33 results about "Iron levels" patented technology

A gating system capable of solving inner runner inflow unevenness comprises a straight runner, a transverse runner and inner runners. The upper end of the straight runner is used for being connected with a pouring basin, and the lower end thereof is connected with the transverse runner. The transverse runner is a horizontal passage vertical to the straight runner. The upper surface of the transverse runner is a plane, the lower surface of the transverse runner is stepped, the longitudinal section of the transverse runner is variable, and the longitudinal section area gradually decreases from one end, close to the straight runner, to one end, away from the straight runner. The inner runner is vertical to the transverse runner. During cast pouring, molten iron flows slowly in the transverse runner, molten iron level rises stably, the molten iron reaches the inner runners at the same time and enters the inner runners at the same time, stable and even flow speed is achieved, molten iron splashing and jetting are avoided, risks of curling up and sand cut are lowered greatly, reliable cast quality is achieved, and yield is increased greatly.

The invention relates to a recycling method of casting slag, which comprises the steps that headroom control of a molten iron level in a molten iron jar requires that a distance from a jar port to the level is greater than 500mm; the molten iron jar is fixed at a recycling jar seat by a cross trolley and a molten steel receiving span sequentially; the continuous casting slag is collected by the molten iron jar; the waiting time of the molten iron jar does not exceed 2h; the molten iron jar passes through the cross trolley vehicle and the molten steel receiving span sequentially; molten iron in the molten iron jar is added to converters; converter smelting adopts single-slag operation; and finally molten steel is produced. The recycling method has the advantages that liquid slag recycling is limited by a production rhythm, so that about 10 jars of slag can be recycled every day; the continuous casting liquid slag is recycled to the molten iron jar and then added to the converters, and the liquid slag contains a part of free CaO and Al2O3, so that a part of slag and CaO can be provided; early melting of pre-slag of the converters is facilitated; the adding quantity of lime is reduced; the remnant molten steel after casting is recycled; and the production cost is saved.

The invention discloses a method for improving the metallization rate of a metallurgical slag pellet. The method comprises the following steps: (1) mixing a carbonic substance with an adhesive for pelletizing for the first time to obtain a carbonic pellet; (2) mixing the carbonic pellet with a mixture containing metallurgical slag, a reducing agent, the adhesive and an additive for pelletizing for the second time to obtain the metallurgical slag pellet with the carbonic pellet serving as a core; (3) wrapping the metallurgical slag pellet to form a high-temperature-resistant layer on the surface of the metallurgical slag pellet; and (4) roasting the metallurgical slag pellet with the high-temperature-resistant layer to obtain a metalized pellet. According to the method, the metallization rate of the metallurgical slag pellet can be remarkably improved, so that a product with higher iron level and higher recovery rate is obtained favorably in the subsequent treatment process.

The invention provides a method for producing molten iron with high-phosphorus and low-iron refractory iron ore, comprising the following steps: taking high-phosphorus and low-iron refractory iron oreas raw material; taking wood coal as reducing agent; oxidizing roasting; directly reducing; magnetically separating and separating; melting and separating; dephosphorizing molten iron; and obtainingthe low-phosphorus molten iron. The method can process the extremely refractory iron ore with high P content, high S content, high SiO2 content and low iron level, has high ore iron recovery rate, completely solves the difficulties of the high-phosphorus and low-iron refractory iron ore such as ore selecting and smelting, removing coke, and eliminating high-energy consumption and high-pollution technical process such as ore selecting, sintering, palletizing, coking, etc. Phosphorus-containing slag can realize resource comprehensive utilization. A great number of experiments and semi-industrialproduction demonstrate that the technical economic effect of the method is remarkable and effectively solves the current problem of ore resources supply-demand contradiction in China.

