Continuous casting machine capable of improving yield

Abstract

The utility model relates to the field of steel production equipment, in particular to a continuous casting machine capable of improving yield, which comprises a crystallization system, the crystallization system comprises a crystallization box, a crystallization pipeline, a vibration component and a cooling component, the vibration component comprises a bottom frame, a buffer spring, a driving motor, a crankshaft, a connecting rod and an ejector rod, and the buffer spring is fixedly mounted on the side of the bottom frame. The bottom of the crystallization box is fixedly connected with the buffer spring, a liquid inlet is formed in the top of the crystallization box, a liquid outlet is formed in one side of the crystallization box, the crystallization pipeline and the cooling assembly are arranged in the crystallization box, and through the U-shaped structure and installation of the cooling ring, it is ensured that cooling water is evenly sprayed to all parts of the crystallization pipeline, especially the top of the crystallization pipeline; the cooling effect is improved, the crystallization defect is reduced, the crystallization box vibrates through the reciprocating motion of the vibration assembly, the tempering solution uniformly flows in the crystallization pipeline, and the crystallization efficiency of the tempering solution is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel production equipment, and specifically to a continuous casting machine capable of improving yield. BACKGROUND

[0002] Continuous casting is an indispensable and important link in modern steel industry, which directly and continuously casts high-temperature molten steel into billets with a certain cross-sectional shape. The development of this technology greatly improves the efficiency of steel production, shortens the time from steelmaking to rolling, reduces energy consumption, and reduces metal loss. However, despite the many advantages brought by continuous casting technology, it still faces some challenges in practical application, especially in terms of yield.

[0003] In the production process of traditional continuous casting machines, the yield is often not high due to the following reasons:

[0004] Poor solidification of molten steel:

[0005] If the cooling speed of molten steel is too fast or too slow, it will lead to poor solidification, forming internal cracks or center porosity and other defects.

[0006] Cracks:

[0007] During the continuous casting process, if the cooling is uneven or stress is concentrated, cracks are easily produced, especially corner cracks, which seriously affect the quality of finished products. SUMMARY

[0008] In view of the deficiencies of the prior art, the utility model provides a continuous casting machine capable of improving yield.

[0009] To achieve the above object, the utility model provides the following technical scheme: a continuous casting machine capable of improving yield, including crystallization system, the crystallization system includes crystallization tank, crystallization pipeline, vibration subassembly and cooling assembly, the vibration subassembly includes the bottom frame, buffer spring, drive motor, crank shaft, connecting rod and top rod, the buffer spring is fixedly installed in the side of bottom frame, the bottom of crystallization tank is fixedly connected with buffer spring, the top of crystallization tank is equipped with inlet, one side of crystallization tank is equipped with outlet, the crystallization pipeline and cooling assembly are arranged in crystallization tank, and the both ends of crystallization pipeline are communicated with inlet and outlet respectively, the cooling assembly includes cooling pump, cooling ring and cooling nozzle, the cooling ring is sleeved in the outside of crystallization pipeline, the cooling nozzle is arranged on the cooling ring, the cooling pump is installed on the bottom frame, the cooling ring is communicated with cooling pump through liquid guide pipe, the bottom of crystallization tank is equipped with opening, the liquid guide pipe is led out from crystallization tank from the opening, the drive motor is fixedly installed in one end of bottom frame, the other end of bottom frame is equipped with bearing frame, one end of crank shaft is adapted with the output end of drive motor through coupling, the other end of crank shaft is rotatably connected with bearing frame through bearing, a plurality of eccentric cranks are equipped on the crank shaft, eccentric shaft is hinged on the eccentric crank, through hole is penetrated in eccentric shaft, a plurality of top rods are fixedly installed on the bottom of crystallization tank, the bottom of connecting rod is inserted into the through hole of eccentric crank, and the bottom of connecting rod is installed with limiting nut through screw structure, and the top of connecting rod is hinged with top rod.

