208results about "Melt-holding vessels" patented technology

The application discloses a stopper rod for inhibiting confluence vortex and a method thereof, and belongs to the technical field of water gap flow control of continuous casting tundish in metallurgy technology. The stopper rod comprises a stopper rod shell, a stopper rod core is embedded in the stopper rod shell, a magnetic field generating device is arranged on the outer circumferential wall of the stopper rod core, and the magnetic field generating device is used for exciting a magnetic field directly above the water gap. The magnetic field generating device is an electromagnetic coil or a rotating magnetic field stirrer. The application can effectively inhibit the generation of confluence vortex at the end of pouring by adding an electromagnetic field to make the molten steel generate induced current. Meanwhile, the magnetic field excited by the application is formed directly above the water gap and has the maximum strength at the vortex forming position, so that the inhibition effect of the magnetic field on the confluence vortex is more direct, the inhibition effect is obvious, and energy waste is avoided.

The utility model discloses a melt steel ladle transport vehicle positioning device which comprises a device base, a driving wheel is arranged on the outer side of the bottom end of the device base, a placing table is fixedly arranged on the top of the device base, a positioning table is arranged at the top end of the placing table, and a positioning block is arranged on the outer side of the positioning table. An auxiliary supporting plate is fixedly connected to the top end of the positioning block, a steel ladle is arranged at the top end of the positioning table, a driving assembly is arranged at the bottom of the positioning table, and a driving motor is arranged at the bottom of the driving assembly. The synchronous plate drives the movable blocks to move through the connecting rods and the rotating shafts, so that the movable blocks move in the sliding grooves, when the synchronous plate drives the multiple sets of connecting rods, the positioning blocks corresponding to the tops of the movable blocks are synchronously driven to move, the distance between the positioning blocks is changed through synchronous movement of the positioning blocks, and steel ladles of different sizes are clamped, fixed or loosened.

This invention relates to the field of refractory materials technology, specifically to an anti-slag-adhesion environmentally friendly refractory spray coating adapted to the contact surface of an tundish cover and its preparation method. The dry powder of this spray coating mainly consists of corundum aggregate, modified spinel powder, composite binder, and modified anti-slag additives. Through precise gradation and spatial decoupling of components, a strong and tough skeleton is constructed. During water addition, rheological changes, and baking, the anti-slag additives spontaneously target and migrate outwards, reconstructing a superhydrophobic slag-repellent armor on the slag-facing surface. Combined with the internal spinel-based slag-locking and deformation buffer defense lines, a gradient synergistic defense is achieved. This invention is completely chromium-free and environmentally friendly, completely eliminating the pain point of high-temperature slag adhesion and spalling, extending its service life to 40 heats, and is suitable for large-scale adaptation to special steel continuous casting conditions.

This invention relates to a refractory early warning brick for steelmaking equipment based on a variable cross-section design, comprising a central brick and two edge bricks. The two edge bricks have identical dimensions and are symmetrically laid on both sides of the central brick. The contact surfaces of the central brick and the two edge bricks are assembled in a three-section manner from the hot end to the cold end: "opposite arc surface - straight surface - opposing arc surface"; the length of the relative arc surface... L 1 represents the normal operating section; length of the straight surface. L 2 is the warning section; length of the opposite circular arc surface L 3 represents the mandatory removal segment; the thickness H of the warning brick should be equal to or an integer multiple of the height of the target lining layer. This warning brick adopts an integral three-segment design, with each segment having a visually distinct cross-sectional shape. During high-temperature service, simply observing the shape characteristics of the warning brick exposed on the working surface allows for accurate determination of the current remaining thickness range of the lining at that location, thus providing excellent auxiliary guidance for relevant personnel to quickly make removal decisions.

The application provides a molten steel maximum transfer temperature determination method for avoiding excessive sintering of drainage sand to cause ladle oxygen burning and tapping. The method first breaks the sintered shell of the drainage sand formed at different molten steel temperatures to obtain a broken pressure P at different temperatures T, and draws a T-P curve graph with the temperature T as the horizontal axis and the broken pressure P as the vertical axis. In the actual production process, the actual molten steel pressure P0 received by the drainage sand is calculated, and the corresponding temperature is obtained through the T-P curve graph, that is, the molten steel maximum transfer temperature T max . According to the above determined molten steel maximum transfer temperature, the self-opening of the drainage sand of 100 IF steel ladles in the actual production process is tracked, and it is found that when the transfer temperature of the molten steel is lower than T max , the self-opening rate of the ladle drainage sand can reach 100%, and when the temperature is higher than T max , the self-opening rate of the ladle drainage sand is reduced to 33.3%, which proves the accuracy of T max determined according to the method provided by the application.

