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80results about How to "Reduce coking cost" patented technology
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Coking furnace capable of recycling heat energy and coking method
InactiveCN102250629AExtend the industrial chainReduce pollutionCoke quenchingGas purification with selectively adsorptive solidsThermal energyCombustion
The invention discloses a coking furnace capable of recycling heat energy, and the coking furnace comprises a furnace body, an exhaust gas recycling system and a raw coal gas treatment system, wherein the furnace body sequentially comprises a coal feeding segment, a rapid coal heating segment, a raw coal gas leading-out segment, a coal carbonization coking segment, a coke quenching and tempering segment, a dry coke quenching segment and a coke discharging segment from top to bottom; the exhaust gas recycling system comprises an exhaust gas leading-out unit, an exhaust gas heat exchanger, a commutator and the like; and the raw coal gas treatment system comprises a raw coal gas leading-out unit. By using the coking furnace disclosed by the invention, continuous coal carbonization coking canbe achieved and the exhaust gas after combustion is used for dry coke quenching in the furnace; pre-dried coal can be quickly heated to 300 DEG C during entering the furnace, the coal is carbonized and coked in the furnace body, and the exhaust gas generated by self-combustion is used for dry coke quenching at the furnace bottom after the exhaust gas is cooled by heat exchange with air, thus continuously producing coke; the pollution is less in the production process; the coal industrial chain is extended, the coking cost is lowered, the coking coal types are broadened, and the product quality is improved; the profit margins are expanded in a large extent; and the maintenance cost is low.
Owner:山西华天新能源发展有限公司
Thermal cycle continuous automated coal pyrolyzing furnace
InactiveUS10047296B2Improve efficiencyReduce coking costCoke quenchingCombustible gas coke oven heatingProcess engineeringGas heating
A thermal cycle continuous automated coal pyrolyzing furnace, includes a furnace body, a coal feeding device, a preheating device, an inputting coal regulating bunker, an inputting coal cooling device, a coal pyrolyzation coking device, a coke modification device, a dry quenching device and a raw gas exporting device; wherein the coal feeding device, the pre-heating device, the inputting coal regulating bunker, the inputting coal cooling device, the coal pyrolyzation coking device, the coke modification device, the dry quenching device and the raw gas exporting device are all integrated on the furnace body; the coal pyrolyzation coking device includes a coking chamber, an external combustion gas heating device, an internal combustion gas heating device and a flame path bow. Utilizing the coal pyrolyzing furnace is capable of achieving continuously quenching, so as to improve quenching efficiency and decrease quenching cost.
Owner:SHANXI XINLI ENERGY TECH
Coal blending and coking method for metallurgical coke
The present invention relates to coal blending and coking method for metallurgical coke, and especially the coal blending and coking method with thermal coal and weakly caking coal. The present invention adopts conventional coking process and the coal consists of weakly caking coal 0-15 wt%, thermal coal 0-10 wt%, gas coal 13-45 wt%, fatty coal 9-20 wt% and coking coal 40-45 wt%. The produced coke has dropping strength M40 of 77-78.5 %, abrasion resistance strength M10 <8.6 %, reactivity of 35-37 %, thermal state strength of 45-55 %, and granularity of 25-40 mm and 40-80 mm, and meets the requirement for iron smelting in blast furnace of 1000 cubic meter or larger. The present invention has expanded coal variety range for coking, and lowered coking cost.
Owner:武钢集团有限公司
Comprehensive and recycling utilization method of coal pyrolysis gases
ActiveCN102816611AReduce coking costEnergy inputIndirect carbon-dioxide mitigationCombustionQuenching
The invention discloses a comprehensive and recycling utilization method of coal pyrolysis gases. The method is achieved by the following steps that: (1) raw gases are derived, condensed, recovered, purified and burned; (2) the burned gases are subject to dry quenching to generate flammable high-temperature waste gases; (3) the flammable high-temperature waste gases generated by the dry-quenching waste gases are used for coking; (4) the flammable high-temperature waste gases generated by the dry-quenching waste gases are used for gas-supplemented combustion; (5) the hot waste gases after the gas-supplemented combustion are transferred into a furnace for preheating and dehydration; (6) the hot waste gases after the gas-supplemented combustion are transferred into a furnace for the preheating and regeneration of active coke. The method provided by the invention combines the derivation and purification of the raw gases with processes such as combustion, dry quenching, coking, preheating, dehydration, regeneration of active coke by clean gas after the purification and recovery, thus achieving an integrated process of derivation, recover and purification, and recycling of the raw gases and reducing the coking cost.
