRME is combined with the cut profile data for prediction to obtain the predicted multiples, and the prediction precision of the multiples is high. And adaptively subtracting the predicted multiples from the actual profile data by using a least square method to obtain profile data without the multiples. By applying 0D-SRME, multiples and interlayer multiples are effectively suppressed and eliminated, effective signals of seismic data are recovered, counterfeit removal and true storage are achieved, the imaging quality of a land ultra-deep seismic section is scientifically and reasonably improved, the multiple prediction precision is high, the suppression effect is good, the seismic imaging reliability is improved, and true underground geological information is more accurately provided.
Owner:PETROCHINA CO LTD

Deodorizing sanitary ball based on photocuring as well as preparation method and application of deodorizing sanitary ball

PendingCN121987838AEfficient deodorizationImprove deodorizationDeodrantsPolymer scienceAcrylate ester
The invention provides a photo-curing-based deodorizing sanitary ball as well as a preparation method and application thereof, and the sanitary ball comprises the following components in parts by weight: 35-80 parts of an acrylate prepolymer and a reactive diluent, 5-30 parts of a solid organic active matter, 3-20 parts of an MOF catalytic filler, 2-15 parts of a microencapsulated aromatic and 0.5-8 parts of an auxiliary agent. According to the invention, an acrylate prepolymer system forms a high-strength and high-crosslinking three-dimensional network skeleton through photopolymerization, so that the water washing resistance and the structural durability are remarkably improved, and the problem that a traditional material is easy to disintegrate is solved; the normal-temperature photocuring process is adopted, damage of high temperature to thermosensitive components is avoided, multiple effects of catalysis, neutralization and slow release can be achieved by adding the solid organic active matter, the MOF catalytic filler and the microencapsulation aromatic into the sanitary ball, efficient and lasting deodorization is guaranteed, and meanwhile the service life of the product is prolonged.
Owner:HUNAN NUOYI NEW MATERIALS CO LTD

Multi-channel multi-stage circulation CO elimination system and elimination method

The invention discloses a multi-channel multi-stage circulating CO eliminating system and eliminating method. The system is characterized in that a smoke dust filtering and dehumidifying cabin, a multi-stage CO eliminating cabin and a drainage device are connected in sequence; a flow equalizing plate, a particle filter and an air dehumidification module are sequentially arranged in the smoke dust filtering and dehumidifying cabin from left to right, a gas sensor and a first CO sensor are installed on the air inlet side, a second CO sensor is installed on the air outlet side, and a first air volume control valve and a first exhaust fan are assembled on the upper portion of the air outlet side of the smoke dust filtering and dehumidifying cabin. The multi-stage CO eliminating cabin is divided into an airflow circulating cavity and a CO eliminating cavity, a second exhaust fan, a heating assembly and a temperature sensor are arranged in the airflow circulating cavity, and a multi-stage CO eliminating assembly and a third CO sensor are arranged in the CO eliminating cavity; and a fan is arranged in the drainage device. The method comprises the following steps: providing drainage negative pressure by using the fan, sequentially carrying out filtering dry treatment on the airflow, and effectively eliminating CO in the airflow in a triple elimination mode. The system and the method can effectively eliminate CO in the gas flow.
Owner:CHINA UNIV OF MINING & TECH

Preparation method of adsorbing material for efficiently adsorbing HIV (Human Immunodeficiency Virus) and adsorbing material

The invention provides a preparation method of an adsorption material capable of efficiently adsorbing HIV viruses and the adsorption material, and belongs to the technical field of adsorption materials.The preparation method comprises the following steps that CA is added into a solution containing acetone and dimethyl sulfoxide under stirring, stirring continues to enable CA to be completely dissolved, and a CA solution is obtained; adding MIL-125 (Ti) into the CA solution, stirring, and further performing ultrasonic dispersion, so that the MIL-125 (Ti) is uniformly dispersed into the CA solution; water is used as a precipitation bath, the obtained solution is dropwise added into the precipitation bath, and the CA / MIL-125 (Ti) composite microspheres are obtained through phase inversion. The CA / MIL-125 (Ti) composite microspheres prepared by the invention have the advantages of multi-stage adsorption sites, excellent adsorption performance, good blood compatibility and high mechanical strength.
Owner:NANKAI UNIV +1

