60results about How to "Cool evenly" patented technology

The invention provides an automobile balance block die-casting mould, which comprises a push cylinder, an upper mould base, an upper mould, a lower mould and a lower mould base, wherein the upper mould is arranged on the lower end of the upper mould base; the lower mould is arranged on the upper end of the lower mould base; the upper mould base is connected to the upper end of the lower mould base through a guide pillar; cooling holes are formed in the upper end face and the lower end face of the upper mould base in a penetrating way; a guide sleeve is connected onto each cooling hole. According to the automobile balance block die-casting mould, each cooling channel is communicated with a blind hole, each blind hole is communicated with a cooling hole, and each guide sleeve is arranged on the corresponding cooling hole, so that the mould can be cooled conveniently and quickly through injecting cooling water in the guide sleeves; the cooling channels are arranged at equal distances and in parallel, so that cooling is uniform, the cooling effect can be further improved, and the product quality is improved; the automobile balance block die-casting mould is simple in structure, convenient to operate, and good in cooling effect.

The application relates to the technical field of zirconium-niobium alloy material processing, in particular to a preparation method of a large-diameter zirconium-niobium alloy pipe for nuclear industry, which comprises the following steps: S1, mixing nuclear-grade sponge zirconium and niobium scraps, or mixing zirconium-niobium alloy, zirconium dioxide and iron; melting the mixture and preparing a zirconium-niobium alloy ingot; S2, sequentially performing large deformation forging in a beta single-phase zone and an alpha+beta two-phase zone; S3, drilling a central hole in the axial direction of a round-forging blank; quenching in the beta single-phase zone; S4, coating an anti-galling agent on the surface of the central hole and heating to prepare a pipe blank in the mode of cross piercing; S5, performing periodic forging and rolling on the pipe blank; S6, annealing the hot-rolled pipe twice; and straightening the hot-rolled pipe after the second-stage annealing. The zirconium-niobium alloy pipe has uniform microstructure, good mechanical properties and corrosion resistance, the production direction of the brittle hydride is nearly parallel to the circumferential direction of the pipe, and brittle damage of the pipe wall thickness caused by the crack propagation of the hydride is avoided.

The application discloses a water-cooled motor sleeve and a motor, and relates to the technical field of motors. The water-cooled motor sleeve comprises an inner shell, an outer sleeve, a blocking strip, a stop rib and two sealing rings. The outer sleeve is sleeved on the outer shell, and is arranged at intervals from the inner shell. The two sealing rings are oppositely arranged, and are connected between the outer sleeve and the inner shell. The outer sleeve, the inner shell and the two sealing rings jointly enclose a water-cooled cavity. The stop rib is connected between the two sealing rings, and is connected between the outer sleeve and the inner shell. The blocking strip is connected between the outer sleeve and the inner shell, and is connected with the stop rib, so as to divide the water-cooled cavity into two water flow channels arranged outside the inner shell. The water flow channels comprise water inlet channels and water outlet channels. The length of the water inlet channels is equal to the length of the water outlet channels. The cross-sectional area of the water inlet channels is greater than the cross-sectional area of the water outlet channels. The water-cooled motor sleeve can ensure uniform cooling around the motor body, so as to ensure the performance of the motor body, has good cooling effect and high safety.

This invention relates to the field of casting technology, and more particularly to a high-strength drive wheel casting process. The steps include: Step 1, alloy material preparation; Step 2, melting and micro-alloying treatment; Step 3, mold preparation and pouring; Step 4, solidification and cooling staged control; and Step 5, heat treatment process. By optimizing the alloy composition, improving the mold structure, precisely controlling melting and pouring, and adapting the heat treatment process, this invention solves the technical problems of insufficient strength, high defect rate, and poor forming accuracy in existing drive wheels. The invention also improves the structure and adapts the cooling chamber to the process, combining a controlled atmosphere cooling chamber with a staged cooling process. It incorporates partition isolation components, waste heat recovery components, and a temperature control unit, achieving independent partitioned cooling of the casting, precise temperature control, and waste heat reuse. This solves the problems of "airflow interference, uneven cooling, and energy waste" in existing cooling chambers.