[0010] Preferably, the crystallization pipeline is arranged obliquely in the crystallization tank.

[0011] Further preferably, the cooling ring adopts a U-shaped structure, the cooling ring is provided with a plurality of connecting pipes, the inner wall of the crystallization tank is provided with a plurality of mounting holes along the arrangement route of the crystallization pipeline, the connecting pipes are inserted into the mounting holes, and the end portions of the connecting pipes are installed with limiting nuts through screw structures.

[0012] More preferably, the connecting pipes are provided with through holes, and the liquid guide pipes are connected in series on the through holes of the connecting pipes.

[0013] Preferably, the utility model further comprises a collecting tank, the collecting tank is arranged at the bottom of the bottom frame, one end of the collecting tank is provided with a drain pipe, and the drain pipe is provided with a valve.

[0014] Further preferably, the nozzles are arranged at the bottom and both sides of the cooling ring, both sides of the cooling ring are provided with two nozzles, and the nozzle at the top end of the cooling ring is directed to the inner top end of the cooling ring.

[0015] Compared with the prior art, the utility model provides a continuous casting machine capable of improving yield, which has the following beneficial effects:

[0016] Improve crystallization efficiency:

[0017] By the inclined arrangement of the crystallization pipe and the optimized nozzle arrangement, the residence time of the tempering solution is increased, which is conducive to the uniform performance of the crystallization process and improves the crystallization efficiency.

[0018] Reduce crystallization defects:

[0019] By the U-shaped structure and installation of the cooling ring, uniform spraying of cooling water on each part of the crystallization pipe, especially the top of the crystallization pipe, is ensured, which helps to improve the cooling effect and reduce crystallization defects.

[0020] By the reciprocating motion of the vibration assembly, the crystallization tank is vibrated, which makes the tempering solution flow uniformly in the crystallization pipe and promotes the crystallization efficiency of the tempering solution.

[0021] Improve product quality:

[0022] The inclined arrangement can reduce the local deposition phenomenon caused by gravity and improve the product quality.

[0023] Prolong the service life of the equipment:

[0024] By the design of the buffer spring, the impact on the equipment during vibration is reduced, and the service life of the equipment is prolonged.

[0025] Convenient maintenance and management:

[0026] By setting the collection box, the cooling water can be conveniently recycled and treated, resource waste is reduced, and maintenance and management are facilitated.

[0027] Improve cooling efficiency:

[0028] The design of the U-shaped cooling ring increases the cooling area and improves the cooling efficiency, ensuring the consistency of the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a top view structure schematic diagram of the utility model;

[0030] Figure 2 It is a bottom view structure schematic diagram of the utility model;

[0031] Figure 3 It is a crystallization tank cross-section structure schematic diagram of the utility model;

[0032] Figure 4 It is a cooling ring structure schematic diagram of the utility model;

[0033] Figure 5 It is a collection box structure schematic diagram of the utility model;

[0034] In the figure: 1, crystallization tank; 2, base frame; 3, liquid inlet; 4, liquid outlet; 5, crystallization pipeline; 6, cooling ring; 7, liquid guide pipe; 8, driving motor; 9, cooling pump; 10, opening; 11, crank shaft; 12, eccentric crank; 13, eccentric shaft; 14, connecting rod; 15, ejector rod; 16, bearing frame; 17, buffer spring; 18, collection tank; 19, connecting pipe; 20, through hole; 21, nozzle; 22, drain pipe; 23, valve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0036] Please refer to Figure 1-5 The core of the continuous casting machine capable of improving yield of the utility model lies in the improvement of the crystallization system. By optimizing the design of the crystallization tank 1, the crystallization pipeline 5, the vibration assembly and the cooling assembly, the more efficient crystallization process is realized, so that the yield is improved. The following are the main components of the crystallization system and the working principles thereof:

[0037] Crystallization system composition

[0038] Crystallization tank 1:

[0039] The crystallization tank 1 is the core container of the whole system, which is used for containing the molten steel solution to be crystallized.

