78results about How to "Strong wrapping" patented technology

The invention discloses a dust-suppression foaming agent used for coal mine excavating work surfaces. The dust-suppression foaming agent comprises the following raw material ingredients in percentage by weight: 15 to 20 percent of sodium dodecyl benzene sulfonate, 20 to 25 percent of lauryl sodium sulfate, 2 to 4 percent of wetting agent, 1 to 3 percent of foam improver, 1 to 2 percent of sodium cellulose glycolate and 50 to 60 percent of water. All ingredients are proportionally mixed and uniformly stirred at the room temperature. The generation of dust can be suppressed from a source. The invention can effectively prevent the diffusion of the dust and inhabit the occurrence of pneumoconiosis for easy-dust-generation operation places such as work surfaces of integrated mining and integrated excavating. The foam is fine and has small grain diameter and high viscosity, the dust grains with small grain diameter can be easily humidified, the absorption performance on the dust is strong, the foam coverage surface is wide, foaming times are high, the maximum foaming times can reach 12 times, the dust suppression efficiency on full dust is as high as 96 to 99 percent, and the dust suppression efficiency on respiratory dust is as high as more than 90 percent.

The invention discloses cationic lipid containing peptide dendrimer, a transgenic carrier, and a preparation method and application of the transgenic carrier. The transgenic carrier has low cell toxicity, can effectively retard and coat pEGFP-N1 plasmid or pGL3 plasmid, and is high in coating capacity. As the average particle size of a compound of the transgenic carrier with the pEGFP-N1 plasmid or pGL3 plasmid ranges from 80 nm to 200 nm, and the Zeta potential is within the range of 5-50mV, the transgenic carrier is quite suitable for gene transfection. When the compound formed of the transgenic carrier and the pEGFP-N1 plasmid or pGL3 plasmid is used for gene transfection of cells HepG2, MCF7 and B16F10, good transfection capacity is achieved, the transfection capacity is higher than that of the commercial product PE125K on the condition of transfection optimization, and the transfection advantage is much superior on the condition with serum existence.

The invention relates to the technical field of knitted vamps, in particular to a knitted vamp with suspended floating thread weave. The knitted vamp includes a vamp body that includes first knitted weave and second knitted weave, wherein the first knitted weave includes a first surface layer and a first bottom layer knitted below the first surface layer; the second knitted weave includes a suspended floating thread layer, one end of the suspended floating thread layer is connected with the first surface layer or / and the first bottom layer, and the other end of the suspended floating thread layer is connected with the first surface layer or / and the first bottom layer; and the first knitted weave and the second knitted weave form the vamp body together. Colored yarn is adopted to weave the first surface layer and the first bottom layer, the thermoplastic yarn or the elastic yarn are adopted to weave the suspended floating thread layer in the vamp, the two ends of the suspended floating thread layer are connected with the first surface layer or the first bottom layer, and the middle part of the suspended floating thread layer is completely suspended, so that the decorative effect is achieved; and the vamp is good in air permeability, high in wrapping performance and high in perspective sense.

The invention provides single-sided weft-knitted fabric with the cross-stripe effect. The single-sided weft-knitted fabric comprises a fabric body with the cross-stripe structure, the cross-stripe structure is formed by first coil rows and second coil rows, the first coil rows and the second coil rows are longitudinally and alternatively arranged, each second coil row behind each first coil row performs 1-stitch displacement, the first coil rows are composed of coils by knitting of three continuous cross-row looped coils protruding the front side of the fabric body, the second coil rows are formed by alternative knitting of looped coils of two cross-row coils protruding the front side of the fabric body and one longitudinal floating-thread stretched coil, the first coil rows are woven by cationic polyester filament and spandex in a doubling manner, and the second coil rows are knitted by half-matting polyester filament. Compared with the prior art, the single-sided weft-knitted fabric has the advantages of remarkable stripe experience, good cross elasticity and extension, good resistance to pilling and the like. The invention further provides a production method of the single-sided weft-knitted fabric with the cross-stripe effect.