The utility model discloses a kind of feed additive granule cooling equipment, including bearing base and cooling roller, the top end both sides of bearing base are vertically installed with support seat, the opposite side wall of two support seat is installed with carousel;The side wall of one side carousel is installed with fixed disc a, the side wall of the other side carousel is installed with fixed disc b, the cooling roller is assembled between fixed disc a and fixed disc b;The setting of this feed additive granule cooling equipment, structure design is reasonable;By setting cooling fin on the inner wall of cooling roller upper and lower two sides, and setting ventilation hole and assembling fan assembly outside drum, good ventilation and heat dissipation structure is formed.Fan assembly forced ventilation, cooperate cooling fin to increase heat dissipation area, so that feed additive granule can be in contact with cold air in the process of drum rotation, greatly improve cooling efficiency.

The utility model relates to the field of steel sheet manufacturing, especially a hot-rolled steel sheet stack cooling device, including the stack cooling bucket, a plurality of support plates are fixed equidistance in the stack cooling bucket, a plurality of support plates are close to steel sheet one side all slidingly connected with two limit rods, the limit rod is far away from steel sheet one side and is fixedly connected with the adjusting spring between the support plate, a plurality of support plates are circular ring shape distribution in the stack cooling bucket. Through the two limit rods of circular ring shape distribution a plurality of support plates to the steel sheet are clamped and are defined, so that a plurality of steel sheets are connected head to tail in the annular array mode, avoid because the vertical type layering mode leads to the cooling speed of the steel sheet of the most top layer and the most bottom layer and the middle position is different, through two adjusting springs realize the position definition of the limit rod to the steel sheet of different thickness, through the fan imports the external air and then diffuses with the air pipe as the center radially, promotes the flow of the heat in the stack cooling bucket, realizes uniform cooling, improves the stack cooling effect and the steel sheet quality.

This utility model relates to a material cooling hopper for cooling high-temperature fertilizers. It includes a discharge port, a channel, and a feed port. The discharge port and feed port are fixedly connected to both ends of the channel, with the feed port located above the channel. The channel is inclined, and a lifting plate is rotatably connected to the inner wall of the channel. The lifting plate contacts the high-temperature fertilizer. Multiple nozzles are installed at the top of the inner cavity of the channel. This utility model uses nozzles inside the channel for air cooling of the fertilizer. The inclined channel extends the contact time between the fertilizer and the cooling gas, allowing for direct cooling. A traction component drives the lifting plate to rotate reciprocally inside the channel, lifting a portion of the fertilizer and ensuring sufficient contact between the fertilizer and the cooling gas, thereby achieving uniform cooling of the fertilizer.

This invention relates to the field of electrofusion pipe fitting processing equipment technology, and discloses a device for improving the warping of large-diameter electrofusion pipe fittings. The device includes a furnace body with two sets of parallel annular conveyor belts inside. Both conveyor belts are connected to a conveying drive mechanism. Multiple pipe fixing mechanisms for fixing the electrofusion pipe fittings to be processed are evenly spaced on the two conveyor belts. A pipe feeding mechanism is provided at the starting end of the conveying of the two conveyor belts, and a pipe unloading mechanism is provided at the end of the conveying of the two conveyor belts. Both the pipe feeding and unloading mechanisms are located outside the furnace body. The portions of the two conveyor belts inside the furnace body are connected to a rotary temperature control mechanism inside the furnace body for graded temperature control of the electrofusion pipe fittings during rotation. This allows for sequential and uniform cooling of each part of the electrofusion pipe fitting, resulting in better cooling and higher quality after annealing, effectively improving the warping problem of large-diameter electrofusion pipe fittings.

The utility model belongs to the cooling conveyor field, concretely relates to a cooling conveyor for food processing, including the bottom plate, the upper end fixedly connected with two symmetrical distribution supports of bottom plate, the inboard rotationally connected with drive roll of one support, the front end fixed mounting of support has drive motor, the output with support rotationally connected of drive motor, the output with drive roll fixed connection of drive motor. The utility model discloses the effect of the design of conveyer belt can transport material, when material is transported to the inside of fixed base, the air outlet can blow out the cold wind and cool the conveying material, in the process of blowing cooling, the rotary motor works simultaneously, and the rotary motor driving gear rotates can realize the rotation of gear ring and rotary ring, and further can realize the rotary blowing of air outlet, can carry out the dead angle blowing cooling of material, can promote the blowing range and make the material cooling uniform.