The invention discloses a method and a system for recycling iron from red mud. The method for recycling iron from red mud comprises the steps of carrying out fine grinding treatment on red mud powder and carbon-based material powder; then, carrying out wet grinding treatment, so as to obtain uniform mixed material fine powder, wherein the mass fraction of the mixed material fine powder, of which the particle size is not larger than 0.02 mm, is not lower than 90%; carrying out reduction treatment on the mixed material fine powder under the reduction atmosphere, so as to obtain alkali-containing furnace gas and a dealkalized material; carrying out cooling treatment on the dealkalized material, so as to obtain a cooled material; and carrying out ore grinding and magnetic separation treatment on the cooled material, so as to obtain iron powder and tailings. According to the method for recycling iron from red mud, the technological process is simple, the cost is low, the iron recovery rate is high, the iron level of the recycled iron powder is high, the content of sulfur is low, the alkali content of the tailings is low, and the recycled iron powder can be used for producing cement.

The invention provides a poor hematite grading level and narrow level sorting process, which is characterized in that three levels of products can be obtained by using a double-section cyclone to grade and reselect a primary ore grinding product and are respectively fed into subsequent selection work to realize grading level and narrow level sorting. The poor hematite grading level and narrow level sorting process comprises the specific steps of: (1) grinding raw ores by a primary ball grinder and grinding the raw ores until the content of a -0.074-micron grain level in primary grading overflowing is 55%; feeding to a cyclone to carry out primary rough-fine grading work to obtain deposited sand of the cyclone of the primary rough-fine grading work; and feeding into primary reselection; (b) feeding the overflowing of the primary rough-fine grading work to secondary rough-fine grading work; and feeding deposited sand of the secondary rough-fine grading work to secondary reselection; and (c) feeding an overflowing product of the secondary rough-fine grading work to magnetic selection work, and feeding concentrate ores of the magnetic selection work to floating selection work, wherein tailings of the magnetic selection work are magnetic selection tailings. The invention provides strengthened rough-fine grading work of a poor hematite ore treatment plant so that the concentrate ore cost is effectively reduced and the iron level of the comprehensive tailings is controlled.

Methods and compositions for treating disease caused by increased iron levels are disclosed Fluoregenic compounds and methods of using the same are also described.

The invention discloses a method for predicting passenger demand on airline routes, which includes the following steps: Step 1: Obtain data on factors affecting demand in the civil aviation market, including: the total amount of air passenger flow in two places, the capacity of airports in two places, the distance between two places, and the fare level , Whether there is a high-speed rail connection; Step 2, establish a forecasting model of passenger demand in the two places: passenger demand in the two places = f (total air passenger flow in the two places, airport capacity in the two places, distance between the two places, fare level, whether there is a high-speed rail connection ), among which, the passenger demand of the two places is positively correlated with the total air passenger flow of the two places and the distance between the two places, and the passenger demand of the two places is negatively correlated with the distance between the two places, the fare level and whether there is a high-speed rail connection; step 3, step 1 The obtained factor data affecting the demand of the civil aviation market is brought into the passenger demand forecast model of the two places established in step 2, and the passenger demand result of the route is calculated. The invention can comprehensively consider the market and economic development status, and effectively predict the demand of airline passengers.

The invention relates to an application of Lf (lactoferrin) in preparation of PD (Parkinson's disease) treating drugs. The drugs are used for treating or preventing a toxicological action of MPTP (1-methyl-4-phenyl-1,2 ,3 ,6-tetrahydropyridine), the Lf is APO-Lf or HOLO-Lf, the two drugs both can reduce the level of iron in substantia nigra in the brain and play a neuroprotective effect on a patient with PD, APO-Lf and HOLO-Lf have no influence on peripheral iron level, neither are chelated with iron to result in anemia, nor increase iron to cause iron loading. In one embodiment, the Lf is APO-Lf or HOLO-Lf.

