170results about How to "Reduce physical hazards" patented technology

The invention discloses a one-component water-based semi-gloss varnish and a preparation method thereof. The one-component water-based semi-gloss varnish comprises the raw material formulas in percentage by mass: 30-60% of water-based acrylic emulsion, 5-30% of water-based aliphatic series polyurethane emulsion, 3-10% of film forming assistant, 0.01-2% of antifoaming agent, 0.01-2% of dispersing agent, 0.1-5% of extinction powder, 0.01-2% of wax assistant, 0.01-2% of hand feeling assistant, 0.01-2% of thickening agent, 0.01-2% of cross-linking agent and 5-40% of water. The one-component water-based semi-gloss varnish of the invention has the advantages of super strong hand feeling, high fullness, high hardness, good chemical resistance, very low bodily injury on production and construction workers, and very low environmental pollution.

The invention discloses facility for automatically collecting waste liquid in volumetric flasks. The technical scheme of the facility includes that the facility for automatically collecting waste liquid comprises a fixing device, a power transmission device, a single-shaft robot, a transportation device and a rotary fixture. A container containing waste liquid is arranged on the fixing device, the fixing device on a conveyor is driven by a motor to be conveyed to an operation table, a cover of the container is unscrewed and placed in a cover collecting disc by a manipulator, the fixing device is transported to the rotary fixture above a waste liquid collecting barrel by a sucker, is fixed in a fixed sleeve, is turned and shaken by a rotating cylinder so that the waste liquid can be poured out, and finally is transported to the conveyor to be moved out of the operation table. The facility for automatically collecting waste liquid is simple in structure, convenient to operate, labor-saving, material-resource-saving, time-saving, safe, quick, high-efficient and automatic. Frequent working procedures are avoided.

The invention discloses a deplating liquid for a NiCuNi plating on the surface of sintered NdFeB and a deplating process thereof. The deplating liquid for the NiCuNi plating on the surface of sintered NdFeB adopts deionized water or clean tap water as the liquid solvent, and all components and component contents are as follows: 60-90g/L reserve salt S, 120-150ml/L ethylene diamine, 20-40g/L anti-corrosion complexing agent and 50-100ml/L mineral acid. The solute further comprises a surface active agent of 0.5-1g/L. The anti-corrosion complexing agent is sodium citrate or triammonium citrate; the mineral acid is nitric acid or ammonium nitrate; and the surface active agent is potassium thiocyanate, or sodium sulfocyanate or ammonium thiocyanate. The deplating process comprises the following steps: preparing a deplating bath; disposing a deplating liquid; executing the deplating; and removing the deplating liquid on a product. The deplating liquid has the advantages of stable property, good deplating effect and low cost; and the deplating operation is simple and convenient, pollution is prevented, body harm of operators is relieved, waste is changed into valuable and the benefits are remarkable.

The invention relates to a high-temperature acceleratingly-hardened emulsion explosive, which comprises water-phase materials, oil-phase materials, emulsifier, sensitizer and hardening accelerator, wherein the water-phase materials include wax and/or fatty acid; the sensitizer includes physical sensitizer and chemical sensitizer simultaneously; and the hardening accelerator is selected from silicate and/or alkaline matter. The temperature of the emulsion explosive is higher than 35 DEG C, and the emulsion explosive has a certain hardness and is non-sticky, thereby being applicable to open-air filling operation in hot summer, and being high in explosion performance.

A disposable electronic cigarette cartridge comprises a shell (1) internally provided with a center smoke channel (1a), an annular tobacco tar storage cup (1b) and a top cavity (1c), a cigarette holder cover (2) covering the top of the shell and provided with a center through hole (2a), an electronic cigarette atomizer arranged at the lower part in the shell, a tobacco tar guide rope (12) transversely arranged on the atomizer, a center electrode (6) arranged at the bottom of the atomizer, a battery rod connection device (7) of which the upper part is arranged between the shell and the atomizer, an electric heating wire (11) wound on the tobacco tar guide rope and a sealing element; the tobacco tar storage cup surrounds the center smoke channel; the top cavity can be used for placing a filter material or spice; two ends of the tobacco tar guide rope extend into the annular tobacco tar storage cup; two ends of the electric heating wire are connected with the center electrode and the battery rod connection device respectively. According to the disposable electronic cigarette cartridge, no tobacco tar storage cotton is used, germ breeding is effectively avoided, the use rate of tobacco tar is high, generated smoke is more, the tobacco tar is prevented from being sucked into a mouth and the smoking experience is better.