The utility model discloses a stainless steel casting forming technical field's a kind of stainless steel casting forming equipment with quick cooling function, including casting mould, the bottom of casting mould is provided with cooling support assembly, cooling support assembly includes heat insulation pedestal, the bottom of one side of heat insulation pedestal is provided with circulating conveying component, circulating conveying component includes input pump box, circulating conveying component is installed in the bottom of one side of heat insulation pedestal, the scheme is arranged cooling support assembly, wherein the quick cooling cavity in heat insulation pedestal is arranged circulating cooling pipeline, and is matched with input pump box and output pump box to form circulating conveying system, can be outside ultra-low temperature cooling medium high-efficiency circulating conveying to pipeline inside, by the contact cooperation structure of metal heat conduction plate and metal heat conduction strip, and the recessed groove design of the matching of casting mould bottom four around and metal heat conduction strip, can be ultra-low temperature evenly conducted to casting mould, optimizes casting cooling process.

The utility model provides a rapeseed oil processing cooling device, including base and oil storage drum, the top of base is connected with oil storage drum rotation through the adapter seat, oil storage drum is relatively vertical plane and sets up obliquely, the middle part of oil storage drum is provided with the coaxial inner heat dissipation cylinder who penetrates, the top of adapter seat is fixedly connected with the first heat dissipation fan who is located the inner heat dissipation cylinder top through the support, in the utility model, set up an inner heat dissipation cylinder in the oil storage drum, set up an outer heat dissipation cylinder in the outside gap of oil storage drum, one end of inner heat dissipation cylinder installs the first fan, and the outer circumferential wall of outer heat dissipation cylinder installs the second heat dissipation fan through the locating cylinder, after the first fan starts, the heat of rapeseed that inner heat dissipation cylinder absorbs can be accelerated to discharge, after the second heat dissipation fan starts, the heat of rapeseed oil that the outer circumferential wall of oil storage cylinder absorbs can be accelerated to discharge, and this kind of inner and outer ventilation heat dissipation mode has improved the efficiency of rapeseed oil heat dissipation greatly.

The utility model provides a kind of push pipe mould convenient to inner die stripping, it is related to push pipe mould technical field, including lower mould plate, inner stripping structure and upper mould plate, the upper portion of lower mould plate is provided with lower cushion block, and the upper portion of lower cushion block is provided with lower heat insulation plate, lower cushion block and lower heat insulation plate are equipped with inner stripping structure, and the upper portion of lower heat insulation plate is provided with first lower female die, the lower portion of upper mould plate is provided with upper cushion block, the lower portion of upper heat insulation plate is provided with upper heating plate, and the lower end surface middle portion of upper heating plate is provided with inner extrusion block, and the periphery of inner extrusion block is provided with male die, and push pipe is injection molded between first lower female die, inner extrusion block and male die.The utility model mould product production positioning is stable and accurate, pouring is fast and uniform, and it is convenient and fast to help mould product cooling forming, when stripping, mould product inner and outer surface can be cleanly removed adherend, burr, stripping is more fast and convenient and guarantees stripping quality, more efficient and practical.

The utility model discloses a kind of blown film machines for film production, it is related to blown film machine technical field, including blown film mechanism, flattening mechanism, winding mechanism and cooling mechanism;Blown film mechanism includes material cylinder, and material cylinder is provided with hopper and die head;Flattening mechanism includes frame, and frame is provided with herringbone and the flattening roller group located in herringbone upper end;Winding mechanism includes machine table, and machine table is provided with winding roller group;Cooling mechanism includes air supply source and the cooling air ring being set in die head upper end, air supply source is connected with cooling air ring by pipeline, and the inner ring wall of cooling air ring is provided with multiple air outlets, and each air outlet central axis is inclined to be set relative to horizontal plane to oblique upper side;Air outlet central axis is inclined to be set relative to horizontal plane to oblique upper side, so that cooling airflow and bubble contact form angle, airflow continues to flow upwards after contacting bubble, improve the time and area of airflow and bubble contact, enhance the cooling effect to bubble.

This utility model discloses a plastic pipe clamp injection mold, belonging to the field of injection mold technology, including a static injection mold: a static mold panel, a static mold base plate, and a static mold plate; and a moving injection mold: a moving mold base plate, a moving mold foot, a moving mold base plate, a moving mold plate, a bottom pin plate, a top pin plate, a demolding ejector pin, and a demolding ejector block. This utility model, through the mirror-symmetrical static and moving mold plates, can injection mold multiple plastic pipe clamps at once, significantly improving production efficiency and meeting the needs of mass production. Smooth demolding effectively avoids product damage during demolding, improving product qualification rate. The circulating water channel design within the static and moving mold plates ensures uniform heat dissipation during the cooling process of the injection molded parts, reducing the generation of internal stress and improving the mechanical properties and service life of the products. This utility model has advantages such as high-efficiency production, convenient demolding, uniform cooling, and high mold closing accuracy, which can significantly improve the production efficiency and quality of plastic pipe clamps and has broad application prospects.

