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85results about How to "Improve the absorption rate" patented technology
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Environment-friendly type crust leather production method
ActiveCN103060488AEmission reductionCreate pollutionTanning treatmentPre-tanning chemical treatmentChromiumIon
The invention discloses an environment-friendly type crust leather production method, and aims at solving the problems that in a crust leather production method using conventional chrome tanning as basis, plenty of chromium ions are contained in waste water and cannot be effectively processed, plenty of leather wastes with chrome are also generated, and the environment is seriously polluted. The production method comprises the following steps of non-pickling tanning, retanning filling, dyeing fat liquoring and chrome retanning. The method adopts non-pickling non-chrome tanning technology, so solid wastes with the chrome cannot be generated. At the same time, through mutual matching with other procedures, finished leather shrinkage temperature and performance can be effectively improved so as to meet demands of leather production. At the last, the chrome retanning is adopted, only a path of waste water with the chrome is generated, waste water quantity is small, and the waste water is easy to recover and process. Therefore, compared with an existing crust leather production method using a chrome tanning method as basis, cleaning degree is high, the waste water quantity with the chrome can be effectively reduced, and the waste water is convenient to recover and process. At the same time, the leather wastes with the chrome cannot be produced, and the method is environment-friendly.
Owner:四川亭江新材料股份有限公司 +1
Method for improving dyeing fastness of light beige semi-vegetable tanned goat leather
InactiveCN102505055AImprove the absorption rateConsistent colorTanning treatmentPre-tanning chemical treatmentOXALIC ACID DIHYDRATEPulp and paper industry
The invention provides a method for improving the dyeing fastness of light beige semi-vegetable tanned goat leather; the method comprises the following steps of: carrying out group batching, wringing, grass ash tumbling, shaving and trimming on raw skins conforming to the technical requirements according to the traditional conventional process; and carrying out weighing, first washing, degreasing, second washing, oxalic acid treatment, third washing, chromium retanning, fourth washing, neutralization, fifth washing, dye filling, six washing, fat-liquoring and color fixing, and seven washing on trimmed blank skins. A light beige semi-vegetable tanned goat leather dye manufactured by the method is 1 / 3 of that manufactured by a conventional process without using a color fixing agent in consumption, i.e. the consumption is reduced by 2 / 3; and the absorption rate of waste liquid is high, thereby facilitating environmental protection. Manufactured semi-vegetable tanned goat leather finished products have consistent leather surface color, uniform color, full surface coloration, small color difference among pieces and full, pliable, setting-out and non-wrinkled leather body. The method has the outstanding advantage that the perspiration fastness is also improved while the dyeing fastness of the light beige semi-vegetable tanned goat leather is improved.
Owner:JIHUA 3512 LEATHER & GARMENT
Dry and wet two-purpose road sweeper
InactiveCN101349043ASolve the icingSolve the problem of not being able to spray waterRoad cleaningVehicle frameRoad sweeper
The invention relates to a dry-wet dual purpose road sweeper, which comprises a vehicle frame as well as an auxiliary engine, a garbage bin, a suction fan, a chuck and dust removers which are arranged on the vehicle frame, wherein the chuck is arranged at the lower part of the vehicle frame and is connected to a garbage inlet of the garbage bin through a suction tube, the suction fan is connected with an air outlet of the garbage bin through an air duct, an air vent of the suction fan is connected with the dust removers, the auxiliary engine drives the suction fan, the suction fan is a double suction fan which is respectively communicated with the wet type diagonal flow dust removers. The road sweeper remedies the disadvantages that a suction sweeping road sweeper widely used on the market fails to be normally used in winter and is easy to spray ash and fly dust, and a suction road sweeper fails to perform wet operation and has poor sweeping efficiency and high use cost. The dry-wet dual purpose road sweeper uses a technology that the dry operation and the wet operation can both be performed, the design of the double suction fan with ultra-strong suction, and a unique wet type diagonal flow dust removal technology, and is the all-weather road sweeper.
