238results about How to "Avoid potential hazards" patented technology

The invention discloses a slide rail gear cable arrangement mechanism. The slide rail gear cable arrangement mechanism comprises a box, a chamber and a drawer arranged in the box, wherein the drawer comprises a side wall, and a door for opening and closing the chamber; and the drawer is connected with the chamber through a slide rail. The slide rail gear cable arrangement mechanism further comprises an electric control original part arranged on the box, and a control panel arranged on the door; the electric control original part is connected with the control panel through a lead; the slide rail comprises a moving rail capable of fitting and sliding and fixed on the side wall of the drawer, and a fixed rail fixed on the chamber through a connecting piece; a first rack is arranged on the moving rail; the moving rail and the fixed rail are arranged in the opening and closing direction of the drawer; a second rack capable of sliding along a guide groove is arranged on the connecting piece; the connecting piece is provided with a large gear and a small gear in synchronous transmission; and the first rack and the second rack are respectively engaged with the large gear and the small gear, and are respectively provided with pipes for continuously penetrating through leads. The slide rail gear cable arrangement mechanism solves the winding and breaking problems of cables in the moving process, prevents multiple hidden troubles, and is simple in structure and convenient for installation.

The invention discloses an automatic detection method for a large transfusion production line, including the following steps: 1, making a transfusion bottle filled with liquid medicine rotate in a high-speed, then rapidly stopping the transfusion bottle, so that the liquid medicine in the bottle has a self-rotating movement under the inertia; 2, picking-up a plurality of images of the transfusion bottle in which the liquid medicine is in a self-rotating state; 3, respectively digitally processing and mutually comparing to the plurality of images, distinguishing the exogenous impurity in the liquid medicine, in order to judge whether the bottle of liquid medicine is qualified. The invention also discloses an automatic detection apparatus for a large transfusion production line, which is characterized by including a rotation device, a controller, a video camera and an image processing apparatus, wherein, the output end of the controller is connected with the control terminal of the rotation device, a gripping device for fixing up the transfusion bottle, a rotating work station and a detecting work station are provided on the rotation device, and the video camera outputs data to the image processing apparatus. The invention can automatically detect whether impurity exists in the liquid medicine, with high testing accuracy and fast testing velocity.

The invention belongs to the technical field of compressed air energy storage, and in particular, relates to an isothermal compression air energy storage power generation system based on liquid temperature control and a method thereof. The system consists of an internal temperature control liquid piston, hydraulic power generation equipment, a gas storage tank, a low-pressure pool, a temperature control liquid source, an external temperature adjusting facility, a liquid driving device and a valve; in energy storage, the hydraulic power generation equipment converts electric energy to liquid potential energy, gas is compressed in the internal temperature control liquid piston, generated heat is stored by liquid, and high-pressure gas is fed in the gas storage tank; in power generation, high-pressure gas is expanded for acting in the internal temperature control liquid piston, and the heat is absorbed from the liquid to push the hydraulic power generation equipment to generate electricity; and the liquid in the temperature control liquid source replaces original liquid of the internal temperature control liquid piston to control the temperature of the gas in the liquid piston, so that the liquid temperature control of the temperature control liquid source is realized, and four working modes of an open direct supply operating mode, a closed direct supply operating mode, an afterheat utilization mode and an efficient power generation mode are realized.

The invention discloses an internal-circulation low temperature grain storage system and method. The internal-circulation low temperature grain storage system comprises a grain bin, ventilation equipment, a grain condition detection unit and an intelligent ventilation unit, wherein at least one ventilation opening is formed in the bottom of the grain bin; an electric window is arranged on one wall surface; an electrically operated valve is arranged at each of the ventilation openings; each of the ventilation openings communicates with one end of a thermal insulation pipe; the other end of each of the thermal insulation pipes is connected with a circulating fan; a ground ventilation cage is arranged on the ground surface in the grain bin; the ventilation equipment comprises at least one centrifugal fan, the at least one circulating fan and at least one air conditioner; the grain condition detection unit comprises a plurality of grain pile temperature sensors and a bin inner temperature and humidity sensor; the intelligent ventilation unit comprises a first server and an intelligent control cabinet; the first server is in communication connection with a small-sized meteorological station outside the bin; and the operation of the ventilation equipment and the opening and closing of the electrically operated valves are automatically controlled by the intelligent control cabinet. According to the internal-circulation low temperature grain storage system and method, the intelligent regulation and control can be carried out timely when the grain pile temperature and the bin inner temperature and humidity deviate from the safe grain storage range, the labor intensity of grain bin keepers is reduced, and the grain bin management cost is greatly reduced.