Owner:SHANXI XINLI ENERGY TECH
Thermal cycle continuous automated coal pyrolyzing furnace
InactiveUS20150191654A1Improve efficiencyReduce coking costMechanical conveying coke ovensCoke quenchingProcess engineeringEngineering
A thermal cycle continuous automated coal pyrolyzing furnace, includes a furnace body, a coal feeding device, a preheating device, an inputting coal regulating bunker, an inputting coal cooling device, a coal pyrolyzation coking device, a coke modification device, a dry quenching device and a raw gas exporting device; wherein the coal feeding device, the pre-heating device, the inputting coal regulating bunker, the inputting coal cooling device, the coal pyrolyzation coking device, the coke modification device, the dry quenching device and the raw gas exporting device are all integrated on the furnace body; the coal pyrolyzation coking device includes a coking chamber, an external combustion gas heating device, an internal combustion gas heating device and a flame path bow. Utilizing the coal pyrolyzing furnace is capable of achieving continuously quenching, so as to improve quenching efficiency and decrease quenching cost.
Owner:SHANXI XINLI ENERGY TECH
High-sulfur fertilizer coal modification method and application thereof in coking coal blending
The invention provides a new technology of thermal solution extraction of high-sulfur fertilizer coal and application thereof in coking coal blending. In the new technology, the high-sulfur fertilizer coal is continuously treated by thermal extraction in a fixed bed reactor or thermal solution extraction in a clearance type reaction still with an organic solvent under proper conditions, after thermal state filtering and separation, a high yield high-sulfur and low-ash thermal solution product is obtained, and the product is used for coking coal blending. By such thermal solution extraction, all the ash component and inorganic sulfur of the thermal solution product are removed, in comparison with the original high-sulfur fertilizer coal, the cohesiveness of the thermal solution product is improved, the sulfur content is reduced obviously, the sulfur is completely the organic sulfur, and the organic sulfur is easy to remove in the subsequent coking process. With the thermal solution product used in the coking coal blending process, the coke quality can be improved obviously, the sulfur content of the coke is lowered, or on the premise of guaranteeing the coke quality, the non-coking coals, such as the subbituminous coal, can be properly added, so that the coal blending coking cost can be lowered, and the coking coal source is stabilized and expanded.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Composite pulverized coal modifier, modified coal prepared by using composite pulverized coal modifier, and preparation method of modified coal
ActiveCN103146408AQuality improvementImprove quality ratioCoke ovensSolid fuelsSodium BentonitePhenylacetic acid
The invention discloses a composite pulverized coal modifier, a modified coal prepared by using the composite pulverized coal modifier, and a preparation method of the modified coal. The pulverized coal modifier comprises the following components in percentage by mass: 0.1-10% of phenylacetic acid, 0.1-25% of borax, 0.1-30% of boron oxide, 30-50% of boric acid, 0.1-10% of calcium dodecyl benzene sulfonate, 0.1-15% of N-acyl glutamate, 0.1-10% of polyethylene powder, 0.1-20% of atactic polypropylene, 0.1-5% of sodium bentonite or / and calcium bentonite, and 0.1-15% of iron ore concentrates. The modified coal comprises the following components in percentage by mass: 0.01-3% of the composite pulverized coal modifier and 97-99.99% of non-coking coal. The preparation method of the modified coal comprises the following steps of: milling the composite pulverized coal modifier into a powder; crushing non-coking coal; placing the non-coking coal and the composite pulverized coal modifier in a reactor, and adequately mixing and reacting; controlling a temperature in the reactor to be 25-300 DEG C; and controlling the reaction time for more than 30 minutes. The composite pulverized coal modifier, the modified coal prepared by using the composite pulverized coal modifier, and the preparation method for the modified coal disclosed by the invention have the advantage that the mass ratio of the modified non-coking coal occupying coking blended coal is up to more than 70%, so that the resources of coking coal can be saved, and the coking cost can be greatly decreased.
