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Use of a basic oxygen furnace to produce granulated metallic units, and associated systems, devices, and methods
Systems and methods for using a liquid hot metal processing unit to produce granulated metallic units (GMUs) are disclosed herein. In some embodiments of the present technology, a liquid hot metal processing system for producing GMUs comprises a liquid hot metal processing unit including a granulator unit. The granulator unit can include a tilter positioned to receive and tilt a ladle, a controller operably coupled to the tilter to control tilting of the ladle, a tundish positioned to receive the molten metallics from the ladle, and a reactor positioned to receive the molten metallics from the tundish. The reactor can be configured to cool the molten metallics to form granulated metallic units (GMUs).
Owner:SUNCOKE TECH & DEV LLC
Loading granulated metallic units into railcars, and associated systems, devices, and methods
PendingUS20250085156A1Waste water treatment from quariesLarge containersStructural engineeringMechanical engineering
Owner:SUNCOKE TECH & DEV LLC
Low-sulfur granulated metallic units, and associated systems, devices, and methods
A low-sulfur granulated metallic unit having a mass fraction of sulfur between 0.0001 wt. % and 0.08 wt. % is disclosed herein. Additionally or alternatively, the granulated metallic unit can comprise a mass fraction of phosphorous of at least 0.025 wt. %, a mass fraction of silicon between 0.25 wt. % and 1.5 wt. %, a mass fraction of manganese of at least 0.2 wt. %, a mass fraction of carbon of at least 0.8 wt. %, and / or a mass fraction of iron of at least 94.0 wt. %.
Owner:SUNCOKE TECH & DEV LLC
Treating cooling water in iron production facilities, and associated systems, devices, and methods
Treating cooling water in industrial production facilities and associated systems, devices, and methods are disclosed herein. The system can comprise a cooling tower with a first and second cell, each having a housing to receive return water and a sump below to maintain supply water configured to directly contact molten metal. The system includes an inlet and an inlet line to provide return water to the cooling tower and an outlet and an outlet line to direct supply water back to the industrial production facility. The inlet, outlet, and cooling tower form a closed-loop network. Additionally, a blowdown line is fluidically coupled to the outlet to divert a portion of the supply water away from the closed-loop network.
Owner:SUNCOKE TECH & DEV LLC
Processing granulated metallic units within electric arc furnaces, and associated systems and methods
Processing granulated metallic units within electric arc furnaces (EAFs) and associated systems, devices, and methods are disclosed herein. A representative method can include receiving granulated metallic units in an EAF, wherein the granulated metallic units comprise no more than 0.05 wt. % of sulfur and at least 50% of particles in the granulated iron material have a particle size of at least 6 millimeters. The method can include applying electrical energy to the granulated iron via electrodes and melting the granulated iron material to form a molten steel product. The method can also include tapping the EAF to remove the molten steel product from the EAF.
Owner:SUNCOKE TECH & DEV LLC
Torpedo cars for use with granulated metallic unit production, and associated systems, devices, and methods
Torpedo cars for use with granulated iron production, and associated systems, devices, and methods are disclosed herein. In some embodiments of the present technology, a torpedo car includes a tilting mechanism, a body rotatably coupled to the tilting mechanism, and a controller operably coupled to the tilting mechanism to control tilting of the body. The body can include (i) an inner surface defining a cavity and a channel, and (ii) an outer surface defining an opening to the cavity and a channel outlet of the channel spaced apart from the opening. The channel can extend between the channel outlet and a channel inlet interfacing the cavity. The inner surface can include a slag dam configured to prevent slag from exiting the opening while the torpedo car tilts. The controller can control the tilting mechanism to control molten metal flow out of the cavity through the channel.
Owner:SUNCOKE TECH & DEV LLC
Railcars for transporting granulated metallic units, and associated systems, devices, and methods
PendingUS20250083713A1Waste water treatment from quariesLarge containersClassical mechanicsStructural engineering
Railcars for transporting granulated metallic units, and associated systems, devices, and methods are disclosed herein. For example, a reinforced railcar apparatus includes a container envelope and a reinforcement liner. The container envelope includes side walls and end walls extending from a floor of the railcar. The side walls are a first length and the end walls are a second length less than the first length. Top portions of the rigid side walls and end walls define an opening of the container envelope through which granulated metallic units are discharged into the railcar assembly. The railcar assembly includes angled interior walls coupled to the bottom surface and extending from a top portion of the end walls to the bottom surface. The reinforcement liner is disposed over a portion of the bottom surface and the angled interior walls. In some embodiments, the railcar assembly includes an open-topped box layered with impact-absorbing material.
