A fan-shaped upper cooling water outlet device and pressure relief method

Abstract

This invention discloses a fan-shaped, segment 0 upper cooling water outlet device and a pressure-reducing method, relating to the field of continuous casting technology in the metallurgical industry. It includes: a cooling water pipe for discharging cooling water; a pressure-reducing component for pressurizing the passing cooling water; and a buffer component for reducing the pressure of the passing cooling water. A connecting pipe is provided on one side of the cooling water pipe, and a first solenoid valve extending into the top of the cooling water pipe, away from the connecting pipe, is installed. In this invention, when the number of second solenoid valves opened decreases, the water flow is still pressurized by the movable pressure-reducing plate. Simultaneously, due to the smaller orifice, the pressure-reducing stage can reduce the pressure of water flow with greater impact force. Then, the water flow is further pressure-reduced by the buffer plate, ensuring that the cooling water pressure from any set of longitudinal water pipes is stable, resulting in a consistent impact force of the sprayed water flow. This avoids the impact of high or low water pressure on the product, improving utilization.

Description

Technical Field

[0001] This invention relates to the field of continuous casting technology in the metallurgical industry, specifically to a fan-shaped upper cooling water outlet device and a pressure-relieving method for the 0-segment. Background Technology

[0002] Slab continuous casting is a continuous steelmaking technology that uses slabs as the main product. Slabs with a width-to-thickness ratio greater than 3 are called slabs. Continuous casting of steel slabs is mainly used to roll flat plates (thick plates, medium plates, thin plates, strips and coils). The slab dimensions cast by continuous casting machines are usually: thickness 150-250mm, width 1000-1800mm; small slabs can be 600mm wide and 120mm thick. Slabs with a thickness of less than 100mm are called thin slabs. During the product preparation process, the slab continuous casting machine needs to cool the cast products using cooling water.

[0003] To reduce the impact of equipment leakage on billet quality and improve the service life of the fan-shaped section and roller system, a method for modifying the water channel of the fan-shaped section of a continuous casting machine has been developed (see patent number: 201210222533.5). This method belongs to the field of continuous casting equipment technology and is mainly applicable to the design and modification of the water channel frame structure of the fan-shaped section of a continuous casting machine. By changing the position of the water holes and the material of the water pipes, the problem of difficult repair or even scrapping of the fan-shaped section caused by blockage, corrosion and leakage of the cooling water channel is solved. The advantage is that it extends the service life of the fan-shaped section frame structure.

[0004] When cooling water is applied to the upper part of the fan-shaped 0-segment, in order to save water, the spraying range is generally controlled according to the actual situation and the contact surface of the product. This results in some parts of the cooling water being discharged and some parts not being discharged. However, the control effect is poor when adjusting the number of water sprayed by the spray pipe. If the number of water sprayed by the spray pipe is reduced, the water sprayed by the spray pipe will have a larger impact force, which will have a greater impact force on the product surface and reduce the utilization rate. On the other hand, if the number of water sprayed by the spray pipe is increased, the water volume will be dispersed, which will reduce the impact force of the sprayed water flow and fail to achieve the stamping state, thus reducing the utilization rate. Summary of the Invention

[0005] The purpose of this invention is to address the problem that the control effect is poor when adjusting the number of water sprayed by the spray pipe. If the number of water sprayed by the spray pipe is reduced, the water sprayed from the spray pipe will have a larger impact force, resulting in a greater impact force on the product surface and reducing utilization. Conversely, if the number of water sprayed by the spray pipe is increased, the water volume is dispersed, resulting in a smaller impact force of the sprayed water flow, which fails to achieve the desired pressing state and thus reduces utilization. The invention provides a fan-shaped 0-segment upper cooling water outlet device and a pressure-relieving method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fan-shaped upper cooling water outlet device and a pressure-relieving method, comprising:

[0007] Cooling water pipes are used to drain cooling water.

