131 results about "Chemical safety" patented technology

The present invention relates to a Pu'er tea toothpaste and a preparation method thereof. The Pu'er tea toothpaste is characterized by comprising a Pu'er tea extract, which is obtained by steps of low temperature pulverization, ultrasonic extraction, pressure filtration, separation and concentration. The Pu'er tea extract is combined with food-grade auxiliary materials comprising glycerin, sorbitol, PEG400, tetrasodium pyrophosphate, sodium dihydrogen phosphate, sodium phytate, sodium carboxymethyl cellulose, xanthan gum, sodium lauryl sulfate, calcium phosphate dihydrate, hydrated silica and essence to prepare the Pu'er tea toothpaste. The method fundamentally eliminates quality issues such as spoilage, degeneration, color changing, flavor changing and chemical safety of the tea toothpaste, and effectively prolongs a shelf period of the tea toothpaste. The tea toothpaste has multiple special efficacies, such as removing scale, decomposing residual smoke stains, tea stains and coffee stains in slits between the teeth, reducing plaque, preventing breeding of harmful bacteria, disinfecting, diminishing inflammation, stopping bleeding, eliminating odor, promoting the secretion of saliva, moisturizing mouth, recovering taste buds, improving taste sense, and enabling a user to taste better flavor of food, and is a natural healthful tea toothpaste.

The invention discloses a method for sterilizing water by ultraviolet light catalysis and chlorine. The water treatment method combines ultraviolet light catalysis sterilization and chlorine sterilization to sterilize water. The method comprises the following steps: sterilization with the ultraviolet light catalyst is carried out first, and then the chlorine is added to the water within 0-60 minutes for the sterilization, or the chlorine is added to the water for the sterilization first, and then the sterilization with the ultraviolet light catalyst is carried out within 0-60 minutes, or the sterilization with the ultraviolet light catalyst is carried out on the water while adding the chlorine to the water for the sterilization, or the chlorine is previously added to the water before coagulation treatment is carried out on a water sample, coagulation treatment, precipitation treatment and filtration treatment are carried out, and then the sterilization with the ultraviolet light catalyst is carried out for the sterilization, or the ultraviolet light catalysis sterilization and the chlorine sterilization is carried out for treating the water sample after the coagulation treatment, the precipitation treatment and the filtration treatment. The method ensures biological safety and chemical safety of the water sample.

The invention discloses a gel electrolyte for a lithium ion secondary battery. The gel electrolyte comprises the following components by mass percent: 70%-90% of an electrolyte substrate (A), 0.1-25% of polymerizable monomers (B,C), 0.1-10% of an initiator (D), and 0.1-15% of a foamer (E), wherein the polymerizable monomers (B,C) comprise a first polymerizable monomer (B) and a second polymerizable monomer (C), and the first polymerizable monomer (B) can be dissolved in the electrolyte substrate (A) but the homopolymer of the first polymerizable monomer (B) can not be dissolved in the electrolyte substrate (A), and the second polymerizable monomer (C) and the homopolymer thereof can be dissolved in the electrolyte substrate (A); the foamer (E) has the chemical formula as shown in the description, wherein X is one of metallic ions including Mn, Mg, Al and the like or ammonium salt materials, and Y is one of alkyl compounds with H atoms and 1-10 carbon atoms or aryl compounds. According to the invention, the chemical safety performance is good, electrical property is superior, and the cycle performance and the rate performance of the battery is preferable, the service life of the battery is prolonged greatly.

The invention discloses a method of removing PPCPs (Pharmaceutical and Personal Care Products) in drinking water by combination of ozone and activated charcoal. The method comprises the following steps: enabling ozone and aqueous liquor to be fully contacted by adopting a mode that gas and water are continuously and reversely contacted by means of ozone; then, carrying out further reaction through a retaining column, and then, enabling the obtained product to enter into a bio-activated charcoal column to be treated. The method disclosed by the invention can effectively remove PPCPs in drinking water, wherein the removal rate of carbamazepine, oxcarbazepine, progesterone and progesterone reaches over 99.9% while caffeine, antipyrine, aminopyrine and sulfamethoxazole are not detected in the effluent. Compared with existing drinking water treatment technologies, the method has higher chemical safety guarantee and meanwhile has a better removal effect on conventional pollutants in domestic drinking water. The effluent can stably reach the national sanitary standard (GB5749-2006) of domestic drinking water, so that the method has huge practical value and utilization potential.