Owner:CHONGQING UNIV
Method for blending coking coal by using fat coal with medium and high sulfur content
ActiveCN105713633ASulfur Content GuaranteeMeet the need for focusCoke ovensPerformance indexBlast furnace
The invention provides a method for blending coking coal by using fat coal with medium and high sulfur content. The coking coal comprises the following components in percentages by weight: 8%-18% of 1 / 3 coking coal, 10%-20% of fat coal with medium and high sulfur content, 8%-29% of fat coal, 16%-35% of coking coal with coking index G greater than or equal to 78, 19%-36% of coking coal with coking index G greater than or equal to 75 and smaller than 78, and 8%-22% of lean coal. G value of the coking index of the coking coal is 80-85, Y value is 15-19 mm, and Std is 0.65%-1.15%. The coal properties of the fat coal with medium and high sulfur content are as follows: the mean maximum reflectance of vitrinite is 0.90%-1.10%, and volatiles are 26%-32%. Technological performance indexes are as follows: the G value of the coking index is greater than or equal to 86, the Y value of the thickness of a gel layer is greater than or equal to 20 mm, and Std is 1%-3%. The content of produced coke sulfur is below 1.0%, and reaches the level higher than the level of third-level coke, demands of coke using of a large blast furnace can be met completely, the purposes of fully utilizing the coal with medium and high sulfur and protecting high-quality coking coal resources are achieved, and coking cost can be reduced greatly.
Owner:ANGANG STEEL CO LTD
Method for producing high-strength metallurgical coke by increasing blending proportion of gas-fat coal
The invention discloses a method for producing high-strength metallurgical coke by increasing the blending proportion of gas-fat coal and belongs to the technical field of coal blending for coking. According to the method, the high-strength metallurgical coke is produced through control on the volatile component index Vdaf, the caking index G, the maximum gelatin layer thickness Y and the distribution range of the vitrinite mean maximum reflectivity Rmax (0.8-1.5%). With the adoption of the method, the blending proportion of the gas-fat coal can be up to 18%, the coke thermal strength CSR is higher than 65%, and requirements of iron-making by blast furnaces larger than 2500 m<3> can be met.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Catalytic cracking coking mother granule
The invention discloses a catalyzing cracking coking mother particle (material), which is characterized by the following: the mother particle (material) is composed of adhesive coking agent, catalyzing cracking catalyst, coke and non-coke coal, wherein the adhesive coking agent is self-waste plastic with resin, latex, industrial waste catalyst with iron and iron ore, which utilizes non-coke coal to produce regular coke with coking coal.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Pulverized Anthracite modifying agent and coal blending and coking method using same
The invention relates to a pulverized anthracite modifying agent and a coal blending and coking method using the same. The pulverized anthracite modifying agent comprises the components in percentage by weight: 30-60 percent of boric acid, 0.5-25 percent of malonic acid or azelaic acid or alpha-alanine or a mixture of the malonic acid or the azelaic acid or the alpha-alanine, 0.5-25 percent of dodecyl dimethyl benzyl ammonium chloride or cationic cellulose polymer or stearic acid sodium lactate or a mixture of two or three of the dodecyl dimethyl benzyl ammonium chloride or the cationic cellulose polymer or the stearic acid sodium lactate, and 0.5-25 percent of dicyclohexyl phthalate or triphenyl phosphate or a mixture of the dicyclohexyl phthalate or the triphenyl phosphate. The coal blending and coking method comprises the steps of: step 1. modifying anthracite; and step 2. weighing the modified anthracite and coking coal according to 1-50 percent of the mass of coking mixed coal, and blending the coal for coking according to a conventional production technology. The coal blending and coking method has the advantages that the proportion of the anthracite in the coking mixed coal is obviously increased, and the coking cost is substantially reduced. The coal blending and coking method provides a new approach for coking by using the anthracite and expands the resources of the coking coal.