The invention discloses a rapid and automatic determination method and device for tripolycyanamide content in dairy products, belonging to the field of food analysis. The method comprises the following steps that: in a unit (A) under an operating procedure, a first step, a multifunctional valve is in a state I, a pump A rotates, a pump B stops, a first sample flows into a column 2 for enriching tripolycyanamide, and the eluent flows into a column 1 for regenerating tripolycyanamide; a second step, the pump A stops, the pump B rotates, the cleanout fluid flows into the column 2 for cleaning the impurities therein; a third step, the multifunctional valve is switched to a state II, eluent flows into the column 2 for eluting and regenerating tripolycyanamide; the tripolycyanamide in the column 2 is substituted by the eluent and directly enters into a sampling ring of a unit (B) in the form of a sample plug, so as to perform volume quantification, injection, re-separation and detection, and a response signal is processed by a computer; and meanwhile, a second sample enters into the column 1 for enrichment, and the process of the column 2 is repeated. The method and the device are high in automation degree and excellent in reproducibility, and can analyze about 30 samples per hour; and the unit (A) in the invention can be used with various flow injection analysis systems.

The invention belongs to the technical field of petrochemical engineering, and particularly provides a catalyst unpacking and conveying and dust removing system and method for an FCC (Fluid Catalytic Cracking) device. The catalyst unpacking and conveying and dust removing system comprises a dustproof unpacking system, a lifting system, a dust removing system and an automatic control system. With the adoption of the system and the method provided by the invention, the non-dust unpacking and dense phase automatic conveying of a catalyst can be achieved; the traditional conveying method of steam vacuum pumping is completely removed; and meanwhile, an efficient catalyst dust removing system based on a 316L stainless steel hybrid knitting filtering bag is adopted to replace the traditional cyclone separator; the dust removing efficiency can be increased to 99.99%. The system and the method have the advantages of low catalyst loss and relatively low running cost; and the method is a catalyst conveying and powder dust removing technology with a wide application prospect.

The invention provides a kit using single cell gel electrophoresis for detecting cell DNA damage and a method. The method includes gel laying, splitting, unwinding, electrophoresis, neutralizing and washing, drying and dyeing, a fluorescence microscope is used for observing a dyeing result and taking photos, and the damage degree of cell DNA is analyzed and evaluated. As three layers of gel need to be laid on a glass slide during sample preparation, a traditional single cell gel electrophoresis technology has the disadvantages of being complex in operation and prone to degumming, and sample images are unclear; while only one layer of gel needs to be laid on a glass slide, the kit has the advantages of being simple in sample preparing process, low in degumming rate, easy to operate, low in experiment cost and the like.

The invention discloses an environment-friendly, low-smoke and lead-free PVC electrical tube and a preparation method thereof. The electrical tube comprises the following components in mass part: 100 parts of PVC resin, 20-25 parts of calcium carbonate, 3.0-5.0 parts of organic composite heat stabilizer, 8-12 parts of impact-resistant agent, 2-3 parts of hydrotalcite, 5-8 parts of reinforcing agent, 2-4 parts of halogen-free anti-smoke flame retardant, 1-2 parts of internal and external lubricants, and 0.7-1.3 parts of TiO2. According to a formula ratio, the calcium carbonate is added firstly to be mixed at a high speed, and water in the calcium carbonate is removed. After that, the PVC resin is added to be mixed at a high speed for 2-3 min, and then other components are added to be thermally mixed and kneaded at a high speed for 10-15 mins. In this way, the temperature of an obtained product is up to 120-130 DEG C. Later, the product is cooled with the provision of cooling water at a stirring speed of 10-15 r/min to be discharged at 40-50 DEG C. Finally, the product is reheated to be plasticized, extruded and molded at 150-220 DEG C. The electrical tube is good in rigidness, anti-bending performance, heat resistance, aging resistance and insulativity, low in manufacturing cost and simple in machining process.

