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2814 results about "Ladle" patented technology

In metallurgy, a ladle is a vessel used to transport and pour out molten metals. Ladles are often used in foundries and range in size from small hand carried vessels that resemble a kitchen ladle and hold 20 kilograms (44 lb) to large steelmill ladles that hold up to 300 tonnes (330 tons). Many non-ferrous foundries also use ceramic crucibles for transporting and pouring molten metal and will also refer to these as ladles.

Manganese-silicon alloy and production method thereof

PendingCN120384211AIngot castingSilicon alloy
The invention provides a manganese-silicon alloy and a production method thereof, and the production method comprises the following steps: respectively crushing a manganese-containing material, silica and coke in proportion, mixing with a dephosphorizing agent, adding a binder and a proper amount of water to prepare a premix, pressing the premix into smelted pellets, and drying; the dried smelting pellets are put into a closed electric furnace to be smelted, and alloy melt is obtained; transferring the alloy melt into a steel ladle, and blowing magnesium powder for desulfurization; the desulfurized alloy melt is subjected to slagging-off, and manganese-silicon alloy molten iron is obtained; and the manganese-silicon alloy molten iron is poured into a mold for ingot casting, and a manganese-silicon alloy finished product is obtained after cooling. According to the method, the raw materials such as the manganese material, the silica, the coke and the dephosphorizing agent are crushed respectively and then mixed, briquetted and smelted, so that the dephosphorizing and desulfurizing effects can be improved, and sulfur in the alloy can be further removed by spraying magnesium powder outside the furnace for desulfurization, so that the quality of the manganese-silicon alloy is improved.
Owner:察右前旗永安恒大特种合金有限责任公司

Converter body mounting and positioning system and method based on buggy ladle

The invention discloses a converter body mounting and positioning system and method based on a buggy ladle, and belongs to the technical field of converter mounting and positioning. According to the converter body mounting and positioning system, the position detection device is used for detecting whether position deviation exists on the two sides of the converter body or not in the in-place conveying process and detecting the alignment condition of the converter body and bolt mounting holes in a converter support; when the converter body has installation position deviation, the steel rail on the corresponding side is clamped through the speed reduction clamping device; when the converter body reaches the braking distance, the steel rails on the two sides are clamped at the same time, and simultaneous speed reduction of the single side or the two sides of the buggy ladle is achieved; and after the converter body is in place, the steel rail is clamped and locked through the brake locking device, so that parking brake of the buggy ladle is realized. In the conveying process of the converter, through accurate control and auxiliary braking of the buggy ladle, high-precision automatic in-position of the converter body can be achieved, and the installation efficiency and the installation precision are improved.
Owner:CHINA MCC17 GRP CO LTD

Continuous casting device and method for thin-strip cast-rolling tundish

The invention relates to the technical field of thin-strip cast rolling, and provides a thin-strip cast rolling tundish continuous casting device and method.The thin-strip cast rolling tundish continuous casting device comprises a base frame horizontally installed on the surface of a foundation, and the base frame is provided with a flow distribution ladle, a tundish and a large ladle from bottom to top; an adjusting mechanism is arranged below the position, where the casting position is arranged, of the base frame, the adjusting mechanism comprises two limiting plates which are symmetrically arranged, and one side of the middle of each limiting plate is fixedly connected with a second motor for driving a crystallizer roller; and a baking oven fixed on the placing rack is arranged above the middle parts of the two motors II. According to the method, molten steel qualified in smelting is directly poured into the molten pool defined by the two crystallization rollers rotating oppositely and the side sealing plates through the large ladle, the tundish and the flow distribution system, the molten steel is cooled through the two crystallization rollers rotating oppositely to form the steel belt with the thickness of 1-5 mm, the production cost can be saved, the casting continuity is improved, the production efficiency is improved, and the yield is increased.
Owner:JINGYE STEEL CO LTD

Bainite non-quenched and tempered steel and preparation method thereof

The invention provides bainite non-quenched and tempered steel and a preparation method thereof.The preparation method comprises the following steps that blast furnace molten iron is sequentially subjected to molten iron pretreatment, converter smelting, ladle refining, vacuum refining, vacuum degassing, continuous casting and rolling, and the bainite non-quenched and tempered steel is obtained; the content of P at the smelting end point of the converter is less than or equal to And the content of S in the molten steel subjected to vacuum refining is 0.038%-0.045%. The bainite non-quenched and tempered steel with excellent comprehensive performance is obtained through reasonable smelting, refining, continuous casting and rolling process design of blast furnace molten iron designed by adopting specific chemical components, the preparation process is simple, and the preparation cost is low.
Owner:CHENGDE JIANLONG SPECIAL STEEL

