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89results about How to "Chieve protective" patented technology

Method of recycling valuable metals from arsenic-containing soot

The invention relates to a method of recycling valuable metals from arsenic-containing soot. The method comprises the following steps: (1) mixing acidic wastewater with white soot, controlling the pH value to 2.5-3.0, performing acid leaching at a temperature of 70-80 DEG C, and filtering to obtain leachate and lead slag; (2) replacing indium for the leachate by using zinc powder, and filtering to obtain indium slag; (3) performing rotational-flow electrodeposition arsenic removal and zinc removal on filtrate in sequence to obtain arsenic slag and zinc slag. The method disclosed by the invention can be used for purifying the acidic wastewater to reach a condition for recycling the acidic wastewater to a smelting acid manufacturing and purifying section, so that the treated acidic wastewater can be directly returned to the acid manufacturing and purifying section, and therefore, the gypsum slag is completely removed to truly achieve the purpose of zero emission. Meanwhile, the method disclosed by the invention can also be used for achieving the treatment of white soot and recycling the valuable metals, so that environmental protection and resource comprehensive utilization are achieved.
Owner:五矿铜业(湖南)有限公司 +3

Efficient condition privacy protection and security authentication method in internet of vehicles

The invention discloses an efficient condition privacy protection and security authentication method in an internet of vehicles. The efficient condition privacy protection and security authentication method comprises the following steps of: system initialization, generation of pseudonym identities and signature private keys of vehicles, signing and authentication of a message and tracing of real identities of the vehicles. The vehicles carry out cooperative communication with surrounding vehicles and roadside units deployed at both sides of a road by on-board units assembled on the vehicles, driving security of the vehicles can be effectively improved, and vehicle users can more conveniently and rapidly acquire related traffic services. The efficient condition privacy protection and security authentication method disclosed by the invention not only can meet security requirements in the internet of vehicles, but also optimizes the computing process of signature generation and verification in the communication. The efficient condition privacy protection and security authentication method is greatly improved on the aspect of efficiency of computing cost, communication cost and the like, and is more applicable to communication and application in the internet of vehicles.
Owner:ANHUI UNIVERSITY

Method for preparing multi-layer composite functional surgical dressing

The invention relates to a method for preparing a multi-layer composite functional surgical dressing. The method comprises the following steps: respectively and independently carding the fiber layers comprising a functional layer which is formed by mixing chitosan fiber or chitosan fiber and viscose and is directly contacted with the skin, a water-absorbing layer which is made of viscose and has high liquid absorption performance and a protective layer which is formed by mixing the viscose and polyester fiber and has the supporting and protecting functions so as to form a net, manufacturing a three-layer laminate with an upper functional layer, a middle water-absorbing layer and a lower protective layer by employing a water jet strengthening technology, coating a waterproof agent on the protective layer of the three-layer laminate to form a waterproof layer, and finally rolling to obtain the surgical dressing. The product has high biocompatibility and promotes healing, the antibacterial rate is up to 96.7 percent, the liquid absorption rate is 1259 percent, the waterproofing grade is up to level 5, and the surgical dressing can be used for clinical repair for operative incision, burn, scald, ulcer and other skin injury and is simple in production process, low in cost and environmentally-friendly.
Owner:DONGHUA UNIV +1

Internet-of-things-based scenic spot visitor information interaction system

The invention provides an Internet-of-things-based scenic spot visitor information interaction system, which comprises a wireless local area network, a server as a node of the wireless local area network, a plurality of clients connected with the server and visitor interaction terminals configured to scenic spot visitors, wherein visitor interaction terminals are in signal connection with the clients and the server by the wireless local area network. Each visitor interaction terminal further comprises a central processing unit, a display, a positioning module and a wireless transceiver module, wherein the display is used for displaying scenic spot navigation path information; the positioning module is used for positioning the specific position of the visitor with the visitor interaction terminal; and the wireless transceiver module is used for performing data transmission and reception operations with the server and the clients by the wireless local area network. The interaction system provided by the invention has the advantages of high service performance and management efficiency.
Owner:徐建荣