Biological bait disease prevention and control and multi-element nutrition fortification method for blue crab breeding

The invention discloses a biological bait disease control and multi-element nutrient enrichment method for blue crab fry, which is applied to biological bait from zoeae to juvenile crabs of blue crab fry, and the technical scheme is characterized by comprising disease control and multi-element nutrient enrichment of rotifer and disease control and multi-element nutrient enrichment of artemia nauplii. According to the method, through multiple times of disinfection and multi-element nutrient enrichment of living body biological bait, especially rotifer and artemia nauplii, the situation that the juvenile crabs suffer from diseases due to the fact that the juvenile crabs prey on the biological bait with germs is prevented, meanwhile, according to the growth and development requirements of the juvenile crabs, nutrient substances in the biological bait are specialized, and good growth and development of the juvenile crabs are guaranteed.
Owner:ZHEJIANG MARICULTURE RES INST

Meal heat preservation device for school meal supply

The utility model discloses a meal heat preservation device for meal supply in schools, and relates to the technical field of meal heat preservation, the meal heat preservation device comprises a box body and a heat preservation mechanism, through the arrangement of the heat preservation mechanism, during use, a water suction pump pumps a water source through a water suction pipe, and the water source is filled into a heat preservation layer through a water injection pipe; the hot water pipe at the bottom of the heat preservation layer can quickly and uniformly distribute heat in the whole device, the heating pipe starts to work to heat the injected water to form a stable heat source, the control assembly can regulate and control the internal water temperature and the meal temperature, so that the internal water temperature and the meal temperature are always kept in a range suitable for direct eating, and the freshness and the taste of the meal are ensured; after the device is used, water in the device flows through the filter screen through the drain pipe and enters the collecting bin to be stored, so that a worker can treat the water conveniently, the filter screen can effectively capture food residues and other fine particles, the impurities are prevented from entering a subsequent wastewater treatment link, manual drainage is not needed, and the device is convenient, rapid, time-saving and labor-saving.
Owner:SHANDONG YUHAO HUITAI CATERING SERVICE CO LTD

Method and device for processing road data of CAD drawing, and non-volatile storage medium

The present application discloses a method and device for processing road data of a CAD drawing, and a non-volatile storage medium. The method comprises: converting the format of the road data of the CAD drawing from a layer format to an image format to obtain a road image; performing fuzzy processing on the road image to obtain a processed road image; converting the format of the processed road image from an image format to a layer format to obtain main road data, which is the road data after eliminating interference data. The present application solves the technical problem that the existing geometric processing method is used to eliminate interference data of CAD road drawings, and there is erroneous processing.
Owner:HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD

Biomass combustion particle production screening device

The utility model discloses a biomass combustion particle production screening device, relates to the technical field of screening equipment, and solves the technical problems that air supply, dust removal and mote impurity elimination cannot be carried out in the screening process in the existing technical scheme, the biomass combustion particle production screening device comprises a main base, and a stand column is fixedly installed on the upper wall face of the main base. A main machine box is fixedly installed on the stand column, a screening barrel is rotatably installed in the main machine box, and a wind power pre-screening structure is arranged above the screening barrel. Through cooperative operation of the wind power pre-screening structure and the dust removal and air supply structure, air supply and dust removal are achieved in the screening process, and tiny dust impurities are effectively eliminated; due to the upper and lower throwing parts of the wind power pre-screening structure, the materials are dispersed more uniformly, and the pre-screening effect is better; and an air supply fan, an air filtering plate and a resistance heating wire in the clean air supply structure can blow away and filter tiny dust, meanwhile, air is heated, screening is prevented from being affected by moisture, and the purity of finished product particles is improved.
Owner:LIAONING HUAJU NEW ENERGY TECH CO LTD