[0040] The top of the crystallization tank 1 is provided with a liquid inlet 3 for injecting the molten steel solution to be crystallized.

[0041] One side of the crystallization tank 1 is provided with a liquid outlet 4 for discharging the molten steel solution which has been crystallized or partially crystallized.

[0042] The bottom of the crystallization tank 1 is provided with an opening 10 for the liquid guide pipe 7 to pass through.

[0043] Crystallization pipeline 5:

[0044] The crystallization pipeline 5 is arranged in the crystallization tank 1, and the two ends thereof are respectively connected with the liquid inlet 3 and the liquid outlet 4.

[0045] The crystallization pipeline 5 is used for guiding the flow of the molten steel solution in the crystallization tank 1, and promoting the crystallization process.

[0046] Vibration assembly:

[0047] The vibration assembly includes a base frame 2, a buffer spring 17, a drive motor 8, a crank shaft 11, a connecting rod 14 and a top rod 15.

[0048] The base frame 2 is used to support the whole vibration assembly.

[0049] The buffer spring 17 is fixedly installed on the side of the base frame 2, and the bottom of the crystallization tank 1 is fixedly connected with the buffer spring 17, which is used for shock absorption.

[0050] The drive motor 8 is fixedly installed on one end of the base frame 2, and provides vibration power.

[0051] The crank shaft 11 is rotatably connected with the bearing frame 16 through a bearing on the other end.

[0052] The eccentric crank 12 is arranged on the crank shaft 11, and the eccentric shaft 13 is hinged on the eccentric crank 12, and the eccentric shaft 13 has a through hole.

[0053] The connecting rod 14 is inserted into the through hole of the eccentric crank 12 and fixed by a limiting nut at the bottom, and is hinged with the top rod 15 at the top.

[0054] The top rod 15 is fixedly installed on the bottom of the crystallization tank 1, and is connected with the eccentric crank 12 through the connecting rod 14 to realize vibration transmission.

[0055] The cooling assembly includes a cooling pump 9, a cooling ring and a cooling nozzle 21.

[0056] The cooling assembly includes a cooling pump 9, a cooling ring and a cooling nozzle 21.

[0057] The cooling ring is sleeved on the outside of the crystallization pipeline 5, and is used to cool the liquid material in the crystallization pipeline 5.

[0058] The cooling nozzle 21 is arranged on the cooling ring and is used to spray cooling water.

[0059] The cooling pump 9 is installed on the base frame 2 and communicates with the cooling ring through a liquid guide pipe 7, and provides power for cooling water supply.

[0060] Working principle

[0061] The molten steel solution in the crystallization tank 1 is injected:

[0062] The molten steel solution enters the crystallization pipeline 5 in the crystallization tank 1 through the liquid inlet 3.

[0063] The vibration effect of the vibration assembly:

[0064] The drive motor 8 drives the rotation of the crank shaft 11, and the eccentric crank 12 on the crank shaft 11 converts the rotary motion into reciprocating linear motion of the top rod 15 through the eccentric shaft 13 and the connecting rod 14.

[0065] The reciprocating motion of the top rod 15 is transmitted to the crystallization tank 1 through the connecting rod 14, causing the crystallization tank 1 to vibrate, making the tempered solution flow uniformly in the crystallization pipe 5, and promoting the crystallization efficiency of the tempered solution.

[0066] The buffer spring 17 absorbs the impact force generated during the vibration process, reducing system loss.

[0067] The cooling effect of the cooling assembly:

[0068] After the cooling pump 9 is started, the cooling water is delivered to the cooling ring through the liquid guide pipe 7.

[0069] The cooling water in the cooling ring is sprayed to the outside of the crystallization pipe 5 through the cooling nozzle 21, taking away heat and promoting the rapid crystallization of the molten steel solution in the crystallization pipe 5.