Owner:SUNCOKE TECH & DEV LLC
Low-carbon granulated metallic units, and associated systems, devices, and methods
A low-carbon granulated metallic unit having a mass fraction of carbon between 0.1 wt. % and 4.0 wt. % is disclosed herein. Additionally or alternatively, the granulated metallic unit can comprise a mass fraction of phosphorous of at least 0.025 wt. %, a mass fraction of silicon between 0.25 wt. % and 1.5 wt. %, a mass fraction of manganese of at least 0.2 wt. %, a mass fraction of sulfur of at least 0.0001 wt. %, and / or a mass fraction of iron of at least 94.0 wt. %.
Owner:SUNCOKE TECH & DEV LLC
Use of residual iron within granulated metallic unit production facilities, and associated systems, devices, and methods
Owner:SUNCOKE TECH & DEV LLC
Novel tap hole structure for blast furnace
ActiveCN222499206UImproved thermal shock stabilityImprove structural stabilityBlast furnace detailsDischarge devicesFire brickRefractory
The novel tap hole structure comprises a furnace shell, an iron notch frame is installed on the side face of the furnace shell and located at the position of a blast furnace iron notch, and a plurality of prefabricated parts extending towards the interior of the furnace shell are arranged in the center of the interior of the iron notch frame. The multiple prefabricated parts are connected end to end, stemming channels penetrating through the iron notch frame are formed in the prefabricated parts, and first protruding parts which protrude outwards and are evenly arranged are arranged outside the prefabricated parts; the mud sleeve structure is reasonable in design structure and convenient to use, the mud sleeve structure formed by the prefabricated part is adopted to replace an existing mud sleeve structure formed by laying refractory bricks and pouring refractory materials in an iron notch area, the service life of the iron notch area can be prolonged on the premise that the thermal shock stability and the structural stability of the iron notch area are improved, and the service life of the iron notch area is prolonged. And the maintenance cost rise caused by frequent damage is avoided, and the normal working requirement of the blast furnace is met.
Owner:洛阳志品新材料有限公司
Method for quickly reproducing after long-term damping-down reproducing of blast furnace
The invention belongs to the technical field of metallurgy, and discloses a method for quickly reproducing after long-term damping-down reproducing of a blast furnace, which comprises the following reproducing steps: step 1, a hearth core active preheating step: before blast reproducing of a main tuyere of the blast furnace or at the initial stage of reproducing, introducing oxygen-containing gas into a hearth central area through at least one iron notch, the central area of the hearth is actively heated; and 2, a drainage channel pre-construction step: opening the other iron notch after the blast of the main tuyere of the blast furnace is recovered and before a large amount of liquid iron slag is formed, and enabling high-temperature coal gas to be sprayed outwards from the iron notch by utilizing the pressure of gas formed in the furnace so as to dredge the hearth, heat the iron notch area and pre-construct the iron slag drainage channel. The cold state problem of the center of the hearth is solved through active preheating, a smooth drainage channel is constructed in advance through high-pressure coal gas flow, an iron notch area is heated, and the fatal risk that a high-temperature liquid phase newly produced in the initial stage of re-production gathers in the front edge area of the tuyere is fundamentally avoided.
Owner:WUKUN STEEL
Blast furnace tank matching method, device and equipment and storage medium
PendingCN119530474AMeet dynamic changesSteel manufacturing process aspectsBlast furnace detailsProcess engineeringIndustrial engineering
The invention provides a blast furnace tank matching method, device and equipment and a storage medium, and the method comprises the steps that the working state of each iron notch in a target blast furnace and the position information of each empty tank are monitored, and the empty tanks are tank cars not loaded with molten iron; if the working state of the iron notch is in the open state, tank matching duration is calculated according to the real-time molten iron flow speed of the iron notch, and the tank matching number of each iron receiving line under the iron notch is determined according to the working state of the iron notch; according to the position information, the required predicted duration from each empty can to each iron receiving line of the iron notch is determined; and screening the empty tanks according to the tank matching quantity and the tank matching duration of each iron receiving line and the predicted duration of each empty tank, and determining a target empty tank corresponding to each iron receiving line so as to complete the tank matching of the target blast furnace. Therefore, the molten iron tanks are dynamically allocated and scheduled in combination with the real-time molten iron flow speed of the blast furnace, so that the tank allocation plan is more reasonable and efficient, and the dynamic change of the actual production requirement of the blast furnace can be met in time.