Photocatalyst mariculture pipeline type ultraviolet disinfection device

The utility model discloses a photocatalyst mariculture pipeline type ultraviolet disinfection device which comprises an electric control cabinet and a water treatment system, the water treatment system comprises a water pump, a flow regulating valve, a filter, an electromagnetic flowmeter and an ultraviolet water disinfection device, an ultraviolet lamp tube, a photocatalyst cage body, an aeration pipe, a heating pipe and a heating probe are arranged in the ultraviolet water disinfection device, the electromagnetic flowmeter is electrically connected with the electric control cabinet, a temperature control switch and an ultraviolet control unit are arranged in the electric control cabinet, and the ultraviolet control unit is electrically connected with the electromagnetic flowmeter. The power of the ultraviolet lamp tube is automatically adjusted according to the water flow, a touchable display screen is arranged on the outward surface of the electric control cabinet, the water flow recorded by the electromagnetic flowmeter and the power of the ultraviolet lamp tube can be displayed, and the temperature in the ultraviolet water disinfection device can be displayed and adjusted; the electric control cabinet and the water treatment system are arranged on the bottom frame, and universal wheels capable of braking are mounted below the bottom frame. The device can efficiently decompose bacterial viruses and organic substances in seawater, is environment-friendly and non-toxic, and is convenient for workers to operate as the electric control cabinet is provided with the display screen.
Owner:GUANGXI ACAD OF SCI +2

Sensor unit and system

InactiveEP4339552A4Improve detection reliabilityeliminating external disturbances of magnetismElectric/magnetic position measurementsUsing electrical means
A vehicle system (1S) includes a sensor unit (1) including magnetic sensors (Cn) for detecting a magnetic marker and non-contact displacement sensors (15) which measure a displacement relative to a road surface where the magnetic marker is laid, a processing circuit which performs detection process for detecting the magnetic marker by processing a magnetic measurement value by the plurality of magnetic sensors (Cn), and a switching circuit (103) which switches the detection process in accordance with displacement measurement values by the non-contact displacement sensors (15). By switching the detection process in accordance with the displacement measurement values by the non-contact displacement sensors (15), the magnetic marker can be detected with high reliability.
Owner:AICHI STEEL CORP

Intelligent interception device and method for rapid elimination of carbon monoxide in coal mines

ActiveCN116943417BQuick eliminationEliminate effectiveMining devicesGas treatmentProcess engineeringMechanical engineering
The present invention discloses an intelligent interception device for rapidly eliminating carbon monoxide in a coal mine and a method for using the device. The device comprises a connecting component, a spraying component and a slide rail. The spraying component is installed on the slide rail through the connecting component. The connecting component can drive the spraying component to move synchronously along the extension direction of the slide rail. The spraying component is used to spray medicine to eliminate CO. The method comprises detecting the CO concentration in the tunnel through a sensor, the sensor transmits the CO concentration signal to a controller, and then controlling the spraying component to move in the tunnel along the extension direction of the slide rail and spray medicine through the controller to eliminate CO at different positions in the tunnel. The intelligent interception device for rapidly eliminating carbon monoxide in a coal mine according to the embodiment of the present invention can eliminate CO quickly, efficiently and intelligently.
Owner:HUATING COAL GRP CO LTD

Electrified diesel engine post-treatment catalytic oxidation system and application thereof