Casting machine flow control system based on multi-parameter feedback and PID dynamic adjustment

The invention discloses a pouring machine flow control system based on multi-parameter feedback and PID dynamic adjustment, and relates to the technical field of automatic control of mold pouring, the system comprises a tilting parameter module, a liquid level dynamic modeling module, a flow adaptive control module and an execution mechanism module; the tilting parameter module collects the angular velocity and angle data of a casting ladle in real time, the liquid level dynamic modeling module calculates the liquid level height according to the angular velocity, the angle data and the geometrical shape of the casting ladle, and the flow self-adaptive control module dynamically calculates the current flow value. And the preset flow target and the real-time flow difference value are input into a PID controller to generate a tilting adjustment signal to drive an execution mechanism module to adjust the flow of the casting machine. The liquid level height and the flow are calculated through mechanical motion parameters, the problem that the sensor is in direct contact with liquid in the high-temperature and high-pressure environment and fails is solved, and stable operation in the severe environment is guaranteed; and adaptive PID control and a multi-parameter fusion model are used for cooperative work, so that the steady-state error is reduced, and the response speed is increased.
Owner:HUAQIAO UNIVERSITY

Steel-making process based on Q420 slab

The invention relates to the technical field of steelmaking, in particular to a steelmaking process based on a Q420 slab, which comprises the following steps: molten iron, scrap steel and pig iron are put into a converter for melting to obtain molten steel, and the molten steel is smelted in the converter and then transferred into a ladle refining furnace for refining; acquiring a fluctuation period to determine whether the removal efficiency of the inclusions in the molten steel is qualified or not; determining the nodulation condition of the slag layer based on the judgment result that the removal efficiency of the inclusions is unqualified so as to determine that the viscosity of the whole slag layer is unqualified or the viscosity of the local slag layer is unqualified; the addition amount of fluorite is determined based on the judgment result that the viscosity of the overall slag layer is unqualified, or the pulse frequency of argon or the refining duration of molten steel is adjusted based on the judgment result that the viscosity of the local slag layer is unqualified; and the refined molten steel is subjected to vacuum degassing treatment and then subjected to continuous casting to obtain a slab, and after the slab is subjected to flaw detection, defect characterization parameters are determined so as to adjust the attenuation rate threshold value. The purification degree of the molten steel is improved.
Owner:福建三宝钢铁有限公司

Welding slag ladle for containing copper slag and design method

The invention discloses a welding slag ladle for containing copper slag and a design method. The welding slag ladle is suitable for containing, cooling and inverted placing procedures of high-temperature copper slag. The cinder ladle comprises a cylinder body, a ladle bottom, rib plates, trunnions and supporting legs, the cylinder body and the ladle bottom are formed by welding high-temperature-resistant and high-strength rolled plates, the thickness of the cylinder body is 70-100 mm, and the thickness of the ladle bottom is 80-120 mm; setting an inclination angle beta of 11.5-21 degrees relative to the center line of the bus of the cylinder body, and controlling the roughness of the inner wall to be less than or equal to 12.5 microns so as to reduce the separation resistance after the copper slag is cooled; thickness combination, stress distribution, deformation and rib plate arrangement are optimized through structural mechanical simulation, and it is ensured that the structural strength meets the requirements under high temperature and thermal cycle loads; full penetration weld joints are adopted, nondestructive testing is carried out, and the welding reliability is guaranteed; compared with a traditional casting cinder ladle, the mass of the cinder ladle is reduced by 10%-15%, the deslagging efficiency is improved, the service life is prolonged to more than two times of the original service life, and the cinder ladle has the advantages of being light in structure, high in bearing capacity, high in deformation resistance and good in maintainability.
Owner:SHANGHAI BAOSTEEL METALLURGICAL CONSTRUCTION CORP

