41results about How to "Reduce production burden" patented technology

The invention relates to a technique for refined production of antiacid pipeline steel through VD-LF-VD. According to the technique, elements of molten steel are controlled by utilizing a converter crude refining and RH-LF-RH refining technique to produce low-carbon low-sulfur antiacid (HIC-resisting and SCC-resisting) pipeline steel. The technique comprises the following specific flow of: molten steel pre-desulfurization, converter smelting, first VD vacuum refining, LF refining desulfurization, second VD vacuum refining and continuous casting. By utilizing the second VD vacuum refining technique, the technique for the refined production of the antiacid pipeline steel through the VD-LF-VD, disclosed by the invention, has the advantages of reducing decarburization load of the converter and oxidability of the molten steel, eliminating negative influence of carbon increase in an LF refining process, reducing the use of a strong deoxidizer, stabilizing production, ensuring that the elements of the molten steel are stably controlled within production targets, and meeting requirements of the antiacid pipeline steel on low carbon, low sulfur and high-purity element control. Through finished-product steel produced by the technique disclosed by the invention, the content of carbon can be stably controlled to 0.03-0.04%, and the content of sulfur can be stably controlled to be smaller than or equal to 0.0010%.

The invention discloses a ceramic tile structure with concave-convex textures and a manufacturing process thereof. The manufacturing process is characterized by comprising the following steps: (1) manufacturing a ceramic tile green body, drying, and cooling to the room temperature; (2) glazing the ceramic tile green body through glazing equipment; (3) spraying mold ink on the surface of the ceramic tile green body obtained in the step (2) through a ceramic ink-jet printer, matching the path of the mold ink with a pre-designed pattern, glazing again along the position of the mold ink, baking, and cooling; (4) coloring the surface of the brick body obtained in the step (3) by using the ceramic ink-jet printer, wherein the coloring ink layer covers the second glaze layer; and (5) firing in akiln; wherein the mold ink in the step (3) comprises the following components: an ester solvent, fatty acid methyl ester, a ceramic mixture, a hydroprocessing medium fraction, a polymer dispersant andaluminosilicate. Convex lines are formed by spraying the mold ink, the concave-convex stereoscopic impression of the surface of the ceramic tile is achieved, the sense of reality is better, the construction is convenient, the efficiency is high, and the cost is low.

The invention discloses a process for producing an anti-acid pipeline steel by Ruhrstahl Heraecus (RH)-ladle furnace (LF)-RH refining. In the process, the composition of molten steel is controlled by converter smelting and RH-LF-RH refining process, so as to produce a low-carbon low-sulfur anti-acid (hydrogen-induced cracking HIC and stress corrosion cracking SCC resistant) pipeline steel. The specific flow is as follows: pre-desulphuzation of molten steel - converter smelting-primary RH vacuum refining - LF refining desulphuzation - secondary RH vacuum refining - continuous casting. By the secondary RH vacuum refining process, the decarburization burden of the converter and the oxidability of the molten steel can be reduced, and the adverse effect caused by recarburization in the LF refining process can be eliminated; furthermore, the use of a strong deoxidizer is reduced, the production is stabilized, and the composition of the molten steel is ensured to be controlled within a production target stably to meet the control requirements of the anti-acid pipeline steel on the low-carbon low-sulfur and high-purity composition. The carbon content of the finished steel produced by the process of the invention can be stably controlled to be 0.03% to 0.04%, and the sulfur content is stably controlled to be less than or equal to 0.0010%.

The invention discloses a harmless treatment process and equipment for kitchen wastes, fruit and vegetable wastes and vegetable market wastes. The harmless treatment process comprises the steps of material pretreatment, oil-water separation, product prouduction and the like. Crude oil produced after materials are subjected to oil-water separation can be used as a raw material to be processed into biodiesel, and a filtrate produced by oil-water separation is subjected to anaerobic treatment to produce methane used as a heat source during oil-water separation, so that the harmless treatment process has the advantages of simple process steps, high automation degree and the like and can be used for effectively sorting inorganic matter impurities and grease in organic matters, relieving the production burden of the final anaerobic treatment, reducing the work strength of a worker and achieving a certain economic benefit.

The invention discloses a method for calculating a concentration of an interfered element through measurement intensity and concentration of an element. The method comprises the following two correction models: (1) spectra overlap correction model and (2) spectra overlap-self-absorption correction model. The method has the beneficial effects of high analytical precision and good stability.

The invention provides a weather-resistant matt polycarbonate regenerated material and a preparation method thereof. The weather-resistant matt polycarbonate regenerated material is prepared from thefollowing raw materials in percentage by mass: 3 to 15 percent of first polycarbonate recycled crushed materials, 60 to 83 percent of polycarbonate recycled crushed materials, 3 to 10 percent of thirdpolycarbonate recycled crushed materials, 10 to 25 percent of matte surface agents, 0.2 to 1.0 percent of antioxidants, 0 to 0.6 percent of light stabilizing agents and 0.1 to 1.0 percent of ultraviolet absorbents. Through the addition of the matte surface agents, the antioxidants, the light stabilizing agents and the ultraviolet absorbents, the weather resistant performance of polycarbonate is improved; the processing performance is improved; the modified material with stable melt index is obtained; the performance is similar to that of a new material.