[0008] A pressure assembly used to press the material through cooling water;

[0009] A buffer assembly is used to depressurize the passing cooling water;

[0010] A connecting pipe is provided on one side of the cooling water pipe. A first solenoid valve extending into the top of the cooling water pipe, away from the connecting pipe, is installed. Multiple sets of longitudinal water pipes are evenly arranged at the bottom of the cooling water pipe. A second solenoid valve extending into the top of one side of the longitudinal water pipe is installed. Movable holes and connecting holes are sequentially provided at the top and bottom of one side of the longitudinal water pipe, below the second solenoid valve. A movable cover is provided at the bottom of one side of the longitudinal water pipe. The pressure-blocking assembly includes a movable pressure plate. A movable rod extending into one side of the longitudinal water pipe is provided at the top of each movable pressure plate. A fixed block is provided at the bottom of each movable rod. An elastic element is provided on the side of each fixed block near the longitudinal water pipe. The buffer assembly includes a rotating shaft. A rotating rod extending into the movable cover is provided on one side of the rotating shaft. A torsion spring is provided on the outside of the rotating rod and inside the movable cover. Buffer plates are provided at the four corners outside the rotating shaft. Buffer grooves are provided on the end faces of each buffer plate. The rotating rod is rotatably connected to one side inside the movable cover.

[0011] As a further embodiment of the present invention: a bearing seat is provided on one side of the rotating rod, and the rotating rod is rotatably connected to one side of the interior of the movable cover through the mutual cooperation of the bearing seat and the bearing, and the rotating rod extends into the interior of the movable cover through a rotating hole.

[0012] As a further aspect of the present invention: the cross-section of the movable pressure plate is arc-shaped, and the rotation angle of the movable pressure plate with respect to the movable hole is 0°-10°.

[0013] As a further embodiment of the present invention: the top of the movable rod has an arc-shaped structure, and the movable rod is movably connected to the longitudinal water pipe through a movable hole.

[0014] As a further embodiment of the present invention: welding blocks are provided on both sides of the elastic member, and the elastic member is welded to one side of the fixed block and one side of the longitudinal water pipe through the welding blocks respectively.

[0015] As a further embodiment of the present invention: the longitudinal water pipe is connected to the movable cover through a rotating hole, and the top end of the inside of the rotating rod is connected to the bottom end of the inside of the cooling water pipe.

[0016] As a further aspect of the present invention: the pressure-reducing method of the cooling water outlet device at the upper part of the sector 0 segment specifically includes the following steps:

[0017] Step 1: Cooling water is introduced into the interior of the cooling water pipe through the connecting pipe, and then into the interior of the longitudinal water pipe through the cooling water pipe, and finally sprayed out through the nozzle at the bottom of the longitudinal water pipe.

[0018] Step 2: Each group of longitudinal water pipes can be individually controlled using the second solenoid valve. This allows the main equipment controller to directly control each group of second solenoid valves electrically. The opening time and number of each second solenoid valve can be set sequentially. When a large number of second solenoid valves are open, the impact force of the cooling water flow through each group of longitudinal water pipes decreases. Then, when passing through the movable pressure plate, the space between the movable pressure plate and the longitudinal water pipe is reduced, causing the cooling water flow to be squeezed by the smaller orifice, thus increasing the impact force of the cooling water flow in advance.

[0019] Step 3: The pressurized cooling water flows to the buffer plate and impacts it. At the same time, the buffer plate under force directly exerts a pulling force on the torsion spring, causing it to deform and generate corresponding elastic potential energy. This causes the torsion spring to exert a reverse elastic resistance force on the buffer plate. This reverse resistance force directly acts on the passing cooling water flow, thus buffering the flow and reducing the impact force of the water flow. This ensures that the water pressure output from each set of longitudinal water pipes is consistent, thereby achieving a better pressure regulation effect.