This utility model discloses an injection mold for battery plastic parts, belonging to the field of injection molds. The injection mold for battery plastic parts includes a moving mold and a fixed mold. The fixed mold is mounted on a fixed mold base plate, and the moving mold is mounted on a support plate. The support plate is connected to the moving mold base plate via a partition block. A punch is mounted on the moving mold, and a die is mounted on the fixed mold. A cooling box is provided on the outer side of the die, installed in a slot on the fixed mold. Both ends of the cooling box are connected to water inlet pipes via first distribution boxes, and the top and bottom of the cooling box are connected to drain pipes via second distribution boxes. Multiple cooling water pipes are evenly installed on the outer side of the cooling box. This utility model, through the annular cooling box mounted on the fixed mold and the second guide rod on the moving mold, enables rapid cooling after mold closing. Furthermore, the cooling box increases the cooling range, accelerates the cooling efficiency of the mold, and ensures more uniform cooling.

The application discloses a cooling device for potato processing and belongs to the technical field of food processing, which comprises a groove body, liquid inlet pipes and liquid outlet pipes arranged on the groove body, a conveying assembly arranged in the groove body, a receiving groove, a cleaning assembly, a filtering assembly and a water control assembly, the receiving groove is arranged in the groove body, a filter screen is arranged in the receiving groove, and a discharge port is arranged on the receiving groove; the cleaning assembly is communicated with the groove body, the receiving groove is communicated with the groove body, and the water control assembly is arranged above the conveying assembly. The potato raw materials in the receiving groove can be washed and the impurities such as chippings, skins and starches adhered to the surfaces of the potato raw materials can be removed through the cleaning assembly, so that the potato raw materials can be uniformly cooled without adhering impurities on the surfaces, the surface cleanliness of the potato raw materials after the cooling treatment is improved, the hardness of the potato raw materials after frying or baking processes is uniform, the edible taste of the finished products is ensured, and the pollution speed of the cooling water in the groove body is slowed down.

The application discloses a reaction kettle cooling device, relates to the technical field of reaction kettle cooling, and improves the problem that if impurities or dirt are carried in water after cooling, the pollutants can enter the inside of a kettle body in the next cycle, pipeline blockage, heat transfer efficiency reduction, kettle body internal pollution and other problems are caused, and the stable operation of the reaction kettle and product purity are affected, and the reaction kettle body is provided with a treatment mechanism including a box body and a discharge pipe, the other side surface of the box body is fixedly installed with an output pipe penetrating the other side inner wall, one side of the output pipe is fixedly installed with a first liquid pump penetrating the one side inner wall, the first liquid pump is driven to drive the circulating cooling water to flow, under the continuous action, the water flows into the box body in an orderly manner through the discharge pipe, impurities and dirt are effectively intercepted through the filter plate, and the pollutants can be prevented from entering the inside of the kettle body in the next spraying cycle, so that adverse effects are avoided.

The utility model relates to the technical field of SCR catalyst production equipment discloses a net belt kiln cooling structure for SCR catalyst, including the conveyer belt, the conveyer belt side fixedly connected with the net belt kiln, the inner wall of net belt kiln is provided with cooling assembly, the cooling assembly includes a plurality of cooling pipes, a plurality of cooling pipes are located in the inner wall of net belt kiln, the inner wall top of net belt kiln is provided with hard aluminium silicate fibre board, a plurality of cooling pipes both ends are through hard aluminium silicate fibre board and extend to the top of net belt kiln, the top of net belt kiln is provided with connecting pipe no. One, air inlet pipe and air outlet pipe, the both sides of connecting pipe no. One top are fixedly connected with the communication piece no. One and the communication piece no. Two respectively. In the utility model, through setting cooling assembly in the top of net belt kiln, and installing hard aluminium silicate fibre board in the top of kiln inner wall, the effect that the catalyst is indirectly cooled steadily and uniformly is reached, and the reliability and stability of kiln cooling process are enhanced.