The utility model provides a small -size ladle tank transport vechicle with lid closing device belongs to molten iron transportation technical field, technical scheme is a small -size ladle tank transport vechicle with lid closing device, including the cover, be provided with two levers on the cover, two levers are located cover's both sides respectively, lever is L shape structure, one end of lever is fixedly connected with the side of cover, the other end of lever is rotatably connected with the piston rod end of hydraulic cylinder, the cylinder tube of hydraulic cylinder is rotatably connected with the top of fixed frame, the bottom of fixed frame is fixedly connected with the top of car body. The utility model has the beneficial effect that the lever of L shape is through the extension power arm length, has reduced the driving force required by cover opening significantly, effectively prevents the unexpected back fall of cover in the rising position, ensures the safety reliability of operation process.

This invention discloses a mobile aluminum ladle baking device, relating to the field of metallurgical equipment technology. It includes a base frame, with a lifting unit and several support frames fixedly mounted on the upper end of the base frame. An installation unit is located on the front side of the lifting unit, and an igniter unit is fixedly connected to the bottom front side of the installation unit. A gas delivery unit is located on the upper part of the support frames, a gas control unit is located on the upper right side of the installation unit, and an air supply unit is located on the upper left side of the installation unit. This invention, through the base frame, electric forklift, traveling unit, and support units, achieves flexible movement, rapid positioning, and stable support of the device within the work area; the lifting unit enables precise lifting of the installation unit, igniter unit, gas control unit, and air supply unit; and the gas delivery unit, gas control unit, air supply unit, and igniter unit ensure safe gas delivery and precise gas-air mixing.

The application discloses a tundish slag layer detection method, and relates to the technical field of tundish, and comprises the following steps: step one, starting the driver installed on the gantry to make the opening of the tundish face the working surface; step two, starting the slide rail below the gantry to move the multi-axis arm robot to the exact position below the tundish to make the arm robot completely cover the inner cavity of the tundish with the high-definition probe on the end; the technical key points are that the whole tundish is inverted, the high-definition probe is combined with the identification and calculation technology of the slag layer, on the one hand, the total mass Mt of the slag layer can be efficiently estimated and processed, and on the other hand, the accuracy of the total mass Mt result calculation of the slag layer can be ensured, the comparison result of the slag layer removal efficiency prediction value Xy and the standard threshold value can be used to obtain the prediction efficiency of the cleaning work after the tundish slag layer detection is completed, and the subsequent related adjustment can be carried out according to the prediction efficiency.

This invention proposes a ladle working lining construction system and method, relating to the field of metal casting technology. The ladle working lining construction system includes a construction component, a feeding mechanism, a brick cutter, and a host computer. The construction component includes a lifting platform, a ring-shaped pallet, a construction robotic arm, and a first vision module. Multiple ring-shaped pallets are installed on the lifting platform. The first vision module is installed at the end of the construction robotic arm. The feeding mechanism includes a refractory brick stacking area, a feeding robotic arm, a second vision module, and a flexible conveyor line. The feeding robotic arm is installed on the side of the refractory brick stacking area. The second vision module is installed at the end of the feeding robotic arm. The flexible conveyor line is used to transport refractory bricks downwards. By automatically calculating data using the host computer instead of manually compiling material lists, and combined with a redundant material preparation mechanism, the reliance on manual operation experience in the ladle working lining construction process is reduced, improving the efficiency and speed of the construction operation, and ensuring positional accuracy and structural consistency.

The invention relates to a device for processing molten metal, said device comprising a ladle defining an internal volume for containing said molten metal, and means for rotating said ladle about an axis of rotation. According to the invention, said ladle comprises a peripheral wall and an internal bottom wall that are essentially smooth, and said device comprises at least one mixing arm capable of assuming a mixing position in which it is at least partially immersed in said internal volume of said ladle and in which it is fixed relative to said ladle (Fig. 2).