Steel ladle tipping transport vehicle and hot repair method

The invention discloses a steel ladle tipping transport vehicle and a hot repair method, and belongs to the technical field of continuous casting of ferrous metallurgy. The steel ladle tipping transport vehicle comprises a vehicle body, a tipping saddle and a rotating arm oil cylinder, the front part of the tipping saddle is hinged to the vehicle body, so that the tipping saddle is convenient to overturn; the output end of the rotating arm oil cylinder is hinged to the middle of the tipping saddle to provide tipping force. The tipping saddle is provided with a clamping groove with an upward notch, and the notch is matched with steel ladle seats on the two sides of the steel ladle in shape, so that the tipping saddle and the steel ladle seats are clamped conveniently. In the specific use process, the clamping groove is connected with the steel ladle base in a clamped mode, the tipping saddle stably bears the steel ladle and drives the steel ladle to synchronously transport and roll over, the tumbler oil cylinder enables the steel ladle to roll over, the vehicle body bears the steel ladle to move between the hot repair station and the molten steel receiving span, transportation and hot repair operation of the steel ladle on the vehicle body are achieved, safety and reliability are achieved, use of a crown block is reduced, and working efficiency is improved. The technical problems that the molten steel receiving span temperature is high, the working environment is poor, the hoisting travel is long and the safety is low during hot repair of an existing steel ladle are solved.
Owner:MAGANG GRP DESIGN&RES INST CO LTD

Hoisting device for converter ladle

The invention relates to the technical field of hoisting, and particularly discloses a hoisting device for a converter ladle, the hoisting device comprises a lifting hook, a lifting rope for lifting the lifting hook and a lifting frame hinged to the ladle, an unhooking mechanism comprises a push rod rotationally mounted on the lifting hook, an elastic piece I, a transmission assembly and a clutch assembly, the lifting hook is connected with the lifting rope through the elastic piece I, and the lifting hook is connected with the lifting rope through the elastic piece II; after a ladle is placed on a bearing object, along with descending of the lifting rope, the transmission assembly drives the push rod to rotate forwards, after the push rod abuts against the lifting ring, the clutch assembly enables the push rod and the lifting hook to be locked, and when the lifting ring moves towards the opening of the lifting hook, the clutch assembly enables the push rod and the lifting hook to be disconnected gradually. After the push rod abuts against the lifting ring again, the clutch assembly locks the push rod and the lifting hook again, and meanwhile the push rod pushes the lifting ring out of the opening of the lifting hook; the lifting hook has the beneficial effect that the problem that the lifting hook and the lifting frame are not thoroughly separated can be avoided.
Owner:WUXI DONGXONG HEAVY ARC-FURNACE CO LTD

Processing and forming device of anti-stripping unfired magnesia-alumina-carbon brick for steel ladle wall

The invention relates to the technical field of magnesia-alumina-carbon brick processing, in particular to a processing and forming device of an anti-stripping unfired magnesia-alumina-carbon brick for a steel ladle wall, which comprises a pressing machine table, a hydraulic rod piece is fixedly mounted on the pressing machine table, and a movable bearing table is fixedly mounted on the hydraulic rod piece; the mold bearing platform is mounted on the pressing machine platform and is used for supporting the pressing mold; the oil feeding assembly is fixedly mounted on the mold bearing platform; the movable oil injection assembly is mounted on the oil feeding assembly, and is driven by a movable bearing platform to move so as to carry out oil injection treatment on the mold; when oil injection of a mold needs to be carried out, the movable bearing platform drives the stepped rack to move upwards, the oil injection pipe is driven to move under the action of the stepped rack, a spray head reaches the mold, oil injection treatment is conveniently carried out on the mold, manual operation is not needed, great convenience is achieved, the oil injection pipe moves to one side during pressing, and pressing cannot be hindered.
Owner:江苏盛耐新材料有限公司

Tundish dry material automatic feeding device

The utility model discloses a tundish dry material automatic feeding device which comprises a stock bin, a discharging channel is arranged at the bottom of one side of the stock bin, a partition plate, a screening funnel and a feeding hopper are sequentially arranged in the stock bin from top to bottom, the partition plate is fixedly connected with the inner wall of the stock bin, and the screening funnel and the feeding hopper are both movably connected with the inner wall of the stock bin. Bagged dry materials are placed in the stock bin, wall breaking treatment is conducted on the bagged dry materials through the material supplementing mechanism, the dry materials fall down from the strip-shaped holes after packaging bags are scratched, the materials are screened after being filtered through the screening funnel, residual impurities can be discharged from the cleaning opening, and the screened materials are conveyed into the discharging channel through the feeding hopper. The material guiding thin pipe and the spiral auger are used for controlling the downward sliding speed and flow of powder, the protective cover communicated with the output end of the conveying hose is matched to convey the material to the tundish, raised dust can be covered, flying dust is reduced, the material supplementing process is efficient, time and labor are saved, and safety is improved.
Owner:JIANGSU SHAGANG STEEL CO LTD +2