The invention discloses a UV light catalytic chlorine dioxide sterilization method for water. The water treatment method carries out water sterilization treatment by means of the combination of UV light and chlorine dioxide. The water sterilization treatment comprises the following steps that: after UV irradiation for sterilization is completed, the chlorine dioxide is added into water within 0 to 30 minutes so as to carry out the sterilization; or the chlorine dioxide is added into the water to carry out the sterilization and then UV irradiation for the sterilization is carried out within 0 to 30 minutes; or the chlorine dioxide is added into water to carry out the sterilization while carrying out the UV irradiation for the sterilization to water; or the chlorine dioxide is added in advance before carrying out water coagulation treatment, and the UV irradiation for the sterilization is adopted after treatments including coagulation, deposition and filtration; or after carrying out the treatments including the coagulation, the deposition and the filtration, etc. of a water sample, the method for the combination of the UV light and the chlorine dioxide is adopted to carry out water sample treatment. The UV light catalytic chlorine dioxide sterilization method ensures the biological safety and the chemical safety of the water sample.

The invention discloses a chemical corrosion-resistant blended fabric. The chemical corrosion-resistant blended fabric is formed by blending and weaving four types of fabric fibers of Teflon fibers, polyphenylene sulfide fibers, chlorine-containing fibers and aromatic polyamide fibers; the chemical corrosion-resistant blended fabric is formed by the components in percentage by weight of 35-39% of Teflon fibers, 20-24% polyphenylene sulfide fibers, 18-22% chlorine-containing fibers and 15-27% of aromatic polyamide fibers. The fabric is formed by blending and weaving the four types of fabric fibers of Teflon fibers, polyphenylene sulfide fibers, chlorine-containing fibers and aromatic polyamide fibers, and has excellent chemical corrosion resistance, flaming retardance and high temperature resistance and is high in chemical safety protection level and the woven fabric is high in strength and abrasion-resistant.

The invention discloses a dangerous chemical safety production risk monitoring and early warning system and method. The system comprises a dangerous chemical safety production risk monitoring and early warning system. The method comprises the following steps: extracting and summarizing monitoring information; collecting and transmitting monitoring information; analyzing and early warning; and performing violation/abnormity alarm processing. Real-time online monitoring and early warning are realized on the basis of the Internet of Things technology, Internet of Things monitoring data are transmitted to the cloud for centralized processing, hidden dangers can be found and eliminated in time, major risks are prevented, and major and extra-major accidents are restrained; through intelligent video analysis, unsafe behaviors of people and unsafe states of objects are automatically detected; and meanwhile, interconnection and intercommunication with other information systems are realized.

The invention relates to a water treatment sterilization method by ultraviolet catalysis hydrogen peroxide matched with chlorine/chloramine, belonging to the technical field of the sterilization in water treatment. The water treatment method is used for sterilizing the water by the chlorine/chloramine based on ultraviolet and hydrogen peroxide photocatalysis sterilization. The method comprises the steps of: adding 0.05-0.20mmol/L of hydrogen peroxide during ultraviolet irradiation, and feeding 0.10-0.20mg/L of chlorine into the water which is irradiated by the ultraviolet to sterilize; or adding 0.05-0.20mmol/L of hydrogen peroxide during the ultraviolet irradiation, and feeding 0.20-0.40mg/L of chloramine into the water which is irradiated by the ultraviolet to sterilize. The method is used for producing hydroxyl radical which is high in oxidability by the ultraviolet catalysis hydrogen peroxide, the deactivation effect to chlorine and ultraviolet-resistant sterilized microorganism is greatly improved due to the synergistic sterilization effect of the hydroxyl radical and the chlorine/chloramine, so that the biological safety and the chemical safety of the water can be guaranteed, and the method can be widely used for sterilizing and purifying drinking water.