Watermark adding and extraction method in digital image

The invention provides a watermark adding and extraction method in a digital image. The watermark adding method in the digital image comprises the steps that a target carrier image and a watermark image to be added are acquired; the target carrier image is coded; frequency domain transformation and first quantitative coding processing are performed on the obtained first color coded carrier image; singular value decomposition is performed on the watermark image, and the obtained first diagonal matrix is embedded the coded first high frequency band signals; the obtained U-matrix and the V-matrix are embedded in the coded first low frequency band signals; and a second color coded carrier image obtaining the watermark image is obtained according to the result of two times of embedding. Complete watermark information can still be extracted out of the a second color coded carrier image containing the watermark after printing and scanning, and the second color coded carrier image containing the watermark can be decoded and character information can be acquired so that the objectives of copyright protection and counterfeiting prevention through combination of the color two-dimensional codes and the digital watermark can be achieved.
Owner:SOUTH CHINA UNIV OF TECH

Porcelain granules containing carbon and preparation method thereof

The invention discloses a preparation method for porcelain granules containing carbon. According to the weight percentage, 5%-40% of carbon powder, 5%-25% of gold mine tailing powder and 35%-70% of fly ash make up main raw materials. The preparation method comprises the steps of: (1) the gold mine tailing powder is dipped in a HCl solution; (2) the carbon powder, the fly ash and the modified mine tailing powder are uniformly blended; and then water is added for wet mixing; (3) the wet material is prepared into spheric granules with the grain diameter of 5-20mm; (4) the spheric granules are dried and sintered to obtain the porcelain granules containing carbon. The porcelain granules containing carbon are multifunctional porcelain granules with the functions of adsorption, light weight, high strength, heat preservation, thermal insulation, etc.
Owner:ZHEJIANG UNIV

Method for treating complex-containing nickel plating wastewater

The invention discloses a method for treating complex-containing nickel plating wastewater, which is characterized by comprising the following steps of: adding an oxidant into the wastewater to be treated under the acidic condition to ensure that a nickel ion complex in the wastewater is subjected to oxidative damage by the oxidant and nickel ions are free; after the complex is damaged by the oxidation process, regulating the pH value by using an alkaline solution to make the nickel ions generate a hydroxide precipitate; adding dilute acid into the hydroxide precipitate for dissolving, concentrating, crystallizing, and recovering nickel salt; and adding dilute acid into the wastewater from which nickel is removed to regulate the pH, and adding a precipitating agent to remove phosphite and phosphate. The process that the pH of the wastewater is changed by a chemical method and heavy metal ions to be removed are precipitated and dissolved is adopted, so that the secondary pollution of the wastewater is avoided, the ions are completely precipitated, aftertreatment cost is low, the wastewater does not contain phosphorus, and economic benefits and environment friendliness are unified.
Owner:SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH

Audio processing method and device

The invention discloses an audio processing method and device. The audio processing method comprises the steps that audio information is collected through a microphone, and environmental noise in the audio information is filtered out; preset background sounds and the audio information with the environmental noise filtered out are mixed into a path of audio information in real time; the mixed audio information is coded, and therefore the real background sounds are replaced with background sounds set in a user defined mode. Therefore, in the calling process, the background sounds heard by the other person are the background sounds set by the user and are not the background sounds in the real environment, the user can set the background sounds to camouflage the environment where the user is located to achieve the aim of protecting privacy or ridiculing the other person, or in order to remove the crank calls of strangers, the user can set white noise or similar background noise as the background sounds to warn the other person. The environmental noise of the current environment is eliminated, sound recording or calling quality is improved, controllability and interestingness are improved, and the individual needs of the user are met.
Owner:NUBIA TECHNOLOGY CO LTD

Compound for hormonous dermatitis, preparation, preparation method and application

The invention relates to the field of biological medicine and specifically relates to a compound for hormonous dermatitis, a preparation, a preparation method and an application thereof. The compound comprises the following components: rose hydrosol, grape seed extract, aloe vera gel, liquorice extracting solution, curcumin, apigenin, oat-beta-glucan, amidogen glucan, water-soluble azone, polylysine, water soluble vitamin E, buxus chinensis, 1,2-glutaraldehyde, compound growth factor, hydroxypropyl-beta-cyclodextrin, EDTA-2Na, collagen, humectants, auxiliary material and natural preservatives. The components in the compound have mild action to skin and are free from irritation; the components are collocated with each other, can prevent inflammation and anaphylaxis caused by hormonous dermatitis on the basis of supplying moisture preservation and can restrain bacteria to infect the damaged skin. The added compound growth factor can promote metabolism and repairing of cells of corium layer, epidermis and especially cuticle and can promote the forming of intercellular substance, so as to repair the damaged skin and achieve the effects of protection and curing.
Owner:简婷婷