Owner:CHONGQING SAIDIQIZHI ARTIFICIAL INTELLIGENCE TECH CO LTD
Main iron runner cover of blast furnace
The utility model relates to a blast furnace main iron runner cover which comprises a cover body composed of a shell and a refractory lining, the cover body is arched, a plurality of air holes are formed in the cover body, flaring sections are arranged at the two ends of the cover body, an outer retaining wall and an inner retaining wall are arranged at the two ends in the cover body along the inner wall respectively, the outer retaining wall and the inner retaining wall are arranged at intervals, and the outer retaining wall and the inner retaining wall are the same in structure. Comprising a metal wall plate, the metal wall plate is fixedly connected with a shell, a refractory material layer covers the metal wall plate, the refractory material layer and a refractory material lining form an integrated structure, and an arch-shaped channel is formed in the middle of an outer retaining wall and the middle of an inner retaining wall. The trumpet-shaped flaring can enlarge the coverage area and the shielding area, prevent air convection interference and dust escape, prevent particles entering the main iron runner cover from scattering, and improve the slag iron splashing and sucking effect. The outer retaining wall and the inner retaining wall can forcibly control the spraying speed of molten slag and iron, and kinetic energy and impact force are reduced.
Owner:BENGANG STEEL PLATES CO LTD
Device for preventing residual molten iron from splashing out and metallurgical equipment
ActiveCN222613373Uprevent splasheasy dischargeDischarge devicesProcess efficiency improvementMetallurgyEngineering
The utility model relates to the technical field of metallurgical equipment, and provides a device for preventing residual molten iron from splashing out and metallurgical equipment, the device for preventing residual molten iron from splashing out comprises a hanging connection structure and a flow guide pipe, the caliber of the upper end opening of the flow guide pipe is larger than the caliber of the tank opening of a molten iron tank; the caliber of a lower end opening of the flow guide pipe is smaller than that of a tank opening of a molten iron tank, and the hanging connection structure is connected with an upper end opening of the flow guide pipe and used for hanging and connecting the flow guide pipe to the position below a discharging opening of a residual iron runner. According to the technical scheme, after entering the flow guide pipe through the upper end opening of the flow guide pipe and then flowing out through the lower end opening of the flow guide pipe, the residual molten iron flows into the tank opening of the molten iron tank more easily and more completely, that is, the residual molten iron is smoothly and reliably discharged into the molten iron tank, so that the condition that the residual molten iron is splashed or overflowed out of the molten iron tank is prevented; the safety of operation equipment and personnel is effectively protected, meanwhile, the flow of the residual molten iron does not need to be excessively controlled and cared, and the operation efficiency is improved.
Owner:NINGBO IRON & STEEL
Continuous granulated metallic units production, and associated systems, devices, and methods
Systems for continuous granulated metallic unit (GMU) production, and associated devices and methods are disclosed herein. In some embodiments, a continuous GMU production system includes a furnace unit, a desulfurization unit, a plurality of granulator units, and a cooling system. The furnace unit can receive input materials such as iron ore and output molten metal. The desulfurization unit can reduce a sulfur content of the molten metallics received from the furnace unit. Each of the plurality of granulator units can include a tundish that can control the flow of molten metallics and a reactor that can granulate the molten metallics to form GMUs. The cooling system can provide cooled water to the reactor. Continuous GMU production systems configured in accordance with embodiments of the present technology can produce GMUs under continuous operations cycles for, e.g., at least 6 hours.