Owner:CHONGQING LUNIU TECH
Heat storage and exchange device for gas heater of coal pyrolyzing furnace
InactiveCN102766473AImprove combustion efficiencyReduce coking costCombustible gas coke oven heatingProcess engineeringCombustion chamber
The invention discloses a heat storage and exchange device for a gas heater of a coal pyrolyzing furnace. The heat storage and exchange device comprises two sets of heat storage chambers, two sets of heat storage members, two sets of air inlet branch pipes and two sets of combustion waste gas discharging branch pipes; a first heat storage chamber is arranged in a furnace body outer wall, a first heat storage member is arranged in the first heat storage chamber, one end of the first heat storage chamber leads to the bottom of a first combustion chamber, and the other end of the first heat storage chamber is respectively connected with a first air inlet branch pipe and a first combustion waste gas discharging branch pipe; a second heat storage chamber is arranged in the furnace body outer wall, a second heat storage member is arranged in the second heat storage chamber, one end of the second heat storage chamber leads to the bottom of a second combustion chamber, and the other end of the second heat storage chamber is respectively connected with a second air inlet branch pipe and a second combustion waste gas discharging branch pipe; and combustion chamber through holes are arranged between the first combustion chamber and the second combustion chamber. According to the heat storage and exchange device for the gas heater of the coal pyrolyzing furnace, air entering the combustion chambers of the gas heater can be heated, the combustion efficiency of gases in the combustion chambers is improved, hot waste gases obtained after gas combustion in the combustion chambers can be used for heat storage, additional heat sources are not required, and coking costs are saved.
Owner:SHANXI XINLI ENERGY TECH
Method for preparing coking raw material through biomass hydrothermal carbonization treatment and application of coking raw material prepared by method to coking production
PendingCN111978970AAddressing Distribution Inconsistency BiasDistribution inconsistency deviation is smallBiofuelsSpecial form destructive distillationPollutant emissionsCoke
The invention provides a method for preparing a coking raw material through biomass hydrothermal carbonization treatment and application of the coking raw material prepared by the method to coking production. According to the method, firstly, crushed biomass is subjected to hydrothermal carbonization treatment; by controlling the hydrothermal carbonization temperature and time, high-quality biomass hydrothermal carbon with the low ash content, the low alkali metal content, the high fixed carbon content and the proper water content is obtained, so that the performance of the biomass hydrothermal carbon meets the quality requirement of coking production; then, the biomass hydrothermal carbon and base coal are mixed, a proper amount of water is added for uniform mixing, and the coking raw material is obtained; and the water content in the coking raw material is regulated and controlled to be 6 to 12 percent, and the coking production is performed. On the premise that the mechanical strength and the reaction performance of the produced coke are enabled to meet the blast furnace ironmaking requirement, the goals of realizing resource utilization of the biomass, reducing the coking cost,saving coking coal resources and reducing CO2 and pollutant emission are also achieved; and good environmental and economic benefits are achieved.
Owner:UNIV OF SCI & TECH BEIJING
Method of coal blending for coking by steam coal pretreatment
The invention provides a method of coal blending for coking by steam coal pretreatment, which comprises the following steps: putting lignite, long flame coal, weakly caking coal, and non-caking coal in a furnace, performing dry distillation at a temperature of 450-550 DEG C to reach a Vdaf of volatile components of 13-20%, putting the coal in a ball mill to obtain particles with a particle size of less than 1 mm to keep in reserve; well mixing the dry-distilled steam coal with coking coal with a weight ratio of 0.05-0.08:1, putting into the furnace for coking. The coking coal comprises 130 coking coal, 1890 gas-fat coal, Ningxia 1 / 3 coking coal, Liuhuanggou fat coal, dry-distilled semicoke, Baicheng mixed coal, Kuqa gas coal, and low-temperature dry-distilled 42# long flame coal, and has a coke strength M40 of 77.0-78.0. According to the method, steam coal with particles being less than 1 mm is used for coal blending for coking instead of gas coal, and coke strength M40 is increased by 0.4%.
