Patents
Literature
131results about "Discharge devices" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
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 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
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
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
Blast furnace slag tapping channel with slag quenching and tempering treatment function
A blast furnace slag runner with a slag quenching and tempering treatment function comprises a slag runner body of a broken-line-shaped structure; the chemical feeding pipe is arranged at the inlet end of the deslagging trough body; the electric heating pipe is buried at the bottom of the slag discharge channel body; the mixer is arranged at the outlet end of the deslagging trough body; and the storage tank is arranged at the outlet end of the lower part of the mixer. According to the utility model, the slag in a molten state is directly mixed with the conditioning agent in the slag discharge channel, so that the slag is quenched and tempered in the slag discharge channel, the subsequent processing process can be reduced, and the energy consumption is saved.
Owner:BAOSHAN IRON & STEEL CO LTD
Slag bath liquid level measuring device
The utility model relates to a slag bath liquid level measuring device which is characterized in that a suspension frame is fixedly arranged on the side wall of a slag bath, a liquid level cylinder is arranged on the suspension frame, a floating ball is arranged in the liquid level cylinder, N trigger switches are arranged on the liquid level cylinder close to the side of the suspension frame in the height direction, and N is a natural number larger than or equal to 2; each trigger switch reflects a liquid level height, a trigger rod is arranged corresponding to each trigger switch, a reset spring is sleeved on each trigger rod, and the trigger switches are electrically connected with a main controller.
Owner:TIANJIN IRON WORKS CO LTD
Slag-iron separation lintel of prefabricated skimmer
The utility model relates to the technical field of blast furnace ironmaking equipment, in particular to a slag-iron separation lintel of a prefabricated skimmer. The lintel comprises a lintel body, the lintel body is a prefabricated part, a lifting lug is arranged on the top face of the lintel body, grooves extending up and down are formed in the two opposite sides of the lintel body, and the space between the lintel body and a lintel box is filled with castable so as to fill a gap between the lintel body and the lintel box; a cavity used for containing the lintel body is formed in the lintel box, an opening is formed in the top of the lintel box so that the lintel body can be conveniently installed, the lintel box is installed in the lintel pipe, the upper surface of the lintel box is flush with the upper surface of the lintel pipe, and a slag channel channel and an iron outlet channel after slag and iron separation are formed between the two adjacent sides of the lintel box and the two side walls of the lintel pipe correspondingly. The slag groove channel is used for discharging separated slag, and the iron outlet channel is used for discharging pure molten iron. According to the utility model, the technical problems of poor stability and low yield of a blast furnace caused by tedious steps, large casting amount and long baking time of cast-in-place lintels in the prior art are effectively solved.
Owner:XINXING DUCTILE IRON PIPES CO LTD
Intelligent main channel cooling and ventilating system for blast furnace casting house
The utility model discloses an intelligent main channel cooling and ventilating system for a blast furnace casting house, which belongs to the field of steel smelting and comprises an air inlet, an air cooling layer, a ventilating slot, an air gathering device, a cooling device and an air outlet. The air cooling layer is arranged between the tapping channel steel structure and the protective layer; the air inlet is formed in the bottom of the protection layer, and the air gathering device communicates with the air cooling layer through the ventilation groove; external air enters the air cooling layer from the air inlet and then flows into the ventilation groove, and high-speed airflow is formed to achieve air cooling of the tapping channel. According to the utility model, a drainage route formed by the wind gathering device, the adsorption fans connected in parallel and the ventilation pipes is adopted, a large amount of airflow can be respectively guided into the corresponding ventilation pipes through the adsorption fans connected in parallel, the air pressure of the pipelines can be reduced, and the operation stability and safety of the whole system are improved.