Method for improving manganese recovery rate of silicon-manganese alloy

The invention provides a method for improving the manganese recovery rate of a silicon-manganese alloy, which comprises the following steps: sequentially filling smelting raw materials into a closed electric furnace for smelting to obtain an alloy melt; transferring the alloy melt into a steel ladle, and blowing magnesium powder for desulfurization; the desulfurized alloy melt is subjected to slagging-off, and manganese-silicon alloy molten iron is obtained; the manganese-silicon alloy molten iron is poured into a mold for ingot casting, and a manganese-silicon alloy finished product is obtained after cooling; the smelting raw materials are sequentially filled with a backing material, a mixture and a surface material from bottom to top in the closed electric furnace; the surface material comprises aluminum powder and calcium carbide which are mixed according to a certain proportion, in the method, the surface material comprises the aluminum powder and the calcium carbide which are mixed according to a certain proportion, the effect of a reducing agent can be achieved while the ignition effect is achieved, manganese can be directly reduced in the reaction through addition of the aluminum powder, and therefore the effect of improving the manganese recovery rate is achieved.
Owner:察右前旗永安恒大特种合金有限责任公司

High-temperature-lead-bismuth-corrosion-resistant high-silicon-content ferrite / martensite steel ladle tube and preparation method thereof

The invention belongs to the technical field of research and development of fast neutron reactor jackets and structural materials, and particularly relates to a high-temperature-lead-bismuth-corrosion-resistant high-silicon-content ferrite / martensite steel ladle tube and a preparation method thereof. According to the mass percentage, the composition mainly comprises the following components: 0.16-0.24% of C; 0.4 to 0.8 percent of Mn; cr: 11.6% to 12.4%; 1.2 to 1.8 percent of W; 0.1 to 0.4 percent of Ta; 0.2 to 0.4 percent of V; 1.0%-1.8% of Si and Fe. The preparation method comprises the steps of vacuum induction and vacuum arc remelting. Carrying out homogenization treatment and forging; extruding and annealing; cold rolling and annealing; and performing normalizing and tempering treatment. Through an efficient short-flow process route and reasonable smelting, pipe machining deformation and heat treatment processes, the microscopic structure of the material is remarkably improved, then the mechanical property and high-temperature lead and bismuth corrosion resistance of the finished pipe are improved, and the use requirement of the lead and bismuth cooling fast reactor fuel assembly cladding material under the high-temperature working condition is met.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Nodular cast iron material as well as preparation method and application thereof

The invention provides a nodular cast iron material and a preparation method and application thereof. The preparation method of the nodular cast iron material comprises the following steps that S1, a mixture of pig iron, low-manganese waste steel and foundry returns is heated to be completely molten, alloy and auxiliary materials are supplemented and adjusted to target components, and base iron is obtained; s2, a spheroidizing agent is added into the base iron to conduct spheroidizing treatment, ladle-to-ladle inoculation is conducted after spheroidizing treatment, and an efficient inoculant is added during ladle-to-ladle inoculation; s3, pouring is conducted, and during pouring, a long-acting stream inoculant is added for instantaneous inoculation; and S4, carrying out vibration aging treatment to obtain the nodular cast iron material. According to the nodular cast iron material, collaborative upgrading is achieved in the three dimensions of graphite form-matrix strength-thermal stress dissipation, in a bench test, the number of hot cracks is greatly increased, the service life is obviously prolonged, and reliable guarantee is provided for braking safety of heavy vehicles.
Owner:HENAN FENGBAO HEAVY IND TECH CO LTD

Copper-steel bimetal piece with complex inner runner and preparation method of copper-steel bimetal piece