This utility model discloses a cooling and temperature-reducing device for yogurt processing, comprising a box body, an internal cooling device, a fixedly connected stirring chamber, an internal stirring device, a fixedly connected condenser, an internal feed cylinder, and a fixedly connected discharge cylinder. A fixedly connected fixing box further comprises a motor, and the motor's output end is fixedly connected to a drive bevel gear. This structure, by incorporating the stirring and cooling devices, utilizes the stirring of the yogurt to achieve uniform cooling, preventing localized overheating or underheating, accelerating the cooling rate while ensuring more uniform cooling, thus improving the consistency of yogurt quality.

The application discloses a heat preservation treatment method for diamond blades after high-temperature sintering, which comprises the following steps: placing the sintered diamond blades into a heat preservation cavity and supporting the blades in the heat preservation cavity in a rotatable manner around the axis of the blades; introducing inert protective gas into the heat preservation cavity and driving the blades to rotate slowly around the axis of the blades by the gas flow; and adjusting the flow rate of the inert protective gas according to the temperature change in the heat preservation cavity to realize dynamic heat preservation treatment. The application drives the rotation of the blades by the gas flow, and does not need mechanical transmission mechanism, thereby improving the reliability of the equipment under high-temperature working conditions. Meanwhile, the cooling intensity is adaptively adjusted in sections according to the material characteristics of the blades in different temperature intervals, so that the cooling rate is controlled within a reasonable range, the generation of thermal stress and phase change stress is effectively inhibited, and the yield and use performance of the diamond blades are significantly improved.

The utility model discloses a quick cooling device in wire drawing annealing furnace, include: box, be surrounded with first sealing ring on the inner wall of box, be provided with cavity and cooling tank in the box, be provided with water inlet hole with the intercommunication of cavity on the box, be provided with the water outlet that communicates cavity and cooling tank on the partition between cavity and cooling tank, be provided with guide pulley in the sealed rotation of cooling tank, be provided with incoming line groove and outgoing line groove on the box, be hinged with the apron on the left side wall of box, be provided with the arc buffer zone of convex setting on the inboard wall of apron, be provided with a plurality of buffer groove in the circumference on the arc buffer zone, be provided with the backwater mouth on the apron in the arc buffer zone, be provided with the U type water seal groove that communicates with backwater mouth on the outboard wall of apron. The utility model has the advantages of: can improve the cooling effect of wire rod.

A large steel wire raceway bearing heat treatment method relates to the technical field of bearing heat treatment, and comprises the following steps: S1, the inner ring, the outer ring, two rows of steel balls and two steel wire raceways are assembled into a bearing assembly, and the bearing assembly is fixed on a rolling device; wherein the two steel wire raceways are clamped and fixed on the inner ring and the outer ring of the bearing assembly in a non-welding manner, each steel wire raceway is made of a steel wire bent into a ring, and a reserved gap is reserved between the two ends of the steel wire; S2, at least two groups of electromagnetic induction heaters are uniformly arranged on the outer side of the circumference of the bearing assembly. The heat treatment method realizes stress release and heat compensation by designing a special steel wire raceway structure, solves the problems of uneven heating of multi-material assembly, insufficient gap cooling, easy deformation and cracking, and stress concentration of integrated quenching, realizes overall quenching after assembly, eliminates soft belt from the source, and significantly improves hardness uniformity, quenching layer consistency, assembly precision and service life.

This utility model relates to the field of bio-organic fertilizer production technology. Specifically, it is a cooling device for bio-organic fertilizer production, including a protective shell. A feed hopper is fixedly connected to the outer side of the protective shell, and a telescopic cylinder is fixedly connected to the bottom of the feed hopper. A baffle is fixedly connected to the bottom end of the telescopic cylinder, and a discharge hopper is slidably connected to the outer wall of the baffle. This device is equipped with heat dissipation fins. When airflow passes rapidly through the air guide pipe, the air guide pipe is under negative pressure. At the same time, the heat absorbed by the heat dissipation fins heats the surrounding air, forming hot air. This hot air is drawn into the air guide pipe under the action of negative pressure. Finally, the mixed gas carrying heat is discharged from the device through the heat dissipation cover. The horn cover is shaped to expand outwards. Under the action of negative pressure in the air guide pipe, it can gather and guide hot air from a larger area around the air inlet to the air inlet, facilitating the discharge of heat from the heat dissipation fins.

