A crystallizer apparatus having a rotary joint water line

Abstract

The present application relates to the technical field of steel metallurgy, and particularly relates to a crystallizer device with a rotary joint water pipe, which comprises a crystallizer body as a carrier of the whole device, a cooling mechanism for cooling liquid steel is arranged on the crystallizer body, a heat conduction layer for conducting heat is arranged on the side wall close to the liquid steel in the cavity, a plurality of flow guide strips a with the same spacing are arranged in the cavity, a plurality of spray heads for spraying cooling liquid are arranged on the flow guide strips a, a flow guide box for conveying the cooling liquid is arranged in the cavity, a flow guide opening for leading out the cooling liquid is arranged on the base, the upper wall of the flow guide strip a is a slope facing the flow guide opening, and a lifting assembly for adjusting the spacing between the flow guide strips a is arranged on the crystallizer body. The cooling mechanism can increase the contact area between the cooling liquid and the outer wall of the heat conduction layer 202, and improve the cooling effect. The spraying amount and spraying mode of the cooling liquid can be adjusted according to the specific conditions of each part to achieve the best cooling effect.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy technology, specifically to a crystallizer device containing a rotary joint water pipe. Background Technology

[0002] In the special metallurgical industry, the crystallizer requires cooling water throughout the entire smelting process. The crystallizer assembly consists of copper tubes at the top and bottom, with a water jacket on the outside. A cavity is formed between the water jacket and the crystallizer to ensure that the circulating cooling water passes through evenly. This allows the copper tubes of the crystallizer to absorb heat from the molten steel evenly, so that the special steel can form a billet shell of uniform thickness during the condensation process. Because the design of the crystallizer is fixed, the cooling range cannot be adjusted according to the depth of the molten steel. This leads to uneven cooling on the surface of the molten steel, which may result in overcooling or undercooling. Overcooling will cause the molten steel to crystallize prematurely, affecting the normal operation of the crystallizer; while undercooling will affect the quality of the molten steel and the crystallization speed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a crystallizer device with a rotary joint water pipe, which has the advantage of being able to spray coolant more accurately according to the depth of the molten steel, and to adjust the spraying range. This solves the problem of uneven cooling effect on the surface of the molten steel due to the inability to adjust the cooling range according to the depth of the molten steel.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A crystallizer device with a rotary joint water pipe includes a crystallizer body serving as the carrier of the entire device. The crystallizer body is provided with a cooling mechanism for cooling molten steel. The cooling mechanism includes cavities located on both sides inside the crystallizer body. A heat-conducting layer for conducting heat is provided on the side wall of the cavity near the molten steel. Multiple guide strips a with equal spacing are provided inside the cavity. Multiple nozzles for spraying coolant are provided on the guide strips a. A guide box for conveying coolant is provided inside the cavity. A guide port for discharging coolant is opened on the base and is connected to the cavity. The upper wall of the guide strips a is an inclined surface facing the guide port. A lifting component for adjusting the spacing between the guide strips a is provided on the crystallizer body.

[0006] Preferably, a connecting pipe connects the flow guide box and the flow guide strip a, an inlet pipe connects to the flow guide box, and an outlet pipe connected to the base is fixedly connected to it.

[0007] Preferably, the lifting assembly includes a drive shaft rotatably mounted in the cavity, a plurality of threaded sleeves with different thread pitches are fitted on the drive shaft, a plurality of guide strips a are respectively fitted on adjacent threaded sleeves, and an adjustment assembly b for adjusting the spray angle of the nozzle.

[0008] Preferably, the pitch of the plurality of threaded sleeves gradually decreases from top to bottom to maintain the same spacing between the guide strips a.

[0009] Preferably, the adjustment component b includes a bracket fixed to the guide strip a, a rotating column rotatably mounted on the bracket, a gear a fixed to the end of the rotating column, a rack a fixed to the inner wall of the cavity for meshing and transmission with the adjacent gear a, a transmission plate a hinged between multiple nozzles on the same guide strip a, a transmission chain fixed to the transmission plate a sleeved on the rotating column, a guide strip b at the bottom of the cavity, a groove corresponding to the transmission shaft on the guide strip b, multiple nozzles connected to the guide strip b, and an adjustment component a on the guide strip b.

[0010] Preferably, a rack b is fixedly connected to the bottom of the guide strip a near the guide strip b, a transmission plate b is provided between the nozzles, a transmission column is rotatably mounted on the guide strip b, a gear b that meshes with the rack b is fixedly connected to the end of the transmission column, a connecting chain connects the transmission column and the transmission plate b, and the guide strip b and the guide box are connected by a connecting pipe.