The invention relates to the technical field of dissimilar metal connection, in particular to a copper-steel bimetal piece with a complex inner runner and a preparation method thereof.The preparation method comprises the steps that a cooling runner is preprocessed through a copper alloy blank, and a primary copper alloy workpiece is obtained; the primary copper alloy part is cleaned, and a secondary copper alloy part is obtained; the stainless steel blank is subjected to surface treatment and cleaning, and a stainless steel workpiece is obtained; the secondary copper alloy workpiece and the stainless steel workpiece are assembled and then are arranged in a sheath; the sheath is heated and vacuumized and then is sealed and welded; carrying out hot isostatic pressing treatment on the sealed and welded sheath to obtain an intermediate part; and the steel ladle sleeve outside the middle part is removed, and the copper-steel bimetal part is obtained. According to the method, the phenomena of generation of brittle intermetallic compounds on the interface and grain coarsening are avoided, the connection strength is remarkably improved, interface metallurgical bonding and high-precision shape control of a cooling runner are synchronously completed in a single process, and the geometric precision of the copper-steel bimetal part is guaranteed.
Owner:SINO EURO MATERIALS TECH OF XIAN CO LTD

Steel ladle air brick cleaning device

The utility model relates to the technical field of steel smelting, in particular to a steel ladle air brick cleaning device which comprises an air supply mechanism, a conveying mechanism, an air blowing mechanism, an adjusting mechanism and a display mechanism, the display mechanism is fixedly connected with the conveying mechanism, the air blowing mechanism is fixedly connected with the conveying mechanism, and the conveying mechanism is fixedly connected with the air supply mechanism. The adjusting mechanism comprises an adjusting seat, an adjusting ring, a vertical rod and an adjusting inner cylinder, the adjusting inner cylinder can change the conveying direction of gas in the conveying mechanism under the rotation of the adjusting ring, so that the conveying conditions of different gases in the same pipeline are realized, the design is simple to operate, and the problems that oxygen and nitrogen need to be separately conveyed and blown by working personnel, and the working efficiency is low are solved. The connecting pipelines are more, and the use is more inconvenient.
Owner:YINGKOU STONE HIGH TEMPERATURE NEW MATERIALS TECH CO LTD

High-strength and high-toughness medium manganese steel and preparation method thereof

The invention relates to the technical field of medium manganese steel, in particular to high-strength and high-toughness medium manganese steel and a preparation method thereof.The preparation method is characterized by comprising the steps that S1, smelting is conducted through an electric furnace according to the chemical component ratio of the medium manganese steel, then refining is conducted through a ladle refining furnace, then vacuum degassing treatment is conducted through a vacuum circulation degassing method, and then continuous casting is conducted to form a plate blank with the thickness being 200-300 mm; s2, the plate blank is heated to 1150-1250 DEG C in a walking beam furnace, heat preservation is conducted for 2-4 hours, and then a controlled rolling technology is adopted to machine the plate blank into a steel plate within the range of 4-20 mm; s3, after rolling is completed, the steel plate is treated through a composite cooling technology of ultra-fast cooling and laminar cooling; s4, the cooled steel plate is heated to 750-850 DEG C, heat preservation is conducted for 10-60 minutes, and a ferrite and austenite double-phase structure is formed; the comprehensive performance is greatly improved, and excellent strength, plasticity, low-temperature toughness and welding adaptability are shown.
Owner:SHANDONG UNIV OF SCI & TECH

High-quality copper material pouring equipment

The invention relates to the technical field of continuous casting of copper materials, in particular to high-quality copper material pouring equipment which comprises a driving frame and a horizontal continuous casting machine body, an alignment frame is arranged on the top face of the driving frame, and a pouring assembly for pouring molten copper liquid into the horizontal continuous casting machine body is arranged on the alignment frame. A connecting assembly used for moving the alignment frame is arranged between the driving frame and the alignment frame, and two sets of alignment assemblies used for accurately aligning the alignment frame and the horizontal continuous casting machine body are symmetrically arranged on the side face of the alignment frame. Two sets of positioning assemblies matched with the alignment assemblies are symmetrically arranged on the side face of the horizontal continuous casting machine body. By means of the linkage design of the positioning assembly and the alignment assembly, the position of the alignment frame can be automatically adjusted, the tundish and the horizontal continuous casting machine body are accurately aligned to the same horizontal position, it is ensured that a pouring nozzle is aligned to the center of a material opening, and the problem of molten copper splashing or uneven pouring caused by position deviation is solved.
Owner:QINGDAO SHENGERTAI EQUIP CO LTD