Owner:江苏飞球专用车制造有限公司
Broadband wave absorber and broadband wave absorber array based on resistive film
ActiveCN110190407ABandwidthHigh absorption rateAntennasElectromagnetic compatibilityDielectric substrate
The invention discloses a broadband wave absorber and broadband wave absorber array based on a resistive film. The broadband wave absorber based on the resistive film is composed of a top resistive film layer, an intermediate resistive layer, a bottom metal backboard and two air layers between the three layers, wherein the resistive film layer is composed of a hexagonal dielectric substrate and ahexagonal resistive film ring, and the resistive layer is composed of a hexagonal dielectric substrate and a hexagonal metal ring loaded with resistance. The broadband wave absorber array adopts triangular periodic arrangement, which has better angular stability compared with common quadrilateral periodic arrangement. Compared with the common wave absorber loaded with lumped resistance, the broadband wave absorber has wider wave absorbing bandwidth and wave absorbing rate, thereby having important application prospects in stealth technology, electromagnetic compatibility and radar wave absorbing technology.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Range hood and cooker integrated machine
ActiveCN102012054ANo escapeImprove the absorption rateDomestic stoves or rangesLighting and heating apparatusLow noisePressure generation
The invention discloses a rang hood and cooker integrated machine comprising a machine body, as well as a range hood and a cooker which are arranged on the machine body, wherein the range hood comprises a lampblack absorbing device, a negative pressure generation device and a lampblack exhaust device which are sequentially connected; the lampblack absorbing device comprises an air guide pipe which is arranged on the rear side of a panel of the machine body and a positive pressure generation device which forms a lampblack enveloping surface together with the negative pressure generation device; the positive pressure generation device comprises a fan and a blow pipe connected with the fan; and the blow pipe is provided with a blowing port and arranged on the panel of the machine body, corresponding to the air guide pipe, so that the lampblack enveloping surface is formed between the blowing port and an air sucking port. The invention has the advantages of small size, uniform negative pressure area, high suction rate of lampblack, favorable oil leakage preventing performance, low noise and the like; in addition, the rang hood and cooker integrated machine can be used for thoroughly sucking and exhausting he lampblack and waste gas and separating the lampblack, improves the operation efficiency of the fan and prolongs the cleaning period and the service life of the complete machine.
Owner:浙江优格实业有限公司
No-outer-cover type range hood with randomly-adjusted orientation
InactiveCN102401408ASave spaceReduce noiseDomestic stoves or rangesLighting and heating apparatusControl systemEngineering
The invention relates to a no-outer-cover type range hood with randomly-adjusted orientation, comprising a fan shell with air inlets and an exhaust port, wherein a fan is arranged in the fan shell; the air exhaust outlet at the side edge of the fan shell is connected with an exhaust pipeline; a control system is also arranged under the fan shell which is arranged between a ceiling and a top wall; a connecting pipe is arranged at the air inlet under the fan shell and is connected with an air suctioning pipe after passing through the ceiling downwards; the side wall of the air suctioning pipe is provided with a plurality of oil-smoke suctioning holes; an oil cup is arranged under the air suctioning pipe; and the bottom part of the fan shell is provided with the air inlets which have the same quantity with cooking ranges. In the no-outer-cover type range hood, the pioneering no-outer-cover structure is adopted, so that not only is the space of a kitchen saved, but also the manufacturing cost of the range hood is greatly reduced. Due to random adjustment of the oil-smoke suctioning orientation, the no-outer-cover type range hood is beneficial to suctioning and exhausting oil smoke, has the advantages of simple structure, convenience in installation and use, small volume, low noise and high oil-smoke suctioning rate, and is worth of being vigorously popularized.
Owner:NINGBO OULIN KITCHEN UTENSILS +1
Fan impeller and fan adopting same
ActiveCN107023509ANovel structureCompact structurePump componentsPump installationsImpellerVertex point
Owner:NINGBO FOTILE KITCHEN WARE CO LTD
Method of preparing environment friendly incrassation type nano-composite tanning agent for leather
InactiveCN101509046AImprove the absorption rateIncrease profitTanning treatmentSheep skinMontmorillonite
The invention relates to a method for preparing leather use environment-friendly thickening type nano composite tanning agent which takes trolamine modified maleic anhydride, methacrylic acid and montmorillonite as raw materials, and adopts a load evocating agent method to prepare the leather use environment-friendly thickening type nano composite tanning agent. Raw sheep skin can be thicken by 112% by using the tanning agent, and crust leather can be thicken by 33% after being tanned by 2% of chromium powder, so that one leather can be changed into multiple leathers, thus remarkably increasing profits and ensuring the absorbing rate of chromium to be higher. Therefore, the nano composite tanning agent can improve the profits of leather, and is environment-friendly and has good performance.
