130results about How to "Health threat" patented technology

Pig feed is disclosed. The feed is prepared from following components by weight: 40-50 parts of corn, 30-40 parts of wheat, 15-25 parts of soybean meal, 20-35 parts of sweet potato residue, 2-6 parts of lactic acid bacteria, 3-10 parts of yeast, 10-15 parts of medical stone, 10-15 parts of eggshell, 10-15 parts of shell powder, 20-30 parts of silene conoidea, 10-20 parts of cottonsedge-like thistle herb, 10-15 parts of sweet potato vine, 10-20 parts of purslane herb, 3-10 parts of composite vitamin, 10-25 parts of vegetable oil, 5-15 parts of isatis root, 5-15 parts of liquorice root, 5-15 parts of milkvetch root, 5-15 parts of medicated leaven, 5-15 parts of malt, 5-15 parts of hawthorn fruit and 5-15 parts of dried tangerine peel. The feed is reasonable in formula, comprehensive in nutrition, good in taste and high in feed absorption rate. By adopting a plurality of the proper raw materials and adopting reasonable using amounts, comprehensive nutrition of the feed is optimized, and three functions, namely functions of regulating feed palatability, increasing the lean meat percentage and boosting pig immunity are achieved.

The invention discloses a halogen-free and phosphorus-free PBT (polybutylece terephthalate) enhanced composite material and a preparation method thereof, and belongs to the technical field of composite flame-retardant enhanced materials. The halogen-free and phosphorus-free PBT enhanced composite material consists of the following components: 45-65 pats of PBT, 15-30 parts of glass fibers, 15-25 parts of a halogen-free flame retardant, 1-2 parts of a toughening agent, 0.1-0.2 part of a main antioxidant, 0.1-0.2 part of an auxiliary antioxidant, 0.1-1 part of a lubricating agent and 0.3-1.0 part of a nucleating agent. The preparation method comprises the steps of uniformly mixing PBT, the halogen-free flame retardant, the toughening agent, the main antioxidant, the auxiliary antioxidant, the lubricating agent and the nucleating agent according to the weight part to obtain a mixture, and performing melting, coblending and extruding granulation on the mixture and the glass fibers to obtain the halogen-free and phosphorus-free PBT enhanced composite material. The halogen-free and phosphorus-free PBT enhanced composite material prepared by the method is excellent in anti-separation performance, flame retardancy, mechanical property and creepage cracking resistance, does not release hydrogen phosphide poisonous gas and can totally meet a limiting requirement of Samsung on hydrogen phosphide emission concentration.

The invention relates to the technical field of leather and chemical industries, in particular to a silicone-containing amphoteric phosphate fatliquor and a preparation method thereof. The invention aims at providing the silicone-containing amphoteric phosphate fatliquor and the preparation method thereof so as to overcome the problem of affecting the leather color, the physical health of operators and non-ideal fatliquoring effect in the prior art. In order to achieve the purpose, the technical proposal is as follows: the silicone-containing amphoteric phosphate fatliquor is prepared by compounding the following raw materials based on parts by weight: 30-50 parts of polyether-modified polysiloxane phosphobetaine, 20-30 parts of phosphorylated castor oil, 20-40 parts of sulfited fish oil and 0.2-5.0 parts of aliphatic alcohol polyethenoxy ether phosphate. The silicone-containing amphoteric phosphate fatliquor has pale color, does not affect the leather color, has no irritating odor and poses no threat to the physical health of the operators. The fatliquoring leather has the advantages of leather fullness, fine grain surface, elasticity and softness and strong slipperiness; and the fatliquor has good fatliquoring effect.

The invention discloses a powder falling-resistant hydrophobic nano-aerogel heat-insulating sheet as well as a preparation method and a use method thereof. The preparation method comprises the following steps: step 1) mixing and immersing a glass fiber needled mat with a sol to obtain a sol glass fiber mat precursor; step 2) aging and surface-modifying the sol glass fiber mat precursor to obtain asol fiber mat; step 3) performing supercritical CO2 drying treatment on the sol glass fiber mat to obtain a hydrophobic nano-aerogel heat-insulating material; step 4) performing profile processing onthe hydrophobic nano-aerogel heat-insulating material to obtain a sized hydrophobic nano-aerogel heat-insulating material; and step 5) pasting a film on a surface of the sized hydrophobic nano-aerogel heat-insulating material to obtain the powder falling-resistant hydrophobic nano-aerogel heat-insulating sheet. Compared with a method for attaching a flexible coating to the surface adopted at present, the preparation method provided by the invention has advantages of low cost, high efficiency and simple industry, and well solves popularization and application of aerogel fiber mat products.