The invention discloses a building water supply pipeline circulation system and method for secondary water supply quality guarantee and belongs to the field of drinking water treatment. The system comprises a building water supply inlet pipe, a lifting or water storage device, a flow measurement or detection device, a backflow controller, a building water supply vertical pipe, a building indoor pipeline and faucet, a backflow pipe, an ultraviolet/titanium dioxide sterilizer, a backflow electromagnetic valve and a check valve. In the normal water consumption process, municipal water passes through the building water supply inlet pipe, the lifting or water storage device, the flow measurement or detection device and the building water supply vertical pipe to reach the building indoor pipeline or faucet. When the hydraulic retention time of tap water for secondary water supply reaches 2 h or above, water in the building water supply vertical pipe passes through the backflow pipe and the ultraviolet/titanium dioxide sterilizer to flow into the building water supply indoor pipe or the water storage device again, is mixed with fresh tap water and then is used by users again through a secondary water supply system, and therefore the biological safety and chemical safety of the tap water in the secondary water supply system are ensured.

The invention provides an order generating method and device. The technical problems that various aspects of dangerous goods transport are in separate operation management and are not in effective butt joint and data in a dangerous goods transport process cannot be timely uploaded, monitored and online queried in real time in market in the prior art are solved. The invention provides a transport management method, device and system. The system comprises a consignment terminal, a carrier terminal and the transport management device. The consignment terminal sends consignment request information to the transport management device. The transport management device matches consigned goods and a chemical safety technical specification, generates a consignment order according to the consignment request information and the corresponding chemical safety technical specification, and sends the consignment order to the carrier terminal. Through the system, the technical effects of goods consignment, information audit, goods consignment undertaking, corresponding information online interaction and query and the like are realized.

The invention relates to an injection device for a life-saving air bag, comprising a three-way shell, one end of the shell is an intake end for communicating with a high-pressure gas intake while the other end of which is an outtake end for communicating with the air bag and the final end of which is an air door end for communicating with outside atmosphere, the three ends are intercommunicated, an end cover is arranged on the air door end, an air door hole is formed on the end cover, an air door pressing plate capable of opening and closing the air door hole through elastic deformation under air pressure at two sides of the air door hole is fixed at an inner side of the end cover, and the air door pressing plate comprises a fixed part which is fixed on the end cover, and an elastic bending part which covers and seals the air door hole. The device not only can be reused, but also has no chemical safety problems; air is inhaled under negative pressure which is generated while injecting high-pressure gas in the air bag, and the air door can be automatically closed in an air inflation process. The whole device is light in weight, reliable in sealing, large in injection ratio, automatic in pull-in after injection and very convenient in use and maintenance.

The invention discloses an expressway hazardous chemicals vehicle passing reservation system, which solves the problem that the running of the existing hazardous chemicals vehicles is difficult to manage on the expressway. The system mainly comprises a hazardous chemicals vehicle passing reservation platform and a hazardous chemicals vehicle release device. The hazardous chemicals vehicle passingreservation platform comprises a registration module, a check module, a user generation module, a storage module, a route planning module, an identification code generation module and a first communication module. The hazardous chemicals vehicle user registers the user information through the hazardous chemicals vehicle passing reservation platform, and fills in the qualification information and the vehicle identification information of the vehicle personnel during the registration via the registration module. Only the above-mentioned information conforms to the national regulations can the registration be successful, otherwise the registration fails. The system not only cracks down on the illegal transportation of hazardous chemicals, but also ensures that the personnel on the hazardous chemicals transport vehicles entering the expressway had the basic knowledge of hazardous chemicals safety.

The invention relates to a dangerous chemical safety management method based on a geographic information system (GIS) and mainly solves the problem in the prior art that dangerous chemical safety management level is low. By means of the method, a user logs in a dangerous chemical safety management platform to conduct safety management of dangerous chemical and dangerous chemical enterprises. The dangerous chemical safety management platform comprises a dangerous chemical enterprise and chemical inquiry statistic module, an emergency resource information inquiry statistic module, an emergency auxiliary decision module, a key industry and key regulation dangerous chemical inquiry statistic module, an accident case inquiry statistic module and a system maintenance module. The method well solves the problems and can be used for dangerous chemical safety management.