The invention discloses a composite retaining structure suitable for a deep tunnel of a clastic schist layer and a construction method thereof. The composite retaining structure comprises a forepoling, a tunnel steel arch and a shotcreting mesh combined support, wherein the forepoling comprises a plurality of tunnel face fiber anchor rods which are perpendicularly driven on a tunnel face, multiplesections of advanced small guide pipe supports and a grouting reinforcement area, the plurality of tunnel face fiber anchor rods completely cover the tunnel face, each section of the advanced small guide pipe support is composed of a plurality of advanced small guide pipes, the overlapping length of each section of the advanced small guide pipe support is not less than 1 m or 1 / 4 L of the guide pipes in the tunnel excavation direction, each section of the advanced small guide pipe support, i.e. the plurality of advanced small guide pipes, is driven on the arch of the tunnel face within the range of 120 degrees, and the grouting reinforcement area is formed in a way that the tunnel face fiber anchor rods and tunnel face surrounding rocks in an area in which the advanced small guide pipes are arranged are grouted. According to the composite retaining structure, the stable tunnel face is effectively guaranteed, the collapse of an excavation face is prevented, the deformation of the support is effectively controlled, the safety in construction is guaranteed, and the construction efficiency is improved.

The invention relates to a method for preparing ferric hydroxide-based raw materials containing high value elements, belonging to the technical field of resource recycling and wet metallurgy. The preparation method comprises the following steps: burdening, reacting and drying iron-based wastes, thereby preparing the ferric hydroxide-based raw materials containing high value elements comprising hydroxides of iron, high value element compounds and combustible organic matters, wherein the iron and high value elements mainly refer to hydroxides. The product prepared by the invention is powder or breakable agglomerate, is not subjected to spontaneous combustion at the temperature of less than or equal to 200 DEG C, and has the advantages of texture uniformity, difficulty in spontaneous combustion, convenience in use, safety, low consumption of chemical raw materials, high value element dissolution rate and the like. The fire risk of iron-based wastes in the transport, loading and unloading, storage and production processes is eliminated. The preparation method and equipment are simple, easy control is realized, the reaction heat is fully utilized, the reaction speed is high, the security and stability are high, the treatment capacity is high, the production cost is low, the consumption of power, manual labor and energy is greatly saved, and the method is suitable for industrial production.

The invention relates to a coating, and provides a fireproof coating and a preparation method thereof. The total weight of the fireproof coating is 100%, the fireproof coating is prepared from 65 to 79 percent of polycarbonate polyurethane emulsion; 0.5%-1.5% of a wetting dispersant; 0.5%-2.0% of a defoaming agent; 0.5%-1.5% of a polyurethane thickening agent; 0.1%-0.3% of a cellulose thickener, 0.5%-1% of a wetting leveling agent, 0.2%-0.5% of an adhesion promoter, 0-1.5% of matting powder, 0.3%-0.8% of an anti-settling aid, 3%-7% of a coalescing agent, 0.2%-0.5% of a bactericidal mildew preventive, 11%-20% of a flame retardant and 1%-13% of water, wherein the adhesion promoter is selected from a polysiloxane-free non-ionic compound. The fireproof coating has good dispersing performance,storage performance and rheological property, and a paint film formed by the fireproof coating is flat and smooth, excellent in adhesive force, good in flame retardant property, strong in wrapping property, high in hardness and good in chemical resistance.