The application discloses a kind of safety automatic control flow's casting equipment, including melt pool, aluminium water inlet pool and pump chamber, melt pool is connected to aluminium water inlet pool by aluminium water channel in furnace, pump chamber is connected with aluminium water inlet pool by bottom inlet channel, impeller is provided in pump chamber, aluminium water outlet channel is connected with aluminium water steady flow pool above pump chamber, aluminium water steady flow pool bottom is provided with steady flow pool flow eye, steady flow pool flow eye is connected with outlet flow groove, steady flow pool flow eye outer end is provided by the plug head for plugging steady flow pool flow eye;Method, S1: melt raw material in melt pool, obtain aluminium water;S2: aluminium water flows into to pump chamber, then flows into to aluminium water steady flow pool;S3: aluminium water in aluminium water steady flow pool, flow into to outlet flow groove;S4: aluminium water in outlet flow groove flows into to corresponding aluminium piece casting tray, corresponding need to be manufactured aluminium piece can be obtained;Effect: method structure is novel, steady flow pool flow eye and melt pool are not directly communicated, increase insurance for aluminium casting safety, guarantee safety.

The utility model relates to long water gap related technical field especially relates to a glaze anti -crack type long water gap, the inside of long water gap ladle end, long water gap middle transition section and long water gap tundish end all is equipped with buffer composite component, the inner wall of long water gap ladle end, long water gap middle transition section and long water gap tundish end is provided with anchor assembly. The utility model discloses through the setting of buffer composite component, through the gradient change's honeycomb hole and hole, the nanometer heat conduction coating of dynamic adjustment heat conduction efficiency, realizes thermal stress dispersion and temperature regulation, and buffer composite component cooperates anchor assembly and anchors gradually complementary, and the destruction of heat stress to glaze layer is reduced to heat dissipation and buffer structure, and the anchor structure guarantees that glaze layer does not fall off under certain thermal stress and external force effect, and the anti -crack of long water gap glaze is realized together, and the overall performance and service life of long water gap are improved.

The present application relates to the field of device for supporting, operating or replacing casting nozzle of a container for casting a melt, in particular to a submerged nozzle quick-change and crystallizer slagging robot system and a use method thereof. The submerged nozzle quick-change and crystallizer slagging robot system comprises an execution module (1), a visual positioning module (2) and a centralized control system (3), characterized in that: the execution module (1) comprises an inverted track robot (11) and an end effector (12); the visual positioning module (2) comprises at least one binocular camera (21); and the centralized control system (3) comprises a programmable logic controller (31), an industrial computer (32) and a robot control cabinet (33). The present application has high automation degree, reduces labor intensity and improves production efficiency.

The invention relates to a device for treating molten metal, the device comprising a ladle defining an internal volume intended to contain the molten metal, and means for rotating the ladle about an axis of rotation. According to the invention, the ladle comprises an inner peripheral wall and an inner bottom wall that are substantially smooth, and the device comprises at least one stirring arm capable of assuming a stirring position in which it is at least partially immersed in the internal volume of the ladle and in which it is stationary with respect to the ladle.

This invention discloses a ladle bottom with a partition wall structure for steel or iron ladles, comprising a permanent layer and a working layer sequentially cast into the bottom. A partition wall is provided between the permanent and working layers, dividing the bottom into multiple independent areas. The lower part of the partition wall is embedded in the permanent layer, and the upper part is embedded in the working layer. Bottom-blown permeable bricks are also provided on the bottom, placed within the corresponding independent areas. This invention reduces destructive operations on the entire ladle bottom, reduces refractory material consumption and operation time, and also helps improve the integrity of the furnace lining structure. It can reduce the amount of furnace bottom castable, increase construction speed, improve the safety of steel or iron ladle operation, and reduce the occurrence of accidents.

The present invention relates to a method for obtaining a product made of titanium alloy or a titanium-aluminium intermetallic compound by plasma torch melting, the alloy having an oriented structure, the method comprising heating the molten alloy (1) in a casting ring (2) by means of a plasma torch (3); cooling a cold zone (21) of the casting ring over a length L1, the cooling forming a semi-solid crown (12) of alloy; heating a hot zone (22) of the casting ring over a length L2, thereby forming a solidification front (13), the flatness of which relative to a plane perpendicular to a drawing direction is less than 10°; and drawing the solidified alloy (14) at a speed of more than 10-4 m / s in the drawing direction. The present invention also relates to a device for implementing said method.