The invention discloses a method for calculating a concentration of an interfered element through calculated concentration of an element. The method is characterized by comprising the following two correction models: (1) spectra overlap correction model and (2) spectra overlap-self-absorption correction model.

The invention discloses a demister for a wet desulphurization tower, which comprises a plurality of demisting blades arranged side by side, each demisting blade is vertically arranged, and each demisting blade is divided into a plurality of demisting sections with the same length from bottom to top; the vertical cross section of each demisting section is of an arc structure, and the circle centersof the arc structures on the adjacent demisting sections are located on the two sides of the corresponding demisting blade in a staggered mode. A traditional baffle plate is improved to be of a novelarc structure, the demisting effect can be greatly improved, the liquid drop trapping efficiency reaches 96.5% and is far higher than 85% of that of the traditional baffle plate, and therefore the demisting efficiency is improved. The overall investment cost is low, and the production burden is not increased. The invention discloses the wet desulphurization tower.

The invention provides production equipment for dissipated metal fine powder. The production equipment comprises a lifter, a crusher, a rough grinding machine, a material conveyor, a fine grinding machine and a screening machine, wherein the lifter ascends and descends in the up-down direction; the crusher is arranged on one side of the lifter so as to crush blocky dissipated metal raw materials;the rough grinding machine is connected to the crusher so as to carry out rough grinding on blocky dissipated metal; the material conveyor is connected between the rough grinding machine and the finegrinding machine and is used for automatically conveying dissipated metal particles to the fine grinding machine; the fine grinding machine is connected to the rough grinding machine and is used for carrying out fine grinding on the dissipated metal particles, and the dissipated metal fine powder with different particle sizes and different proportions is obtained through fine grinding in the finegrinding machine; and the screening machine is connected to the fine grinding machine so as to screen out the dissipated metal fine powder meeting the production requirements from the dissipated metalfine powder obtained through fine grinding. The production equipment for the dissipated metal fine powder is integrally and automatically operated, the production burden of single equipment is reduced, the production efficiency of the dissipated metal fine powder is improved, and the dissipated metal fine powder which meets requirements and has different particle sizes and different proportions can be obtained in the fine grinding machine.

The invention discloses a formula and a production process of a multifunctional bio-organic fertilizer. The organic fertilizer is prepared from the following raw materials in parts by weight: 20 to 30 parts of straw, 15 to 20 parts of dry animal waste, 5 to 10 parts of duckweed, 5 to 10 parts of water, 3 to 5 parts of plant ash, 0.5 to 1.5 parts of EM bacterial liquid, 0.5 to 1.5 parts of cane sugar, 15 to 20 parts of sawdust, 15 to 20 parts of vinasse residue and 25 to 30 parts of pond sludge. The production process includes the following steps: 1, weighing the raw materials in parts by weight; 2, crushing the straws until the length is less than 0.8 cm; 3, uniformly mixing the crushed and sieved raw materials to obtain a mixture; 4, pouring cane sugar into water, adding the EM bacterial liquid after the cane sugar is dissolved, spraying the mixture onto the mixture after being evenly stirred and uniformly stirring the components; 5, drying and crushing the fertilizer obtained by fermentation. According to the invention, the problems of recycling of crop straws and treatment of poultry manure are solved, and the burden of related departments for governing straw combustion is reduced; meanwhile, the production cost of the multifunctional bio-organic fertilizer is reduced, and the production burden of farmers is relieved.

The invention discloses a non-invasive delivery assistance guiding device, which comprises a fetal heart rate monitoring unit and a sensor connected with the fetal heart rate monitoring unit. The prompting unit is used for prompting when the parturient starts to exert force; the microprocessor is respectively connected with the prompting unit and the sensor. An air pump and a suction cup connectedwith the air pump through a pipe. The invention also provides a non-invasive delivery type delivery guidance method, which can intelligently cooperate with the uterine contraction of the parturient to adjust the force size and the force application time, meanwhile, the suction cup realizes the non-destructive labor induction to the fetus, lightens the production burden of the parturient, and ensures the smooth delivery even if the parturient is in the uterine contraction inertia state or other extreme cases. The provided non-invasive delivery assistance guidance device and guidance method thereof have the functions of real-time monitoring, real-time adjustment and real-time intelligent voice prompting, and can basically cancel the conventional perineotomy, greatly reduce the perineotomy rate, and can reach the goal of improving the quality of life of parturients.

The invention discloses a modifying method of a vanadium catalyst for preparing sulfuric acid through sulfur dioxide. The method includes: combining Pr doping with a hydrothermal process to modify thevanadium catalyst. The method has the advantages that the method is low in modifying cost, nontoxic and harmless in modifying process and conducive to large-scale production, and the vanadium catalyst after being modified is high in catalytic activity.