Digital demodulation device applied to CTCS standard point responder

ActiveCN101242194AAccurate digital signal and outputWith antenna fault detection functionAutomatic systemsTransmissionDigital filterSignal amplification
The invention discloses a digital modulating device for CTCS standard responder, comprising a main controller unit, an input signal filtering unit, a signal amplifying unit, an AD converting unit, a power supply unit and an external communication unit for filtering an input signal filtering unit with interruption noise which is orderly connected to the AD converting unit and the main controller unit via the amplifying unit. The main controller unit is to process digital filter operation to obtained digital signal to obtain real-time original signal and to process antenna malfunction and signal intensity judgment. The external communication unit is to process external electric isolation for the output signal of the main controller unit and to convert signal end signal to the difference signal so as to improve anti-interruption ability of the signal. The power supply unit is to provide various required grade voltages for other units, at the same time to judge stability of the system to generate restoring signal. The invention has simple structure, low cost, low power consumption and so on. The modulation operation is of excellent accuracy, real-time performance and safety.
Owner:HUNAN CRRC TIMES SIGNAL & COMM CO LTD

Lightweight environmental protection heat-resistant decoration material

The invention discloses a lightweight environmental protection heat-resistant decoration material, which comprises the following raw materials by weight percentage: 20-30% of waste and old plastic, 20-30% of fly ash, 10-15% of perlite, 10-15% of expanded vermiculite, 3-5% of diatomite, 8-12% of pvc resins, 4-5% of interface modifier, 4-6% of hardener, 3-4% of bamboo fiber, 0.6-0.8% of fire retardant, 2-4% of magnesium oxide powder, 0.2-0.3% of saponification agent, 1-2% of flexibilizer and 0.8-1% of disperse auxiliary agent. The hole-closing treatment on the surface of the material is carried out, heat conduction coefficient and water-absorbing quality of the material are reduced, and insulation effect is enhanced. The material realizes the utilization of waste and old plastic and utilization of waste materials, and can reach the purpose of energy saving and environmental protection. A fibrous whisker material with large length-diameter ratio is taken as a reinforcing material, compressive strength and flexibility of the material are increased, and the obtained material is difficultly aged, the material has the waterproof, fireproof and sound insulation functions, and is benefit for industrial popularization and application.
Owner:QINGDAO QINGGONG BUILDING MACHINERY

Automatic reciprocating cleaning device for unmanned aerial vehicle image monitoring

InactiveCN108889651AAchieve cleaning effectSolve the problem of being easily covered by dustFlexible article cleaningCleaning using toolsUncrewed vehicleEngineering
The invention discloses an automatic reciprocating cleaning device for unmanned aerial vehicle (UAV) image monitoring, which comprises a mounting tube, wherein the lower surface of the mounting tube is fixedly connected with a tempered transparent glass, the bottom inner wall of the mounting tube is fixedly connected with a video camera through a partition plate, and the upper surface of the partition plate is fixedly provided with a central processor. An automatic reciprocating cleaning device for image monitoring of an unmanned aerial vehicle the effect of reciprocating cleaning of the cleaning rod is achieved, When the connecting rod touches the upper travel switch, the upper travel switch sends out an electrical signal, Control motor reverse, the connecting rod slides down in the chute, When the connecting rod touches the lower travel switch, the lower travel switch sends an electrical signal, By controlling the motor to rotate forward, the connecting rod slides upward in the sliding groove, and then the rotating pin shaft is controlled to rotate forward and backward, so as to control the cleaning rod to swing back and forth and achieve the effect of automatic cleaning, therebyeffectively solving the problem that the monitoring equipment used in the unmanned aerial vehicle is easily covered by dust and affects its normal use.
Owner:钟乘凤

Vacuum pipe solar heat collector having temperature control and protection function