Owner:BAOSTEEL GROUP XINJIANG BAYI IRON & STEEL
Binding agent for coking and preparation method thereof
The invention relates to a binding agent for coking and preparation method thereof. The binding agent is formed by synthesizing of formaldehyde, phenol, urea, coal tar, starch and the like, and the binding agent is a water-soluble organic resin binding agent for coking. During coking, 8% to 10% of the binding agent is added, a large amount of noncoking coal or weakly caking coal is used, qualified metallurgical coke can be refined, the coking cost can be reduced obviously, and the range of coal for coking is enlarged. The binding agent is suitable for conking tamping coke and formed coke, a glue mixing device is added, existing devices can be used, and no device is required to be added.
Owner:SHIJIAZHUANG UNIVERSITY
Internal combustion heating device of coal pyrolyzing furnace
ActiveCN102786947AMake up for the lack of combustionAvoid pollutionCoke quenchingCombustible gas coke oven heatingCombustion chamberGas heater
Owner:SHANXI RUIDE NEW MATERIAL TECH CO LTD
Method for preheating coal as fired by hot exhaust gas and regenerating active coke by hot exhaust gas
InactiveCN102816580AReduce coking costCombustible gas coke oven heatingEnergy inputCombustionExhaust fumes
The invention discloses a method for preheating coal as fired by hot exhaust gas and regenerating active coke by hot exhaust gas. The method comprises the following steps that 1, hot exhaust gas obtained by combustion enters into an exhaust gas chamber from a hot exhaust gas feeding passage of a preheating device, then enters into an exhaust gas gathering annular passage by an exhaust gas preheating passage, and then is discharged from a main exhaust gas outlet of the exhaust gas gathering annular passage, wherein the hot exhaust gas obtained by combustion can transmit heat to the exhaust gas preheating passage and an inner wall in discharging, can heat air in a preheating chamber so that coal as fired falling into the preheating device is preheated, and simultaneously can be cooled after being discharged from the exhaust gas chamber; and 2, the cooled hot exhaust gas enters into an exhaust gas evaporation pipe net by a hot exhaust gas inlet pipe of an active coke regenerator; saturated active coke in a regenerator shell is heated and evaporated into unsaturated active coke by the exhaust gas evaporation pipe net; and then the cooled hot exhaust gas is discharged by a hot exhaust gas discharge pipe. The method provided by the invention realizes preheating of coal as fired and evaporation heating of active coke by hot exhaust gas obtained by combustion.
Owner:SHANXI XINLI ENERGY TECH
Process of producing formed coke by traditional coke oven
The invention is a method of producing section coke by traditional coke ovens, providing a method of producing section coke tar by existing mature traditional coke furnaces and rich high-volatility cherry-coals. First crushes char or carbonized materials of high-volatility cherry-coals, mixes in adhesive to form coke blanks, mixing the coke blanks with the high-volatility cherry-coals and puts them in a coke furnace for carbonization at high temperature, and finally leaving the furnace and extinguishing the coke and screening. It opens a new way of producing section coke by high-volatility cherry-coals in existing traditional coke furnaces, and can obtain the finished section coke and raw material for preparing coke blanks in primary carbonizing course.