The invention discloses a method for making a pocket, a mouth of which is in a random shape. The method comprises the following steps: (1) placing first pocket cloth (1) on a pocket-demanding part of a garment piece (2) and ensuring that the front face of the first pocket cloth (1) is upward; (2) drawing a shape of the pocket mouth on the front face of the first pocket cloth (1); (3) stitching along a contour line (3) of the drawn shape of the pocket mouth and connecting the first pocket cloth (1) with the garment piece (2); (4) cutting and hollowing along the contour line (3) of the drawn shape of the pocket mouth by means of retraction of 0.2-0.6 cm, and cutting a hole when coming across a corner of the contour line (3); (5) turning the first pocket cloth (1) inside through a hollowed part (4); (6) ironing level the hollowed part (4) and the edge thereof; and (7) stitching second pocket cloth (2) with the first pocket cloth (1) already positioned behind the garment piece (2) to compete making the pocket.

Methods of normalizing iron levels, treating iron deficiency and disorders related thereto, such as anemia, as described. Pharmaceutical compositions effective for such treatments are also described.

The invention discloses a thiazolidone compound, wherein a chemical structure of the thiazolidone compound is shown in a general form (I). The invention also discloses application of the thiazolidone compound in preparation of a medicine used for treating thalassemia. Experiments prove that the thiazolidone compound can be used for effectively stimulating expression of hepcidin in cells under the condition that concentration is 10mu M, can be still used for effectively inducing expression of hepcidin in liver when being exposed for 6 hours, 24 hours and 48 hours respectively at a dosage of 30mg/kg in animal level and can be also used for effectively reducing level of serum iron, so that the thiazolidone compound can take hepcidin as a target, can be used for reducing iron level in serum, is hopeful to be a potential medicine used for treating and alleviating iron disorder-related diseases and has a broad clinical application prospect and a great economic development value.

A test kit and a biomedical process is provided to estimate metals particularly non-transferrin bound iron levels (NTBI) in circulating body fluids particularly, serum. NTBI appears in serum when there is excess iron in the body. The method comprises of employing a signal generating moiety capable of complexing with iron that is a peptide like molecule having an iron binding site and also an optical signal generating functional group. The molecule is of microbial origin. The measurement is based on the alteration of optical characteristics of the probe molecule upon attachment of iron to its binding site on the molecule. Hence it generates a signal proportionate to the amount of iron available for binding and provides a direct estimate of free or unbound iron in the sample. According to this instant invention a rapid estimation method of NTBI in body fluids can be undertaken in an inexpensive way without the need of specialized expertise.

Examples herein generally relate to sinter blend compositions for use in a sintering process that do not contain coke breeze (0.0% coke breeze), or contain only very small amounts of coke breeze. In particular, these sinter blend compositions are capable of repurposing mixture of iron-making reverts, having high total and metallic iron levels that re-oxidize so as to become a replacement fuel source for the coke breeze typically used in sinter blend compositions for use. in a sintering process, while still managing to produce a sinter with sufficient ISO tumble strengths.

Iron contaminants are removed from hydrocarbon oils, and from produced water or flowback water by-products of oil and gas production, by treatment of such liquids with a composition comprising a two-tail lipid compound. The lipid binds iron to form a lipid/iron phase in the liquid, which is then removed to provide a liquid with a reduced iron level.

The invention discloses a float valve type spraying pack for preparing amorphous strip. The float valve type spraying pack for preparing the amorphous strip comprises a spraying pack body, a molten iron taking port, a molten iron taking port base board, a spraying nozzle, a nozzle seat, a valve rod seat, a float valve unit, a baffle, a left counter weight and a right counter weight. The float valve unit is arranged inside the cavity of the spraying pack body and is composed of a valve rod, a float block, a left guide rod and a right guide rod, and the lower end of the valve rod is connected with a central hole of the valve rod seat in a centering joint mode; the top end of each guide rod is provided with the corresponding counter weight; the baffle is movably arranged inside a groove at the upper end of the spraying pack body and provided with a molten iron separation cone. According to the technical scheme, the float valve type spraying pack for preparing the amorphous strip can control the molten iron level freely, achieve strip spraying at intervals actively and stop automatic molten iron discharge when abnormal strip spraying occurs and meanwhile is simple in structure, low in cost, safe, reliable and capable of prolonging the service life of equipment.