Casting and rolling machine launder liquid level flow stabilizing device and method

Abstract

The invention discloses a casting and rolling machine launder liquid level flow stabilizing device and method, and relates to the technical field of casting and rolling, the casting and rolling machine launder liquid level flow stabilizing device comprises a buffer tank, an energy dissipation flow stabilizing assembly, a flow adjusting assembly and a self-control assembly; a flow limiting assembly, an energy dissipation flow stabilizing assembly and a flow adjusting assembly are installed on the inner side of the buffering groove. An automatic control assembly, a flow dynamic adjusting assembly, a liquid level detection unit and an inclined flow stabilizing assembly are installed on the flow adjusting assembly. The flow limiting assembly comprises a baffle, a mounting groove, a flow adjusting plate, a flow outlet, a first gear, a first rack and a hydraulic machine, the baffle is fixedly connected to the front end of the inner side of the buffer groove, and the mounting groove is formed in the upper end of the baffle. The cold shut defect caused by uneven temperature can be prevented, clamping stagnation and failure of the floater can be prevented through the active control device, and meanwhile a liquid level monitoring device is arranged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of casting and rolling technology, in particular to a casting and rolling machine flow tank liquid level stabilizing device and method. BACKGROUND

[0002] The rolling mill is a device for realizing the metal rolling process, and generally refers to the equipment for completing the whole process of rolling production. The rolling mill mainly consists of a roller, a rack, a roll gap adjusting device, a roll temperature adjusting device, a transmission device, a lubrication system, a control system, and a roll dismounting device. In addition to the main parts and devices of the ordinary rolling mill, the precision calender also increases devices for ensuring the precision of the calender. The main purpose is to extrude the fixed metal into a thin sheet through the rolling mill. This processing method is commonly used for processing metal strips and profiles. Among them, the authorized announcement number CN222344150U proposes a casting and rolling machine flow tank liquid level stabilizing device, which includes a flow guide tank, and an adjusting mechanism for adjusting the liquid level height of the casting and rolling machine flow tank. A stabilizing device is provided on the adjusting mechanism to reduce the flow tank liquid level ripples. The existing technology only has a single energy dissipation structure, which cannot effectively stabilize the liquid level. The metal liquid inside the device may cause cold separation defects due to uneven temperature. The single float type liquid level detection and control flow is prone to jamming, resulting in control failure. There is no liquid level monitoring device. Therefore, we propose a casting and rolling machine flow tank liquid level stabilizing device and method. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the existing defects and provide a casting and rolling machine flow tank liquid level stabilizing device and method. The design of the multi-stage energy dissipation structure effectively stabilizes the liquid level and prevents cold separation defects caused by uneven temperature. The active control device can prevent the float from jamming and failing. At the same time, the liquid level monitoring device is provided. Therefore, we propose a casting and rolling machine flow tank liquid level stabilizing device and method, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a casting and rolling machine flow tank liquid level stabilizing device and method, comprising a buffer tank, an energy dissipation and flow stabilizing assembly, a flow adjusting assembly, and a self-control assembly. Buffer tank: the inner side is provided with a flow limiting assembly, an energy dissipation and flow stabilizing assembly, and a flow adjusting assembly. The flow adjusting assembly is provided with a self-control assembly, a flow dynamic adjusting assembly, a liquid level detection unit, and an inclined flow stabilizing assembly. The flow limiting assembly comprises a baffle, a mounting groove, a flow regulating plate, an outflow port, a gear one, a rack one and a hydraulic machine. The inner side of the front end of the buffer groove is fixedly connected with the baffle. The upper end of the baffle is provided with the mounting groove. The rear end of the baffle is rotatably connected with the flow regulating plate. The rear end of the mounting groove is fixedly connected with a plurality of circular through holes. The lower end of the baffle is provided with the outflow port. The rear end of the flow regulating plate is fixedly connected with the gear one. The inner side of the right end of the mounting groove is fixedly connected with the hydraulic machine. The movable end of the hydraulic machine is fixedly connected with the rear end of the rack one. The left end of the rack one is slidably connected with the inner side of the left end of the mounting groove. The rack one is engaged with the gear one. The buffer groove controls the initial flow rate of the molten metal through the baffle and the flow regulating plate of the flow limiting assembly.