Storage battery power supply capping structure of hot metal car

The utility model belongs to the technical field of metallurgical industry production equipment, and discloses a molten iron car storage battery power supply capping structure which comprises a car frame, a molten iron tank is arranged on the car frame, a capping device is arranged at a tank opening of the molten iron tank, and a hydraulic station is arranged on the car frame and located on one side of the molten iron tank. The hydraulic station is used for supplying energy to the capping device and controlling the capping device to be opened or closed, a containing cabin is arranged on the frame and located in the area below the hydraulic station, a battery pack and a control box are arranged in the containing cabin, the battery pack is used for supplying power to the control box, and the control box is used for sending an action instruction to the hydraulic station. According to the hot metal car storage battery power supply capping structure, the independent power supply and control functions of the capping device of the hot metal car are achieved through the battery pack and the control box, the problems that fixed-point parking power connection and marshalling connection are needed are solved, the field manual operation difficulty is lowered, an electrical control system is simplified, and feasibility is provided for achieving factory unmanned operation.
Owner:WUXI LICHENG HYDRAULIC MASCH CO LTD

Dynamic pouring control method for hot-metal bottle

The invention discloses a dynamic pouring control method for a hot-metal bottle, which belongs to the technical field of metallurgical industry automation control, and comprises the following steps: carrying out high-precision dynamic weighing and vibration compensation on the hot-metal bottle; performing multi-source sensing and safety monitoring on the hot-metal bottle; self-adaptive dumping speed control is realized based on the flow speed of molten iron in the molten iron tank; parameter optimization is carried out, and optimal control parameters are output; and setting a security protection strategy. The problems that an existing molten iron tank is insufficient in control metering precision, extensive in control mode and weak in safety protection can be solved, and blast furnace molten iron can be transferred and poured through the molten iron tank more efficiently, intelligently and safely.
Owner:JINAN IRON & STEEL GRP INT ENG CO LTD

A method for producing a large-wall-thickness pipeline steel with improved carbon dioxide corrosion resistance and toughness

The present application relates to the technical field of metallurgy, and particularly relates to a production method of a large-wall-thickness pipeline steel with improved carbon dioxide corrosion resistance and strength and toughness, and specific measures include: (1) controlling the bottom blowing mode and end point requirement in the converter process; (2) controlling the tapping time and replacing the tapping hole opportunity in the tapping process; (3) feeding the CAS aluminum wire and controlling the CAS argon blowing time; (4) controlling the top slag addition amount, heating time and outgoing mode in the LF refining process; (5) controlling the wire feeding parameters, soft blowing time and outgoing requirement of RH in the RH refining process; (6) controlling the precision requirement, casting speed fluctuation and crystallizer liquid level fluctuation of the continuous casting equipment in the continuous casting process to obtain the casting blank. Through controlling the parameters of each process in the smelting and rolling process, the present application realizes the whole-process steel cleanliness control and ladle grain refinement, and further improves the strength, low-temperature toughness, HIC resistance and carbon dioxide corrosion resistance of the large-wall-thickness pipeline steel.
Owner:SD STEEL RIZHAO CO LTD

RH refining water model flow field monitoring device and method based on trackball

The invention belongs to the technical field of steel smelting, and particularly relates to an RH refining water model flow field monitoring device and method based on a trackball. An RH refining water model flow field monitoring device based on trackballs comprises an RH refining water model, a trackball unit, an image acquisition unit and a data processing and display unit, the RH refining water model comprises a vacuum tank and a simulation steel ladle, simulation molten steel and a circulating water pump are arranged in the simulation steel ladle, the trackball unit comprises a plurality of trackballs, and the trackball unit is connected with the vacuum tank and the simulation steel ladle. The tracking balls are dispersed in simulated molten steel, the tracking balls are hollow balls, micro wireless sensors, storages and wireless transmission signal communication modules are arranged in the tracking balls, the image acquisition unit comprises a plurality of cameras, and the data processing and display unit is connected with the image acquisition unit. The liquid flow field change in the vacuum tank is collected and analyzed by adopting the motion trail of the tracking ball, the real-time visual monitoring of the flow field characteristics is realized, and the device has the advantages of low cost, high precision, strong adaptability and the like.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO

Liftable steel ladle bottom argon blowing automatic joint device with double four connecting rods