Owner:SHAANXI UNIV OF SCI & TECH
Novel environment-friendly acid blue-light red dye applied to furs and synthesis method of dye
ActiveCN104448895ANon-allergenicFull colorMonoazo dyesDyeing processEnvironmental resistanceSynthesis methods
The invention relates to the field of processing processes of animal furs and in particular relates to a novel environment-friendly acid blue-light red dye applied to furs and a synthesis method of the dye. The structural formula of the novel environment-friendly acid blue-light red dye is as shown in the description. The method comprises the following steps: (1) carrying out diazo-reaction; and (2) coupling. The dye can be widely used for dyeing various furs. The blue-light red dye has a series of advantages of high dyeing degree, high net adsorption rate, good compatibility and full color and luster; meanwhile, the dye is free of 24 aromatic hydrocarbons banned by European Union; the dye is environmentally friendly; by tests, the dye is free of sensitization; the safety is ensured.
Owner:BEIJING FANBO CHEM
Bidirectional smoke insulation and heat insulation cooling device
InactiveCN101545652AReduce frequency of useImprove the absorption rateDomestic stoves or rangesLighting and heating apparatusThermal insulationEngineering
A bidirectional smoke insulation and heat insulation cooling device is composed of a crosscurrent fan and an airflow adjusting device locating on an air outlet of the fan, is characterized in that a air curtain airflow direction from the air outlet is adjusted and altered by the adjusting device above the crosscurrent fan air outlet, so as to cooling human body and insulate the kitchen range oil smoke and heat by a same crosscurrent fan. Volume is small, structure is simple, and the device may be mounted on cabinet table top of kitchen range frontal or on the front end of the kitchen range directly; in summer, the device may cool the human body directly, the usage frequency of an air conditioner is reduced, the fully suction ratio of a fume exhauster is improved, and an expensive and contaminative-easily smoke guider is replaced, which improves cookroom circumstance, and is health, energy-saving and environment protection.
Owner:HEFEI BOPU HIGH TECH
Salt-free pickling-free amphoteric polymer chrome-free tanning agent
The invention discloses a salt-free pickling-free amphoteric polymer chrome-free tanning agent which is characterized in that according to the salt-free pickling-free amphoteric polymer chrome-free tanning agent, firstly, organic amine and fatty aldehyde with active alpha-H undergo Mannich reaction, a Mannich base midbody with a formyl group is obtained, and then, after an allyl monomer with the formyl group is generated in the original position of the midbody, the midbody, the allyl monomer with a cation and allyl acid undergo free radical polymerization, and the salt-free pickling-free amphoteric polymer chrome-free agent is obtained. The salt-free pickling-free amphoteric polymer chrome-free tanning agent is a polymer tanning agent containing the formyl group and has certain filling capacity, tanning properties of the salt-free pickling-free amphoteric polymer chrome-free tanning agent are rival with the properties of an existing aldehydes tanning agent, molecular weight is large, when the salt-free pickling-free amphoteric polymer chrome-free tanning agent is in use, a leather blank is free of pickling, salt pollution in the follow-up processes can be eliminated, carboxyl and amino contained by the agent can further prompt absorption to follow-up finishing materials by the leather blank, and the whole quality of a leather is improved. According to preparation of the salt-free pickling-free amphoteric polymer chrome-free tanning agent, air pollution due to raw materials is avoided, chrome and NaCl pollution of a traditional tanning agent is avoided, processes are reduced, silicate consumption is reduced, and cost is reduced.