The application provides a ladle slide plate and a preparation device, and belongs to the technical field of the ladle slide plate, and solves the problems of difficult stress release and easy cracking deformation of the slide plate under high-temperature thermal relaxation cycle. The slide plate comprises a base layer, a symmetric working layer, a peripheral buffer layer and a supporting shell, the buffer layer is composed of an elastic layer and a rigid layer, the two layers are inclined and attached at an angle of 15-30 degrees, a gap is filled with a buffer strip, the elastic layer slips to release force when thermal expansion, and the elastic layer and the buffer strip are reset cooperatively when cooling, and each layer is made of adaptive refractory and heat-resistant steel material. The preparation device is provided with a press with three sets of male and female molds, a matched quantitative powder feeding assembly, a female mold with a built-in graphite lubricant coating structure and a blank body transfer mechanism, and through three-station step pressing, directional powder feeding, interface lubrication preposition and automatic transfer, the slide plate is uniformly formed and integrated. The application improves the anti-thermal deformation cracking capacity of the slide plate, guarantees the forming quality, and is suitable for the harsh service environment of steel smelting.

This utility model provides an argon blowing device for a ladle car, belonging to the technical field of continuous casting equipment in the metallurgical industry. It includes a ladle, a ladle car, and an argon blowing supply system. A dry connector connected to the argon blowing supply system is installed between the ladle and the ladle car. The upper half of the dry connector is mounted on the ladle and sealed to the gas supply pipelines of two argon blowing holes inside the ladle. The lower half of the dry connector is mounted on the ladle car, its position corresponding to the position of the upper half when the ladle is placed on the ladle car. Simultaneously, the air inlet of the lower half of the dry connector is connected to the argon blowing supply system through a gas supply pipeline. When the ladle is placed in the predetermined position on the ladle car, the upper and lower halves of the dry connector automatically align, opening the argon gas passage. When the ladle is lifted off the ladle car, the upper and lower halves of the dry connector automatically separate and disconnect. This utility model can reduce safety hazards, shorten operation time, reduce the labor intensity of workers, and improve the reliability of the connection.

The utility model provides a kind of spray package multidimensional adjusting device, belong to amorphous strip production equipment technical field, including rack body, setting on the horizontal rail of rack body and setting on the moving component of horizontal rail, wherein, moving component includes two horizontal transverse moving components symmetrically set in the two ends of horizontal rail, two vertical moving components are respectively correspondingly set in the one end of two horizontal transverse moving components away from the end of horizontal rail, two horizontal longitudinal moving components are respectively correspondingly set in the one end of two vertical moving components away from corresponding horizontal transverse moving component, two swing components are respectively correspondingly set on two horizontal longitudinal moving components.The utility model can make spray package along horizontal transverse move, along vertical direction moves, to left or to right tilt, along horizontal longitudinal move, forward and backward tilt, realize the accurate control of the relative position of spray package nozzle and crystallizer in amorphous strip preparation process, improve the edition and appearance quality of amorphous strip.

The application relates to the technical field of refractory materials, in particular to an aluminum-carbon brick for refining ladle walls and a preparation process thereof, which comprises tabular corundum aggregates, alpha-type alumina micropowder, flaky graphite, oxide composite powder, silicon carbide-based composite powder, lanthanum-hafnium composite oxide nanometer powder, aluminum powder, carbon black and thermosetting phenolic resin. The oxide composite powder accelerates the reduction reaction of ferrous oxide on the surface of the brick body, so that the ferrous oxide is rapidly consumed by carbon in a very shallow layer on the contact surface of the brick, and the penetration of the ferrous oxide into the interior of the brick body is prevented; the silicon carbide-based composite powder fixes the liquid iron obtained by surface reduction in situ, so that the liquid iron cannot freely flow and contact the refining slag again; the lanthanum-hafnium composite oxide nanometer powder strengthens the structural stability, and the obtained brick body can better meet the use requirements of long-term high-strength service of the refining ladle walls.