Owner:YIXING REFRACTORY EQUIP & MATERIAL FACTORY
Pneumatic slag damper
The invention relates to a pneumatic slag stopper, a metallurgical vessel and a method for pneumatically closing a tapping channel of a metallurgical vessel with respect to the outflow of slag by means of a gas flow provided from at least one gas flow outlet. The gas flow outlet is arranged on a swivel arm which can be swiveled about a swivel axis by means of a swivel drive, the swivel arm having a gas delivery channel which opens into the at least one gas flow outlet, the longitudinal axis of the at least one gas flow outlet being as parallel as possible to the swivel axis. The metallurgical vessel has a tapping channel and the slag stopper which is fixed to the metallurgical vessel, the longitudinal axis of the tapping channel being as parallel as possible to the swivel axis. In the method, the gas flow outlet arranged on the swivel arm is positioned into a sealing position in front of the tapping opening of the tapping channel by swiveling the swivel arm into the sealing position in front of the tapping opening with a swivel movement which is performed in a plane which is as perpendicular as possible to the longitudinal axis of the tapping channel.
Owner:PRIMETALS TECH AUSTRIA GMBH
Method suitable for discharging residual iron during blowing out of large blast furnace
PendingCN121951157AImprove liquidityAccelerate emissionsBlast furnace detailsDischarge devicesFurnace temperatureSmelting process
The invention discloses a method suitable for discharging residual iron during blowing out of a large blast furnace, which comprises the following steps: furnace washing operation before blowing out: physical furnace washing and chemical furnace washing are adopted for improving the flowability of the residual iron and reducing the residual quantity of condensed iron in a hearth; operation and furnace temperature control in the furnace shutdown process of the drop stock line: controlling the smelting process before the furnace shutdown so as to ensure the temperature of molten iron during the furnace shutdown; and discharging the residual iron after the furnace is shut down: promoting the discharge of the residual iron by supplying air and increasing the pressure in the furnace. According to the method, through furnace washing operation before blowing out and operation and furnace temperature control in the stockline drop blowing out process, the liquidity of residual iron is improved, the residual quantity of solidified iron in a hearth is reduced, and the temperature of molten iron during blowing out is ensured; and after the furnace is shut down, discharging of the residual iron is promoted by supplying air and increasing the pressure in the furnace.
Owner:BAOSHAN IRON & STEEL CO LTD
Iron runner castable containing pre-synthesized eg-sic and method for preparing the same
The application discloses an iron runner castable containing pre-synthesized EG-SiC and a preparation method thereof, and belongs to the technical field of amorphous refractory castable. According to the mass percentage, the raw material composition of the iron runner castable comprises 10-17wt% tabular corundum, 7-13wt% composite powder, 12-25wt% silicon carbide, 1-3wt% calcium aluminate cement, 1-3wt% spherical pitch, 0.1-0.2wt% anti-explosion fiber, 2-5wt% composite additive, and the balance is brown corundum particles; additionally, 1-3wt% pre-synthesized EG-SiC is added; wherein the pre-synthesized EG-SiC is nanometer silicon carbide whisker in-situ grown between worm-like expanded graphite sheet layer structures. The iron runner castable has high early strength, significantly improves the slag resistance of the iron runner castable, and improves the high-temperature mechanical properties and the ability to resist thermal stress damage of the material, and has important application prospect.
Owner:WUHAN METALLURGY ARCHITECTURE RES YUAN CO LTD +1
Blast furnace tapping area and its iron trough top leveling platform
This utility model proposes a blast furnace tapping area and a platform for leveling the top of its iron trough. The platform comprises multiple pre-cast modules connected in sequence. Adjacent pre-cast modules are secured with tongue-and-groove fasteners, and the gaps between adjacent modules are filled with fiber blankets. Each pre-cast module includes a steel structural support frame and a refractory castable layer cast on top of the steel structural support frame. This platform replaces the traditional on-site fabrication method for leveling with offline modular customization, shortening the on-site construction period and reducing costs, while also facilitating subsequent maintenance and repair of the tapping area platform.