The invention discloses an electrified diesel engine post-treatment catalytic oxidation system and application thereof, a hollow insulating cylinder with openings at two ends is provided, a conductive catalyst, foam alloy support sheets and an electrode are arranged in the insulating cylinder, the conductive catalyst is filled between the two foam alloy support sheets, and each foam alloy support sheet is connected with the electrode. The electrification process of the reaction system is used for driving the catalytic oxidation reaction, low-temperature efficient oxidation of the diesel engine tail gas can be achieved without additionally heating a catalyst or reaction gas, energy consumption is greatly reduced, system composition and catalyst preparation are simple, and cost is low. And the efficient elimination and conversion of pollutants can be met under the conditions of cold start and low-speed and low-load operation of the engine, and wide application prospects are achieved.
Owner:UNIV OF JINAN

Oily wastewater demulsifier and preparation process thereof

The invention discloses an oil-containing wastewater demulsifier and a preparation process thereof.The oil-containing wastewater demulsifier comprises a component A, a component B and a component C. The component A is sodium dodecyl benzene sulfonate, the component B is ethylenediaminetetraacetic acid, the component C is sodium hydroxide, polyvinyl alcohol and a cross-linking agent, the sodium dodecyl benzene sulfonate is used for conducting reverse-phase treatment on foam of oil-containing wastewater, and the cross-linking agent is used for conducting cross-linking treatment on the foam of the oil-containing wastewater. The ethylenediamine tetraacetic acid can increase the viscosity of a solution, can promote separation between oily substances and water molecules in foams, enables the foams in the oil-containing wastewater to be broken, can promote bonding among the water molecules, and can promote foam degradation and layering of the oily substances and water, so that the blocking effect of the foams in the oil-containing wastewater on the wastewater treatment agent is solved; after the sodium hydroxide is added, charges on the surfaces of the oil drops change, and the polyvinyl alcohol interacts with the surfaces of the oil drops through hydroxyl groups on molecular chains of the polyvinyl alcohol, so that electrostatic repulsion among the oil drops can be reduced, the oil drops are gathered, and the oil-water separation efficiency is improved.
Owner:SUZHOU SENNAS ENVIRONMENTAL TECH CO LTD

Method for eliminating heterogeneous alloy cracks based on bionic structure

The invention discloses a method for eliminating a heterogeneous alloy crack based on a bionic structure, and relates to the technical field of additive manufacturing, and the method comprises the following steps: step 1, obtaining the material type and density distribution information of a heterogeneous alloy at the crack, and adopting a bionic heterostructure with corresponding parameters; 2, the crack size is obtained, a bionic heterostructure three-dimensional model used for eliminating cracks is generated in combination with bionic heterostructure parameters, printing pretreatment is conducted, and layered contour data and a deposition working path are generated; 3, according to the generated layered contour data and the deposition working path, corresponding metal materials are conveyed in real time, directional energy deposition forming is carried out layer by layer, and the original crack position is repaired to be an intact surface with a bionic heterostructure; after the crack is eliminated by adopting the method, the crack can be effectively inhibited from continuously extending towards other directions, meanwhile, the surface strength of the material can be enhanced to a certain extent, and the problem of cracking of heterogeneous alloy manufactured by laser cladding can be well solved.
Owner:JILIN UNIVERSITY

High-precision and high-efficiency grinding wheel for titanium alloy and preparation method thereof

The application discloses a high-precision and high-efficiency grinding titanium alloy ceramic grinding wheel and a preparation method thereof. The high-precision and high-efficiency grinding titanium alloy ceramic grinding wheel comprises a rough grinding wheel and a fine grinding wheel, and the rough grinding wheel and the fine grinding wheel are both made of green silicon carbide and a ceramic binder. In the rough grinding wheel, the green silicon carbide accounts for 82-90 wt%, and the ceramic binder accounts for 10-18 wt%. The ceramic binder is composed of clay 25-30%, feldspar 35-40%, borosilicate glass 25-30%, lithium carbonate 0.5-1%, talc powder 2.5-5%, bentonite 1.5-2.8% and dextrin powder 2-4.5%. In the fine grinding wheel, the green silicon carbide accounts for 88-92 wt%, and the ceramic binder accounts for 8-12 wt%. The ceramic binder is composed of clay 23-35%, feldspar 29-46%, borosilicate glass 21-32%, talc powder 2-3%, lithium carbonate 0.3-0.6%, dextrin powder 1.5-2.4% and bentonite 1.2-1.8%.
Owner:BAIGE ABRASIVES CO LTD