Owner:陈庆福 +1
Automatic control method for thermal cycle continuous coal pyrolyzing furnace
InactiveCN102786964AImprove coking efficiencyReduce coking costCoke oven safety devicesProgramme total factory controlAutomatic controlCoal pyrolysis
The invention discloses an automatic control method for a thermal cycle continuous coal pyrolyzing furnace. The method is realized by the following steps: (1), an industrial control center controls the dehydration of coal as fired; (2), the industrial control center controls the feeding of the coal as fired; (3), the industrial control center regulates the preheating temperature of the coal as fired; (4), the industrial control center regulates the quantity of coal as fired and carries out temperature monitoring; (5), the industrial control center regulates and controls the coal pyrolysis heating; (6), the industrial control center evaluates the dry quenching process; (7), the industrial control center evaluates and regulates the coal pyrolysis process, the industrial control center controls the guiding speed and the guiding pressure of crude gas, and the coal pyrolysis carbonization process is controlled to a certain degree; (8), the industrial control center carries out comprehensive evaluation to the steps and makes the decision of discharging coke or not. The automatic control method realizes the control on the instruments and apparatuses for techniques of dehydration, coal feeding, preheating, carbonization, coke modification, dry quenching and crude gas guiding.
Owner:SHANXI XINLI ENERGY TECH
Hot-pressed iron coke for ironmaking and preparation method thereof
The invention belongs to the technical field of ironmaking, and specifically relates to a hot pressed iron coke for ironmaking and a preparation method thereof. The raw materials are composed of 10% to 30% iron ore powder, 60% to 80% bituminous coal powder, and 10% to 20% anthracite coal powder; the raw materials are fully mixed to obtain a mixture, and the mixture is heated in a heating furnace to 200-350°C, quickly hot-press and shape it to produce hot-pressed iron coke green pellets. Place the iron coke green pellets in a tunnel kiln to heat up to a certain temperature at a certain rate for high-temperature carbonization, then take out the stewed material and cool it to obtain hot-pressed iron coke green pellets. Iron coke. The prepared hot-pressed iron coke has excellent compressive strength, wear resistance, reactivity and post-reaction strength. It can replace part of the coke in blast furnace ironmaking and improve the adaptability of blast furnace ironmaking to fuel. It has a wide range of raw material sources, low production cost, simple process flow and no need to use binders, and has broad industrial application prospects.
Owner:NORTHEASTERN UNIV LIAONING
A method of using biomass extraction products as additives in coal blending and coking
ActiveCN104673346BImprove performanceImprove qualityCoke ovensOrganic solventUltimate tensile strength
The invention discloses a method for applying a biomass extract product to coal blending for coking as an additive. The method comprises the following steps: (1) extracting biomass with an organic solvent, and obtaining a high molecular weight biomass extract and a low molecular weight biomass extract; and (2) applying the biomass extract to coal blending for coking, namely mixing and coking at least one of the high molecular weight biomass extract and the low molecular weight biomass extract with mixed coal at the mass percent of 0.5%-3%. By mixing and coking at least one of the high molecular weight biomass extract and the low molecular weight biomass extract with the mixed coal, the coke reactivity PRI of coke particles can be lowered on the basis of common mixed coal, and the strength of the prepared coke is greatly improved, so that the use ratio of weakly caking coal or non-caking coal in the mixed coal is increased under the premise of ensuring good strength and low coke reactivity of the prepared coke; and the coking cost is reduced.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Coking coal modifier
The invention discloses a coking coal modifier. The coking coal modifier mainly comprises the raw materials as follows according to weight percent: 40% to 70% of boric acid, 10% to 20% of antimony oxide and 20% to 40% of moderate-temperature modified asphalt, and the coking coal modifier is prepared by mixing the raw materials. When the coking coal modifier provided by the invention is added during the coking process of coking coal, the reactivity of coke can be reduced effectively, and the strength of reacted coke can be improved; when the coking coal modifier provided by the invention is used during coal injection of coking, the use amount of coking coal, rich coal and other high-quality coking coal can be reduced greatly, the use amount of lean coal, gas coal and other coal with poor caking performance can be increased, even the use amount of non-caking coal can be increased, and high-quality and qualified coke can be obtained, so that the cost of coking can be reduced remarkably. The coking coal modifier provided by the invention can effectively change the molecular structure of coal to achieve the purposes that coke has good coking effect and high coking density and strength, the thermal response of coke can be reduced effectively and the thermal intensity of coke can be improved; and by adoption of the coking coal modifier provided by the invention, the use amount of high-quality coking coal can be reduced, and energy can be saved. Therefore, the coking coal modifier has remarkable economic benefits and social benefits.