Owner:SUNCOKE TECH & DEV LLC
Blow-off valve and blow-off valve air leakage processing method
The relief valve comprises a valve seat and a valve cover, the valve seat is provided with a valve port, and a sealing ring in a compressed state is arranged between the port edge of the valve seat and the cover edge of the valve cover; the driving mechanism is used for driving the valve cover to be opened or closed, and under the condition that the valve cover is closed, the valve cover is arranged at the valve port in a sealed mode; under the condition that the valve cover is closed, a gap used for containing packing materials is formed between the opening edge of the valve seat and the cover edge of the valve cover, and the gap is located on the outer side of the sealing ring.
Owner:BEIJING SHOUGANG CO LTD
Composite tapping channel
Owner:GONGYI NEW TYPE METALLURGY MATERIAL CO LTD
Protection device suitable for molten iron trough of blast furnace casting house
The utility model belongs to the technical field of ironmaking, and particularly discloses a protective device suitable for a molten iron trough of a blast furnace casting house, which comprises a cover head, a cover body and a cover tail, the cover body is formed by connecting a plurality of main frames end to end, each main frame comprises a frame top, frame waists and frame legs, the frame waists are welded on two sides of the frame top, and the frame waists are welded on two sides of the frame top. Frame legs are welded to the frame waists, a clamping groove is fixedly connected to the head end of the main frame, the head ends of the frame top, the frame waists and the frame legs are welded to the clamping groove, a clamping plate is fixedly connected to the tail end of the main frame, and the tail ends of the frame top, the frame waists and the frame legs are welded to the clamping plate. Modularized installation of the molten iron trough protective cover is achieved through the clamping groove and the clamping plate, the molten iron trough protective cover is higher than the ground, the observation window is formed, workers can conveniently observe the flowing condition of the main trough, the dust removal cover is connected to the tail end of the protective cover, and dust removal is more thorough.
Owner:XINXING DUCTILE IRON PIPES XINJIANG
A control system and method for preventing molten iron from spilling out of a molten iron ladle
This invention relates to a control system for preventing molten iron overflow during ladle discharge. The system includes a furnace platform with a molten iron trough and two sets of rails passing beneath the furnace platform. A swing chute is located below the outlet of the molten iron trough. Ladle cars are mounted on the two sets of rails, each carrying a molten iron ladle. Each set of rails has a molten iron discharge station located below the swing chute. A ladle car position sensor is installed beside each discharge station on the rails to detect whether the ladle car is in position. A rail weighing scale is installed at each discharge station, and a radar level gauge is installed above the discharge station to detect the liquid level in the molten iron ladle. This invention provides a control system for preventing molten iron overflow during ladle discharge, achieving accurate control of the discharge amount. It can remind workers to switch discharge lines in a timely manner and can automatically switch lines if workers do not make adjustments, reducing the risk of excessive molten iron overflow damaging the ladle and ladle car, and ensuring safe production.
Owner:WUHAN IRON & STEEL GRP ECHENG IRON & STEEL CO LTD
Geothermally powered iron production systems and methods
A geothermally powered iron production subsystem includes using heat transfer fluid heated by a geothermal system with a wellbore extending from a surface into an underground magma reservoir. A hopper receives iron ore that is crushed and provided to a blast furnace, along with limestone and coke. The blast furnace is heated by a heat exchanger configured to receive the heat transfer fluid heated by the geothermal system to generate the heat provided to the blast furnace. One or more components of the iron production subsystem may also be powered by the heated heat transfer fluid.
Owner:ENHANCEDGEO HOLDINGS LLC
A repair material for a self-flowing blast furnace tapping trough, its preparation method and use
The present invention discloses a self-flowing repair material for blast furnace tapping troughs, its preparation method and uses. The repair material comprises the following raw materials in parts by weight: 40-60 parts of a base material, 5-8 parts of a firing promoter, 10-20 parts of graphite powder, 15-30 parts of a binder, 4-8 parts of organic fiber, 0.05-1 part of an expansion agent, and 0.01-1 part of a hardening promoter. The repair material of the present invention has good fluidity, can enter deep into cracks, and it is difficult to ensure that all small gaps are filled with gunning material. In addition, the repair body formed by the repair material has good bonding with the original matrix and can be used for a long time.