The utility model relates to the technical field of bearing disassembly metallurgy vehicle automatic joint devices, in particular to a double-four-connecting-rod lifting steel ladle bottom argon blowing automatic joint device which comprises a bottom argon blowing arc-shaped male joint, a high-temperature-resistant seal and a supporting frame, and the bottom argon blowing arc-shaped male joint is arranged above a fixing rod and can slide up and down. The device is characterized in that a four-connecting-rod lifting mechanism is arranged in the supporting frame, and the four-connecting-rod lifting mechanism is connected with the fixing rod; the bottom argon blowing arc male connector and the fixing rod are directly provided with a compression spring. The utility model has the advantages that: firstly, the spherical guide of the male connector is utilized, the sealing connection of the conical spring is reliable, the ladle car can be transformed and used on the basis of the original ladle car, the manufacturing cost is low, the sealing is reliable, steel slag blocks can conveniently flow down along the conical surface, the conical surface sealing is not easy to remain steel slag, and the conical surface is firmly matched without air leakage; and secondly, the device is simple in structure and convenient to transform and install, the working intensity of the bottom argon blowing joint of a maintainer is reduced, and the steelmaking labor productivity is improved.
Owner:YANCHENG LIANXIN IRON & STEEL CO LTD

Antioxidant and application thereof in steel ladle slag line brick

The invention relates to the technical field of refractory materials, in particular to an antioxidant and application thereof in steel ladle slag line bricks, and the antioxidant comprises a Si / SiC multiphase material, modified nano Al2O3 and CaF2; the ladle slag line brick comprises an antioxidant, fused magnesite, crystalline flake graphite and phenolic resin. Si-SiC compound waste is subjected to magnetic separation and acid pickling, then a SiO2 passivation layer is formed through pre-oxidation, moisture and air in the storage period are isolated, and a titanate coupling agent is introduced to improve the wettability and compatibility with phenolic resin. P2O5 released by phosphate on the surface of the modified nano Al2O3 at a high temperature reacts with alkali (earth) metal migrated to a SiO2 oxide layer to prevent the alkali (earth) metal from forming a low-melting-point eutectic substance, CaF2 reacts with SiO2 along with temperature rise, a passivation layer is broken, internal Si and SiC are directly exposed, and boron oxide of the modified nano Al2O3 remarkably reduces activation energy and a temperature threshold value of the reaction of CaF2 and SiO2.
Owner:ZHONGMIN CHIYUAN IND

Crown block operation monitoring method and system

The invention provides a crown block operation monitoring method and system, relates to the technical field of remote monitoring of crown blocks, is applied to ground monitoring equipment, and specifically comprises the following steps: acquiring crown block position information of a target crown block from crown block control equipment; target information of target operation executed by the target crown block is determined according to the crown block position information, the target operation comprises ladle hanging operation and / or ladle removing operation, the ladle hanging operation is operation of hanging a plate hook of the target crown block into a trunnion of a target steel ladle, and the ladle removing operation is operation of removing the plate hook from the trunnion; the target information is sent to the crown block control equipment, so that the crown block control equipment controls the target crown block to enter a target range to execute the target operation; when it is determined that the target crown block enters the target range, first identification information and second identification information are obtained, the first identification information is obtained by monitoring the target crown block through a two-dimensional identification technology, and the second identification information is obtained by monitoring the target crown block through a three-dimensional identification technology; and monitoring whether the target crown block successfully executes the target operation or not according to the first identification information and the second identification information.
Owner:SHOUGANG JINGTANG IRON & STEEL CO LTD

Smelting method for silicon deoxidation of low-carbon low-silicon aluminum killed steel

The invention relates to the technical field of ferrous metallurgy, in particular to a smelting method for silicon deoxidation of low-carbon low-silicon aluminum killed steel. The method comprises a converter, an alloy fine adjustment station, RH refining and continuous casting. A strong bottom blowing mode is adopted in the later stage of converter blowing, and high-carbon ferromanganese, a ferrosilicon deoxidizing agent and lime are sequentially added during tapping; and after temperature measurement and sampling in the alloy fine tuning station, the steel ladle is transported to RH refining. And the RH executes different treatment modes according to Si and C components of the alloy fine tuning station, such as oxygen blowing decarburization and desilicication, direct aluminum particle addition alloying or vacuum reserved oxygen decarburization and the like. Through cooperation of silicon pre-deoxidation and aluminum final deoxidation, the oxygen content of RH entering molten steel and consumption of an aluminum deoxidizing agent are reduced, and the cleanliness of the molten steel is improved; different treatment modes shorten the treatment period, reduce the final temperature of the converter, meet the low-carbon and low-silicon requirements, reduce the production cost and improve the production efficiency.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