[0011] Preferably, the gear rings on the plurality of gears a increase in size from top to bottom to keep the nozzle adjustment angles on each guide strip a the same.

[0012] Preferably, a worm gear is fitted at the bottom of the transmission shaft, a motor is fixedly installed in the base, a connecting shaft is fixedly connected to the output end of the motor, and a worm gear that meshes with the worm gear is fitted on the connecting shaft.

[0013] Preferably, both the inlet pipe and the outlet pipe are equipped with rotary joints, which are connected to external pipes.

[0014] Preferably, the crystallizer body is also provided with a cover plate, and the heat-conducting layer is composed of a heat-conducting metal material.

[0015] By employing the above technical solution, the present invention provides a crystallizer device containing a rotary joint water pipe, which has at least the following beneficial effects:

[0016] 1. The crystallizer device with rotary joint water pipe can increase the contact area between the coolant and the outer wall of the heat-conducting layer by setting a cooling mechanism, thereby improving the cooling effect. Each part can adjust the spray volume and spray method of the coolant according to specific conditions to achieve the best cooling effect.

[0017] 2. The crystallizer device with a rotary joint water pipe can adjust the spray volume and spray method of the coolant in a targeted manner, reducing unnecessary energy consumption. The coolant in different parts can be adjusted according to specific needs to avoid waste and unnecessary energy consumption.

[0018] 3. The crystallizer device with a rotary joint water pipe can achieve uniform cooling of the entire crystallizer by dividing the outer wall of the heat-conducting layer into multiple parts for cooling. The coolant in different parts can be adjusted as needed to ensure uniform temperature in each part and avoid stress concentration and deformation caused by excessive temperature gradient.

[0019] 4. This crystallizer device with a rotary joint water pipe can more accurately spray coolant according to the depth of the molten steel, and adjust the spray range. The smaller the spacing, the smaller the spray range, and vice versa. For shallower molten steel, the spray range and spacing can be reduced so that the coolant is sprayed more concentratedly onto the surface and the cooling speed is accelerated. For deeper molten steel, the spray range and spacing can be increased so that the coolant covers the surface more widely and achieves uniform cooling.

[0020] 5. The crystallizer device with a rotary joint water pipe can rotate the water jacket 360° through the action of the rotary joint, ensuring that the circulating cooling water pipe is not easily bent, easy to drag, convenient and flexible, improving the service life of the water jacket, and also improving the smelting efficiency of the electroslag remelting furnace. Attached Figure Description

[0021] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front.

[0023] Figure 2 This is a schematic diagram of the internal structure of the cavity of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the base of the present invention;

[0025] Figure 4 This is a schematic diagram of the cooling mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at point A;

[0027] Figure 6 This is a schematic diagram of the structure of the regulating component b of the present invention.

[0028] Figure label:

[0029] 100. Crystallizer body; 101. Base; 102. Cover plate; 103. Water inlet pipe; 104. Water outlet pipe; 105. Rotary joint;

[0030] 200. Cooling mechanism; 201. Cavity; 202. Heat-conducting layer; 203. Guide bar a; 204. Guide bar b; 205. Nozzle; 206. Flow port; 207. Adjustment component a; 2071. Transmission column; 2072. Connecting chain; 2073. Transmission plate b; 2074. Gear b; 2075. Rack b; 208. Adjustment component b; 2081. Transmission plate a; 2082. Rotating column; 2083. Transmission chain; 2084. Gear a; 2085. Rack a; 209. Motor; 210. Connecting shaft; 211. Worm; 212. Transmission shaft; 213. Worm wheel; 214. Screw sleeve; 215. Flow box; 216. Connecting pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The following describes, with reference to the accompanying drawings, some embodiments of a crystallizer device containing a rotary joint water pipe, provided by the present invention.

[0033] Example 1:

[0034] Combination Figures 1-4 As shown, the present invention provides a crystallizer device with a rotary joint water pipe, including a crystallizer body 100 as the carrier of the entire device. The crystallizer body 100 is provided with a cooling mechanism 200 for cooling molten steel. The cooling and crystallization rate of molten steel in the crystallizer body 100 depends on the temperature and cooling rate inside the crystallizer body 100. Spraying coolant can reduce the temperature of the outer wall of the heat-conducting layer 202, increase the cooling rate of molten steel, and accelerate the crystallization rate of molten steel.