Owner:BAOJIUHE REFRACTORY +1
Residual iron discharging system for overhaul of blast furnace
The utility model provides a blast furnace overhaul residual iron discharging system which comprises a blast furnace body, a bearing frame, an iron receiving ladle, a bearing chute and a translation driving piece, and the translation driving piece is connected with the bearing frame; and the bearing chutes are connected between the two adjacent iron receiving ladles, and when the translation driving piece drives the bearing frame to move, the bearing chutes are used for bearing the residual iron discharged from the discharging opening of the blast furnace body and guiding the residual iron to the two ends till the residual iron flows into the two iron receiving ladles correspondingly. According to the blast furnace overhaul residual iron discharging system provided by the utility model, the iron receiving ladles on the supporting frame are driven by the translation driving piece to horizontally move, so that different iron receiving ladles correspond to the residual iron chutes up and down, and the residual iron in the blast furnace body is effectively discharged; the iron receiving ladle can still receive residual iron discharged by the blast furnace body in the moving process, the residual iron is conveyed into the two adjacent iron receiving ladles through the receiving chute, and the discharging efficiency and safety of the residual iron are effectively improved.
Owner:HEBEI JINXI IRON & STEEL GRP CO LTD
Slag trough cover plate
The utility model discloses a slag trough cover plate which comprises a telescopic rod and an arch-shaped cover plate, the telescopic rod is installed on a support in a hinged mode, the hinged position of the telescopic rod and the support is located on one side of a slag trough channel, and the arch-shaped cover plate is arranged on the upper surface of a trough body in a covering mode. The slag channel is located under the arch-shaped cover plate, a hanging lug is arranged on the top of the arch-shaped cover plate, and the hanging lug of the arch-shaped cover plate is movably hung at the free end of the telescopic rod. The slag trough cover plate disclosed by the utility model can be directly arranged on the trough body to cover the slag trough channel, so that the slag trough channel can be sealed and covered, smoke dust in the slag trough channel is prevented from leaking, and the working environment is improved.
Owner:福建罗源闽光钢铁有限责任公司
A method for determining the position of a residual iron port of a blast furnace residual iron discharge hearth
The present application relates to a kind of blast furnace residual iron furnace residual iron mouth position determination method, comprising: the determination of furnace residual iron mouth elevation position and the determination of furnace residual iron mouth circumferential position and the like steps.The blast furnace residual iron furnace residual iron mouth position determination method provided by the present application, by the erosion rate of furnace refractory, blast furnace refractory thermal conductivity coefficient and blast furnace running time model, determine the thinnest part of refractory, i.e.elevation (i.e.latitude), by circumferential position model, again in combination with the convenience of residual iron and furnace cooling wall temperature detection, determine specific cooling wall (i.e.latitude), compared with prior art, it is a more scientific method.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD
Water cooling device for slag runner of blast furnace casting house
The utility model relates to the technical field of slag runner water cooling, in particular to a blast furnace casting house slag runner water cooling device which comprises a plurality of water cooling plates used for cooling the two side portions and the bottom of a slag runner in a water cooling mode. The water cooling plate comprises a shell, a cooling channel which is arranged in the shell and enables cooling water to flow back and forth in the shell, a water inlet communicated with one end of the cooling channel, and a water outlet communicated with the other end of the cooling channel. The plurality of water cooling plates are spliced and fixed together through connecting structures; the water-cooling plate has the beneficial effects that in actual use, the shell is attached to the side part and the bottom of the slag runner, namely, the two side parts and the bottom of the slag runner are cooled, so that the cooling effect of the water-cooling plate on the slag runner is ensured; meanwhile, the multiple water cooling plates are spliced together to form a pouring frame, pouring can be directly carried out on the water cooling plates to form the slag runner, the slag runner and the water cooling plates are tightly combined, heat conduction between the slag runner and the water cooling plates is facilitated, and the cooling effect is improved.
Owner:REWELL REFRACTORY ZHENGZHOU CO LTD
Anti-splashing residual iron discharging device for blast furnace
The utility model relates to the technical field of blast furnace residual iron discharge, in particular to an anti-splashing residual iron discharge device of a blast furnace. The furnace comprises a furnace body, one side of the furnace body is communicated and fixedly connected with a frame main beam, the top of the frame main beam is fixedly connected with a cover plate, a residual iron runner is formed between the cover plate and the frame main beam, and the residual iron runner is in a big-end-up trapezoid shape; through cooperation of a residual iron runner, a first support and a second support, the gradient of a main beam of a frame is 3.6 degrees by arranging the first support and the second support, the residual iron runner extends to the positions of a first rail and a second rail, molten iron tanks on the two rails receive molten iron at the same time and are alternately replaced, and it is ensured that after one molten iron tank receives iron all the time and residual iron is completely discharged, the residual iron tank can be replaced. Pulling to steel-making for smelting; the two rail lines are used for tapping at the same time, the tapping efficiency is improved, thick yellow sand is laid on the ground, refractory bricks and spraying paint are laid on a ground water pipe and an instrument box for protection, and molten iron is prevented from splashing to burn out equipment and facilities.