Owner:SICHUAN UNIV +1
Bi-layer filter structure for cyclone separation
InactiveCN101675873AReduce air flowImprove filtration efficiencySuction filtersFluid fieldCyclonic separation
The invention discloses a bi-layer filter structure for cyclone separation, belonging to dust separator of a dust collector. The bi-layer filter structure of the invention comprises a cone-shaped flattop filter cover evenly provided with filtration pores and a terminal pad which integrally forms a mesopore with the bottom opening thereof, and the other side of the terminal pad integrally forms anannular combination part combined with a motor cavity; the cone-shaped flat top filter cover evenly provided with filtration pores has a bi-layer structure keeping certain space. The invention with the design can change flow field distribution between two layers and can effectively reduce the flow of air which contains dust and enters a filter along tangential direction in cyclone separation space, thus distributing adsorbed air containing substances, such as dust and the like into each filtration pore as much as possible; as a result, dust has enough time to be separated out, thus improvingfiltering efficiency and keeping enough high adsorption rate.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
Low-noise oil smoke extracting device capable of balancing air flow and oil stain cleaning method
InactiveCN103256641ANo driftReduce noiseDomestic stoves or rangesLighting and heating apparatusLow noisePower noise
The invention discloses a low-noise oil smoke extracting device capable of balancing air flow and an oil stain cleaning method. The low-noise oil smoke extracting device comprises an oil smoke guider and a fan, wherein an air inlet and an air outlet are formed in a shell of the oil smoke guider; an air outlet channel is formed in the shell; the air outlet is communicated with the air outlet channel; at least one air hole is formed in the front end surface of the shell; the air outlet channel extends forwards to be near the air hole; the air outlet and the fan are connected through an oil smoke outlet pipeline; the air inlet is connected with an air input pipeline; and the oil smoke guider is arranged at the rear side of a cooking range. According to the low-noise oil smoke extracting device, an air outlet device and an air inlet device are simultaneously arranged on an extractor hood, and therefore, when the upper end of the shell of the extractor hood exhausts air, the lower end of the shell of the extractor hood can immediately supply air to the environment around the cooking range so as to avoid the formation of a negative pressure state of the environment around the cooking rang and consequently oil smoke drifting does not happen; oil smoke can be completely exhausted to clean just by adopting the fan with low rotation speed, big blades and small power; air power noise can not be generated by the fan; and therefore, the noise of the extractor hood caused by the fan is lowered greatly.
Owner:DONGGUAN ZHNXN ELECTRIC
Road sweeper suction nozzle
PendingCN109356070AEquivalent diameter increaseGuaranteed height from the groundRoad cleaningRoad sweeperInhalation
The invention discloses a road sweeper suction nozzle. The road sweeper suction nozzle comprises left suction nozzles, right suction nozzles, suction tubes, air blow pipes, walking wheels and baffles,wherein the air blow pipes are arranged in right rears of the suction tubes, the left suction nozzles are hinged with the right suction nozzles, the upper portions of the left suction nozzles and right suction nozzles are connected with movable connecting rods, the rear portions of the left suction nozzles and right suction nozzles are provided with the walking wheels and fixed brackets, the front portions of the left suction nozzles and right suction nozzles are provided with the baffles respectively, the two sides of the baffles are hinged with suction nozzle seats through two parallel connecting rods respectively, and the middles of the baffles are connected with baffle air cylinders. The road sweeper suction nozzle has the advantages that the air blow pipes are arranged to supplementair for the suction tubes, residual garbage is blown to the suction tubes, thereby greatly increasing the cleanness suction rate and effectively avoiding secondary dust raising; the arranged hinged left and right suction nozzles replace a single width suction nozzle so that the suction nozzles can automatically level on the uneven road surface, and the front ends of the suction nozzles are provided with the liftable baffles so as to improve the equivalent diameter of inhalation and the cleanness suction rate.
Owner:福建环海环保装备股份有限公司
Cooker hood with air curtain
InactiveCN1896603AImprove the absorption rateSimple structureDomestic stoves or rangesLighting and heating apparatusEngineeringCooker
This invention discloses a kind of kitchen ventilator with air curtain. It includes outer casing, kitchen ventilator, electric engine, oil-fumes absorbing switch, oil fume absorbing opening, oil fume passage, smoke outlet and power line. The air curtain fan, air passage, airport, switch and power line are arranged in the said outer casing. The number of air curtain fan can be one or more than one. The airport can be set at left and right sides or left, right and front sides. This invention can increase the oil-fumes absorbing rate.