The invention discloses a vacuum pipe solar heat collector having a temperature control and protection function. By adding a method that a hard light insulation bushing can be automatically stretched, the control of the water temperature and the liquid level inside the water tank can be realized, and a heat collection pipe can be heat insulated and protected. The addition devices comprise an automatic telescopic bushing, a slotted hole corresponding to a bottom support saddle, a driving controller, a sensing device and the like. The heat collector is divided into a heat collection mode and a protection mode; under the heat collection mode, the bushing is in a retraction state, the heat collector receives the solar energy normally; and under the protection mode, multiple sections of heat insulation bushings are in an unfolding state so as to isolate the recontact of the heat collection pipe to the solar radiation and the air. By switching the two modes, the heat collector can well overcome main weaknesses of the traditional vacuum pipe solar heat collector.
Owner:SOUTHEAST UNIV +1

Water leakage protector for drinking water machine

The water leakage protector for drinking water machine includes one sensor set in the site with highest water leakage possibility to send out water leakage signal; one detection circuit to send warning and controlling signal based on the water leakage signal from the sensor; one protecting and warning device to shut off the water inlet valve to the drinking water machine on receiving the warning and controlling signal from the detection circuit; and one power input for providing work power source to the sensor, the detection circuit and the protecting and warning device. The present invention can shut off the water inlet valve and send warning signal in case of water leakage.
Owner:辜志承

Automobile rearview pedestrian detection and alarm method based on fisheye image correction

The invention discloses an automobile rearview pedestrian detection and alarm method based on fisheye image correction. The method comprises the steps of using a fisheye lens for collecting information behind a vehicle; extracting an effective area from the acquired fisheye image; re-processing the distortion of the edge of the image; detecting pedestrians in the image, identifying and segmentingthe pedestrians, and predicting the moving pedestrians; and judging whether to give an alarm according to the positions of the pedestrian and the tail and the pedestrian movement trend. The fisheye lens is used for collecting vehicle driving information, and the defects that a traditional camera is limited in visual range and large in installation number are overcome; de-noising and distortion processing are performed on the fisheye image through combined use of multiple image processing algorithms so that accurate pedestrian identification is enabled to be possible. A pedestrian recognition algorithm is used for analyzing the pedestrian position and the movement trend, and finally the effects of prompting and protecting the vehicle driving safety are achieved.
Owner:RES INST OF SUN YAT SEN UNIV & SHENZHEN

Application of ultra-small cerium oxide nanocrystal modified by phospholipid and polyethylene glycol

The invention relates to application of an ultra-small cerium oxide nanocrystal modified by phospholipid and polyethylene glycol, in particular to application of the ultra-small cerium oxide nanocrystal modified by the phospholipid and the polyethylene glycol in preparation of drugs for resisting acute liver injuries caused by acetaminophen. The ultra-small cerium oxide nanocrystal modified by thephospholipid and the polyethylene glycol can have various anti-oxidation mimic enzyme activities, and can effectively reduce the ultrahigh ROS level in the body, relieve inflammatory reactions and treat the acute liver injuries caused by APAP (N-acetyl-p-aminophenol).
Owner:ZHEJIANG UNIV

New energy storage battery protection device

The invention discloses a new energy storage battery protection device which comprises a protection box, a cover plate is movably connected to the top of the protection box through a hinge, a lockingdevice is fixedly connected to the right side of the cover plate, and air inlet grooves are formed in the two sides of the top of the cover plate. According to the invention, the air inlet grooves, afirst dustproof net, a heat dissipation mechanism, a temperature sensor, a processor, a heat dissipation groove, a second dustproof net, an anti-shaking mechanism, a buffer plate, a buffer mechanism and a mounting plate cooperate with one another, and the advantages of buffer protection and heat dissipation protection of the storage battery are achieved; when the new energy storage battery is used, the new energy storage battery can be effectively buffered and protected, vibration damage to the new energy storage battery is prevented, and the service life of the new energy storage battery is prolonged; and meanwhile, heat dissipation protection can be effectively conducted on the new energy storage battery, high-temperature burnout of the new energy storage battery is prevented, and the service life of the new energy storage battery is prolonged.
Owner:安徽原上草节能环保科技有限公司