The invention provides a novel tensile strength testing device for a core sample. The novel tensile strength testing device comprises a sleeve with a pull board, a test piece fixing sleeve, a gasket and a pulling device, wherein the test piece fixing sleeve comprises a sleeve; the upper part of a sleeve wall of the sleeve is an inner thread part with uniform thickness; the inner thread part gradually becomes thick towards the lower side from the bottom and the section of the inner thread part is in a normal trapezoid shape; the gasket is composed of two semi-circular arc shapes with the same size, the thickness of the gasket is gradually reduced along the vertical direction and the section of the gasket is in a reversed trapezoid shape matched with the normal trapezoid shape of the lower part of the sleeve; the gasket sleeves the two ends of a test piece; after the test piece fixing sleeve sleeves the test piece, the two ends of the test piece are lifted so that the gasket and the test piece fixing sleeve can be mutually engaged to clamp the test piece; the sleeve with the pull board and the inner thread part of the sleeve are in thread connection; one end of the pulling device is hinged with the sleeve with the pull board; and the other end of the pulling device is hinged with a tension tester. With the adoption of the novel tensile strength testing device, preparation and treatment processes of sticking and pulling off the tensile test piece and the pull board, crushing the test piece, stripping off the pull board and the like are simplified, and the working efficiency is improved to the greatest extent.

The invention particularly relates to a green environmental-protection stemming for a taphole of a submerged arc furnace and a preparation method thereof. The preparation method comprises the steps: firstly, taking 45-65 wt% of bauxite, 5-15 wt% of kyanite, 5-15 wt% of fine quartz powder, 1-3 wt% of fine andalusite powder, 10-30 wt% of alumina micro-powder, 0.5-2 wt% of montmorillonite micro-powder, 1-2 wt% of fine elementary substance silicon powder, 0.5-1 wt% of earthy graphite micro-powder and 1-2 wt% of fine Ti3SiC2 powder as raw materials, then additionally adding 0.05-0.1 wt% of polypropylene fibers, 0.05-0.3 wt% of a retarder, 0.5-2 wt% of ZrOCl2.8H2O and 8-20 wt% of an aluminum dihydrogen phosphate aqueous solution according to the raw materials, wet-grinding for 15-30 min, and then extruding and molding by a mud extruder, and thus obtaining the green environmental-protection stemming for the taphole of the submerged arc furnace. The preparation method has low cost and environmental friendliness, and the prepared green environmental-protection stemming for the taphole of the submerged arc furnace has the advantages of high strength, good volume stability, excellent washing-out resistance, excellent corrosion resistance and repairability for the taphole.

The invention provides an automatic feeding crusher. The automatic feeding crusher comprises a feeding chamber, a crushing chamber and a receiving chamber, the feeding chamber is fixedly connected with the crushing chamber, the crushing chamber is fixedly connected with the receiving chamber, the bottom of the feeding chamber is provided with a feeding hole, the bottom of the crushing chamber is provided with a screen mesh, the center of the top of the crushing chamber is provided with a rotating shaft, the rotating shaft is provided with a blade, the blade is helical in shape and extends from the top of the rotating shaft to the bottom of the rotating shaft, the edge of the screen mesh is provided with an oscillators the center of the screen mesh is provided with a gravity inductor, and the gravity inductor is electrically connected with the feeding hole. The automatic feeding crusher has the advantages of time and labor saving, high safety coefficient, high working efficiency and good crushing effect.

The invention provides a method and a device for evaluating acute toxicity of a liquid fumigation agent to earthworms. The method includes following steps: 1), putting natural soil in a fumigation device; 2), regulating temperature and illumination intensity, and putting multiple earthworms on the surface of the natural soil in the step 1); 3), after all earthworms get into the natural soil, and adding the liquid fumigation agent into the natural soil; sealing the fumigation device, and performing fumigation treatment; 4), investigating death situation of the earthworms, calculating death rate of the earthworms, and evaluating the acute toxicity of the fumigation agent to the earthworms according to the death rate of the earthworms. The method has the advantages of accurate and reliable evaluation results, high repeatability, simplicity, convenience and quickness in operation and safety to operating personnel.