The invention discloses a manufacturing method and process device of a reactivated cleaning agent for regeneration of a honeycomb SCR (selective catalytic reduction) denitration catalyst. The deactivated SCR denitration catalyst in the process device is regenerated through the steps of pressurized water spraying, ultrasonic cleaning, secondary pressurized water spraying, acid washing, forced air drying, active component supplementation, secondary forced air drying, step-by-step calcination and the like in sequence. By using (NH4)2SO4 as a main component of an acid washing solution, potential hazards caused by sulfuric acid are avoided, and the economic performance and the safety are realized. The components such as EDTA (ethylene diamine tetraacetic acid) are added into the cleaning agent, and under the chelation of the EDTA and heavy metal elements, the toxic action on the denitration catalyst caused by the heavy metal elements can be well eliminated. According to the process, the denitration activity of the deactivated catalyst can be recovered, and meanwhile, the structural strength of the catalyst can be kept. The process device is simple, suitable for regeneration in hoisting transportation, and high in efficiency. By the promotion of the process, the performance of the regenerated honeycomb SCR catalyst can be improved, the replacement cost of the catalyst is saved, and the process has an important significance on NOX control.

The invention discloses a new environment-friendly halogen-free fire retardant polypropylene composite material, which is composed of polypropylene of 100 parts by weight, magnesium hydrate of 10-100 parts by weight, red phosphorus of 1-10 parts by weight, elastomer of 5-20 parts by weight, compatibilizer of 10-30 parts by weight, anti-oxidant of 0.1-0.5 parts by weight and some lubricant, wherein the polypropylene powder, magnesium hydrate and red phosphorus are premixed in a high-speed mixer, under general feeding speed, temperature and screw rod rotation speed, to be fed into a two-screw extruder to be extruded, cooled, cut, dried and injected to obtain the final product. The inventive fire retardant polypropylene material overcomes the defects of traditional halogen fire retardant polypropylene material as environment pollution and hurt on human body, with little smoke, non toxicity, environment protection, better fire retardancy and mechanical property.

The invention relates to a lossless and comprehensive identification method based on visible spectrum imaging and used for ancient fresco pigment. The method includes: building a comprehensive frescopigment database according to basic pigment used by a fresco and a double-constant Kubelka-Munk theory to serve as the reference foundation of fresco pigment identification; acquiring the visible spectrum image of an ancient fresco; rendering the visible spectrum image to obtain a corresponding colored RGB image; using a superpixel segmentation algorithm to perform fine segmentation on the coloredRGB image; calculating the average spectral reflectance of each subregion; extracting the spectrum features of database samples and subregion pigment; building a fresco pigment identification methodto identify substance variety of the pigment of each subregion, further identifying the average particle size of the pigment if the pigment is single-color pigment, judging that the pigment is the pigment with minimum particle size if the pigment is mixed pigment, and further calculating the concentration proportion of each pigment; acquiring the two-dimensional distribution diagram of each pigment in the fresco so as to complete the lossless and comprehensive identification, which includes pigment substances, particle size, concentration and distribution, of the ancient fresco pigment.

A method for preparing to long-thread vermicelli (or sheet jelly) includes such steps as proportionally mixing starch, starch ester of octenyl succinate, soya bean lecithin, konjak glucomannan, D-sodium isoascorbate, edible vegetative oil and water, stirring, and heating while shaping. It features no use of alum.

The invention discloses a biological membrane which promotes healing and a preparation method thereof. The biological membrane which promotes healing is prepared by mixing chitosan derivative solution and sesame oil for ionic crosslink and drying the mixture to form membrane. The membrane has a certain flexibility and strength and integral gel can be formed after the membrane absorbs exudates. Adhesion with wound surface can be avoided, thus medicine changing is convenient and no secondary injury is caused. In addition, the membrane has the advantages of moist keeping, antibacterial action, scars reducing and the like. The membrane has obvious curative effect of promoting wound to heal and is applicable to curing surgical wound, bruise, burn, donor site, bedsore, diabetic ulcer and other wound surfaces which are difficult to heal.