The invention discloses a composite electroplating technology of high-wear-resisting nano diamond alkene, and belongs to the field of electroplating technologies. The method comprises following steps: firstly, electroplating liquid is prepared, a nickel aminosulfonate stock solution, a boric acid aqueous solution and a nickel chloride aqueous solution are mixed and stirred, and heated to 55 DEG C to 60 DEG C, then, lauryl sodium sulfate, saccharin and 1,4-butynediol are added, and electroplating liquid is prepared; nano diamond alkene is added; the nano diamond alkene is ultrasonically dispersed for 2 h in the electroplating liquid, then, composite electroplating liquid is obtained, and the composite electroplating liquid is slowly added into an electroplating bath in batches; thirdly, electroplating is carried out, a cleaned-up to-be-electroplated workpiece is placed in the composite electroplating liquid at the temperature of 55 DEG C to 60 DEG C, the to-be-electroplated workpiece serves as a negative electrode, a pure nickel plate serves as a positive electrode, the electroplating liquid is stirred, and electroplating current of 1-3A/dm<2> is applied; and after electroplating is finished, and an electroplating part is obtained. The thickness of an electroplating layer is reduced, the requirement for heavy metal is reduced, the pollution to the environment is reduced, and hardness, wear resistance and corrosion resistance of the electroplating layer can be obviously improved.

The invention relates to a road patrol system, and specifically relates to a traffic police robot system. The system comprises a camera system, a human-machine interaction system, a navigation positioning system, a command arm, a remote assistance system, a fault report system and a background management system respectively and individually connected with a control system, the above parts perform bidirectional data transmission with the control system, the control system includes optimal traffic guidance schemes in various conditions, and the control system transmits data stored by robots to the background management system in a wired or wireless connection manner. The permission time is intelligently adjusted, the waiting time and energy waste are reduced, the traffic is smooth, the labor intensity and body harm to traffic police can be reduced, and the defects that according to the conventional traffic light, the permission time cannot be intelligently adjusted according to the traffic flow, meaningless waiting and traffic jam for vehicles are caused, the labor intensity for the traffic police is high, and the body harm to the traffic police is serious are overcome.

The invention discloses a novel woodworking engraving machine. The novel woodworking engraving machine comprises an engraving machine body, a control box, a beam, an engraving handpiece, a mobile shaft, a power dust suction pipe, a controller and an engraver, a mobile rail is installed on the upper portion of the engraving machine body, the control box is installed under the mobile rail, a stop button is arranged on the surface of the control box, an engraving machine working button is installed on the right side of the stop button, a mobile block is installed on the left side of the control box, the beam is installed on the right side of the mobile block, the mobile shaft is installed under the beam, the engraving handpiece is installed on the right side of the mobile shaft, a silencer isinstalled on the left side of the engraving handpiece, and the powerful dust suction pipe is installed on the right side of the mobile shaft. According to the novel woodworking engraving machine, through the silencer installed beside of the engraving handpiece, noise generated during work of the engraving handpiece of the engraving machine can be eliminated, so that noise pollution is reduced, the equipment functionality is improved, and the production requirements of people are met.

The invention relates to a preparation method of tylosin phosphate or a tartrate crystal. The method comprises the steps that tylosin tartrate or phosphate powder is sufficiently dissolved in ethyl acetate; butyl acetate is slowly and dropwise added in a stirring state and at 0-5 DEG C, and is sufficiently mixed; the stirring state is kept for 1-2h after the adding is completed; centrifugal separation is performed; and the obtained crystal is subjected to drip washing by cold butyl acetate, and then subjected to vacuum drying until the drying loss is less than 1%. According to the preparation method, tylosin phosphate or tartrate is prepared into crystalline particles, and the crystalline particles replace powder; the specific gravity of the crystalline particles is greater, so that dust pollution is avoided in packaging and using processes; the particles are added to animal drinking water and can sink into the water bottom easily; the particles are better in dispersity, faster in dissolution rate and higher in content, can be directly added to animal feed or the animal drinking water; a solvent is very easy to recover; and the preparation method has a certain application prospect in a production process.