The application relates to the technical field of materials, in particular to an anti-erosion low-carbon backing brick refractory material and a preparation method thereof, which comprises fused magnesia coarse aggregate, fused magnesia medium aggregate, fused magnesia fine powder, zircon carbide anchoring modified flaky graphite, boron-doped lignin-based titanium carbide composite powder, nano hafnium carbide and phenolic resin binder; the synergistic protection of the three functional components of the zircon carbide anchoring modified flaky graphite, the boron-doped lignin-based titanium carbide composite powder and the nano hafnium carbide effectively solves the problems that, under the VD vacuum degassing working condition, the MgO in the existing low-carbon magnesia-carbon backing brick reacts with residual carbon in the brick to cause gasification, and the antioxidation additive promotes the reaction and aggravates the damage to the brick structure.

This invention discloses a method for preparing a composite-layer reinforced long-life zirconia sizing nozzle. The method involves uniformly mixing yttrium-stabilized zirconia fine powder, high-purity calcium hexaaluminate fine powder, activated alumina fine powder, and calcium aluminate cement, adding deionized water and stirring until homogeneous, casting into a mold, demolding, and drying to obtain a composite layer preform. The composite layer preform is then isostatically pressed, sintered, cooled, crushed, ball-milled, and sieved to obtain composite layer powder. Activated alumina fine powder, yttrium oxide fine powder, calcium aluminate cement, and the composite layer powder are then uniformly mixed, water is added, and the mixture is rolled to obtain a mud. This mud is then bonded to the inner wall of the nozzle body's inner bore, dried, isostatically pressed, and sintered to obtain the finished product. The composite layer in this invention has the characteristics of being non-wetting and non-reactive with molten steel. The prepared nozzle exhibits excellent thermal shock resistance, erosion resistance, scour resistance, and high strength, improving the cleanliness of molten steel during continuous casting and contributing to the improvement of billet quality.

The utility model discloses a kind of positioning device of ladle rotary table, including rotary support platform, rotary frame, ladle main body and positioning support mechanism;Rotary support platform top surface is connected with rotary frame by lifting rotary mechanism, a pair of ladle main body is set, and is respectively fixed by positioning support mechanism limit in rotary frame two sides;Positioning support mechanism includes fixed plate, locating plate and adjusting mechanism, fixed plate is welded and fixed in rotary frame outer wall, locating plate is set in the other side of fixed plate, and mirror image is set with a pair, two locating plates are mutually close or far away under the action of adjusting mechanism, after ladle main body is placed between two locating plates, it is placed stable by the locating groove of locating plate, and the ladle main body of different size is positioned and supported.The utility model is compared with prior art's advantage lies in: by a pair of locating plate and adjusting mechanism, can be automatically adjusted according to ladle size, applicable to the ladle main body of different diameter or external dimensions, improve versatility.

This invention relates to a steel flow control device between the tundish and the crystallizer in the continuous casting area of ​​a steel plant, specifically an automated tundish quick-change mechanism. This invention utilizes a hydraulic cylinder to achieve online replacement of the lower nozzle. The hydraulic cylinder, via a pusher shaft, drives the pusher arm and pusher block to deflect and move horizontally, completing the actions of avoiding the upper nozzle being mounted onto the track pin and then horizontally replacing the old lower nozzle after it has been mounted by a robotic arm. Precise position control is achieved through track grooves, positioning grooves, and positioning heads on the pusher shaft, ensuring that the axes of the upper and lower nozzles coincide after replacement, thus avoiding the problem of short lower nozzle lifespan caused by inaccurate alignment of the lower nozzle with the upper nozzle in the past.

The utility model discloses a kind of ladle nozzle processing tools, it is related to steelmaking process technical field, comprising: working pipe body and guide pipe body, the first end of first pipe body is used to extend into the nozzle eye of ladle and can be contacted with foreign matter in nozzle eye and knock out foreign matter;The first end of guide pipe body is used for the vertical fixed connection of the second end of working pipe body and intercommunication, to enable operator to hand guide pipe body and guide working pipe body into nozzle eye, the second end of guide pipe body is used for connection with nitrogen gas source and intercommunication to make nitrogen blow out from the first end of working pipe body;Nitrogen gas blown out by working pipe body first end can blow down pulverized slag in nozzle eye, simple structure, convenient to use, effectively ensure that the foreign matter of nozzle eye after rapid processing ladle slagging vertical pot, guarantee production smooth.