Owner:宣伯民
Frequency selection wave absorber
The invention belongs to the technical field of microwaves, and particularly relates to a frequency selection wave absorber. The wave absorber structurally comprises a loss layer and a transmission layer from top to bottom, wherein the loss layer comprises a first square ring metal patch, a circular ring metal patch, four rectangular metal patches welded with resistor elements, a first square dielectric plate and a second square ring metal patch; the transmission layer comprises a metal coating, and the metal coating is divided by a square ring gap and four right-angle gaps; and the first square ring metal patch and the rectangular metal patch cover the upper surface of the first square dielectric plate, and the second square ring metal patch covers the lower surface of the first square dielectric plate. The wave absorber has the advantages of being high in wave absorbing rate and low in loss, can be used for improving the stealth capacity of a broadband radar of aviation weaponry and solves the design problem of an airborne radio frequency aperture broadband radar stealth electromagnetic window of a high-stealth aircraft.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
Air vortex type range hood
InactiveCN102200310ARealize no disassembly and washingImprove the absorption rateDomestic stoves or rangesLighting and heating apparatusAbsorption rateEngineering
The invention relates to the field of kitchen smoke ventilator. Aiming at defects of low absorption rate and trouble of oil-filter screen unpicking and washing, the invention discloses an air vortex type range hood The invention is characterized by providing two different suction types: an air vortex type and an adjustable type. And two types of machines, both without an oil-filter screen, have general main members of a power portion and a general electrical principle. An air vortex generator of the air vortex type range hood can generate negative pressure suction effect like natural tornado, and maintain the advantages of a European style smoke ventilator. The adjustable type range hood is set against a wall with a fore rake of 20 DEG, and a large plane circumferential suction inlet can be adjusted freely to a state of near suction or even cover suction. The range hood has a high absorption rate, and a traditional so-called oil screen is replaced by a de-oiling technology to realize zero oil-filter screen and zero unpicking and washing, so as to change household heavy pollution area into a healthy and environmental-friendly place, and to facilitate daily cleaning. In addition, the range hood, which has a similar structure and implementation difficulty to a traditional product, is novel and unique and focuses on real effects. Therefore, the range hood has a substantial popularization value.
Owner:朱宝贵
Method for improving resin performance in suspension polymerization production resin through interpenetrating method
InactiveCN107641166AImprove performanceIncrease lossCation exchanger materialsAnion exchangersCross-linkPolymer science
The invention relates to a method for improving resin comprehensive performances by producing an ion exchange resin framework white ball through an interpenetrating, cross-linking, suspending and polymerizing process, and the specific range involved comprises similar interpenetrating and cross-linking of styrene / divinyl benzene and styrene / divinyl benzene, heterogeneous interpenetrating and cross-linking of styrene / divinyl benzene and divinyl benzene or triallyl isocyanurate as well as heterogeneous interpenetrating and cross-linking of styrene / divinyl benzene and chloroethylene / divinyl benzene. According to the method disclosed by the invention, a white ball (smaller than 0.3 mm) with an unqualified once polymerized ball body is polymerized again under the same condition through secondary polymerization, so that the grain size is increased, and the white ball which meets standard grain size range (greater than 0.3mm-0.8mm); under the special condition, various resins prepared by performing secondary polymerization on a same monomer cross-linking agent of different concentrations can effectively reduce heterogeneity, in the polymerized ball body, of the cross-linking agent.