[0020] Step four: When the number of second solenoid valves opened decreases, the water flow is also pressed by the movable pressure plate. At the same time, due to the smaller orifice, the pressure is reduced during the slowing phase, which can slow down the water flow with a large impact force. Then, the water flow is slowed down again by the buffer plate, so that the cooling water pressure is stable regardless of which set of longitudinal water pipes leads out, thus making the impact force of the sprayed water flow consistent. This avoids the impact of large or small water pressure on the product, thereby improving the utilization rate.

[0021] Step 5: After use, the first solenoid valve can be opened to drain excess water from the cooling water pipe, making it easier for subsequent maintenance operations.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 2. Through the configured cooling water pipes, pressure-blocking components, and buffer components, during use, cooling water is introduced into the interior of the cooling water pipes via connecting pipes, then into the interior of the longitudinal water pipes, and finally sprayed out through nozzles at the bottom of the longitudinal water pipes. Simultaneously, each group of longitudinal water pipes can be individually controlled using second solenoid valves. This allows direct electrical control of each group of second solenoid valves via the main equipment controller, enabling the sequential setting of the opening time and number of openings for each second solenoid valve. When a large number of second solenoid valves are open, the impact force of the cooling water flow through each group of longitudinal water pipes decreases. Then, when passing through the movable pressure plate, the space reserved between the movable pressure plate and the longitudinal water pipes is reduced, thus... The cooling water flow is compressed by the smaller pores, which pre-increases the impact force of the cooling water flow. Then, the pressurized cooling water flow is guided to the buffer plate and impacts the buffer plate. At the same time, the buffer plate under force will directly generate a pulling force on the torsion spring, causing it to deform and generate corresponding elastic potential energy. This causes the torsion spring to generate a reverse elastic resistance force on the buffer plate. This reverse resistance force will directly act on the cooling water flow, thus buffering the cooling water flow and reducing the impact force of the water flow. This makes the water pressure output from each set of longitudinal water pipes consistent, thus achieving a better pressure regulation effect.

[0024] 2. Through the installation of cooling water pipes, pressure-reducing components, and buffer components, when the number of second solenoid valves opened decreases, the water flow is still pressured by the movable pressure plate. At the same time, due to the smaller orifice, the pressure-reducing phase can slow down the water flow with greater impact force. Then, the water flow is further pressured by the buffer plate, so that the cooling water pressure from which it is discharged from the longitudinal water pipe is stable, thus ensuring that the impact force of the sprayed water flow is consistent. This avoids the impact of large or small water pressure on the product, thereby improving the utilization rate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a partial perspective view of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged view of A in the middle;

[0028] Figure 4 For the present invention Figure 2 A magnified view of B in the middle.

[0029] In the diagram: 1. Cooling water pipe; 101. First solenoid valve; 102. Longitudinal water pipe; 103. Second solenoid valve; 104. Connecting pipe; 105. Movable hole; 106. Movable cover; 2. Pressing assembly; 201. Movable pressing plate; 202. Movable rod; 203. Fixed block; 204. Elastic element; 3. Buffer assembly; 301. Rotating shaft; 302. Buffer plate; 303. Buffer groove; 304. Rotating rod; 305. Bearing seat; 306. Torsion spring. Detailed Implementation

[0030] 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.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0032] Please see Figures 1-4 In this embodiment of the invention, a cooling water outlet device for the upper part of a fan-shaped 0-segment and a pressure-reducing method include:

[0033] Cooling water pipe 1 is used to drain cooling water;

[0034] The pressure assembly 2 is used to press the cooled water through the pressure assembly.