Owner:WISCODRI WUGANG ENG
Deslagging structure of blast furnace
The utility model discloses a blast furnace deslagging structure, which belongs to the technical field of steelmaking blast furnaces and comprises a workshop, a molten iron diversion trench, a blast furnace, a high-temperature-resistant gate, a slag outlet A, a slag outlet B and a chain plate conveying belt, the blast furnace is arranged at the top of the workshop in a matched manner, the slag outlet A is mounted on the other side of the blast furnace through the high-temperature-resistant gate, and the slag outlet B is arranged at one end of the slag outlet A; a chain plate conveying belt and a molten iron flow guide groove are installed on the two sides of the interior of the workshop correspondingly, and the slag outlet A extends into the molten iron flow guide groove. According to the utility model, the material guide mechanism is arranged, and the anti-splashing cover, the flow guide screen plate, the movable cavity, the baffle plate and the winch are matched for use, so that blockage in the iron slag discharging process can be prevented through the inclined flow guide screen plate, and each component is matched with the slag outlet A and the slag outlet B for use; molten iron and iron slag can be separated and conveyed and guided through an independent channel, and therefore the iron slag can be further prevented from blocking the slag outlet A.
Owner:HUNAN YIFANG ENVIRONMENTAL PROTECTION TECH CO LTD
Modular platform for building blast furnace in narrow space and building method
The invention discloses a modularized platform for building a blast furnace in a narrow space and a building method, an upper furnace body and a lower furnace body of the platform are composed of a plurality of furnace body modules and a plurality of furnace seat modules, the furnace body modules are connected with the furnace seat modules through connecting nails, the furnace seat modules are mounted above a base station, and the furnace seat modules are connected with the base station through connecting nails. And the furnace body module is arranged on the upper layer of the furnace seat module. The modular platform and the construction method have the beneficial effects that a worker can construct the blast furnace in a narrow space through the modular platform and the construction method, the blast furnace can be constructed only through construction of the furnace body module and the furnace base module, and the same strength and safety can be achieved after construction is completed; as the furnace body module and the furnace seat module can be industrially produced and manufactured, the construction cost and time of the blast furnace can be effectively reduced.
Owner:CHINA MCC17 GRP CO LTD
Residual iron discharging device and blast furnace residual iron discharging system
ActiveCN223509896UDischarge devicesProcess efficiency improvementHydraulic cylinderMining engineering
The utility model provides a residual iron discharging device and a blast furnace residual iron discharging system.The residual iron discharging device comprises a rock drill, a hydraulic cylinder, a hydraulic cylinder and a hydraulic cylinder, the rock drill is arranged on the transmission assembly, the transmission assembly extends in the first direction, and the transmission assembly is used for driving the rock drill to move in the first direction; the pneumatic assembly is connected to the transmission assembly, and the pneumatic assembly is used for providing driving force for the transmission assembly; the control assembly is connected to the pneumatic assembly, and the control assembly is used for controlling the pneumatic assembly to output power; wherein the control assembly is far away from the rock drill and the transmission assembly. According to the residual iron discharging device, on one hand, larger driving force can be provided through pneumatic driving, process control of the rock drill is more stable, meanwhile, the process of the rock drill can be remotely controlled, and the situation that the personal safety of workers is harmed due to molten iron splashing is avoided.
Owner:BEIJING SHOUGANG CO LTD
Fixed high-temperature slag discharging device with monitor
The utility model relates to a fixed high-temperature slag discharging device with a monitor, which comprises a slag runner with a U-shaped section and a concrete layer and a refractory material layer which are sequentially arranged from outside to inside; the slag tank is arranged at the outlet end of the slag runner and is connected with the outlet end of the slag runner through a flow guide device; a heat compensation insulating layer is arranged in the wall of the slag tank; the monitoring device is arranged on the inner side wall and / or the bottom of the slag trough and comprises a temperature sensor and / or a flow detection device; and the temperature sensor, the flow detection device and the heat compensation insulating layer are electrically connected with the controller. The utility model solves the problems in the prior art that the temperature and the quality are not measured in the deslagging process, the slag cooling is large and the like.