The invention belongs to the field of chemical safety and relates to a control device for oxygen content in the exhaust gas of an oxygen-containing liquid-phase material and a control method for oxygen content in the exhaust gas of an oxygen-containing liquid-phase material. The device comprises an inert gas supply unit (1), a gas-liquid mixing unit (2), a gas-liquid separation unit (3), and a tail gas pipeline (4) for exhausting a non-condensable gas obtained in the gas-liquid separation unit; the inert gas supply unit is provided with an inert gas flow control system (11); and the tail gas pipeline is provided with an oxygen content analysis system (41). The method includes the following steps that: an oxygen-containing liquid-phase material is mixed with an inert gas, so that a gas-liquid mixture flow is obtained; gas and liquid separation is performed on the gas-liquid mixture flow, so that a non-condensable gas and a liquid are obtained; and the oxygen content of the non-condensable gas is detected, and the supply amount of the inert gas in the step (1) is adjusted, so that the oxygen content is not higher than 9.5% by volume. With the control device and control method of theinvention adopted, the control of the oxygen content in the exhaust gas of a reaction product can be realized, so that the oxygen content is always below the lower limit of the explosive limit of a mixed gas.

The invention relates to a chemical safety glove removing machine, suction force is generated by suction holes through air suction of a vacuum pump, the safety gloves placed in the hand placing grooves by personnel are adsorbed, a worker is assisted to take off the gloves, a safe and sanitary removal device is characterized in that one ends of two supporting rods are symmetrically arranged on a fixed base, the other ends of the two supporting rods firstly extend upwards, the supporting rods are oppositely bent, the limiting rings are arranged at the other ends, close to the supporting rods, ofthe supporting rods in a sleeving mode, a storage box is arranged between the two supporting rods and connected with the two supporting rods through the connecting rods, one side face of the storagebox is an inclined face, the sectional area of the storage box is gradually increased from bottom to top, and an adsorption magnet is arranged at the bottom of the fixed base.

A material structure is provided with a multilayer material web (1) for forming flexible safety suits, containers, tarpaulins and tents. The material structure and products formed therefrom offers both high mechanical and chemical safety and makes it at the same time possible to greatly simplify both the manufacture of the material structure itself and the manufacture of chemical safety suits or other products with the desired properties and thus to make it less expensive. The multilayer material web (1) includes a fabric layer (2), a PTFE layer (3) applied on one side of the fabric layer (2) and a layer of a flameproof and flame-retardant material (5) applied on the other side of the fabric layer (2).

The invention belongs to the field of chemical safety technology and engineering, and relates to a method and a device for measuring calorimetry of a non-isothermal reaction process. Reaction temperature gradients T1, T2, T3 to Tn are set according to the non-isothermal reaction, initial acquisition temperature T0 is obtained, and generation reaction heat DELTArHm (generation) is calculated and obtained; according to the non-isothermal reaction, blank experimental reaction heat DELTArHm (blank) is obtained; according to the generation reaction heat DELTArHm (generation) and the blank experimental reaction heat DELTArHm (blank), heat effect caused by temperature rise during the reaction calorimetry process is obtained and deducted, and target reaction heat DELTArHm is obtained. The method adopts a non-isothermal heat flow mode to carry out the reaction calorimetry to realize real-time collection of various heat data in the reaction process and risk assessment on the non-isothermal reaction.

The invention discloses a chemical safety information fast query and whole cycle tracking digital label system, and belongs to the technical field of information coding. First, chemicals are integrated and categorized according to hazard classification and other information of 'Globally Harmonized System of Classification and Labeling of Chemicals', a chemical safety information database is established based on the identity information of chemicals, chemical information is coded, and the coding information of each chemical is made into a label; each label is attached to the package of the corresponding chemical; the chemical codes on the labels are entered by a terminal; and the terminal tracks a chemical online according to hazard classification and other information of the chemical. By adopting the system of the invention, chemical label information occupies a small storage space and can be identified quickly, and chemical information can be tracked in the whole process of circulation.

The invention provides a method for detecting a genotoxic agent by the utilization of Pseudorasbora parva and belongs to the field of chemicals safety evaluation and environmental monitoring. The method comprises the following steps: (1) processing Pseudorasbora parva by exposure treatment by the use of a water sample to be tested; and (2) carrying out single cell gel electrophoresis assay by using hepatic cells of Pseudorasbora parva processed after exposure treatment, detecting and counting cell tail length, DNA content and tail moment, and drawing a dose-effect curve. Through comparison between the result and a blank control and a positive control and through the dose-effect relationship, genetic toxicity of the test sample is determined. The detection method of the invention can sensitively and rapidly determine genetic toxicity of chemicals. The invention provides a China native species-based detection method for chemicals genetic toxicity evaluation and environmental genetic toxicity monitoring.