Owner:JIANGSU JIANYA ENVIRONMENTAL PROTECTION TECH CO LTD
Lower-suction range hood
InactiveCN102022767AImprove oil fume absorption rateFew accessoriesDomestic stoves or rangesLighting and heating apparatusEngineeringSmoke
The invention relates to a lower-suction range hood, comprising a smoke exhaust hood arranged above or at side top of a stove, a suction device arranged below the smoke exhaust hood, a connection passage for connecting the smoke exhaust hood and the suction device and a vent passage connected with an air outlet of the suction device, wherein the suction device is arranged below the stove so that a suction motor is far from ears of cooking staff with relatively small noise, the noise can be smaller if the suction device is arranged in a cabinet below the stove; (2) fewer circuit and less accessories are arranged in the smoke exhaust hood which is easy to clean; (3) the structure is rational, the smoke exhaust hood, the connection passage and the suction device are separately connected with each other, so that the product is convenient to package and transport, the influence to fitment is avoided, the wall cupboard space cannot be occupied and the appearance is beautiful; the connection passage can be composed of a plurality of pipelines so that the change to old kitchen is convenient.
Owner:翁家瑜 +1
Transparent broadband electromagnetic wave absorber based on ITO resistive film
ActiveCN114122738AGood light transmissionHigh resistivityAntennasElectromagnetic wave absorberElectrical resistance and conductance
The invention discloses a transparent broadband electromagnetic wave absorber based on an ITO resistive film, which belongs to the technical field of electromagnetic materials and comprises an upper glass substrate, a lower glass substrate, ITO periodic units etched on the two glass substrates and having different sheet resistance values, and a middle transparent glass substrate, the periodic unit structure is a square ring patch, and the square ring patch is a layer of thin film formed by etching ITO with square resistance on a glass substrate. The middle layer selects glass for impedance matching to achieve the purpose of transparency, ITO with sheet resistance is completely etched on the bottom layer glass substrate, and the bottom layer ITO can be regarded as a metal reflecting plate due to the fact that the sheet resistance of the bottom layer ITO is very small, and the conductivity of the bottom layer ITO is close to that of a perfect metal conductor. The wave absorber realized by the resistive ITO and the glass breaks through the limitation that the traditional wave absorber is opaque and narrow in bandwidth, the application scene is widened, and the wave absorber has important application prospects in the aspects of electromagnetic shielding, cockpits with requirements on light transmittance and the like.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Dual cyclone dust collection structure of suction cleaner dust collection barrel
The invention relates to a dual-cyclone dust collection structure of a dust collection tub of a cleaner, comprising an air inlet which is slantingly arranged at the tub body of a dust collection tub and a turbo-typed fan blade device which is arranged inside the dust collection tub, wherein, the device is formed by a plurality of fan blades which are arranged at the framework of a cylindraceous filter screen; the top and the bottom of the framework of the screen are corresponding round reels and the screen between the top round reel and the bottom round reel takes a shape of cylinder and four fan blades are vertically positioned between the top round reel and the bottom round reel; the upper end of the turbo-typed fan blade device is fixed at a tub cover of the dust collection tub by a card; the interior of the cylindraceous filter screen is communicated with an air outlet duct at the lower part of a split plate. Cyclones generated by air-in and air-out parts of the dust collection tub have even strength and the dual cyclone improves the absorption rate of the cleaner so as to increase centrifugal force of dust in the air, which results in that much more dust is thrown to the wall of the tub and falls along clearance in the margin to the lower part of the tub, thus improving the effect of dust collection.
Owner:LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
Dust collecting barrel with separated part
InactiveCN101596084AGood separation and filtration effectHigh absorption rateSuction filtersEnergy lossAirflow
The invention relates to a dust collecting barrel with a separated part, which comprises a barrel body, a handle, an upper cover, a filter core, a compressed part and a separated part, wherein the barrel body is provided with an air inlet; the handle is connected with the barrel body; the upper cover is connected above the barrel body and is provided with an air outlet in the middle; the compressed part is arranged at the lower part of the barrel body and comprises a fixed baffle plate and a rotating sheet connected with a vertical shaft; the separated part is arranged in the barrel body, combined with the upper edge of the filter core and positioned above the compressed part; and the separated part comprises an air guiding shield and a separated sheet, wherein the air guiding shield is provided with an inner air inlet, and the separated sheet is connected with the lower end of the air guiding shield. In the invention, because the separated part is arranged, the rotating airflow which enters the dust collecting barrel rotates in the separated part, and the rotating airflow is separated and filtered in the rotating process to further prevent a large amount of dust from entering the filter core, thus the separating and filtering effects on dust are good. In addition, because the rotating airflow only rotates in the separated part and can not be in contact with the compressed part, the air speed can not be reduced, the energy can not be consumed, and the absorption ratio of a dust collector is high.