Owner:BAOSHAN IRON & STEEL CO LTD
Continuous granulated metallic units production, and associated systems, devices, and methods
ActiveUS12427569B2Waste water treatment from quariesLarge containersProcess engineeringIndustrial engineering
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
Heat preservation device and method for main iron runner of blast furnace
The invention discloses a heat preservation device and method for a main iron runner of a blast furnace, and belongs to the technical field of main iron runners of blast furnaces. The heat preservation device comprises a first heat preservation cover and a second heat preservation cover which are arranged above the main iron runner of the blast furnace, and a travelling crane is arranged above the first heat preservation cover and the second heat preservation cover; two lifting devices connected to the first lifting lug and the second lifting lug respectively are arranged on the travelling crane, the lifting devices are connected with a control module, and the stemming machine and the tapping machine are both connected to the control module; through cooperative cooperation of the first heat preservation cover and the second heat preservation cover, full-coverage heat preservation of the blast furnace main iron runner in the whole process is achieved, the sealing effect of the sealing plate, the first sealing strip and the second sealing strip is matched, various gaps are effectively filled, the heat preservation coverage rate is greatly increased, and the heat preservation effect is improved by combining dual protection of the refractory material layer and the efficient heat insulation layer. The slag iron radiation heat loss can be blocked to the maximum extent, the temperature drop in the molten iron conveying process is reduced, and various production problems caused by too large temperature drop are avoided.
Owner:SHANDONG IRON & STEEL CO LTD
Intelligent main channel permanent layer prefabricated member with temperature measuring assembly
The utility model discloses an intelligent main channel permanent layer prefabricated part with a temperature measuring assembly, and belongs to the technical field of blast furnace ironmaking. The device comprises a steel shell, a working castable layer, a temperature measuring assembly penetrating through the steel shell, a bottom permanent castable layer arranged in the steel shell, a first prefabricated part, a second prefabricated part and a heat insulation layer, wherein the temperature measuring assembly comprises a pressure spring type thermocouple, a copper sheet and a protective sleeve arranged on the outer side of the pressure spring type thermocouple. According to the utility model, through the pressure spring type thermocouple and the copper sheet which is integrally constructed with the first prefabricated member, the convenience in replacement of the thermocouple and the reliability in temperature detection are realized, the real-time monitoring of the temperature of the refractory material of the main channel is also realized, and the residual thickness of the castable of the working layer of the main channel can be reversely deduced through numerical simulation; therefore, the safe use of the main channel is ensured.
Owner:YIXING REFRACTORY EQUIP & MATERIAL FACTORY
Ironmaking system and tapping control method
The application discloses an iron-making system and an iron tapping control method, and belongs to the technical field of iron-making. The iron-making system comprises an iron-making furnace, iron tapping channels and a communication channel. The iron-making furnace is provided with a plurality of iron tapping openings. The number of the iron tapping channels is the same as that of the iron tapping openings. The plurality of iron tapping channels are arranged at intervals around the iron-making furnace. One end of each iron tapping channel is connected to one iron tapping opening in a one-to-one correspondence. The iron tapping channel comprises a first iron tapping section and a second iron tapping section which are connected in sequence along the direction from one end of the iron tapping opening to the other end. The communication channel is provided with at least one, and two ends of the communication channel are connected to two adjacent first iron tapping sections. The length of the communication channel is less than that of the second iron tapping section. The application utilizes the heat of the second iron tapping section corresponding to the previous iron tapping opening by the communication channel, reduces the heat loss of the multi-bag molten iron, improves the temperature stability of the multi-bag molten iron, and reduces the labor intensity and production cost of the steel-making process.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Gutter management system and gutter management method
A runner management system according to the present invention includes: a measurement device disposed above a runner toward the runner and configured to measure an inner surface shape of the runner; and a determination device configured to determine a wear state of the runner by using at least measurement data of the inner surface shape and a predetermined determination model.
Owner:JFE STEEL CORP
Blast furnace stokehole swing groove baking device
The utility model relates to a blast furnace stokehole swing groove baking device, and belongs to the technical field of ironmaking in the metallurgical industry. According to the technical scheme, the device comprises a swing groove (1), a baking main pipe (2), combustion nozzles (3), baking supports (4), a pressure gauge (6), a regulating valve (7), a check valve (8), an air source (9) and baking branch pipes (10), the baking main pipe (2) is fixed to the swing groove (1) through the two baking supports (4), the two ends of the baking main pipe (2) are connected with the baking branch pipes (10) respectively, and the pressure gauge (6), the regulating valve (7) and the check valve (8) are installed on the baking branch pipes (10). And the baking main pipe (2) and the baking branch pipes (10) at the two ends of the baking main pipe (2) are provided with a plurality of uniformly arranged combustion nozzles (3) facing the groove wall of the swinging groove (1). The oven has the beneficial effects that the baking of the swing groove can be quickly and conveniently realized, the use amount of coke oven gas is reduced, and the baking effect is improved.