The invention relates to a high value element-containing and iron hydroxide-based raw material and application thereof, and belongs to the technical field of resource recycle and hydrometallurgy. The high value element-containing and iron hydroxide-based raw material mainly comprises iron hydroxide, high value element compounds and combustible organic matters, wherein in terms of element, iron accounts for 3.5-45wt%; in terms of oxides, high value elements account for 2-32wt% altogether and Y (Fe3+) / TFe accounts for more than or equal to 54.47wt%; in terms of C, combustible organic matters account for less than or equal to 6.5wt%; the iron hydroxide-based raw material does not combust spontaneously at the temperature of lower than or equal to 200 DEG C. The high value element-containing and iron hydroxide-based raw material is powdery or in form of an easily-crushed briquette and has the advantages of being homogeneous in structure, unlikely in spontaneous combustion, convenient and safe in use and the like; fire hazards during transportation, loading and unloading, storage and production of an iron-based waste material are prevented and safe production is achieved; during using, the dissolution rates of the high value elements are high and the high value elements can be prepared into different products, so that the maximized utilization of resources is achieved and the development of circular economy is benefited.

The invention provides an organic piston ring carbon removal repairing agent, which is characterized by comprising the following components in parts by mass: 50-80 parts of a carbon deposition dissolving agent, 5-20 parts of a purification dispersing agent, 1-5 parts of an ester type lubricating tackifier, 1-10 parts of a solvent type surfactant, 1-2 parts of an oil stain disintegration accelerantand 0.1-1 part of an auxiliary agent. The organic piston ring carbon removal repairing agent can effectively remove combustion chamber deposited carbon in a cylinder cover, a piston top and a pistonring groove, clean and release a piston ring, recover the elasticity and cylinder pressure of the piston ring, and recover the stuck piston ring. The problems of knocking, poor heat dissipation, insufficient cylinder pressure, high engine oil consumption and the like are solved.

The invention discloses a self-adaptive wall-climbing robot for a complex environment. The robot comprises a robot body, porous self-adaptive suckers, an air distribution mechanism and a vacuum generation mechanism. The porous self-adaptive suckers are densely distributed on a crawler belt. Each porous self-adaptive sucker comprises a porous flexible adsorption plate, a bottom plate, a differential pressure one-way valve cavity, a rectangular boss, a vacuum adsorption pipe, a fixing plate, a sliding block, a large anti-skid nut, a fixing bolt and a small anti-skid nut. The air distribution mechanism comprises an air distribution groove, and the crawler belt is always fixed by negative pressure in the air distribution groove in the moving process and is tightly attached to the bottom of theair distribution groove. The porous self-adaptive suckers on the crawler belt move along with the crawler belt to dynamically seal the two ends of the air distribution groove, the vacuum generation mechanism is used for vacuumizing to generate negative pressure during adsorption, and an air distribution scheme that the porous self-adaptive suckers on the wall-climbing robot make full contact withan uneven surface and the suckers are distributed to a portion making contact with the ground at a fixed point can be achieved. And a gas loss of the vacuum generator can be effectively reduced.

The invention discloses a cationic lipid containing peptide dendrimers, a transgene carrier, a preparation method and application thereof. The transgenic carrier of the present invention has very low cytotoxicity, can effectively block and wrap pEGFP-N1 plasmid or pGL3 plasmid, and has strong wrapping ability, and the complex of the transgenic carrier of the present invention and pEGFP-N1 plasmid or pGL3 plasmid averages The particle size is between 80-200nm, and the Zeta potential is between 5-50mV, which is very suitable for gene transfection. Transfection of HepG2, MCF7, and B16F10 cells with the complexes formed by the transgenic vectors of the present invention and pEGFP-N1 plasmids or pGL3 plasmids all showed good transfection ability, and the transfection ability exceeded commercially available under optimized transfection conditions. PEI25K has a more prominent transfection advantage in the presence of serum.

The invention belongs to the technical field of livestock breeding, and particularly relates to a livestock veterinary disinfection spraying device which comprises a first valve installed on a disinfectant inlet pipe of a disinfector body, and a second valve is further arranged on the other disinfectant inlet pipe of the disinfector body. The two valves are connected through the connecting rod, the combined pin and the limiting hole, the opening angle of the two valves can be synchronously adjusted according to the actual use condition, quantitative and synchronous output of spraying medicine is achieved, the disinfection spraying uniformity is improved, and the guiding and stability improving effects are achieved by arranging the guiding base and the guiding block for auxiliary adjustment at one end of the connecting rod; by arranging the buffering backup plate, the wrapping performance of the equipment and the human body is higher, the use comfort is improved, the heat dissipation strips are arranged at the end, close to the human body, of the buffering backup plate, the heat dissipation strips have the heat dissipation effect on the basis of the buffering backup plate, the use comfort is better improved, and long-time work is better facilitated.