Owner:NANJING LG PANDA APPLIANCES
Four-dimensional invisible wave-absorbing structure and preparation method thereof
InactiveCN112670719ANo need to increase thicknessFlexible regulationCAD circuit designMetal/alloy conductorsFrequency waveHoneycomb
The invention discloses a four-dimensional invisible wave-absorbing structure and a preparation method thereof. The four-dimensional invisible wave-absorbing structure comprises a plurality of honeycomb periodic structure units, wherein electromagnetic periodic structures are arranged on the inner walls of at least part of the honeycomb periodic structure units. According to the wave-absorbing structure, the electromagnetic periodic structure is arranged on the inner wall of the honeycomb hole grid, a wave-absorbing material does not need to be coated while a conductive path is prolonged, and due to the fact that the electromagnetic periodic structure is hidden in the inner wall of the honeycomb hole grid and is prevented from being in direct contact with air, the conditions of falling off, circuit breaking and the like of the electromagnetic periodic structure are prevented. The low-frequency wave absorbing performance can be achieved through the electromagnetic periodic structure, the thickness of a honeycomb does not need to be increased, and the weight of the electromagnetic periodic structure can be ignored compared with that of a traditional coating type material spraying agent. Therefore, the wave-absorbing mechanism has the advantages of being simple and efficient in machining procedure, stable in electromagnetic performance, adjustable, light, thin, small in specific density, high in specific strength and the like.
Owner:SOUTH CHINA UNIV OF TECH
Plate surface dust removal device and using method thereof
ActiveCN112170379ALess residueReduce pollutionDirt cleaningCleaning using gasesEngineeringStructural engineering
The invention discloses a plate surface dust removal device, and relates to the technical field of plate cleaning equipment. The plate surface dust removal device comprises a machine body, the machinebody is arranged on a plane, the machine body comprises a main frame arranged on the plane, a translation module is arranged inside the main frame, and the translation module is fixedly connected with the main frame; a moving frame is arranged on the lower surface of the main frame, connected with the translation module in a matched mode and moves in the extending direction of the main frame through the translation module; a bearing device is arranged below the moving frame and comprises a containing shell, the interior of the containing shell is hollow, the containing shell is located belowthe moving frame, and a gap exists between the containing shell and the moving frame; a dust blowing device is arranged inside the bearing device; and dust suction devices are arranged below the bearing device and evenly distributed on the lower surface of the containing shell in a looping mode, and a space is reserved between the dust suction devices arranged in the looping mode. According to theplate surface dust removal device and a using method thereof, and the problems that in the prior art, chippings on the surface of a plate cannot be effectively removed, and working environment pollution is easily caused by dust are solved.
Owner:东台市盛港新材料科技有限公司
Rotary jet flow blowing-suction type vortex range hood
PendingCN111306595AEfficient aggregationImprove the absorption rateDomestic stoves or rangesLighting and heating apparatusElectric machineEngineering
The invention belongs to the technical field of rotary jet flow blowing-suction type vortex range hoods, and particularly relates to a rotary jet flow blowing-suction type vortex range hood. The rangehood is provided with an annular groove sealing rotary disc driven by a rotary disc driving motor, so that a rotary jet flow upper cover and a rotary jet flow lower cover which are fixedly mounted onthe annular groove sealing rotary disc rotate together; and inlet air is increased in pressure through an air inlet centrifugal fan and discharged into an air inlet flow-equalizing and pressure-equalizing cylinder to be separately guided into a slit jet nozzles to be ejected in the longitudinal lower direction, and guided into a smoke guide jet nozzles to be horizontally ejected in the axis direction, and the tornado air vortex field effect is generated jointly in cooperation with rotary air suction cyclone of a smoke exhaust centrifugal fan in the center. The range hood is capable of rapidlygathering and exhausting lampblack generated in the cooking process, high in suction rate, low in working noise and capable of greatly purifying the kitchen environment, and belongs to the field of kitchen range hood manufacturing.