Owner:HBIS LAOTING STEEL CO LTD +2
Split type swing trench
The utility model relates to a kind of split type swing ditch, the kind of split type swing ditch includes blast furnace, the one side of blast furnace is fixedly provided with hearth, hearth is provided with first installation groove and second installation groove, one end of the first installation groove is close to the blast furnace setting, the other end of the first installation groove is communicated with installation groove, molten iron ditch is provided in the first installation groove, the end of the molten iron ditch is inserted into the second installation groove, the bottom of the second installation groove is provided with turnover beam, swing ditch bracket is detachably installed on the turnover beam, swing ditch shell is detachably installed on swing ditch bracket, the side of second installation groove away from molten iron ditch is fixedly installed with swing mechanism, swing driving mechanism, further include swing pull rod, one end of swing pull rod and swing mechanism fixed connection, the other end of swing pull rod and swing ditch bracket rotation connection, with simple structure, reduce swing ditch replacement process, shorten swing ditch replacement time, prevent work injury event occurrence and so on.
Owner:ZHONGTIAN IRON & STEEL GRP (NANTONG) CO LTD +1
Treating cooling water in iron production facilities, and associated systems, devices, and methods
PendingUS20260054312A1Waste water treatment from quariesLarge containersCooling towerProcess engineering
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
Composite refractory material blast furnace skimmer and preparation method thereof
PendingCN121872760Ahigh strengthGood resistance to slag erosionBlast furnace detailsDischarge devicesAl powderFiber
The invention discloses a composite refractory material blast furnace skimmer and a preparation method thereof. The blast furnace skimmer is prepared from sintered corundum, brown corundum, white corundum, chromic oxide or activated aluminum oxide, zirconium oxide or boron carbide, metal chromium powder or metal aluminum powder, squamous graphite, silicon carbide, silicon carbide, aluminum oxide fibers, polypropylene explosion-proof fibers, high-temperature asphalt powder and a polyphosphate dispersing agent in different specifications. The preparation method comprises the following steps: respectively preparing a powdery raw material and a liquid raw material according to the raw material ratio; and mixing the powdery raw material and the liquid raw material, pouring and molding, and then air-drying, drying and sintering to obtain the product. The blast furnace skimmer provided by the invention has relatively high strength, slag corrosion resistance, scouring resistance, oxidation resistance and thermal shock resistance, and the service life of the blast furnace skimmer is greatly prolonged.
Owner:HBIS CHENGDE VANADIUM TITANIUM NEW MATERIAL CO LTD +2
Energy-saving method for casthouse dust removal fan
The present application belongs to the technical field of furnace front tapping, and particularly relates to an energy-saving method and system for a furnace front tapping dust removal fan, comprising: collecting molten iron data and smoke data in a blast furnace tapping process, wherein the molten iron data comprises blast furnace pressure, molten iron flow rate, molten iron temperature and tapping amount information, and the smoke data comprises smoke amount and smoke temperature information; processing the molten iron data and the smoke data, and establishing a furnace front tapping model and a tapping smoke correlation model; through the establishment of the furnace front tapping model and the tapping smoke correlation model, the molten iron flow rate under different molten iron output is predicted, the smoke amount is predicted again according to the predicted molten iron flow rate, the frequency conversion control parameter calculation of the dust removal fan is assisted, the frequency conversion reference set is collected and sorted in intervals, and in the actual tapping process, the frequency conversion control of the dust removal fan is realized through the frequency conversion reference set by time period, thereby solving the problem of energy waste caused by the fact that the dust removal fan always operates at rated power.
Owner:JIANGSU LANTIAN ENVIRONMENTAL PROTECTION GRP CO LTD