[0070] The cooled water is delivered.

[0071] The discharge of the tempered solution after crystallization:

[0072] After the cooling and vibration effects, the crystallized tempered solution is discharged from the crystallization pipe 5 through the liquid outlet 4.

[0073] Working principle of each preferred technical solution

[0074] The crystallization pipe 5 is arranged obliquely:

[0075] Working principle: The crystallization pipe 5 is arranged obliquely in the crystallization tank 1, rather than vertically or horizontally.

[0076] Advantages: The oblique arrangement can increase the residence time of the liquid material in the crystallization pipe 5, which is beneficial to the uniform progress of the crystallization process, and at the same time, reduces the local deposition phenomenon caused by gravity, improving the quality of the finished product.

[0077] The cooling ring 6 adopts a U-shaped structure:

[0078] Working principle: The cooling ring 6 adopts a U-shaped structure design, and is provided with a plurality of U-shaped cooling rings 6, and the bottom end of each U-shaped cooling ring 6 is provided with a connecting pipe 19.

[0079] Installation method: The inner wall of the crystallization tank 1 is provided with a plurality of mounting holes along the arrangement route of the crystallization pipe 5, the connecting pipe 19 is inserted into the mounting hole, and a limiting nut is installed through a threaded structure.

[0080] Advantages: The U-shaped structure can better wrap the crystallization pipe 5, increase the cooling area, and improve the cooling efficiency; at the same time, the connecting pipe 19 is fixed through the mounting hole, ensuring the stable installation of the cooling ring 6 and not easy to displace.

[0081] The through hole 20 on the connecting pipe 19 is connected in series with the liquid guide pipe 7:

[0082] Working principle: The connecting pipe 19 is provided with a through hole 20, and the liquid guide pipe 7 is connected in series on the through hole 20 of the connecting pipe 19 to form a circulating channel for cooling water.

[0083] Advantages: Such a design allows cooling water to be evenly distributed between each cooling ring 6, ensuring consistency in cooling effect.

[0084] Increase the collection box 18:

[0085] Working principle: The collection box 18 is arranged at the bottom of the chassis 2, and one end of the collection box 18 is provided with a drain pipe 22, and the drain pipe 22 is provided with a valve 23.

[0086] Advantages: The collection box 18 can collect the cooling water or other liquid discharged from the crystallization tank 1, and discharge it outside the system through the drain pipe 22 for recycling or disposal.

[0087] Nozzle 21 arrangement optimization:

[0088] Working principle: The nozzle 21 is arranged at the bottom and both sides of the cooling ring 6, and the cooling ring 6 is provided with two nozzles 21 on both sides, and the nozzle 21 at the top of the cooling ring 6 is directed towards the inside top of the cooling ring 6.

[0089] Advantages: Such an arrangement can ensure that cooling water is evenly sprayed on various parts of the crystallization pipe 5, especially the top of the crystallization pipe 5, which helps to improve the cooling effect and reduce crystallization defects.

[0090] Working principle

[0091] Preferred technical solutions,

[0092] Crystallization pipe 5 inclined arrangement:

[0093] The inclined arrangement increases the residence time of the toughening solution, which is beneficial to the uniform progress of the crystallization process.

[0094] Cooling ring 6 U-shaped structure and installation:

[0095] The U-shaped cooling ring 6 is wrapped outside the crystallization pipe 5 and is fixed on the mounting hole of the inner wall of the crystallization tank 1 through the connecting pipe 19 and the limiting nut.

[0096] The through hole 20 on the connecting pipe 19 is connected in series with the liquid guide pipe 7 to form a cooling water channel, ensuring consistency in cooling effect.

[0097] The nozzles 21 are arranged around the cooling ring 6, and the nozzles 21 at the top of the U-shaped ring are inclined towards the inside of the cooling ring 6, so that the annular surface of the crystallization pipe 5 is evenly sprayed with cooling water.