The invention discloses inner column type umbrella-shaped expanding equipment and an expanding method thereof. The inner column type umbrella-shaped expanding equipment comprises an umbrella-shaped expanding device and a plurality of longitudinally-distributed inner columns; and the inner columns are pressure-bearing columns I or telescopic pressure-bearing columns or telescopic pull rods; when the number of the inner column is one, the inner column is located on the central axis of the umbrella-shaped folding rod set; when the number of the inner columns is larger than or equal to two, the multiple inner columns are distributed around the central axis of the umbrella-shaped expanding body device; the inner columns are combined or independently arranged; the combined arrangement of the inner columns comprises combined arrangement of a tie bar disc and the front end of the inner column and/or combined arrangement of a tie bar penetrating disc and the rear end of the inner column; when the inner columns are the pressure-bearing columns I, one ends of the pressure-bearing columns I are hinged to the front ends or the rear ends of all the folding rods, and the other ends of the pressure-bearing columns I are located between the front end and the rear end of the umbrella-shaped folding rod set; and when the inner columns are the telescopic pressure-bearing columns or the telescopicpull rods, the two ends of the telescopic pressure-bearing columns or the telescopic pull rods are fixedly connected with the front end and the rear end of the umbrella-shaped folding rod set respectively. The inner column type umbrella-shaped expanding equipment and the expanding method thereof are used for achieving the purpose of optimizing the pre-collection type three-hinge pressure-bearing structure.

The invention discloses a high carbon dioxide air-regulating package fresh-keeping method for a fresh-cut lettuce. In the method, O2, CO2 and N2 are used as an air source, the fresh lettuce is pre-cooled and selected to be fresh cut in the fresh state, and the fresh-cut lettuce is placed in a fresh-keeping bag with high gas barrier property, and the mixing ratio of the O2, the CO2 and the N2 is set as follows: 10% O2 + 10-50 of CO2 plus 40-80% N2. The method is used for controlling the brown stain and maintaining the quality after the lettuce in fresh state is cut, so that the shelf life of the products can be prolonged, and the preservation period of the fresh-cut lettuce can be more than 15 days at 0-4 DEG C. In the method, no chemical antistaling agent is used, so that the food safety of the fresh-cut lettuce is ensured.

The invention provides a preservation method for fresh cut aralia elata seem through the combination of high-concentration oxygen modified atmosphere packaging and low-temperature storage. The preservation method comprises the first step of selecting, the second step of cleaning, the third step of airing, the fourth step of tidying, the fifth step of bagging, the sixth step of air exhausting, the seventh step of inflating, the eighth step of sealing and the ninth step of storing. According to the method, a high-resistance polyethylene film is adopted as a modified atmosphere packaging bag, gas of the high-concentration oxygen modified atmosphere packaging comprises, by inflating proportion, 75%-95% of oxygen and 25%-5% of carbon dioxide gas, and low-temperature storage is combined after modified atmosphere packaging. The preservation method is applied to the preservation of the fresh cut aralia elata seem, the poisonous effect generated by anaerobic respiration is obviously reduced, meanwhile, the respiration action is reduced, color changing is prevented, moisture evaporation and pest and disease damage infections are reduced, the original unique flavor and the nutrient ingredients of the aralia elata seem are maintained to the maximum, and the shelf life of the fresh cut aralia elata seem is effectively prolonged. According to the technical scheme, the rot, browning and reduction of vitamin C, total phenols and other nutrient ingredients of the fresh cut aralia elata seem are obviously restrained, the hardness and the antioxidant activity of the fresh cut aralia elata seem are improved, the fresh cut aralia elata seem has high appearance quality and sanitary quality, the preservation period of the product is prolonged to 10-12 days from 2-3 days, and the price can be increased by 2 times.