Spark cluster outage self-protection and incoming telegram self-starting method

The invention provides a spark cluster outage self-protection and incoming telegram self-starting method. The method comprises the steps of connecting all host computers with exchangers separately, wherein LAN of routers is connected with the exchangers; the host computers and the exchangers are all supplied with power through a UPS, and the routes are supplied with power through mains supply; all the host computers, the exchangers and the routers form a local area network; multiple host computers form a cluster through the exchangers; any of the host computers is set to be a main node, and other host computers are set to be subsidiary nodes; the main code detects whether or not the routers are online every fixed time period, the mains supply is regarded as being switched off when the several subsidiary codes detect that the routers are offline, then a spark cluster is closed, a hadoop cluster is then closed, and finally all the host computers are closed, so that cluster software and hardware are protected from being damaged; if the mains supply is resumed, the routers are automatically started, the main node is awakened through the local area network, and subsequently the main node automatically opens the cluster, so that the purpose of cluster incoming telegram self-starting is reached.
Owner:NORTHWEST UNIV(CN)

Secondary plating-prior-to-etching metal frame subtraction imbedded chip normal-installation bump structure and process method

The invention relates to a secondary plating-prior-to-etching metal frame subtraction imbedded chip normal-installation bump structure and a process method. The structure comprises a metal substrate fame (1). The metal substrate fame (1) is internally provided with base islands (2) and pins (3). The back surface of each base island (2) is flush with the step surface of each pin (3). The step surface of each pin (3) is provided with a metal layer (4). The back surface of each base island (2) is normally equipped with a chip (6). The surface of the chip (6) is connected with the surface of the metal layer (4) through a metal line (7). The metal substrate fame (1) is internally filled with plastic packaging material (8). The front surface of the plastic packaging material (8) is flush with the step surface of the pin (3). The back surface of the plastic packaging material (8) is flush with the back surface of the metal substrate fame (1). The front surface of the base island (2), the front surface and the back surface of each pin (3) as well as the front surface and the back surface of the metal substrate fame (1) are provided with an anti-oxidation layer (9). The back surface of each pin (3) is provided with a metal ball (10). The beneficial effect of the structure and method is that: the problem that the function and the application performance of a conventional metal lead frame are limited since an object cannot be imbedded in the metal lead frame is solved.
Owner:JCET GROUP CO LTD

One-time eroding-before-plating metal frame subtraction embedded chip inversely-arranged salient point structure and technological method

The invention relates to a one-time eroding-before-plating metal frame subtraction embedded chip inversely-arranged salient point structure and a technological method. The one-time eroding-before-plating metal frame subtraction embedded chip inverse arranged salient structure is characterized in that a metal substrate frame is included, a paddle and pins are arranged in the metal substrate frame, chips are arranged on the back face of the paddle and the step surfaces of the pins through bottom filled glue, plastic packaging materials wrap the area of the periphery of the paddle, the area between the paddle and the pins, the area between the pins, the areas on the upper portion of the paddle, the areas on the upper portions of the pins, the area on the lower portion of the paddle, and the area on the lower portions of the pins and the chips, the plastic packaging materials are aligned with the upper surface and the lower surface of the metal substrate frame, anti oxidation layers are plated on or organic solderability preservative (OSP) wraps the front face of the paddle, the front faces and the back faces of the pins and the surface of the metal substrate frame, and metal balls are arranged on the back faces of the pins. The one-time eroding-before-plating metal frame subtraction embedded chip inversely-arranged salient point structure has the advantages of being capable of solving the problem that the function and the application performance of a metal wire frame are restricted due to the fact that objects cannot be buried in the plate thickness of the traditional metal wire frame.
Owner:JCET GROUP CO LTD

Biodegradable plastic adopting grass powder as raw material

The present invention discloses a biodegradable plastic adopting grass powder as a raw material. The biodegradable plastic comprises 30-60% of grass powder, 20-45% of PE, 3-10% of a modifying agent, 3-10% of a binder, and 3-5% of a bleaching agent. According to the present invention, the grass powder is used as the base raw material and is co-mixed with the PE, the modifying agent, the binder and the bleaching agent according to the specific component ratio to prepare the biodegradable plastic, such that the product has the biodegradable property, the purposes of energy saving, emission reducing and environmental protection are achieved, the raw material cost is low, and the promotion and application is easily achieved. The biodegradable plastic of the present invention is applied in the field of biodegradable materials.
Owner:ZHUHAI LVFENGYUAN GRASS IND SCI & TECH

Anti-rust protective coating for steel material and preparation method of anti-rust protective coating