[0035] Buffer component 3 is used to depressurize the passing cooling water;

[0036] A connecting pipe 104 is provided on one side of the cooling water pipe 1. A first solenoid valve 101 extending into the top of the cooling water pipe 1 is installed on the side away from the connecting pipe 104. Multiple sets of longitudinal water pipes 102 are evenly arranged at the bottom of the cooling water pipe 1. A second solenoid valve 103 extending into the top of one side of the longitudinal water pipe 102 is installed. Movable holes 105 and connecting holes are sequentially provided at the top and bottom of one side of the longitudinal water pipe 102 and below the second solenoid valve 103. A movable cover 106 is provided at the bottom end of one side of the longitudinal water pipe 102. The pressure assembly 2 includes a movable pressure plate 201. The top of the movable pressure plate 201 is provided with an extension... The movable rod 202 on one side of the longitudinal water pipe 102 is provided with a fixing block 203 at the bottom of the movable rod 202. The fixing block 203 is provided with an elastic element 204 on the side of the fixed block 203 near the longitudinal water pipe 102. The buffer assembly 3 includes a rotating shaft 301. A rotating rod 304 extending into the interior of the movable cover 106 is provided on one side of the rotating shaft 301. Torsion springs 306 are provided on the outside of the rotating rod 304 and inside the movable cover 106. Buffer plates 302 are provided at the four corners outside the rotating shaft 301. Buffer grooves 303 are provided on the end face of the buffer plates 302. The rotating rod 304 is rotatably connected to one side inside the movable cover 106.

[0037] Please refer to this carefully. Figure 1 , 2 3. A bearing seat 305 is provided on one side of the rotating rod 304. The rotating rod 304 is rotatably connected to one side of the interior of the movable cover 106 through the mutual cooperation of the bearing seat 305 and the bearing. The rotating rod 304 extends into the interior of the movable cover 106 through the rotating hole.

[0038] Please refer to this carefully. Figure 1 , 2 4. The cross-section of the movable pressure plate 201 is arc-shaped, and the rotation angle of the movable pressure plate 201 with the movable hole 105 as the base point is 0°-10°.

[0039] Please refer to this carefully. Figure 1 , 2 3. The top of the movable rod 202 has an arc-shaped structure, and the movable rod 202 is movably connected to the longitudinal water pipe 102 through the movable hole 105.

[0040] Please refer to this carefully. Figure 1 , 2 4. Welding blocks are provided on both sides of the elastic element 204, and the elastic element 204 is welded to one side of the fixed block 203 and one side of the longitudinal water pipe 102 through the welding blocks respectively.

[0041] Please refer to this carefully. Figure 1 , 23 and 4, the longitudinal water pipe 102 is connected to the movable cover 106 through the rotating hole, and the top of the rotating rod 304 is connected to the bottom of the cooling water pipe 1.

[0042] Please refer to this carefully. Figure 1 , 2 The pressure-reducing method of the cooling water outlet device at the upper part of the sector 0 segment specifically includes the following steps:

[0043] Step 1: Cooling water is introduced into the interior of cooling water pipe 1 through connecting pipe 104, and then into the interior of longitudinal water pipe 102 through cooling water pipe 1, and is sprayed out through the nozzle at the bottom of longitudinal water pipe 102.

[0044] Step two: Each group of longitudinal water pipes 102 can be individually controlled using the second solenoid valve 103. Thus, the main equipment controller can be used to electrically control each group of second solenoid valves 103. The opening time and number of each second solenoid valve 103 can be set sequentially. When the number of second solenoid valves 103 that are open is large, the impact force of the cooling water flow through each group of longitudinal water pipes 102 is reduced. Then, when passing through the movable pressure plate 201, the space reserved between the movable pressure plate 201 and the longitudinal water pipes 102 is reduced, so that the passing cooling water flow is squeezed by the smaller orifice, and the impact force of the passing cooling water flow is increased in advance.

[0045] Step 3: The pressurized cooling water is guided to the buffer plate 302 and impacts it. Simultaneously, the stressed buffer plate 302 directly exerts a pulling force on the torsion spring 306, causing it to deform and generate corresponding elastic potential energy. This causes the stressed torsion spring 306 to exert a reverse elastic resistance force on the buffer plate 302. This reverse resistance force directly acts on the passing cooling water flow, thus buffering the flow and reducing its impact force. This ensures that the water pressure from each set of longitudinal water pipes 102 is consistent, thereby achieving a better pressure regulation effect.