The invention discloses a pure plant bactericidal washing powder. The washing powder is a detergent prepared by the following raw materials in percentage by weight: 40 to 60 percent of tea seed cake, 20 to 30 percent of gleditsia sinensis lam, 10 to 15 percent of indigowoad leaf and 10 to 15 percent of sessile stemona root. The washing powder has the following advantages that: the decontamination functions of the tea seed cake and saponin which is contained in chinese honeylocust fruit and the bactericidal and bacteriostatic functions of the indigowoad leaf and the sessile stemona root are utilized. Experiments prove that: by the pure plant bactericidal washing powder, harmful bacteria on clothes are killed simultaneously in the process of cleaning the clothes, and the defect that the bacteria are easy to breed on the clothes washed by vegetative washing powder.

The invention discloses a budesonide and formoterol spray inhalation suspension and a preparation method thereof.The budesonide and formoterol spray inhalation suspension comprises, per 1000 ml, the following components: 0.5-5 g of budesonide, 10-100 mg of formoterol, 0.1-0.5 g of a dispersant, 1-100 g of isoosmotic adjusting agent, 0.1-1 g of metal ion complexing agent, 0.1-20 g of pH buffer, pH regulator to adjust pH of a system to 4.0-6.0, and the balance of water, adding up to 1000 ml.The potential hazard of a lactose vector in powder aerosols can be avoided, delivery dosage is accurate and controllable, the requirement on ventilation flow is low, and compliance is good; the preparation method is simple to perform, required equipment is simple, and the requirement for asepsis of products can be met.

The invention discloses a defect detection method for a road deceleration strip. The method includes: firstly, obtaining a road image of deceleration strip information; separating a deceleration stripcontour image from the road image; obtaining a grayscale deceleration strip contour image and a grayscale road image without a deceleration strip, then solving a gradient map of the grayscale deceleration strip contour image, further solving an edge line between color blocks, and when the edge line is between a yellow block and a black block, obtaining that the deceleration strip corresponding tothe gradient map is an intact deceleration strip; when the obtained edge line is an edge line between a yellow block, a defective color block and a black block, obtaining a yellow block image, a defect color block image and a black block image, and numbering the low block image, the defect color block image and the black block image in sequence. In this way, gray value comparison in the next stepis facilitated; the total defect number, the defect yellow block number and the defect black block number are finally solved through color lump colors at two ends of defect color lump; and the operation efficiency is high, and the potential harm to vehicles and personnel caused by the defects of the road deceleration strip is avoided.

The invention belongs to the technical field of hydrogel materials, and particularly relates to degradable self-healing chitosan composite aldehyde guar gum hydrogel as well as a preparation method and application thereof. The method comprises the following steps: 1) obtaining a chitosan (CHI) solution; 2) preparing a solution of aldehyde guar gum (AGG); and 3) carrying out a reaction on the solution of aldehyde guar gum with the solution of chitosan to prepare the degradable self-healing chitosan composite aldehyde guar gum hydrogel. According to the preparation method, an aldehyde group on an AGG chain and an amino group on a CHI chain are subjected to a Schiff base reaction to form an imine bond, and the CHI/AGG hydrogel is obtained by taking the imine bond as a cross-linking point. Dueto a dynamic crosslinking mechanism, the hydrogel can realize self-healing within 5 minutes and can be degraded near a neutral environment.

The invention provides a serum-free culture medium system for culture of primary human epidermic cells, relates to the technical field of biological medical materials, and discloses application of a serum-free culture medium in in-vitro culture of human epidermic cells. The serum-free culture medium system has the advantage that the cholera toxin and various anchoring factors are not added, the potential hidden hazard due to complicated components is avoided, the epidermic cells can well grow, and the requirement of scaled production and application is met. The serum-free culture medium system for culture of primary human epidermic cells comprises a basic culture medium and exogenous adding factors, wherein the basic culture medium is formed by mixing a DMEM (dulbecco's modified eagle medium) commercial culture medium and a F12 commercial culture medium according to a certain ratio, and can also adopt a commercialized cell culture medium MCDB153; the exogenous adding factors comprise L-glutamine, EGF (epidermic growth factors), BPE (bovine pituitary extract), insulin, penicillin-streptomycin, calcium chloride, transferrin, adenine, hydrocortisone, and sodium selenite.