[0035] The cooling mechanism 200 includes cavities 201 located on both sides of the crystallizer body 100. A heat-conducting layer 202 for heat conduction is provided on the side wall of the cavity 201 near the molten steel. Multiple equally spaced guide strips a203 are provided within the cavity 201, and multiple nozzles 205 for spraying coolant are provided on the guide strips a203. A guide box 215 for conveying coolant is provided within the cavity 201. A guide port 206 for discharging coolant is opened on the base 101 and is connected to the cavity 201. The upper wall of the guide strips a203 is inclined towards the guide port 206. The sprayed coolant flows down the inclined surface and then enters the base 101 through the guide port 206, discharging the used coolant. The multiple guide strips a203 cool multiple portions of the heat-conducting layer 202, and then the guide strips a203 convey the coolant to the nozzles 205. At each location, the nozzle 205 sprays coolant to all distributions, which increases the contact area between the coolant and the outer wall of the heat-conducting layer 202, improving the cooling effect. The amount and method of coolant spraying in each part can be adjusted according to specific conditions to achieve the best cooling effect. The amount and method of coolant spraying can also be adjusted in a targeted manner to reduce unnecessary energy consumption. The coolant in different parts can be adjusted according to specific needs to avoid waste and unnecessary energy consumption. The crystallizer body 100 is equipped with a lifting component for adjusting the spacing between the guide bars a203, which can achieve uniform cooling of molten steel at different depths within the crystallizer body 100. There may be temperature differences in molten steel at different depths. By adjusting the position of the nozzle 205, the coolant can fully cover the molten steel at different depths to achieve uniform cooling and avoid stress concentration and deformation caused by excessive temperature gradient.

[0036] Specifically, a connecting pipe 216 connects the flow guide box 215 and the flow guide strip a203. The flow guide box 215 injects coolant into the flow guide strip a203 through the connecting pipe 216 to achieve coolant spraying. A water inlet pipe 103 is connected to the flow guide box 215, and a water outlet pipe 104 connected to it is fixed to the base 101. The coolant enters through the water inlet pipe 103 and is then discharged through the water outlet pipe 104.

[0037] Furthermore, both the inlet pipe 103 and the outlet pipe 104 are equipped with rotary joints 105. The rotary joints 105 are connected to external pipes. Through the action of the rotary joints 105, the pipes can be rotated 360°, ensuring that the circulating cooling pipes are not easily bent, easy to drag, convenient and flexible, improving the service life of the water jacket, and also improving the smelting efficiency of the electroslag remelting furnace.

[0038] The crystallizer body 100 is also provided with a cover plate 102, and the heat-conducting layer 202 is composed of heat-conducting metal material, which has a good heat conduction effect.

[0039] As can be seen from the embodiments, by dividing the outer wall of the heat-conducting layer 202 into multiple parts for cooling, the overall uniform cooling of the crystallizer can be achieved. The coolant in different parts can be adjusted as needed to ensure that the temperature of each part is uniform and to avoid stress concentration and deformation caused by excessive temperature gradient.

[0040] Example 2:

[0041] Combination Figure 3 and Figure 4 As shown, based on Embodiment 1, the lifting assembly includes a drive shaft 212 rotatably mounted within the cavity 201. Multiple threaded sleeves 214 with different thread pitches are fitted onto the drive shaft 212. Multiple guide strips a203 are respectively fitted onto adjacent threaded sleeves 214. It also includes an adjustment assembly b208 for adjusting the spray angle of the nozzle 205. The rotation of the drive shaft 212 drives the threaded sleeves 214 to rotate, thereby adjusting the position of the guide strips a203 according to the depth of the molten steel. The shallower the molten steel, the lower the position of the guide strips a203; conversely, the deeper the molten steel, the higher the position of the guide strips a203. Adjusting the position of the nozzle 205 allows the coolant to be sprayed more accurately onto the surface of the molten steel, increasing the contact area between the coolant and the molten steel and improving the cooling effect. Especially for shallower molten steel, adjusting the position of the nozzle 205 allows the coolant to be sprayed more concentratedly onto the surface, accelerating the cooling speed and improving the cooling effect.

[0042] Specifically, the pitch of multiple threaded sleeves 214 gradually decreases from top to bottom to maintain the same spacing between the guide strips a203. The smaller the pitch, the smaller the descent distance of the guide strip a203 at the same rotation frequency, and vice versa. This can maintain the same spacing between the guide strips a203 and achieve uniform cooling.