[0046] Step four: When the number of second solenoid valves 103 that are opened decreases, the water flow is also pressed by the movable pressure plate 201. At the same time, due to the smaller orifice, the pressure of the water flow with a large impact force can be slowed down during the slowing down phase. Then, the water flow is slowed down again by the buffer plate 302. This makes the cooling water pressure from which the longitudinal water pipe 102 is led out stable, so that the impact force of the sprayed water flow is consistent. This avoids the impact of large or small water pressure on the product, thereby improving the utilization rate.

[0047] Step 5: After use, the first solenoid valve 101 can be opened to drain the excess water from the cooling water pipe 1, making it easier for subsequent maintenance operations.

[0048] The working principle of this invention is as follows: During use, cooling water is introduced into the interior of cooling water pipe 1 through connecting pipe 104, and then into the interior of longitudinal water pipe 102 through cooling water pipe 1. It is then sprayed out through the nozzle at the bottom of longitudinal water pipe 102. Simultaneously, each group of longitudinal water pipes 102 can be individually controlled using second solenoid valves 103. This allows direct electrical control of each group of second solenoid valves 103 using the overall equipment controller. The opening time and number of each second solenoid valve 103 can be set sequentially. When a large number of second solenoid valves 103 are open, the impact force of the cooling water flow through each group of longitudinal water pipes 102 decreases. Then, when passing through the movable pressure plate 201, the space between the movable pressure plate 201 and the longitudinal water pipe 102 is reduced, causing the cooling water flow to be squeezed by the smaller orifice, thus pre-increasing the impact force of the cooling water flow. The pressurized cooling water flow is then guided to the buffer plate 302, impacting the buffer plate 302. Simultaneously, the buffer plate... 302 directly generates a pulling force on the torsion spring 306, causing it to deform and generate corresponding elastic potential energy. This allows the torsion spring 306 to generate a reverse elastic resistance force against the buffer plate 302 after being stressed. This reverse resistance force directly acts on the passing cooling water flow, thus buffering the flow and reducing its impact force. This ensures that the water pressure output from each set of longitudinal water pipes 102 is consistent, thereby improving the pressure regulation effect. When the number of second solenoid valves 103 that are open decreases, the water flow is also pressured by the movable pressure plate 201. Simultaneously, due to the smaller orifice, the pressure reduction phase can alleviate the pressure of water with a large impact force. Then, the water flow is pressured again by the buffer plate 302, ensuring that the cooling water pressure output from each set of longitudinal water pipes 102 is stable. This ensures that the impact force of the sprayed water is consistent, avoiding the impact of large or small water pressure on the product and improving the utilization rate.