Movable steel ladle casting device

The utility model discloses a movable steel ladle casting device which comprises a steel ladle and a barrel cover, the bottom of the steel ladle is provided with a supporting assembly, the supporting assembly comprises a base and a supporting plate, the outer side of the steel ladle is provided with a rotating assembly, the rotating assembly comprises a rotating roller and a worm gear insection, the base is provided with a driving assembly, and the driving assembly is connected with the supporting plate. The movable steel ladle casting device comprises a base, a driving assembly is installed on the base and comprises a first motor and a worm, a sliding assembly is installed on the base and comprises a sliding sleeve and a sliding rod, and a pushing assembly is installed on the inner side of the sliding sleeve. The sliding rods drive the rolling wheels to move leftwards, the supporting range of the base is widened, then the stability of the gravity center of the steel ladle is improved, the situation that the steel ladle topples over when molten steel is toppled over is avoided, the working safety of the steel ladle is effectively guaranteed, and the steel ladle toppling device is suitable for transporting and pouring the molten steel.
Owner:DAYE YAXIN WEAR-RESISTANT MATERIALS CO LTD

Pouring device and method capable of dynamically adjusting position, flow rate and flow direction of pouring gate

The invention belongs to the technical field of casting, and particularly relates to a pouring device and method capable of dynamically adjusting the position, flow and flow direction of a pouring gate, the pouring device comprises a pouring ladle, a casting mold and a pouring pipe, the upper end of the pouring pipe is arranged on the pouring ladle, and the lower end of the pouring pipe is inserted into a cavity in the casting mold; the multi-degree-of-freedom movement mechanism is connected with the pouring pipe and is used for regulating and controlling the position of the pouring pipe; the sprue opening and closing assembly is used for controlling the opening and closing state of the sprue; the lateral flow outlet opening and closing assembly is used for controlling the opening and closing state of the lateral flow outlet; according to the pouring device and method, the design difficulty of a pouring system and the casting mold preparation difficulty are simplified, the process yield of castings is increased, the mold filling state, the mold filling capacity and the solidification feeding effect of molten metal are optimized, and the casting quality is improved. And the quality of the casting is improved, the flexibility and controllability of the production process are improved, and fusion with other technologies is facilitated.
Owner:NINGBO INST OF DALIAN UNIV OF TECH +1

Automatic transfer robot for hot metal ladles

The invention discloses an automatic transfer robot for a ladle. The automatic transfer robot comprises a robot body, a gate-type mechanical arm system, a ladle clamping and overturning assembly, an intelligent sensing system and an electrical control system. A servo-driven X-Y plane moving device is arranged at the bottom of the robot body, so that two-dimensional free movement is realized; the door type mechanical arm system comprises symmetrical mechanical arms, a connecting beam and a lifting and telescopic driving assembly and adapts to different positions. The clamping turnover assembly adopts a three-point positioning clamping and servo turnover device and integrates a manual switching system and a weighing system, so that accurate dumping is realized; the intelligent sensing system detects the positions of an iron outlet and a material receiving opening through laser vision; and the electrical control system cooperatively controls each component to realize automatic butt joint. The robot further comprises an automatic ladle cover opening and closing mechanism and a safety protection system, and safety is improved. Through automatic and intelligent design, the molten iron transfer safety and stability are improved, and the system is suitable for casting workshops and particularly suitable for transformation of old workshops.
Owner:CMCU ENG

Heat accumulating type natural gas ladle baking device

The invention relates to the field of ladle baking devices, in particular to a heat accumulating type natural gas ladle baking device which comprises a steel ladle heating furnace and further comprises a ladle baking cover, the front end of the steel ladle heating furnace is fixedly connected with the ladle baking cover, reinforcing rods are fixedly installed at the left end and the right end of the ladle baking cover, and an installation frame is arranged at the rear end of the steel ladle heating furnace. A hydraulic lifting platform is arranged at the lower end of the steel ladle heating furnace, the two mounting frames are located on the left side and the right side of the steel ladle heating furnace, a heat preservation block is fixedly mounted at the upper end of the ladle baking cover, and a temperature measuring sensor is arranged at the upper end of the heat preservation block. After natural gas and combustion-supporting air are mixed, the high temperature is kept, heat needed by combustion is reduced, energy consumption is reduced, switching between the two heat storage cavities is achieved through the multiple control valves, the controller is matched for control, exchange type heat storage and combustion are achieved, the waste heat recovery effect is improved, meanwhile, the heating effect on the combustion-supporting air is guaranteed, and the energy consumption is reduced. The pouring construction time is prolonged, and the practicability is improved.
Owner:HEBEI GAOYUAN FURNACE CO LTD