[0043] Furthermore, a worm gear 213 is fitted at the bottom of the drive shaft 212, and a motor 209 is fixedly installed inside the base 101. A connecting shaft 210 is fixedly connected to the output end of the motor 209. A worm 211 that meshes with the worm gear 213 is fitted on the connecting shaft 210. When the motor 209 starts, it drives the connecting shaft 210 to rotate. The worm 211 rotates with the connecting shaft 210 and drives the drive shaft 212 to rotate through the worm gear 213. The position of the guide strips a203 on both sides can be adjusted at the same time.

[0044] Example 3:

[0045] Combination Figure 4 and Figure 6As shown, based on Embodiment 1, the adjusting component b208 includes a bracket fixed to the guide bar a203, a rotating column 2082 rotatably mounted on the bracket, a gear a2084 fixed to the end of the rotating column 2082, a rack a2085 fixed to the inner wall of the cavity 201 for meshing and transmission with the adjacent gear a2084, a transmission plate a2081 hinged between multiple nozzles 205 on the same guide bar a203, a transmission chain 2083 fixed to the rotating column 2082 and connected to the transmission plate a2081, a guide bar b204 at the bottom of the cavity 201, a groove corresponding to the transmission shaft 212 on the guide bar b204, multiple nozzles 205 also connected to the guide bar b204, an adjusting component a207 on the guide bar b204, the guide bar a203 drives the rotating column 2082 to rotate, and the gear a2085 is adjusted. As the rotating column 2082 rotates, the wheel a2084 can wind or unwind the transmission chain 2083, which in turn pulls the transmission plate a2081 to adjust its angle, thereby adjusting the angle of the nozzle 205. The larger the spacing between the guide bars a203, the larger the angle of the nozzle 205, and vice versa, thus adjusting the spraying range. The smaller the spacing, the smaller the spraying range, and vice versa. This allows for more accurate spraying of coolant based on the depth of the molten steel. For shallower molten steel, the spraying range and spacing can be reduced to concentrate the coolant onto the surface and accelerate the cooling speed. For deeper molten steel, the spraying range and spacing can be increased to cover the surface more widely and achieve uniform cooling.

[0046] As can be seen from the embodiments, by adjusting the spraying range and spacing, the amount of coolant sprayed can be adjusted according to the depth of the molten steel, avoiding unnecessary waste of coolant. For deeper molten steel, the amount of coolant sprayed can be appropriately reduced to save coolant usage.

[0047] Example 4:

[0048] Combination Figure 4 and Figure 5

[0049] As shown, based on Embodiment 1, a rack b2075 is fixedly connected to the bottom of the guide bar a203 near the guide bar b204. A transmission plate b2073 is provided between the nozzles 205. A transmission column 2071 is rotatably mounted on the guide bar b204. A gear b2074 that meshes with the rack b2075 is fixedly connected to the end of the transmission column 2071. A connecting chain 2072 connects the transmission column 2071 and the transmission plate b2073. The guide bar b204 and the guide box 215 are connected through a connecting pipe 216. As the guide bar a203 descends, the rack b2075 meshes with the gear b2074, driving the transmission column 2071 to rotate. This is the same working principle as the adjustment component b208, which can adjust the spraying range according to the depth of the molten steel.

[0050] Specifically, the gear rings on multiple gears a2084 increase in size from top to bottom to keep the adjustment angle of the nozzles 205 on each guide bar a203 the same. The larger the gear ring, the smaller the rotation position of the corresponding rotating column 2082, which in turn ensures that the adjustment angle of each group of nozzles 205 is the same. Using a single power source, it is possible to achieve corresponding spraying methods for molten steel of different depths, which can both ensure the spraying effect and save equipment manufacturing costs.

[0051] As can be seen from the above embodiments: when molten steel is injected into the crystallizer body 100, the operator adjusts the position of the guide bar a203 according to the depth of the molten steel. The shallower the molten steel, the lower the position of the guide bar a203 is, and vice versa. Adjusting the position of the nozzle 205 allows the coolant to be sprayed more accurately onto the surface of the molten steel, increasing the contact area between the coolant and the molten steel and improving the cooling effect. Especially for shallower molten steel, adjusting the position of the nozzle 205 allows the coolant to be sprayed more concentratedly onto the surface, accelerating the cooling speed and improving the cooling effect. Subsequently, the coolant enters the guide box 215 from the inlet pipe 103. The guide box 215 injects the coolant into the guide bar a203 through the connecting pipe 216. Then, the guide bar a203 transports the coolant to the nozzle 205. The nozzle 205 sprays coolant onto all distributions. The coolant that falls off the spray flows down the slope and then enters the base 101 through the guide port 206, where the used coolant is discharged.