Owner:曹金贵
Coal preparation method of coking coal material
ActiveCN110982548AExpand particle size differenceEffective combinationCoke ovensPhysical chemistryEngineering
The invention provides a coal preparation method of a coking coal material. The method comprises the following steps: crushing a strong cohesive coal material, a medium cohesive coal material and a weak cohesive coal material; crushing the particles with the particle size of more than 4mm in the strong cohesive coal material until the particles with the particle size of less than 4mm account for more than 80wt%, mixing the particles with the strong cohesive coal material with the particle size of not more than 4mm, crushing the medium cohesive coal material until the particles with the particle size of less than 1.5mm accounts for 90wt% or more, and crushing the weak cohesive coal material until the particles with the particle size of less than 0.5mm accounts for 90wt% or more; and mixingthe crushed coal materials according to a weight ratio, and feeding the mixture into a top-charging coke oven or a tamping coke oven for coking. According to the method disclosed by the invention, thegranularity and cohesiveness of the coal materials are combined, and on the basis of ensuring reasonable granularity of different cohesive coal, the grain fraction difference between the coal materials is strengthened, the granularity distribution of the coking coal materials is optimized, so that the stacking density of the coal materials can be effectively improved, and the aims of improving the coke quality and reducing the coking cost are achieved.
Owner:CCTEG CLEAN ENERGY CO LTD
Comprehensive recycling device for coal pyrolysis gas
ActiveCN103113929AReduce coking costIndirect carbon-dioxide mitigationGas purification with selectively adsorptive solidsProduct gasProcess engineering
The invention discloses a comprehensive recycling device for coal pyrolysis gas. The comprehensive recycling device comprises a waste gas dehydrator, a preheating device, a coal pyrolyzing and carbonizing device, a coke modifying device, a dry quenching device, a crude gas guiding device, a crude gas condensing device, a dry-process active coke recycler, an active coke regenerator and a tubular heat exchanger. According to the invention, the guiding, purifying and recovering of crude gas and processes of combusting, dry quenching, coke modifying, preheating, dehydrating, active coke regenerating and the like of purified and recovered clean gas are connected into a whole in series, so that a complete process of guiding, recovering, purifying and recycling of the crude gas is realized, and the coking cost is lowered.
Owner:山西睿得新材料科技有限公司
Dry quenched waste gas generating and coke modifying device
The invention discloses a dry quenched waste gas generating and coke modifying device, which comprises a dry quenching device and a coke modifying device, wherein the dry quenching device is arranged under a flame path arch and comprises a high-temperature coke quenching chamber, a low-temperature coke quenching chamber, a coke quenching bridge arch and a coke quenching waste gas fan; and the coke modifying device is positioned on the flame path arch in a furnace body, and comprises a coke modifying chamber formed at the lower part of a carbonization chamber, the lower part of a main internal flame path, and a lower-section auxiliary internal flame path, a central ring wall is surrounded to form the lower part of a high-temperature combustible waste gas inlet channel of a central channel, the lower part of the central ring wall is provided with a combustible waste gas inlet hole communicating the high-temperature combustible waste gas inlet channel with the main internal flame path and the lower-section auxiliary internal flame path, and the top of the high-temperature coke quenching chamber of the dry quenching chamber is communicated with the high-temperature combustible waste gas inlet channel of the coke modifying device. According to the device, combusted waste gas is firstly dry quenched to generate the high-temperature combustible waste gas, coke is modified by waste heat of the high-temperature combustible waste gas, additional energy-consuming devices are not needed, and the coking cost is reduced.