Owner:JIANGSU SHAGANG STEEL CO LTD +1
Fence device
Owner:NIPPON STEEL CORPORATION
Blast furnace cast house platform
ActiveCN117187462BSolve the problem of excessive expansion gapDischarge devicesMechanical equipmentPier
The present application discloses a kind of blast furnace casthouse platform, including the platform body for supporting ditch system, platform body includes platform frame column and is arranged in ditch system below beam of platform frame column, frame body and ditch system below beam are all provided with pier, pier is used to carry ditch system, platform plate is arranged on platform frame column, platform plate is used to limit lateral displacement of ditch system, pier and platform plate form three-side support to ditch system, by adopting the platform structure of embedding in casthouse after ditch system self-bearing, it solves the problem that the gap between horizontal load generated by molten iron that ditch system itself bears and the platform displacement of casthouse is too large, also solves the problem that the expansion of molten iron high temperature generated in production process that ditch system itself bears and the expansion gap of casthouse structure itself is too large, also solves the problem that the damage to ditch system itself structure caused by large mechanical equipment in the process of regularly replacing internal material of ditch system due to process requirement does not affect the overall stability and durability of platform structure itself of casthouse.
Owner:CISDI ENGINEERING CO LTD
Ironmaking system and method coupling solid oxide electrolysis with blast furnace waste heat utilization
The present invention relates to an ironmaking system and method that couples solid oxide electrolysis with blast furnace waste heat utilization. The system comprises a solid oxide electrolysis system, a hot blast system, a heat exchange network, and a blast furnace body. The solid oxide electrolysis system, driven by the coupling of an external power source and blast furnace waste heat, produces hydrogen and oxygen by electrolyzing water. The hot blast system, fueled by blast furnace gas, continuously delivers high-temperature hot blast to the blast furnace. The heat exchange system uses the waste heat generated by the blast furnace to heat the fuel at the inlet of the solid oxide electrolysis cell and the hydrogen at the inlet of the blast furnace. The blast furnace body is used to reduce ore to smelt pig iron. By recycling waste heat from the blast furnace ironmaking process through the heat exchange network, heating the water at the inlet of the solid oxide electrolysis system and the hydrogen at the inlet of the blast furnace, the system effectively reduces the power consumption of the electrolytic hydrogen production process and is of great significance for the deep energy conservation and carbon reduction of blast furnace hydrogen-rich metallurgy technology.
Owner:NORTH CHINA ELECTRIC POWER UNIV
Safety early warning device for main iron runner
The utility model discloses a main iron runner safety early warning device which comprises a working layer refractory material, a permanent layer refractory material and a ventilation prefabricated part, the working layer refractory material is formed on the inner side wall face of the permanent layer refractory material, a molten iron runner is arranged in the working layer refractory material, the first end of the ventilation prefabricated part is inserted into the working layer refractory material and extends towards the direction of the molten iron runner, and the second end of the ventilation prefabricated part is inserted into the permanent layer refractory material. The first end of the breathable prefabricated part is located at the lowest residual thickness position of the working layer refractory; a gas transmission channel is arranged in the breathable prefabricated part, one end of the gas transmission channel penetrates through the first end of the breathable prefabricated part, and the other end of the gas transmission channel penetrates through the second end of the breathable prefabricated part and is communicated with gas source fluid. By arranging the breathable prefabricated part, when the working layer refractory material is eroded to the minimum residual thickness, compressed air is continuously discharged, bubbles are generated in molten iron, the pressure monitoring meter is matched, the safety early warning effect can be rapidly achieved, and the utilization rate of the working layer refractory material is increased.
Owner:PUYANG REFRACTORIES GRP CO LTD