The utility model relates to refractory brick support technical field, and disclose a kind of support for cooling after refractory brick sintering, including bottom plate, the upper surface four corners of bottom plate are evenly fixedly installed with support column, the outer wall surface of four support columns is equipped with sleeve, two adjacent sleeve one side is fixedly connected with slot plate.The support for cooling after refractory brick sintering, by the cooperation setting of support column, sleeve, slot plate, insert strip, grid support plate, fixing frame, slide plate, insert block, pull rod and high-temperature resistant spring, when using, the insert strip of grid support plate both ends is inserted into slot plate, at this time, insert block will be inserted into slot and fixed, and then the spacing between upper and lower grid support plate is adjusted according to the height of refractory brick, and then a layer of refractory brick is laid on grid support plate, then the support is pushed into the furnace for sintering when sintering, then when sintering is completed, ensure that the brick can be uniformly cooled, so as to effectively ensure the production quality of refractory brick.

The application relates to a fertilizer particle cooling device for fertilizer production, which comprises a conveyor for conveying the granular fertilizer, a feeding hopper for feeding on both ends of the conveyor, and a guide frame for discharging on both ends of the conveyor, a discharge port for discharging is formed in the feeding hopper, an adjusting unit is slidably arranged on the discharge port, a cooling bin is arranged on the conveyor, and a cooling unit is arranged on the cooling bin; two material distribution mechanisms are oppositely arranged in the cooling bin, the material distribution mechanism comprises a fixed plate arranged above the inner wall of the cooling bin, the size of the discharge port can be flexibly adjusted through the adjusting unit, so that the flow of the fertilizer particles falling from the feeding hopper to the conveyor is kept balanced, the fertilizer particles can be dispersed through the material distribution mechanism, gaps are formed among the fertilizer particles, the contact area of the fertilizer particles and the cooling gas is increased, and the cooling effect is improved.

The utility model belongs to reactor technical field, specifically is a kind of cold gas device for hydrogenation reactor, including reactor body;The reactor body top is fixed with feed pipe;The reactor body bottom is fixed with discharge pipe;The reactor body outer lateral wall is equipped with cold gas subassembly;The cold gas subassembly end is equipped with dismounting subassembly;The discharge pipe outer lateral wall is equipped with control component;The cold gas subassembly includes two cold gas covers;Two the cold gas covers are oppositely arranged;Two the cold gas covers are installed in reactor body outer lateral wall;Two the cold gas cover lateral wall is equipped with sealing component;The cold gas cover bottom is equipped with air inlet pipe;Through the above structure, the flow path of spiral is formed in cold gas cover by guiding cold gas, and this flow mode can increase the contact area and contact time of cold gas and reactor body outer lateral wall, to improve heat exchange efficiency, can make cold gas fully flow in limited space, make cooling more uniform.

This invention discloses an electrode lifting device for reducing arc-starting waste accumulation in a melting machine. It includes an electrode lifting mechanism comprising a frame, a longitudinal guide rail mounted on the frame, and an electrode lifting frame slidably connected to the longitudinal guide rail. It also includes an exhaust lifting mechanism, a cold water plate lifting mechanism, an electrode counterweight mechanism, an air blowing sleeve, and an intermediate heat-insulating cold water plate. The exhaust lifting mechanism includes an exhaust lifting frame with an exhaust pipe installed on it. The cold water plate lifting mechanism includes a cold water plate lifting frame with cold water plate units installed on it. The air blowing sleeve is detachably mounted on the cold water plate lifting frame. The intermediate heat-insulating cold water plate is detachably mounted on the frame, separating the electrode sleeve from the longitudinal guide rail. The electrode lifting frame, exhaust lifting frame, and cold water plate lifting frame are arranged from top to bottom along the longitudinal guide rail. This invention integrates multi-unit coordinated lifting, counterweight balance drive, graded thermal insulation, and cooling and purging.

This invention relates to a surface-supported cooling device for the initial stage of the secondary cooling zone in ultra-high-speed continuous casting of small billets. It includes a crystallizer copper plate, a cooling water jacket, and a secondary cooling zone located below it. An initial secondary cooling zone, serving as a connecting section, is provided between the crystallizer copper plate and the secondary cooling zone. The initial secondary cooling zone includes a cooling grid surrounding the billet, forming a surface-supported relationship with the billet surface. Multiple through holes are provided on the grid for the cooling medium to pass through. The cooling grid is fixedly connected to an external support structure via outwardly extending ribs. Guide plates are also provided on the ribs, arranged at an angle to the billet casting direction to guide the cooling water sprayed onto the billet surface for directional flow and discharge. In the area between adjacent guide plates, nozzles are arranged facing the billet surface for spraying cooling medium onto the billet.