The invention relates to an anti-rust protective coating for a steel material. The anti-rust protective coating is formed by compounding a compound rust transforming agent, thermoplastic or thermosetting resin, cement, a compound surfactant, ultrafine fibers and water, wherein according to the mass ratio, the compound rust transforming agent : thermoplastic or thermosetting resin : cement : a compound surfactant : ultrafine fibers=(0.5-15):(10-30):(20-65):(0-4):(0-5); the main ingredients of the compound rust transforming agent mainly comprise a divalent or trivalent metal oxide, a phosphate substance, an active filler and an alkali hydroxide which are compounded at the mass ratio of 2:8:8:1; the compound rust transforming agent can form a stable phosphating film and a complex precipitation film on the surface of rusted reinforcing steel bar; the surfactant is a sulfydryl-containing Gemini quaternary ammonium salt cationic surfactant and is prepared by reaction of the raw materials of sulfydryl-containing substances with a plurality of activated adsorption centers, such as mercaptoacetic acid sodium salt, 2-mercaptobenzothiazole sodium salt and alkyl dimethyl tertiary amines.
Owner:YANTAI UNIV

Air-controlled thermostatic printing ink roller for printing

The invention provides an air-controlled thermostatic printing ink roller for printing, and relates to the technical field of printing. The air-controlled thermostatic printing ink roller comprises anink roller, wherein an ink cavity is formed in the middle of the ink roller, a heating sheet is fixedly connected to the inner wall of the ink roller, and an air cavity is formed in the inner wall ofthe left side of the ink roller. According to the air-controlled thermostatic printing ink roller for printing, the air cavity and a conductive block are matched for use; in an initial state, a circuit of the heating sheet is switched on, and the ink in the ink cavity is heated; at the same time, a heating sheet at the bottom of the air cavity simultaneously heats the air at the bottom of a piston block, so that the air expands to upwards push the piston block; when the heating sheet is heated to a certain temperature, the circuit of the heating sheet is switched off; when the temperature ofthe ink cavity is decreased, the temperature of the air in the air cavity drops and contracts, the piston block descends, the conductive block is connected with the electric ring again, the circuit ofthe heating sheet is switched on, and the heating sheet is heated to the specific temperature again, so that the constant temperature effect of air holes is achieved, the ink is effectively ensured to be in the most suitable state, and the printing quality is improved.
Owner:万杰

Machine frame power management method and apparatus as well as machine frame system

The invention provides a machine frame power management method and apparatus as well as a machine frame system. The management method comprises the steps of obtaining single-board information and power information in the whole machine frame; according to the single-board information and the power information, obtaining a single-board power-on / power-off instruction; and according to the single-board power-on / power-off instruction, controlling a power-on / power-off state of a corresponding single board. According to the scheme, a power supply is managed by controlling the power-on / power-off state of the corresponding single board according to the single-board information and the power information in the whole machine frame, so that the single board is powered on or off along with the adjustment of the power consumption of the system and the problem of instable running of the machine frame caused by low power of the machine frame is solved; and the overcurrent of the power supply can be prevented and certain slots are controlled to be powered off, so that the power consumption can be reduced for the system and the effects of system protection, energy conservation and environmental protection are achieved.
Owner:ZTE CORP

Protective circuit of power supplier

The invention relates to a protective circuit of a power supplier. The protective circuit comprises a comparison circuit used for outputting a first control signal and a second control signal based on a first reference voltage, a second reference voltage and an output voltage of a power supplier; a charging circuit used for generating a charging voltage based on the first control signal; and a logic circuit used for outputting a protective signal based on the second control signal and the charging voltage so that the power supplier is shut off. The protective circuit detects the decrease speed of the output voltage of the power supplier to determine that the power supplier is in a short circuit state or an instantaneous AC cut-off state, such that the power supplier can be protected in the short circuit state and is not protected in the instantaneous AC cut-off state. Therefore, an extra circuit is not needed to detect working conditions at a primary side of the power supplier, so that costs are reduced.
Owner:INFINNO TECH CORP

