34results about How to "No occurrence" patented technology

The invention relates to a solid-phase extraction material and a preparation method and application thereof, and belongs to the field of solid-phase extraction. The preparation method comprises the steps that monomers N-vinyl pyrrolidone and divinylbenzene are pre-polymerized in the presence of a chain transfer reagent and then dropwise added into an emulsion of monodisperse seed microspheres, then swelling and reacting are conducted, and white spheres are prepared; the white spheres are subjected to a reaction of introducing functional groups, and the solid-phase extraction material is obtained. The solid-phase extraction material prepared by the reaction is good in spheroidizing morphology, large in specific surface area and high in ion exchange capacity. According to the prepared solid-phase extraction material, in the process of separating and enriching PPCPs, various acting forces jointly play a role on substances, the extraction efficiency is high, meanwhile, the ionization degree of the substances or the extraction material can be controlled by adjusting the pH value of eluent in the elution process, and then the substances are selectively separated. Extraction experiment results show that the extraction recovery rate of the prepared solid-phase extraction material to substances is basically maintained between 85% and 105%, and acidic, alkaline, neutral and amphoteric substances can be selectively separated.

The invention discloses an anti-acid steel plate for steel structure work. The anti-acid steel plate for the steel structure work comprises, by weight, 0.27%-0.29% of C, 0.35%-0.37% of Mn, 0.17%-0.19% of Si, 0.006%-0.008% of P, 0.002%-0.005% of S, 0.03%-0.05% of Nb, 0.04%-0.06% of V, 0.15%-0.17% of Ti, 0.018%-0.019% of Al, equal and less than 0.06% of N, equal and less than 0.00020% of H, 0.022%-0.024% of Cu, 1.65%-1.67% of Ni, 0.54%-0.56% of Cr, 0.13%-0.15% of Mo, and the balance is Fe and inevitable impurities. The heating processing technology of normalizing-secondary normalizing-tempering is adopted to carry out heating processing, and the good toughness and the anti-acid property are provided.

The invention discloses an anti-corrosion steel plate for a shelf heavy beam. The anti-corrosion steel plate is prepared from the following components: 0.7-0.9 percent of C, 0.1-0.3 percent of Mn, 0.07-0.09 percent of Si, 0.006-0.008 percent of P, 0.002-0.004 percent of S, 0.043-0.045 percent of Nb, 0.07-0.09 percent of V, 0.5-0.7 percent of Ti, 0.13-0.15 percent of Al, smaller than or equal to 0.006 percent of N, smaller than or equal to 0.00020 percent of H, 0.07-0.09 percent of Cu, 3.7-3.9 percent of Cr, 0.43-0.45 percent of Mo, 0.07-0.09 percent of lanthanum, 0.03-0.05 percent of cerium, 0.05-0.07 percent of praseodymium and the balance of Fe. The anti-corrosion steel plate is strong in corrosion resistance, high in plasticity and excellent in low-temperature toughness and has the transverse yield strength to be larger than or equal to 220 MPa.

The invention discloses a medicament for treating breast cancer. The medicament comprises an orally-taken medicament and an externally-applied medicament, wherein the orally-taken medicament is prepared from the following material medicines: ginseng, prepared rehmannia root, lucid ganoderma, Chinese yam, schisandra chinensis, selfheal, oldenlandia diffusa, herba houttuyniae, brucea javanica, typhae pollen, cowherb seed, astragalus membranaceus, radix burpleuri, thunberg fritillary bulb, corydalis tuber, caulis spatholobi, caulis spatholobi, fruit of immature citron, edible tulip, curcuma zedoary, ligusticum wallichii, Chinese angelica, frankincense, herba leonuri, eclipta, citron peel and liquorice which are decocted in water; the externally-applied dug is prepared from the following material medicines: stiff silkworm, curcuma zedoary, ligusticum wallichii, Chinese angelica, thunberg fritillary bulb, platycodon grandiflorum, radix curcumae, turtle shell, achyranthes bidentata, caulis spatholobi, borneol, bee wax and sesame oil which are prepared into ointment. The effective rate for treating the breast cancer by the medicament disclosed by the invention is 100%.