The invention discloses a multifunctional storage cabinet, which comprises a cabinet body, the cabinet body is a rectangular cavity structure, and an ultraviolet sterilizing lamp is installed on the inner wall of the top plate, and a set of opposite inner walls of the cabinet body are connected with hanging rods. A set of opposite inner walls of the cabinet body is connected with a placement board, and the placement board is located below the hanging rod, an air inlet hole is opened in the middle of the placement board, and drawers are symmetrically installed on both sides of the inner wall of the bottom board of the cabinet body. A hot air blower is fixed on the upper surface of the bottom plate of the cabinet, and the hot air blower is located between two groups of drawers. The air outlet of the hot air blower is connected with a pipe, and the end of the pipe away from the hot air blower is connected with an air inlet. In the present invention, the clothes in the cabinet can be dried, which can effectively prevent the clothes in the wardrobe from being damp for a long time, and the ultraviolet germicidal lamp realizes the disinfection function of the clothes in the cabinet, preventing the clothes from breeding bacteria; and the size of the inner space of the cabinet can be adjusted. Adjustable, easy to place items of various sizes, high applicability.

The invention provides a shower and a water heater with the same. The shower comprises a shower handle, a shower head, a sterilizing lamp member and a water pipe connector, wherein the shower handle comprises a first containing space and a second containing space which are communicated; the shower head is connected on the opening end of the first containing space of the shower handle in a sealed mode, and a water outlet is formed in the shower head; the sterilizing lamp member is placed in the second containing space and comprises an ultraviolet sterilization lamp, and the ultraviolet sterilization conducts sterilization treatment through water in the second containing space; the water pipe connector is connected to the opening end of the second containing space in a sealed mode; By means of the shower in the technical scheme, the problems that in the prior art, a shower cannot meet the human requirements for the safe and healthy shower can be solved.

The invention relates to the technical field of printing ink, in particular to a preparation method of water-based flexographic printing ink. The preparation method adopts the following raw materialsin parts by weight: 55-65 parts of water-soluble acrylic resin, 45-50 parts of water-based pigment, 2-4 parts of ethanol, 0.5-1.2 parts of polydimethylsiloxane, 1-1.5 parts of sodium lignin sulfonate,0.3-0.5 part of a defoamer CW-0601, 0.5-1 part of an antibacterial agent, 0.5-1 part of a wax emulsion, 2-3 parts of a triethanolamine buffer agent, 3-5 parts of sodium alginate and 50-60 parts of water. The water-based flexographic printing ink prepared by the method is safe and environment-friendly, and has strong coloring effect, high drying speed, good water resistance and wear resistance, low production cost and good storage stability.

The invention provides a hydrophobic plastic film and a preparation method thereof. The preparation method comprises the following steps of polishing a metal sheet, and cleaning the polished metal sheet; performing sand blasting treatment on the cleaned metal sheet; laminating a plastic plate above the sand-blast metal sheet, and performing stamping treatment; and demolding the stamped plastic plate to obtain the hydrophobic plastic film. The plastic film prepared according to the preparation method has the advantages that the hydrophobicity of the plastic film can be effectively improved, andthe adhesion problem of viscous fluid to the surface of the plastic film is effectively solved.

The invention provides an alarm method. The method comprises the steps of obtaining a health information search instruction, wherein the health information search instruction carries a preset search distance; obtaining the distance between the at least one target terminal and the mobile terminal and target user health information stored in the at least one target terminal within a preset search distance according to the health information search instruction, and then, giving an alarm to the user according to the distance and the health information of the target user. When the user of the mobile terminal is in an environment which is not easy to be healthy, the mobile terminal can timely give an alarm to the user so as to prevent the health of the user from being threatened.

The invention discloses a high-safety electric saw special for felling. The electric saw comprises a strip-shaped plate, two symmetrically-arranged supporting frames are arranged at the left end of the lower surface of the strip-shaped plate, first clamping pieces of the supporting frames are fixedly connected to the lower surface of the strip-shaped plate, a bottom plate is arranged at the fixedends of first electric telescopic rods of the supporting frames, four evenly-distributed trundles are arranged on the side face of the bottom plate, and an adjusting frame is arranged at the right endof the upper surface of the bottom plate. The high-safety electric saw special for felling is convenient to move, convenient to fix and good in stability, can be limited and fixed; the inclination angle and the height of the electric saw can be adjusted; and the position of the electric saw can be indirectly adjusted through the driving device, so that the electric saw can complete felling work,damage to the health of a feller due to close-range operation of wood chips can be avoided, meanwhile, threats to the health of the feller when trees topple over can be avoided, safety is high, and use is convenient.