The invention relates to the field of formulae of pig feeds, and in particular to a piglet creep feed with plasma proteins replaced by chicken whole egg powder and a brewers yeast extract. The piglet creep feed comprises the following materials in parts by mass: 520-540 parts of corns, 80-100 parts of peeled soybean dregs, 50-90 parts of extruded soybeans, 30-50 parts of fermented soybean meal, 30-50 parts of fish meal, 20-25 parts of intestinal mucosa protein, 40-50 parts of the chicken whole egg powder, 10-20 parts of the brewers yeast extract, 90-110 parts of whey powder, 10-20 parts of soya-bean oil, 8-10 parts of mountain flour, 7-10 parts of calcium hydrophosphate, 1.5-2.5 parts of table salts, 2.5-3.0 parts of zinc oxide, 4-5 parts of an acidifier and 3.5-4.5 parts of 98% lysine. By using the chicken whole egg powder and the brewers yeast extract to replace the plasma proteins, the piglet creep feed with the plasma proteins replaced by the chicken whole egg powder and the brewers yeast extract, disclosed by the invention, has the advantages of not only reducing the cost of the piglet creep feed, but also avoiding potential hidden danger of homologically spreading pig infectious diseases by plasma protein powder.

The invention relates to an automatic testing system and an automatic testing method for operation of a hydraulic wrench, wherein the system and the method are applied in screw tightening and bolt maintenance operations in a wind power industry. Through recording a torque value and a bolt rotating angle when bolt tightening is finished in bolt tightening or checking, process quality control and long-term big data analysis are realized. Furthermore the automatic testing system is preset through a technical formula, thereby realizing automatic pressure adjustment, realizing an integral foolproof function through automatic determining bolt tightening, and preventing bolt torque exceeding, torque insufficiency and bolt omission caused by man errors. The automatic testing system and the automatic testing method further have advantages of preventing hydraulic tool fault stoppage maintenance time through full life-cycle management of a hydraulic system, and ensuring stable operation of tools.

The invention relates to a method for chemically rounding the end of single filament. Wherein, it comprises: emerging one end of single filament into chemical rounding solution as alkali solution, acid solution or phenol solution; using said chemical rounding solution to corrode the single filament for preset time, to obtain the single filament with round end. For example, one end of single filament is rounded, and another end is sharp, therefore, the brush filament made from said single filament can massage and protect the gum. And the invention also provides a method for making two ends of brush filament in different shapes.

The invention discloses a method and system using advanced oxidation of hydroxyl free radicals to control the invasion of marine non-indigenous organisms, and relates to the fields of plasma chemistry, free radical biology, and marine environment ecology engineering. The system comprises a high concentration hydroxyl free radical generating unit, a liquid-liquid dissolving unit, a residual oxidant neutralizing unit, a central control system, a filter, a Venturi jetting unit, an alga-water quality-TRO detection facility, a ballast water storage chamber, a mechanical pump, a controller, a liquid flow meter, an electromagnetic valve, and a unit discharge valve; each unit is controlled by the central control system through the controller; the high concentration hydroxyl free radical generating unit is provided with a hydroxyl free radical generating facility, an air compressor, and an oxygen enricher; the liquid-liquid dissolving unit is provided with three liquid-liquid dissolving tanks and a residual gas eliminator; and the residual oxidant neutralizing unit is provided with a neutralizing agent storage tank.

The invention provides a microwave clothes dryer. The microwave clothes dryer comprises a housing opened at the front part for taking and putting clothes from the front portion, a microwave resonant cavity arranged in the housing, a microwave generating device configured to send microwaves into the microwave resonant cavity, a drum used for accommodating the clothes to be dried, an air inlet channel configured to guide environment air outside the housing into the microwave resonant cavity, an air outlet channel configured to exhaust humid and hot air in the microwave resonant cavity outside the housing, and a condensing heat exchanger, wherein the drum is rotatably arranged in the microwave resonant cavity and is provided with multiple through holes, the condensing heat exchanger is arranged between the microwave resonant cavity and the housing, and is configured to make the humid and hot air entering an air outlet channel exhausted outside the housing after being condensed. Therefore, the humid and hot air generated in the drying process can be exhausted after being condensed, and bad influence of humid air exhaust on an indoor environment is lowered.