The invention relates to a preparation method of a raw material of a polished tile blank, and belongs to the technical field of construction material preparation. According to the preparation method, plants are subjected to hyper-accumulation to obtain mixed metal ions; maleic anhydride is used to modify the surface of organic bentonite; the obtained mixed metal ions is combined to the surface of the organic bentonite through the action of a silane coupling agent; then the organic bentonite is carbonized to increase the strength; finally, the aluminum content is increased by adding aluminum ash; the condensation polymerization between silane happens in a high temperature environment in the presence of quartz sand and aluminum ash; a three dimensional net structure of bonds is formed, the high temperature viscosity is increased, the sintering temperature is raised; the problem that conventional polish tiles usually have defects such as deformations, pores, cavities, and the like is solved; the sintering temperature of polished tile prepared from the provided raw material is 1050 to 1150 DEG C, the sintering temperature is largely reduced and enlarged, and at the same time, the prepared polished tile does not have the defects (deformations, pores, or cavities), and can be widely applied to industrial production.

The invention discloses a composite cross-linked structure reinforced sludge coagulation modifier. The composite cross-linked structure reinforced sludge coagulation modifier comprises, by mass, 100 parts of a structural material, 1-3 parts of a reinforcing agent, 15-20 parts of a dehydrating agent, 1-3 parts of a coagulation agent, 0.5-3.5 parts of an accelerant, 2-4 parts of a dispersing agent and 0.5-1 part of a biocide. The invention also discloses application of the composite cross-linked structure reinforced sludge coagulation modifier in sludge treatment. All the components have strictaddition and mixing sequences in the application, and the sludge treatment effect is seriously influenced by improper addition. The composite cross-linked structure reinforced sludge coagulation modifier provided by the invention has good sludge reinforcement and modification effects on sludge, is simple and convenient in application method, and easy to construct, has no secondary pollutants in the application process, has good application and popularization value, meets various application requirements of sludge recycling, and has important significance in green treatment and application of sludge.

The invention provides an anti-acid steel plate for storage equipment and a preparation method of the anti-acid steel plate. The steel plate is prepared from the following components in percentage by mass: 0.31-0.33% of C, 0.45-0.47% of Mn, 0.07-0.09% of Si, 0.006-0.008% of P, 0.002-0.005% of S, 0.06-0.08% of Nb, 0.07-0.09% of V, 0.05-0.07% of Ti, 0.08-0.1% of Al, less than or equal to 0.006% of N, less than or equal to 0.00020% of H, 0.012-0.015% of Cu, 0.4-0.6% of Cr, 0.23-0.25% of Mo and the balance of Fe. According to the anti-acid steel plate, a reasonable two-phase ratio as well as fine ferrite and dispersively distributed pearlite of the steel plate can be obtained and the formation of banded structure is avoided; and without the banded structure, the acid resistance is improved.

The invention discloses high-strength load-bearing steel for a storage rack. The steel plate comprises the following components by mass percent: 0.27-0.32% of C, 0.21-0.33% of Mn, 0.05-0.07% of Si, 0.006-0.008% of P, 0.002-0.004% of S, 0.09-0.11% of Nb, 0.04-0.06% of V, 0.36-0.39% of Ti, 0.05-0.07% of Al, N less than or equal to 0.006%, H less than or equal to 0.0002%, 0.17-0.19% of Cu, 1.7-1.9% of Cr, 0.33-0.35% of Mo, 0.02-0.04% of lanthanum, 0.01-0.02% of cerium, 0.05-0.07% of praseodymium, and the balance of Fe and unavoidable impurities. According to the high-strength load-bearing steel disclosed by the invention, the transverse yield strength of the steel plate is greater than or equal to 230 MPa, and the steel plate is high in strength and excellent in low-temperature toughness.