The utility model discloses a kind of intermediate ladle nozzle structures for stopper, belong to metallurgical equipment technical field, including intermediate ladle, nozzle and stopper. Nozzle is set in the bottom of intermediate ladle, multiple limiting parts are provided on nozzle, and overflow passage is formed between adjacent limiting parts. Stopper is provided with guiding part corresponding to the contact of multiple limiting parts. Limiting part is the limiting guide structure that nozzle top wall protrudes, guiding part is the contact surface that stopper is matched with limiting part, guiding part slides along limiting part inner wall when stopper drops, and the centring of stopper axis and nozzle axis is forced to correct. Overflow passage is the gap between limiting part, for molten steel flow. The mechanical guide pair formed by limiting part and guiding part can constrain stopper radial deviation, avoid unilateral erosion nozzle or molten steel leakage.

The application discloses a kind of steel continuous casting tundish slag line early warning equipment and method, belong to steel continuous casting technical field, the steel continuous casting tundish slag line early warning equipment includes tundish and the fast insertion type temperature measuring kit being set on tundish, fast insertion type temperature measuring kit includes high temperature infrared temperature sensor probe, high temperature infrared temperature sensor probe is connected touch screen industrial computer by RS485 bus, high temperature infrared temperature sensor probe is used to real-time acquisition tundish shell temperature value;Touch screen industrial computer is used to automatically analyze the temperature value and control alarm light to carry out safety early warning.The application judges the safety degree of refractory layer thickness by monitoring tundish shell temperature, can prevent the accident of wearing package that occurs in production process, improve tundish service life, realize the purpose of safe production, cost reduction and efficiency improvement, can solve the problem that real-time monitoring and early warning of tundish slag line is lacked in prior art when steel continuous casting, safe production, cost reduction and efficiency improvement cannot be realized.

The utility model discloses a kind of composite ladle refractory bricks, relate to refractory brick field.The utility model includes refractory brick, the refractory brick includes arc brick body, the back of arc brick body is equipped with multiple equidistantly arranged round holes, by setting up multiple equidistantly arranged round holes and being set in hole and being in honeycomb structure's reinforcing bar of arc brick body back, wherein, multiple round holes are evenly distributed along the back of arc brick body, reinforcing bar is penetrated multiple round holes and forms continuous support structure, this design principle is in, honeycomb structure's reinforcing bar can effectively disperse and transmit stress, when refractory brick is subjected to high temperature and generates thermal stress, or suffers mechanical impact, stress can be reasonably distributed between multiple round holes by reinforcing bar, avoid stress concentration phenomenon.

This utility model discloses a continuous casting tundish nozzle protection pouring device. The air seal holes of the device adopt a ring array design and match the conical contour of the nozzle, which enhances the uniformity of the air curtain coverage and effectively solves the problem of local negative pressure air intake caused by turbulence at the joint of the split nozzle. The ring hollow tube and the metal hose adopt a quick connector to achieve quick disassembly and assembly, so that the device can be replaced within seconds after damage, which significantly shortens the impact time of seal failure and thus extends the effective pouring time of the submersible nozzle. During the pouring process, inert gas is blown out through the air seal holes, which can quickly remove accumulated ash and steel slag, reducing the labor intensity of manual cleaning. Pressing down the handle can open the ring hollow tube, which is convenient for replacing the nozzle.

To provide a method of crushing and removing a deteriorated layer of a refractory layer of an inner surface of a vessel in a short time.SOLUTION: A crushing method of a refractory layer in which at least part of the refractory layer is crushed by a crushing tool when repairing a vessel having the refractory layer on an inner surface thereof includes: a first crushing step of crushing at least part of the refractory layer while moving, in a first direction of an inner surface of the vessel, the crushing tool along a first route set at intervals not overlapping therein so that regions to be crushed by the crushing tool are not overlapped; and a second crushing step of crushing at least part of the refractory layer while moving, in a second direction crossing the first direction of the inner surface of the vessel, the crushing tool along a second route set at intervals not overlapping therein so that the regions to be crushed by the crushing tool are not overlapped.SELECTED DRAWING: Figure 3