[0098] Cooling water delivery:

[0099] After the cooling pump 9 is started, cooling water is delivered into the U-shaped cooling ring 6 through the liquid guide pipe 7.

[0100] The cooling water is evenly sprayed outside the crystallization pipe 5 through the nozzle 21, takes away heat, and promotes the crystallization process.

[0101] The cooled water is discharged into the collecting tank 18 below through the opening 10 at the bottom of the crystallization tank 1, the recovered cooling water in the collecting tank 18 is discharged through the drain pipe 22, and the recovered cooling water is recycled or treated, and the drain pipe 22 is opened or closed through the valve 23.

[0102] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous casting machine that can improve the yield rate, characterized in that, The utility model provides a crystallization system, the crystallization system includes crystallization tank (1), crystallization pipeline (5), vibration assembly and cooling assembly, the vibration assembly includes underframe (2), buffer spring (17), drive motor (8), crank axle (11), connecting rod (14) and top rod (15), buffer spring (17) fixed mounting is in the side of underframe (2), the bottom of crystallization tank (1) is fixedly connected with buffer spring (17), the top of crystallization tank (1) is equipped with liquid inlet (3), one side of crystallization tank (1) is equipped with liquid outlet (4), and the cooling assembly is arranged in crystallization tank (1), and the both ends of crystallization pipeline (5) are communicated with liquid inlet (3) and liquid outlet (4) respectively, the cooling assembly includes cooling pump (9), cooling ring (6) and cooling nozzle (21), cooling ring (6) is sleeved in the outside of crystallization pipeline (5), cooling nozzle (21) is arranged on cooling ring (6), cooling pump (9) is installed on underframe (2), cooling ring (6) is communicated with cooling pump (9) through liquid guide pipe (7), the bottom of crystallization tank (1) is equipped with opening (10), and liquid guide pipe (7) is from opening (10) and goes out crystallization tank (1), drive motor (8) is fixedly installed in one end of underframe (2), the other end of underframe (2) is equipped with bearing frame (16), one end of crank axle (11) is adapted with the output end of drive motor (8) through the shaft coupling, the other end of crank axle (11) is rotatably connected with bearing frame (16) through bearing, a plurality of eccentric cranks (12) are equipped on the crank axle (11), eccentric shaft (13) is hinged on eccentric crank (12), through hole is penetrated in eccentric shaft (13), a plurality of top rods (15) are fixedly installed on the bottom of crystallization tank (1), the bottom of connecting rod (14) is inserted into the through hole of eccentric crank (12), and the bottom of connecting rod (14) is installed with limiting nut through screw structure, the top of connecting rod (14) is hinged with top rod (15).

2. The continuous caster capable of improving yield according to claim 1, wherein The crystallization pipeline (5) is arranged obliquely in the crystallization tank (1).

3. The continuous caster capable of improving yield according to claim 1, wherein The cooling ring (6) adopts a U-shaped structure, and a plurality of cooling rings (6) are arranged.

4. The continuous caster capable of improving yield according to claim 3, wherein The connecting pipe (19) is provided with a through hole (20), and the liquid guide pipe (7) is connected in series on the through hole (20) of the connecting pipe (19).

5. The continuous caster capable of improving yield according to claim 4, wherein The utility model also includes a collecting tank (18) arranged at the bottom of the underframe (2), one end of the collecting tank (18) is provided with a drain pipe (22), and the drain pipe (22) is provided with a valve (23).

6. The continuous caster capable of improving yield according to claim 5, wherein The nozzle (21) is arranged at the bottom of the cooling ring (6) and at both sides of the cooling ring (6), both sides of the cooling ring (6) are provided with two nozzles (21), and the nozzle (21) at the top end of the cooling ring (6) is directed to the inner top end of the cooling ring (6).

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