The invention discloses an anti-acid steel plate for steel structure work. The anti-acid steel plate for the steel structure work comprises, by weight, 0.27%-0.29% of C, 0.35%-0.37% of Mn, 0.17%-0.19% of Si, 0.006%-0.008% of P, 0.002%-0.005% of S, 0.03%-0.05% of Nb, 0.04%-0.06% of V, 0.15%-0.17% of Ti, 0.018%-0.019% of Al, equal and less than 0.06% of N, equal and less than 0.00020% of H, 0.022%-0.024% of Cu, 1.65%-1.67% of Ni, 0.54%-0.56% of Cr, 0.13%-0.15% of Mo, and the balance is Fe and inevitable impurities. The heating processing technology of normalizing-secondary normalizing-tempering is adopted to carry out heating processing, and the good toughness and the anti-acid property are provided.

The invention discloses a weaving method for a full suture anchor, wherein the full suture anchor includes a suture and a flexible fixed knot, the flexible fixed knot is formed by weaving multiple strands of yarns, and a pre-knot is introduced during the weaving process of the flexible fixed knot. The suture thread is arranged so that the flexible fixed thread knot is at least a corresponding segment of the core-spun braided suture thread, and the flexible fixed thread knot and the suture thread can slide relative to each other to form an expansion anchoring portion. The weaving method of the full suture anchor of the present invention is formed by weaving yarns with knotted yarns and pre-set sutures, which can reduce human errors, avoid deviation and thread anchors during the threading process, and improve production efficiency and product quality. quality.

The invention relates to a nano-silicate anti-oxidation coating used for annealing a series of steel billets. The coating is composed of 20-30% composite binder, 8-12% composite phosphate curing Aluminosilicate filler composition. Its characteristics: 1. Temperature resistance 1500 ℃; 2. No surface treatment in any way. The surface of the direct-sprayed steel billet is solidified at room temperature for ten minutes, collides and rubs against each other, making it difficult to be soft and hard; 3. All kinds of steel billets sprayed are quenched in water for a few seconds before annealing and hot rolling. Bell paint is self-detaching, self-departing without leaving paint traces, and improves the surface quality; 4. It can reduce the loss on ignition of various steels; 6. It can also be used for surface protection of refractory materials for furnace linings in various fields; industrial and civil fields as internal and external Wall coatings; bridges, piers, dams and other metal structures in the field of cement construction are waterproof, anti-corrosion, anti-oxidation, and have the unique performance of seawater resistance.

The invention provides a steel plate for a storage rack to bear load. The steel plate is prepared from such components as 0.37-0.39% of C, 0.41-0.43% of Mn, 0.05-0.07% of Si, 0.006-0.008% of P, 0.002-0.004% of S, 0.09-0.11% of Nb, 0.04-0.06% of V, 0.7-0.9% of Ti, 0.05-0.07% of Al, less than or equal to 0.006% of N, less than or equal to 0.00020% of H, 0.17-0.19% of Cu, 1.7-1.9% of Cr, 0.33-0.35% of Mo, 0.02-0.04% of lanthanum, 0.01-0.02% of cerium, 0.05-0.07% of praseodymium, and the balance of Fe and inevitable impurities. The transverse yield strength of the steel plate is greater than or equal to 220MPa; and the steel plate is high in ductility and excellent in low-temperature toughness.

The invention discloses a method for preparing ammonium polyphosphate wrapped in low-viscosity microcapsules. After the addition, reflux reaction for 0.5~5h, then lower the temperature to 40~50°C, then add the end-capping agent dropwise, after the dropwise addition, keep the temperature for 0.5~3h reaction, cool to room temperature, then filter, wash with solvent, drain, and use Rake dryer, drying under reduced pressure for 6~24h to obtain ammonium polyphosphate powder wrapped in microcapsules. Compared with the uncoated ammonium polyphosphate, the microcapsule-coated ammonium polyphosphate prepared by the present invention has low viscosity, excellent fluidity and compatibility, low water solubility, high temperature immersion resistance, precipitation resistance, excellent electrical properties, etc. features. It can be used in polymer materials such as polyolefins, and can also be used in fabrics, epoxies and coatings.