The invention relates to an automatic tracking method for leakage gas of a mobile sensor simulating female mosquitoes. Firstly, release gas is detected and sensed, then, finding of gas plume is carried out and the gas plume is tracked, and a leakage source item is confirmed after the tracking is stopped, wherein the specific process of confirming the leakage source item is as follows: after the tracking is stopped, according to an optimization algorithm and a diffusion inversion theory, a leakage source parameter when an error between a concentration detection value in the searching process and a concentration predicted value obtained by utilizing a gaussian gas diffusion model is minimum is used as a leakage source parameter estimation value so as to confirm the leakage source. Accordingto the method in the invention, source tracing of the leakage gas can be rapidly and accurately realized, and source tracing management of the gas leakage release time is improved. The automatic tracking method can be applied to the fields of chemical safety, environmental safety, disaster rescue and the like.

The invention relates to the technical field of chemical safety production management, and discloses a chemical enterprise safety production management integrated platform system and an early warning system thereof.The chemical enterprise safety production management integrated platform system comprises a management platform system, and the management platform system internally comprises a personnel management system, an equipment operation management system and a chemical production management system; according to the chemical enterprise safety production management integrated platform system and the early warning system thereof, an internal operation parameter acquisition unit of the equipment operation management system is used in cooperation with an operation parameter standard library in a database; the production management system can monitor and manage the production process of operation equipment in real time, and meanwhile, through cooperation of a material recording unit, a product quality detection unit and a production parameter statistical unit in the production management system and a product information management library in a database, the production and processing efficiency, quality and economical efficiency of chemical products can be improved.

The invention discloses a chemical safety live-action simulation drilling system based on a VR technology. The system comprises a digital high-definition camera, a signal collector, a VR server, VR glasses with earphones, a smell release device and a remote control center. The signal collector receives a front-end real-time video signal and transmits the front-end real-time video signal to the VRserver. The VR server processes the video signal, generates virtual video data and inputs the virtual video data into VR glasses to be displayed; the remote control center is used for controlling equipment in the real scene to generate or eliminate faults, controlling virtual images displayed by the VR glasses to generate accidents, controlling earphones carried by the VR glasses to play background sounds and controlling the smell release device to release smell; exercisers can participate in safety live-action simulation drill through the VR glasses, and the fault processing capacity and theaccident escape and rescue capacity are improved. According to the invention, related personnel can participate in safety drills personally, and the problem that the traditional safety drills become mere formality and is boring is mainly solved.

The invention provides a multifunctional chemical pipeline safe cover which comprises a sleeve, a cavity, a detection pipe, an exhaust pipe, an emergency lighting device, an alarm lamp and a control chip. The connecting position of chemical pipelines is sleeved with the sleeve. The cavity is formed in the inner upper portion of the sleeve. The detection pipe and the exhaust pipe are arranged on the upper portion of the sleeve and communicate with the cavity. The emergency lighting device is arranged on the left side of the detection pipe. The alarm lamp is arranged on the left side of the emergency lighting device and connected with the control chip. According to the multifunctional chemical pipeline safe cover, by arranging the detection pipe, the exhaust pipe, the control chip and the alarm lamp, the leakage information can be automatically detected, an alarm is made, and emergency exhaust is conducted; by arranging the emergency lighting device, additional lighting can be conveniently supplied during repair, functions are more abundant, and use is more convenient; and by arranging a protective shell and a protective cap, effective protection on individual parts is facilitated, and partial emergency repair tools can be stored.

The invention relates to a dangerous chemical safety inspection device and a gate system. The dangerous chemical safety inspection device comprises a first machine body and a second machine body whichare oppositely arranged at a certain interval to form a security check channel, an air blowing module is arranged in the first machine body and blows air into the security check channel, and an air suction module is arranged in the second machine body and sucks in gas in the security check channel to detect dangerous chemicals in the gas.