Medical sewage disinfection device

The utility model relates to the technical field of wastewater treatment, in particular to a medical sewage disinfection device which comprises a rack, a control module is arranged at the upper end of the rack, a disinfection module is arranged at the lower end of the rack, the disinfection module comprises an ultraviolet disinfection assembly and a high-temperature disinfection assembly, and the ultraviolet disinfection assembly is connected with the high-temperature disinfection assembly; a water inlet pipe is arranged at one end of the ultraviolet disinfection assembly, one end of the water inlet pipe extends out of the rack, a water outlet pipe is arranged at one end of the high-temperature disinfection assembly, and one end of the water outlet pipe extends out of the rack; the water inlet pipe is used for introducing sewage; according to the utility model, double disinfection is adopted, and besides the ultraviolet disinfection assembly, the device is also provided with the high-temperature disinfection assembly. The sewage subjected to ultraviolet disinfection enters the high-temperature disinfection assembly, and secondary disinfection treatment is performed on the sewage under the action of high temperature. And the double-disinfection design can improve the disinfection effect.
Owner:DONGGUAN LANLONG ENVIRONMENTAL ENG CO LTD

A kind of preparation method of 8-bromophylline

The invention discloses a method for preparing 8-bromophylline, and belongs to the technical field of chemical synthesis. The method for preparing 8-bromophylline of the invention does not use liquid bromine but uses N-bromosuccinimide as a bromination reagent, and at the same time relies on a special dispersion environment to significantly reduce the probability of generating an impurity such as 8-chlorophylline or other impurities in the reaction, and the product purity is high; the preparation method is efficient and simple, and the yield can reach more than 50%.
Owner:GUANGDONG SCI FINDER PHARMA TECH CO LTD +1

Multi-module cooperative rain removal method and system for rainy day vehicle detection

The invention discloses a multi-module cooperative rain removal method and system for rainy day vehicle detection. Rainy images input into the multi-module cooperative rain removal method are given, original noise filtering is completed through a convolutional layer, a progressive information sensing module is constructed, the progressive information sensing module is used for enriching extraction of spatial details and transmitting information with high priority, and a feature # imgabs0 # is output; the feature # imgabs1 # is reduced to a low resolution step by step in a coding unit through down-sampling, is mapped to an original high resolution by a decoding unit after being processed by an intermediate layer, and outputs a feature # imgabs2 #; the feature # imgabs3 is mapped by a 3 * 3 convolutional layer to generate a residual image, and the residual image is added to the # imgabs4 to obtain a final rain removal result.
Owner:CHANGAN UNIV +1

Device for purifying ozone and recovering oxygen

The invention relates to the technical field of environment monitoring, in particular to a device for purifying ozone and recycling oxygen, which comprises a metal shell serving as an external protective layer of the whole device, and an air inlet is formed in one side of the metal shell. An air pump, a heating device and an ozone catalyst-loaded oxygen molecular sieve are arranged in the metal shell in the horizontal direction, the air inlet, the air pump, the heating device and the ozone catalyst-loaded oxygen molecular sieve are sequentially communicated, and the ozone catalyst-loaded oxygen molecular sieve is used for rapidly decomposing ozone. The ozone decomposition catalyst is loaded on the oxygen molecular sieve, indoor air is circularly introduced into the heating device through the air pump, ozone in the indoor air can be continuously removed and converted into oxygen to be stored, and more efficient elimination of ozone is achieved; no waste is generated in the ozone eliminating process, and therefore the dual purposes of environmental protection and resource recovery are achieved.
Owner:KUNMING UNIV OF SCI & TECH