The present invention relates to a shell nitrogen-fixing slowly-released composite fertilizer. It is characterized by that its composition includes the following components: (by wt%) 5-10% of organic diatomite, 6-10% of calcium sulfate, 6-10% of general calcium perphosphate, 23-35% of monoammonium phosphate, 10-20% of potassium chloride and 23-33% of urea.

The invention relates to a magnesium-neodymium intermediate alloy and a preparation method thereof, and belongs to the technical field of metal materials and metallurgy. The magnesium-neodymium intermediate alloy comprises the following raw materials including, by weight, 10-15 parts of magnesium powder, 10-15 parts of neodymium powder and 0.1-0.15 part of a multi-element refining agent. The magnesium powder is added into a smelting furnace, a protective flux is added, slagging-off is conducted, the neodymium powder is added after slagging-off, the temperature is increased to 1050 DEG C after complete adding, the multi-element refining agent is added, the protective flux is added again after the temperature is increased to 1100 DEG C, secondary slagging-off is conducted, and a smelting material is prepared; brewing and boiling are carried out; ingot casting is carried out; testing is carried out; and carbon powder can serve as a pore-forming agent to decompose and release gas, on one hand, part of hydrogen in molten metal is taken away, on the other hand, nano-calcium-based powder is sintered at the temperature, a large number of porous structures are generated, the specific surface area of the nano-calcium-based powder is increased, the excellent adsorption performance is achieved, residual hydrogen and impurities in melt can be adsorbed, and the effects of refining and impurity removal are achieved.

The invention discloses a lithium battery electrolyte, a preparation method thereof, and a lithium ion battery, and belongs to the field of lithium batteries. The raw material formula of the lithium ion electrolyte providing good low temperature performance and high electricity conductivity comprises an electrolyte matrix and a polymer monomer, and the polymer monomer contains at least one naphthalene ring monomer containing an amino group and at least one monomer containing two carboxyl groups.

The invention provides a shield pipeline guide device. The device comprises a plurality of sets of guide carrier rollers, the guide carrier rollers are movably installed on an installation frame in parallel, the installation frame comprises a base, a rotating mechanism is movably arranged on the base, a first limiting mechanism is movably installed on the rotating mechanism, and the rotating mechanism and the first limiting mechanism are connected with the guide carrier rollers through a second limiting mechanism. According to the device, the guide carrier rollers are installed on the installation frame, so that when a bottom plate rotates, the guide device can deflect in the driving direction of a hose under the condition of not moving the base, and self-adaptive guide is achieved; and meanwhile, arc-shaped supporting plates can limit the guide carrier rollers to move up and down, so that the guide carrier rollers are not prone to getting stuck in the using process.

The invention discloses a method for personalized customization of a protector product. The method comprises obtaining a corresponding three-dimensional model through three-dimensional scanning of a protected part of a user and a circular three-dimensional weaving method for continuous spun yarn of a novel mechanical intelligent material. A three-dimensional model is obtained through three-dimensional scanning of the protected part of the user and serves as a basis for designing arrangement of yarn carriers of all weaving planes in three-dimensional weaving, and then circular three-dimensional weaving of continuous spun yarn of the novel mechanical intelligent material is conducted according to the designed arrangement of the yarn carriers of all the weaving planes, so that the protector product prepared from the novel mechanical intelligent material is obtained. According to the method for personalized customization of the protector product, the novel mechanical intelligent material, the three-dimensional scanning technology and the circular three-dimensional weaving technology are combined, and a foundation is laid for the good effect in functional performance of the protector product from the aspects of material, forming method and the matching degree to the user.