Novel efficient desulfurization and denitrification agent

The invention relates to a novel efficient desulfurization and denitrification agent. The novel efficient desulfurization and denitrification agent is prepared by taking solid waste slag as a main material and taking calcium hypochlorite as an auxiliary material, wherein the solid waste slag contains a certain quantity of iron and calcium playing an important role in desulfurization and denitrification of flue gas, and through determination, the content of average effective calcium in the waste slag is 20%, the content of average effective iron is 8.6%, the content of Fe<2+> is 5.8%, and the content of Fe<3+> is 2.6%. The novel efficient desulfurization and denitrification agent takes calcium hypochlorite as the auxiliary material and takes Ca(ClO)2 as an absorption medium for desulfurization and denitrification reaction, thereby having the following two advantages: (1) ClO- has very strong oxidizing property so as to be favorable for oxidizing SO2 and NO dissolved in water to SO4<2-> and NO3<-> which are in highest valence states respectively, and removing together; (2) a large amount of Ca<2+> exists in a reaction system, and the dissolution of slightly soluble CaSO4 is inhibited so as to be favorable for producing a solid precipitate and further promoting the movement of balance of the desulfurization and denitrification reaction to the positive direction. The novel efficient desulfurization and denitrification agent can effectively remove sulfur and nitrates in the flue gas, and fully utilize the solid waste slag so as to reduce the serious harm to the water and soil; simultaneously, the novel efficient desulfurization and denitrification agent can be fully utilized to perform desulfurization and denitrification on the flue gas so as to achieve the effects of purifying and protecting the environment.
Owner:天津聚贤达科技有限公司

Water-saving water purifier

The invention discloses a water-saving water purifier. A concentrated water tube is leaded out of a wastewater tube through a concentrated water triple valve and is connected with an adjustable wastewater proportioner, so the wastewater discharge amount can be selected according to the quality of raw water, no discharge or less discharge is selected if the TDS value of the raw water is small, more discharge or complete discharge is selected if the TDS value of the raw water is high, more wastewater discharge is selected if the application amount of purified water is less (circulating water dilution is less), and less wastewater discharge is selected if the application amount of the purified water is large, so water saving and RO membrane protection effects are reached. Delivery tubes connected with two ends of a water inlet control valve on a water outlet tube of a front-membrane filter assembly control the flow-out of the purified water through the opening and closing of a four-side valve in order to form an independent water way, and the water-saving water purifier has the advantages of no starting of the circuit of the water purifier during purified water dilution and use, convenience for energy saving, and simple structure.
Owner:刘爱东

High-hardness biological building material

The invention discloses a high-hardness biological building material which comprises 11-13 parts by weight of isoprene rubber, 9-12 parts by weight of polyisoprene rubber, 3-5 parts by weight of halogen-free intumescent flame retardant, 14-18 parts by weight of tuber straw powder, 15-20 parts by weight of highland barley straw powder, 9-13 parts by weight of broad bean straw powder, 3-6 parts by weight of wood fibers, 9-14 parts by weight of silver birch saw dust, 3-8 parts by weight of oak tree saw dust, 1-2 parts by weight of bird cherry saw dust, 3-6 parts by weight of calcium carbonate, 5-8 parts by weight of potassium dichromate, 1-2 parts by weight of titanium dioxide and 3-6 parts by weight of kieselguhr. The high-hardness biological building material is high in hardness, not easy to age, waterproof, fireproof, heat-insulating and soundproof, and applicable to light partition walls of high-rise buildings and piping insulation.
Owner:QINGDAO UWELL INFORMATION TECH

Environmental-protection energy-saving building material

The invention discloses an environmental-protection energy-saving building material which comprises the following substances in parts by weight: 30-40 parts of a 108 solution, 20-30 parts of perlite, 1-6 parts of diatomite, 1-2 parts of hollow glass microbeads, 0.5-1.5 parts of a graphite powder, 1.5-3 parts of open-cell expanded perlite (14-120 mesh), 1.5-4 parts of hollow glass microbeads (120-200 mesh), 2-9 parts of polypropylene, 3-9 parts of bisphenol A type polycarbonate, 0.1-0.6 part of nano calcium carbonate, 3-8 parts of stearic acid, 5-8 parts of a talcum powder, 5-10 parts of carbon black, 3-9 parts of modified attapulgite clay, and 3-7 parts of azodicarbonamide. The environmental-protection energy-saving building material has the beneficial effects that the material is not easy to age, has the advantages of water resistance, fire resistance, heat insulation and sound insulation, and is suitable for thermal insulation of high-rise building lightweight partition walls and pipelines.
Owner:QINGDAO JIZHI ENERGY SAVING ENVIRONMENTAL PROTECTION
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