[0052] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crystallizer device with a rotary joint water pipe, comprising a crystallizer body (100) serving as the carrier of the entire device, characterized in that: The crystallizer body (100) is provided with a cooling mechanism (200) for cooling molten steel; The cooling mechanism (200) includes cavities (201) located on both sides of the crystallizer body (100). A heat-conducting layer (202) for conducting heat is provided on the side wall of the cavity (201) near the molten steel. Multiple equally spaced guide strips a (203) are provided within the cavity (201), and multiple nozzles (205) for spraying coolant are provided on the guide strips a (203). A guide box for conveying coolant is also provided within the cavity (201). (215) A guide port (206) for discharging coolant is provided on the base (101). The guide port (206) is connected to the cavity (201). The upper wall of the guide strip a (203) is an inclined surface facing the guide port (206). The crystallizer body (100) is provided with a lifting component for adjusting the distance between the guide strips a (203), and also includes an adjustment component b (208) for adjusting the spray angle of the nozzle (205). The adjustment component b (208) includes a bracket fixed to the guide bar a (203), a rotating column (2082) rotatably mounted on the bracket, a gear a (2084) fixed to the end of the rotating column (2082), a rack a (2085) fixed to the inner wall of the cavity (201) for meshing and transmission with the adjacent gear a (2084), and transmission plates hinged between multiple nozzles (205) on the same guide bar a (203). a(2081), a transmission chain (2083) is fitted on the rotating column (2082) and fixed to the transmission plate a(2081), a guide strip b(204) is provided at the bottom of the cavity (201), a groove corresponding to the transmission shaft (212) is opened on the guide strip b(204), a number of nozzles (205) are also connected on the guide strip b(204), and an adjustment component a(207) is provided on the guide strip b(204).

2. The crystallizer apparatus with a rotary joint water pipe according to claim 1, characterized in that: A connecting pipe (216) is connected between the flow guide box (215) and the flow guide strip a (203). A water inlet pipe (103) is connected to the flow guide box (215), and a water outlet pipe (104) connected to it is fixed on the base (101).

3. The crystallizer apparatus with a rotary joint water pipe according to claim 1, characterized in that: The lifting assembly includes a drive shaft (212) rotatably mounted in the cavity (201), and multiple threaded sleeves (214) with different thread pitches are fitted on the drive shaft (212). Multiple guide strips a (203) are respectively fitted on the adjacent threaded sleeves (214).

4. The crystallizer apparatus with a rotary joint water pipe according to claim 3, characterized in that: The pitch of the multiple threaded sleeves (214) gradually decreases from top to bottom to keep the spacing between the guide strips a (203) the same.

5. The crystallizer apparatus with a rotary joint water pipe according to claim 1, characterized in that: A rack b (2075) is fixedly connected to the bottom of the guide strip a (203) near the guide strip b (204). A transmission plate b (2073) is provided between the nozzles (205). A transmission column (2071) is rotatably mounted on the guide strip b (204). A gear b (2074) that meshes with the rack b (2075) is fixedly connected to the end of the transmission column (2071). A connecting chain (2072) is connected between the transmission column (2071) and the transmission plate b (2073). The guide strip b (204) and the guide box (215) are connected through a connecting pipe (216).

6. The crystallizer apparatus with a rotary joint water pipe according to claim 5, characterized in that: The gear rings on the multiple gears a (2084) increase in size from top to bottom to keep the nozzles (205) on each guide bar a (203) adjusting at the same angle.

7. The crystallizer apparatus with a rotary joint water pipe according to claim 3, characterized in that: The bottom of the drive shaft (212) is fitted with a worm gear (213), and a motor (209) is fixedly installed in the base (101). The output end of the motor (209) is fixedly connected to a connecting shaft (210), and a worm (211) that meshes with the worm gear (213) is fitted on the connecting shaft (210).

8. The crystallizer apparatus with a rotary joint water pipe according to claim 2, characterized in that: Both the inlet pipe (103) and the outlet pipe (104) are equipped with rotary joints (105), which are connected to external pipes.

9. The crystallizer apparatus with a rotary joint water pipe according to claim 1, characterized in that: The crystallizer body (100) is also provided with a cover plate (102), and the heat-conducting layer (202) is composed of heat-conducting metal material.

Images