The invention provides a knitter with a variable diameter telescopic pipe, belonging to knitters. The knitter comprises a plate, a take-up reel, a take-up reel carrier, spindles, legs, a knitter cross beam, a variable diameter telescopic pipe device, door angles and a spindle motor, wherein the legs are connected at the bottom of the plate; the knitter cross beam is connected above the plate; the take-up reel carrier above the knitter cross beam is connected with the take-up reel; the variable diameter telescopic pipe device is arranged below the take-up reel and is connected on the plate; the spindle door angles and the spindle motor are also connected on the plate; the spindles surround the variable diameter telescopic pipe device by a circle; the door angles are arranged in the plate; the spindle motor is arranged on the plate; the variable diameter telescopic pipe device comprises an up-and-down reciprocating device, a passing thread supporting and positioning device, a core fixing base and a rack; and the up-and-down reciprocating device is connected with the passing thread supporting and positioning device. The knitter has the advantages that the knitter replaces manual operation and has the effect of saving manpower and raw materials; the variable diameter pitch is uniform, no wastes appear, and the product randomly extends or shrinks without deformation; and the product quality and yield are increased.

The invention relates to a solid-phase extraction material, a preparation method and application thereof, and belongs to the field of solid-phase extraction. The preparation method comprises the steps of prepolymerizing monomers N-vinylpyrrolidone and divinylbenzene in the presence of a chain transfer agent, and then adding dropwise to monodisperse seed microparticles. In the emulsion of the spheres, the steps of swelling and reacting to prepare white spheres are further carried out, and the white spheres are subjected to the reaction of introducing functional groups to obtain the solid phase extraction material. The solid phase extraction material prepared by the reaction has good spherical shape, large specific surface area and high ion exchange capacity. The prepared solid-phase extraction material works together with various forces in the process of separating and enriching PPCPs, and the extraction efficiency is high. At the same time, adjusting the pH of the eluent during the elution process can control the ionization degree of the substance or the extraction material. The substances are then selectively separated. The extraction experiment results show that the extraction recovery rate of the prepared solid phase extraction material is basically maintained between 85% and 105%, and acidic, basic, neutral and amphoteric substances can be selectively separated.

The invention provides a variable diameter telescopic pipe device of a knitter, belonging to knitters. The device comprises an up-and-down reciprocating device, a passing thread supporting and positioning device, a core fixing base and a rack, wherein the up-and-down reciprocating device is connected with the passing thread supporting and positioning device; the lower end of a core pipe of the passing thread supporting and positioning device passes through the core fixing base and the rack and is connected with the rack by the core fixing base; a motor of the up-and-down reciprocating device is connected with a moving part by a moving rod lifter; a thread passing convex cap is connected at the upper end of the core pipe of the passing thread supporting and positioning device; a core sleeve is arranged below the thread passing convex cap; a core fixing rod is connected in a blind hole at the upper end of the moving rod; the core sleeve is arranged in the core pipe and is connected outside the moving rod in a sleeving manner; the core fixing rod is connected in the blind hole of the moving rod in a sleeving manner; and a fastener pushes against the core fixing rod by passing through the core pipe, the core sleeve and a sliding chute of the moving rod. The device has the advantages that the device replaces manual operation and has the effect of saving manpower and raw materials; the variable diameter pitch is uniform, no wastes appear, and the product randomly extends or shrinks without deformation; and the product quality and yield are increased.

The invention relates to a covering-type silt prevention cover plate of an immersed tunnel gravel foundation bed. The covering-type silt prevention cover plate of the immersed tunnel gravel foundation bed comprises a frame, wherein a plurality of ballast water tank bodies into which water can be filled and from which water can be drained are arranged in the frame, and lifting points are arranged on the frame. A plurality of canvas bags for containing silt are arranged above the ballast water tank bodies, a cover plate installation vessel comprises two floating bodies, the tops of the floating bodies are connected through a portal frame, lifting hooks are arranged on the portal frame, a lifting machine is arranged on the floating bodies, and desilting equipment is arranged on the cover plate installation vessel. By adopting the cover plate covering-type silt prevention scheme, the foundation bed can be fully covered, the complete isolation between the silt and the foundation bed is realized and the quality of the foundation bed is guaranteed; foreign objects falling onto the foundation bed during construction directly fall onto the cover plate and can be prevented from occurring on the foundation bed; since full-coverage silt prevention is adopted, the flattening operation of the foundation bed can be performed in advance and the construction progress is accelerated; no destruction is caused to the foundation bed and the integrity of the foundation bed is guaranteed.