[0049] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fan-shaped upper cooling water outlet device, characterized in that, include: Cooling water pipe (1) is used to drain cooling water; The pressure assembly (2) is used to press the cooled water through the pressure assembly; Buffer component (3) is used to depressurize the passing cooling water; A connecting pipe (104) is provided on one side of the cooling water pipe (1). A first solenoid valve (101) extending into the top of the cooling water pipe (1) away from the connecting pipe (104) is installed thereon. Multiple sets of longitudinal water pipes (102) are evenly arranged at the bottom of the cooling water pipe (1). A second solenoid valve (103) extending into the top of one side of the longitudinal water pipe (102) is installed thereon. A movable hole (105) and a connecting hole are sequentially provided at the top and bottom of one side of the longitudinal water pipe (102) and below the second solenoid valve (103). A movable cover (106) is provided at the bottom of one side of the longitudinal water pipe (102). The pressure assembly (2) includes a movable pressure plate (201). The top of the movable pressure plate (201) is provided with a connecting cover extending into the longitudinal water pipe. The movable rod (202) on one side of the pipe (102) is provided with a fixed block (203) at the bottom of the movable rod (202). The fixed block (203) is provided with an elastic element (204) on the side of the fixed block (203) near the longitudinal water pipe (102). The buffer assembly (3) includes a rotating shaft (301). A rotating rod (304) extending into the interior of the movable cover (106) is provided on one side of the rotating shaft (301). Torsion springs (306) are provided on the outside of the rotating rod (304) and inside the movable cover (106). Buffer plates (302) are provided at the four corners outside the rotating shaft (301). Buffer grooves (303) are provided on the end face of the buffer plates (302). The rotating rod (304) is rotatably connected to one side inside the movable cover (106). A bearing seat (305) is provided on one side of the rotating rod (304). The rotating rod (304) is rotatably connected to one side of the interior of the movable cover (106) through the mutual cooperation of the bearing seat (305) and the bearing. The rotating rod (304) extends into the interior of the movable cover (106) through the rotating hole. The cross-section of the movable pressure plate (201) is arc-shaped, and the rotation angle of the movable pressure plate (201) with the movable hole (105) as the base point is 0°-10°. The top of the movable rod (202) has an arc-shaped structure, and the movable rod (202) is movably connected to the longitudinal water pipe (102) through the movable hole (105); Welding blocks are provided on both sides of the elastic element (204), and the elastic element (204) is welded to one side of the fixed block (203) and one side of the longitudinal water pipe (102) through the welding blocks respectively. The longitudinal water pipe (102) is connected to the movable cover (106) through the rotating hole, and the top of the rotating rod (304) is connected to the bottom of the cooling water pipe (1).

2. A method for depressurizing the cooling water outlet device at the upper part of the fan-shaped 0-segment according to claim 1, characterized in that, The pressure relief method for the upper cooling water outlet device of the sector-shaped 0-segment specifically includes the following steps: Step 1: Cooling water is introduced into the interior of cooling water pipe (1) through connecting pipe (104), and then into the interior of longitudinal water pipe (102) through cooling water pipe (1), and sprayed out through the nozzle at the bottom of longitudinal water pipe (102); Step 2: Each group of longitudinal water pipes (102) is individually controlled by the second solenoid valve (103), thereby directly using the overall equipment controller to electrically control each group of second solenoid valves (103), and sequentially setting the opening time and number of each second solenoid valve (103). When the number of second solenoid valves (103) that are opened is large, the impact force of the cooling water flow through each group of longitudinal water pipes (102) is reduced. Then, when passing through the movable pressure plate (201), the space reserved between the movable pressure plate (201) and the longitudinal water pipe (102) is reduced, thereby causing the passing cooling water flow to be squeezed by the smaller orifice, and the impact force of the passing cooling water flow is increased in advance. Step 3: The pressurized cooling water is guided to the buffer plate (302) and impacts the buffer plate (302). At the same time, the buffer plate (302) under force will directly generate a pulling force on the torsion spring (306), causing it to deform under force and generate corresponding elastic potential energy. As a result, the torsion spring (306) under force will generate a reverse elastic resistance force on the buffer plate (302). This reverse resistance force will directly act on the passing cooling water flow, thereby buffering the passing cooling water flow and slowing down the impact force of the passing water flow. This makes the water flow pressure from each set of longitudinal water pipes (102) consistent, thus achieving a better pressure regulation effect. Step four: When the number of second solenoid valves (103) that are opened decreases, the water flow is also pressed by the movable pressure plate (201). At the same time, due to the smaller orifice, the water flow with greater impact force is slowed down during the slowing down stage. Then, the water flow is slowed down again by the buffer plate (302). This makes the cooling water pressure from whichever set of longitudinal water pipes (102) is output stable, so that the impact force of the sprayed water flow is consistent. This avoids the impact of large or small water pressure on the product, thereby improving the utilization rate. Step 5: After use, open the first solenoid valve (101) to drain the excess water from the cooling water pipe (1) for subsequent maintenance.

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