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Urumqi buying coke

Effective date : Effective date of registration : Address after : No. Applicant after : Baosteel Group Corporation. Address before : Fujin Road, Shanghai, No. Address before : No. The invention discloses a method for determining saturated moisture of coke, comprising crushing treatment on the coke and drying treatment on the coke. The method comprises the following steps of: crushing appropriate amount of coke sample acquired from a production field, and screening the crushed coke according to different fractions within the particle size range of mm; placing the coke at different fractions into a drying box, and carrying out full forced air drying at the temperature of DEG C; mixing the dried coke according to weight percentage of different fractions, and immersing the mixed coke into water to be fully soaked; and weighing the soaked coke on a balance, and calculating content of the saturated moisture of the coke when reading of the balance is stable. The invention provides a method for determining the saturated moisture of the coke for the coke with high moisture content in production, thus being beneficial to finding that whether excessive moisture is contained in the coke to judge whether excessive water is sprinkled into the coke, being beneficial to coke quality monitoring and improving use quality of the coke and being beneficial to reducing usage of the coke and production cost in a smelting reduction process. A kind of method measuring coke saturation moisture Technical field. The present invention relates to coke property technical field of measurement and test, be specifically related to the method for saturated determination of moisture in a kind of coke. Coke produces the main fuel of molten iron, it under mainly coal completely cuts off the condition of air at high temperature pyrolysis generate. Coke act as the effects such as exothermic mixture, carbon skeleton, reductive agent, carburizer in the blast furnace producing molten iron, and the quality of coke quality directly affects the production of molten iron. Coke moisture number be the key factor weighing coke quality quality, directly can have influence on blast fumance. These moisture of coke are all generally inherent moisture and part free moisture, are not the saturation moisture of coke. COREX ironmaking technique of fusion and reduction is different from blast furnace iron-making process as uniquely industrialized, and use in structure at fuel has had revolutionary change compared with blast furnace. But the fuel of COREX technique uses and be unable to do without coke, the quality of coke quality affects the ventilative liquid permeability of COREX melting gasification furnace half coke bed and the fuel consumption of production to a great extent, also affects the gas penetration potential of shaft furnace and then affects the degree of metalization of mineral reduction simultaneously. The number of coke moisture directly affects the production cost of COREX molten iron, and coke moisture is many, and the heat energy of consumption is just many, thus just needs more fuel, consumes more oxygen. The method of current measurement coke as analysed basis moisture is GB , and patent CN, CN all propose the method automatically measuring coke as analysed basis moisture, but the method measuring coke saturation moisture is not appeared in the newspapers. Therefore, the technical problem to be solved in the present invention is to provide a kind of method measuring coke saturation moisture. Technical scheme of the present invention is: a kind of method measuring coke saturation moisture, and comprise the break process of coke and the drying process of coke, the method comprises the following steps:. According to the method for mensuration coke saturation moisture of the present invention, preferably, grade described in step a is As, utilize the sieve of 30mm, 25mm, 20mm, 16mm, 8mm and 5mm sieve aperture to sieve after coke can being carried out fragmentation, be divided into mm, mm, mm, mm and mm five grades. Also other grade can be divided into. Object coke-screening arrangement being divided into size fractionated is, make test sample evenly, more representative, make it to be consistent with feedstock property as far as possible. Wherein preferably, the time of forced air drying described in step b is hour. Forced air drying is advisable to make the abundant drying of coke, slightly different according to the moistening degree of coke, within hour, is the general preferred time. Preferably, temperature described in step b is DEG C. Preferably, soak time described in step c is hour. The saturation moisture of coke is the absorbent maximum moisture of coke, and the object of immersion is that coke is fully absorbed water, and reaches supersaturation. The object of above comminuting coke is also make it abundant water suction. Soak the time chien shih coke abundant inspiration moisture needed for water. Further, described soak time is hour. The present invention's beneficial effect is compared with prior art:. A water intaking point Mad is 0. Take out after sample after screening is put in drying box DEG C of dry 4h, by the particle size range weight ratio batchings at different levels in table 1, dosage 1 part is 3kg, joins 2 parts and does Duplicate Samples. Namely the coke of mm presses the weight ratio of Take out after sample after screening is put in drying box DEG C of dry 5h, by the particle size range weight ratio batchings at different levels in table 3, dosage 1 part is 3kg, joins 2 parts and does Duplicate Samples. Other are with embodiment 1, and the saturation moisture recording Shanxi Jiao is Take out after sample after screening is put in drying box DEG C of dry 3. After preparing material, coke being placed on taking-up after soaking 30h in hanging basket in water and being hung on below balance. The saturation moisture recording Baosteel nut coke is 9. The present invention proposes a kind of method measuring coke saturation moisture, for in coke cargo handling process because a large amount of dust pollution adopts water spray wet dedusting, particularly provide a kind of method measuring saturation moisture in coke to the coke that moisture in production is too high, be beneficial to find whether have excess water in coke, thus judge whether coke excessively sprinkles water, be beneficial to coke quality monitoring and improve coke service property quality , reducing use and the production cost of amount of coke in smelting reduction process. CNB en. A kind of device and test method detecting construction refuse regenerated aggregate water absorption character. Combined measuring method for technical analysis of coal quality and analyzer thereof. Method for quickly testing appropriate granulation moisture content of iron ore sinter mixture. CNA en. Lu et al. Wu et al. Method for producing alkaline fertilizer by using phosphate rock tailings or low-grade phosphate rock through blast furnace process. Tian et al. Innovative one-step preparation of activated carbon from low-rank coals activated with oxidized pellets. Method for extracting high-content nickel, chromium and iron from stainless steel dust. Method and system for manufacturing cooled slag-making pellets from steel plant dedusting ash or steel plant sludge. Molding and agglomerating process of secondary iron-contained mud from iron and steel plant. Method for making cooled agglomerated pellets by use of converter gas dry-method electrostatic precipitator. A kind of direct-reduction technique using coal gas of converter production sponge iron. Method for preparing cooled agglomerated pellets by using dry method electric fly ash of converter gas. Effective date of registration : Address after : No.

CN102621028B - Method for determining saturated moisture of coke - Google Patents

Urumqi buying coke

How do American businesses fit into this picture? The companies listed below comprise those Fortune companies the highest-revenue U. Researchers Shawn Zhang and Benjamin Han, working with ChinaFile editors, identified dozens of such companies by mining publicly available information in Chinese and English, including press releases, SEC filings, company websites, and news reports. Fortune firms with attenuated connections to Xinjiang—such as expired partnerships in the region or the mere presence of products in Xinjiang, with nothing more—were eliminated. Several responded with information that is reflected here. Only Citigroup took the opportunity given to make an additional statement. It is included in the table below. While the list is unlikely to be complete, it represents the most careful and comprehensive such accounting to date. Readers with corrections or additional information are invited to submit the reporting form below the table. Skip to main content. October 2,

Urumqi buying coke