Owner:山西睿得新材料科技有限公司
Temperature adjusting method for treating coal cake collapse and coal charging dead corner
InactiveCN102517044AAvoid burnsQuality assuranceCombustible gas coke oven heatingProcess engineeringCoke oven
The invention provides a temperature adjusting method for treating coal cake collapse in a tamping coke oven and a coal charging dead corner in a top-charging coke oven. The method comprises the steps of adjusting coal gas amount entering an oven body in an early stage of coking time, and reducing coal gas supply amount; and recovering the coal gas supply amount in the tail stage of the coking time. The temperature adjusting method is simple and practical in operation, is little in cost investment, can effectively avoid high temperature accidents, coke firing and burning of an oven door, ensures coke quality, prolongs service life of the coke oven, reduces coking cost and improves stability of coke oven production.
Owner:PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
Internal combustion heating device of coal pyrolyzing furnace
ActiveUS9879190B2Insufficient capacityReduce coking costCoke quenchingCombustible gas coke oven heatingCombustionGas heater
An internal combustion heating device of a coal pyrolyzing furnace includes a coke quenching exhaust heater and at least one set of a third gas heater and a fourth gas heater with equal structures and associated with each other; wherein the coke quenching exhaust heater comprises an internal flame path, a first air supply tube, a second air supply tube, a central annular wall and a central path, wherein an internal flame path is divided into at least one set of an internal main flame path and an internal sub flame path, the central annular wall inside the internal loop wall of the carbonizing room and at least one the internal flame path isolating wall; the internal sub flame path is divided into an upper section, a middle section and a lower section.
Owner:SHANXI XINLI ENERGY TECH
Quenching waste gas heater of coal pyrolyzing furnace
ActiveCN102786943BAvoid pollutionReduce coking costCombustible gas coke oven heatingCombustionQuenching
Owner:山西睿得新材料科技有限公司
Combustion chamber burner structure with heating system and operation method
InactiveCN112280568ATake advantage ofOvercome low temperatureCombustible gas coke oven heatingCombustion chamberCoke burner
The invention discloses a combustion chamber burner structure with a heating system and an operation method. The heating system is arranged on the machine side and / or the coke side of a coke oven combustion chamber, the heating system comprises a metal hollow plate, the metal hollow plate is arranged between inner-layer refractory bricks and outer-layer refractory bricks of a burner brickwork, theside, which is connected with the inner-layer refractory bricks, of the metal hollow plate is the same as the inner sides of the outer-layer refractory bricks, the side, which is connected with the outer-layer refractory bricks, of the metal hollow plate is the same as the outer sides of the inner-layer refractory bricks, a smoke inlet and a smoke outlet are formed below the metal hollow plate, the smoke inlet is connected with a chute below a middle vertical flame path through a smoke pipeline, and the smoke outlet is connected with a chute below the burner vertical flame path. The problem of low temperature of the vertical flame path of the combustion chamber burner of the coke oven is solved, and the coke quality of the burner is improved. The process is simple and convenient to operate and easy to implement, and resources are saved. The temperature of the coke cake in a carbonization chamber of the burner of the coke oven can be increased to 950-1050 DEG C, and the strength of thecoke after reaction is increased to 68.1% from 66.3%.
Owner:ANGANG STEEL CO LTD
Efficient resource utilization method for fallen leaves
PendingCN114214082AAchieve recyclingReduce dosageBiofuelsSpecial form destructive distillationProcess engineeringOrganic matter
The invention belongs to the technical field of coking, and particularly relates to a method for efficient resource utilization of fallen leaves, fallen leaves are screened and crushed and then enter a coking process with a coking raw material, existing coking technical equipment is utilized, fallen leaf heat and organic matter recovery can be achieved at the same time, and compared with the prior art, the method is high in recovery efficiency and conversion rate and low in cost. The resource utilization maximization is realized, and the method is more environment-friendly. Meanwhile, the fallen leaves can replace part of coking coal after being coked, the effect of reducing the consumption of the coking coal is achieved, and the coking cost is reduced.
Owner:SHANDONG IRON & STEEL CO LTD
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