[0005] Further, the energy dissipation and flow stabilizing assembly comprises an arc plate, a bidirectional threaded rod, a sliding rod, a mounting plate one, a wavy wall plate, a sliding groove one, a grid one and a rectangular through hole. The inner side of the upper end of the buffer groove is fixedly connected with the arc plate. The upper end of the buffer groove is fixedly connected with the sliding rod. The upper end of the buffer groove is rotatably connected with the bidirectional threaded rod. The mounting plate one has two ends. Each end of the mounting plate one is slidably connected with the sliding rod. The other end of each mounting plate one is threadedly connected with the bidirectional threaded rod. The lower end of the mounting plate one is fixedly connected with the wavy wall plate. The inner side of the rear part of the arc plate is fixedly connected with the sliding groove one. The grid one is slidably connected with the inner side of the sliding groove one. The grid one is fixedly connected with the buffer groove through bolts. The front end of the grid one is provided with a plurality of rectangular through holes. The adjustable wavy wall plate and the grid combination dissipate energy, and adapt to different flow rate working conditions.

[0006] Further, the temperature detection device and the heating plate are further included. The lower end of the buffer groove is fixedly connected with the temperature detection device. The probe of the temperature detection device is arranged on the inner side of the buffer groove. The left and right sides of the buffer groove are correspondingly fixedly connected with the heating plate. The solidification of the molten metal or the uneven temperature is prevented. Precise temperature control ensures the flowability of the molten metal, and reduces cold shut defects.

[0007] Further, the flow regulating assembly comprises a flow guide groove, a limiting plate, a connecting rod one, a mounting plate two, a conical flow blocking head, a communication pipe and a limiting column. The lower front side of the flow guide groove is communicated with one end of the communication pipe. The other end of the communication pipe is communicated with the lower front side of the buffer groove. The inner side of the front end of the flow guide groove is fixedly connected with the limiting plate. The upper end of the conical flow blocking head is fixedly connected with the mounting plate two. The upper end of the mounting plate two is fixedly connected with the connecting rod one. The upper end of the mounting plate two is correspondingly fixedly connected with the limiting column. The connecting rod one and the limiting column are slidably connected with the limiting plate. The opening of the conical flow blocking head is adjusted to realize flow control.

[0008] Further, the self-control assembly comprises a rack two, a gear two, a motor one and a mounting plate three, the upper end of the left limiting column is fixedly connected with the rack two, the front side of the upper end of the flow guide groove is rotatably connected with the gear two, the gear two is engaged with the rack two, the front end of the upper side of the flow guide groove is fixedly connected with the motor one, the output shaft of the motor one is fixedly connected with the gear two, the motor one drives the gear two to engage with the rack two, thereby realizing flow control.

[0009] Further, the flow dynamic adjustment assembly comprises a sliding frame, a rotating shaft one, a connecting rod two, a rotating shaft two and a rectangular float, the upper end of the connecting rod one is fixedly connected with the sliding frame, the middle part of the inner side of the flow guide groove is rotatably connected with the rotating shaft one, the middle part of the rotating shaft one is fixedly connected with the connecting rod two, the front side of the upper end of the connecting rod two is slidably connected with the inner side of the sliding frame, the upper end of the rectangular float is fixedly connected with the rotating shaft two, the rear end of the lower side of the connecting rod two is rotatably connected with the rotating shaft two, the float real-time feedbacks liquid level change, and the flow is self-adaptively adjusted.

[0010] Further, the liquid level detection unit comprises a limiting sliding frame and a grid two, the middle part of the upper end of the flow guide groove is fixedly connected with the limiting sliding frame, the inner side of the limiting sliding frame is slidably connected with the grid two, the inner side of the limiting sliding frame is slidably connected with the grid two, and the grid two is fixedly connected with the flow guide groove through bolts, the grid structure is used to stabilize the local liquid level, reduce the fluctuation interference detection accuracy, and the double limiting structure ensures that the flow state in the detection area is stable.

[0011] Further, the liquid level detection unit further comprises an ultrasonic range finder, a pressure sensor fixing frame, a pressure sensor, a limiting seat, a limiting sliding rod and a float, the upper end of the flow guide groove is fixedly connected with the ultrasonic range finder, the middle part of the right side of the upper end of the flow guide groove is fixedly connected with the pressure sensor fixing frame, the upper end of the pressure sensor fixing frame is fixedly connected with the pressure sensor, the inner side of the right end of the upper side of the flow guide groove is fixedly connected with the limiting seat, the inner side of the limiting seat is slidably connected with the limiting sliding rod, the lower end of the limiting sliding rod is fixedly connected with the float, and the upper end of the limiting sliding rod is fixedly connected with the lower end of the pressure sensor, thereby realizing redundant detection of the liquid level, and multi-sensor fusion improves the reliability of liquid level control.