The invention discloses a water-blown warm-mix flame-retardant asphalt mixture and a preparation method thereof. According to the invention, through comprehensive utilization of a water-blown asphalt warm-mixing technology and an asphalt flame-retardation technology, construction temperature of an asphalt pavement is effectively reduced, the safety factor of a tunnel asphalt pavement is increased, and the advantages of energy conservation, emission reduction, greenness, environmental protection, reduction in construction cost, improvement of warm-mixing construction technology for tunnel flame-retardant asphalt pavements and the like are obtained. The invention also provides a design method for the water-blown warm-mix flame-retardant asphalt mixture. The method utilizes the concept of equivalent design of basic mix ratios and technique indexes to improve the traditional design method for the warm-mix flame-retardant asphalt mixture, provides bases for the design of the water-blown warm-mix flame-retardant asphalt mixture and fills a gap in the design method for the water-blown warm-mixed flame-retardant asphalt mixture.

The invention discloses a quick and low-toxic mosquito paraffin section manufacturing method and belongs to the technical field of microscopic tissue section. The method includes the steps of artificially feeding mosquitoes, preparing and fixing materials, dehydrating and transparentizing the materials, performing paraffin infiltration and embedding, cutting the materials into sections, and dyeing and sealing the sections. In the paraffin section manufacturing method, the mosquitoes are processed into the sections after being fed, so that intestines and esophagus of the mosquitoes can be observed intuitively. Before fixation, feet and wings of the mosquitoes are removed, so that on one hand, the mosquitoes are convenient to fix, and on the other hand, the follow-up paraffin infiltration process is accelerated and uniformity of the paraffin infiltration is ensured. Meanwhile, the fixing and paraffin infiltration processes in the method are carried out under negative pressure, so that infiltration of a fixing liquid and the paraffin is improved, thereby ensuring successful section cutting. In addition, the method reduces section preparation time at certain degree, and improves work efficiency. Finally, the method is free of xylene, so that the body damage on technical staffs in pathology department and environment pollution are reduced greatly.

The invention provides an automatic coating machine (100) which comprises a frame (10), a first drive device (301), a transmission device (203) and a second drive device (302), wherein the frame (10) comprises a top frame (101), a bottom frame (102) and a vertical frame (103); the first drive device (301) and the transmission device (203) are arranged on the bottom frame (102); a reversing mechanism (204) and a baking tray (201) are sequentially arranged at the top of the transmission device (203); the second drive device (302) is arranged on the top frame (101) and can drive a vertically-arranged guide part (304) to transversely move along a first guide rail (305) in the top frame (101); and a spray gun (306) is arranged at the end of the guide part (304). Through the structure, the thickness of a coating layer can be accurately controlled, the coating quality is improved, the labor intensity of operators is eased, the harm to the health of the operators is reduced, and the production efficiency is improved.

The invention discloses a drying device used for wood box paint spraying and having the dust removal function. The drying device is characterized by comprising a dust removal chamber, a paint spraying chamber, a drying chamber, a cooling chamber and a conveying device; the conveying device is a guide rail which sequentially penetrates the dust removal chamber, the paint spraying chamber, the drying chamber and the cooling chamber; the dust removal chamber comprises an air compressor and a dust suction air cover connected with the air compressor; the cooling chamber is connected with a waste gas purifying module; and a controller is connected with the dust removal chamber, the paint spraying chamber, the drying chamber, the cooling chamber, a waste gas purifying module and the conveying device. According to the drying device used for wood box paint spraying and having the dust removal function, dust, suspended small particles and other pollutants in air can be adsorbed to the surface of a wood box where paint is to be sprayed and thus become factors affecting the quality of the wood box in the post-processing process; and in order to improve product paint spraying quality, it is specially needed to perform dust removal processing on the wood box where paint is to be sprayed before paint spraying, and the dust removal effect is obvious.