Owner:柳洪权
Environment-friendly type crust leather production method
ActiveCN103060488BEmission reductionCreate pollutionTanning treatmentPre-tanning chemical treatmentWastewaterChromium
The invention discloses an environment-friendly type crust leather production method, and aims at solving the problems that in a crust leather production method using conventional chrome tanning as basis, plenty of chromium ions are contained in waste water and cannot be effectively processed, plenty of leather wastes with chrome are also generated, and the environment is seriously polluted. The production method comprises the following steps of non-pickling tanning, retanning filling, dyeing fat liquoring and chrome retanning. The method adopts non-pickling non-chrome tanning technology, so solid wastes with the chrome cannot be generated. At the same time, through mutual matching with other procedures, finished leather shrinkage temperature and performance can be effectively improved so as to meet demands of leather production. At the last, the chrome retanning is adopted, only a path of waste water with the chrome is generated, waste water quantity is small, and the waste water is easy to recover and process. Therefore, compared with an existing crust leather production method using a chrome tanning method as basis, cleaning degree is high, the waste water quantity with the chrome can be effectively reduced, and the waste water is convenient to recover and process. At the same time, the leather wastes with the chrome cannot be produced, and the method is environment-friendly.
Owner:四川亭江新材料股份有限公司 +1
Air flow guide for fume used with fume exhaust fan
InactiveCN1987209AImprove the absorption rateReduce power consumptionDomestic stoves or rangesLighting and heating apparatusPositive pressureControl switch
An oil soot stream guide unit for the oil soot extractor is composed of power cord, control switch, motor, fan and wind pipe. It features that an inducing outlet of oil soot is made on the positive-pressure segment of wind pipe and a wind curtain sprayed upward can prevent escape of oil soot.
Owner:宣伯民
A dual frequency metamaterial absorber
ActiveCN104638382BRealize the absorbing effectImprove the absorption rateAntennasDual frequencyMetamaterial absorber
Owner:HARBIN ENG UNIV
Daily maintenance cleaning machine and method for simulated plant grass wall
ActiveCN111069106AImprove cleanlinessPlay the role of hookingCleaning using toolsCleaning using gasesEnvironmental engineeringBiology
The invention relates to a daily maintenance cleaning machine for a simulated plant grass wall. The daily maintenance cleaning machine comprises a movable trolley, a dust removal device and a cleaningdevice, wherein the dust removal device is arranged at the upper end of the movable trolley, and the cleaning device is arranged on the dust removal device. According to the daily maintenance cleaning machine and method for the simulated plant grass wall, the dust removal device and the cleaning device are matched with each other to carry out dust cleaning and flushing treatment on the simulatedplant grass wall, so that the cleaning degree of the simulated plant grass wall is improved, and the dust removal and the flushing can be selected according to different indoor and outdoor requirements.
Owner:NANJING FORESTRY UNIV
Range hood
InactiveCN102183055APrevent proliferationImprove the absorption rateDomestic stoves or rangesLighting and heating apparatusMechanical engineeringPetroleum engineering
The invention discloses a range hood which comprises a shell arranged at the rear side of a cooking bench, wherein an oil fume sucking device is arranged inside the shell, and an oil fume outlet is arranged on the shell; and the range hood is characterized by also comprising an oil fume purifying device communicated with the oil fume sucking device, wherein an air outlet of the oil fume purifying device is communicated with an air duct, the air duct is arranged at the left and the right sides and in front of the cooking bench, and a plurality of air outlets are arranged above the air duct. According to the range hood disclosed by the invention, an air curtain formed by the air duct is adopted to prevent the oil fume from spreading outside, therefore, the oil fume exhausting rate of the range hood can be improved, and the range hood has a simple and reasonable structure, occupies small space, is convenient to install, does not block the sight line of a cook, and is convenient to operate; in addition, the range hood has extremely exquisite and attractive appearance and is extremely applicable to the configuration of the modern and fashionable kitchenware.
Owner:黄助群
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