[0012] Further, the inclined stable flow assembly comprises an inclined plate, a rectangular grid, a worm wheel, a support plate, a worm and a motor two, the inner side upper end of the flow guide groove is rotationally connected with the upper side of the rectangular grid, the inner side of the inclined plate is fixedly connected with a plurality of inclined rectangular grids, the left end of the inclined plate is fixedly connected with a worm wheel, the left end of the flow guide groove is fixedly connected with two support plates, the support plates are rotationally connected with a worm, the worm cooperates with the worm wheel, the left end of the flow guide groove is fixedly connected with a motor two, the output shaft of the motor two is fixedly connected with the worm, the water ripples on the surface of the aluminum liquid are reduced, the stability of the subsequent water surface is ensured, the self-locking characteristics of the worm wheel and the worm keep the inclination angle stable, and secondary disturbance is reduced.

[0013] A stable flow method of a flow tank liquid level stabilizing device of a casting rolling mill, comprising the following steps: S1: The buffer tank controls the initial flow rate of the metal liquid through the baffle and the flow adjusting plate of the flow limiting assembly, the hydraulic machine drives rack one to rotate, linkage flow adjusting plate adjusts the opening degree of the outlet, the wave wall plate and the grid one of the energy dissipation stabilizing assembly are dispersed through the rectangular through hole, the turbulent flow is reduced, the flow adjusting assembly dynamically balances the liquid level through the tapered flow blocking head and the communication pipe, the self-control assembly links the motor one driven gear two based on the data of the liquid level detection unit, realizes closed loop regulation, makes the metal liquid flowing produce flow and vortex, at the same time, collides and rubs with it, achieves the purpose of energy dissipation, further reduces the flow rate of the metal liquid, multi-stage collaborative control liquid level fluctuation, improves the casting and rolling stability.

[0014] S2: After the metal liquid flows out from the outlet, the metal liquid is symmetrically divided into two directions through the arc-shaped plate, the metal liquid eliminates part of the energy and slows down the flow rate, the metal liquid flows through the two wave wall plates, so that the metal liquid flowing produces flow and vortex, at the same time, collides and rubs with it, achieves the purpose of energy dissipation, further reduces the flow rate of the metal liquid, the bidirectional threaded rod rotates to drive the mounting plate one to slide along the sliding rod, drives the wave wall plate to adjust the spacing, then reduces the flow rate through the rectangular through hole on the grid one to flow smoothly, the metal liquid gradually slows down through the rectangular through hole, reduces the impact force, the adjustable wave wall plate and the grid combination energy dissipation adapt to different flow rate working conditions. The probe of the temperature detection device monitors the temperature of the metal liquid in the buffer tank in real time, heats or keeps warm through the electric signal control of the heating plate, prevents the solidification or uneven temperature of the metal liquid, accurate temperature control ensures the liquidity of the metal liquid, reduces the cold shut defect.

[0015] S3: The motor of the self-control assembly drives the gear II to mesh with the rack II, drives the limiting column to lift, thereby adjusting the opening of the conical flow blocking head, realizing automatic control of the flow, the gear and the rack transmission has high precision and fast response speed, the rectangular float of the flow dynamic adjustment assembly rotates with the liquid level, drives the sliding frame through the connecting rod II and the rotating shaft I, drives the connecting rod I to adjust the position of the conical flow blocking head, the float real-time feedback liquid level change, self-adapting flow adjustment.

[0016] S4: The grid II of the liquid level detection unit is fixed in the flow guide groove through the limiting sliding frame, uses the grid structure to stabilize the local liquid level, reduces the fluctuation interference detection precision, the double limiting structure ensures the stability of the detection area flow state, the ultrasonic range finder and the float synchronously monitor the liquid level height, the float triggers the pressure sensor to generate a signal through the limiting sliding rod, combines the limiting seat to constrain the sliding range, realizes redundant detection, and the water surface fluctuation, multi-sensor fusion improves the reliability of liquid level control.

[0017] S5: The motor II of the inclined flow stabilizing assembly drives the worm to mesh with the worm gear, drives the inclined plate and the rectangular grid bar to adjust the inclination, the metal liquid passes through the grid bar to disperse kinetic energy, and whether the inclined plate is provided with the rectangular grid bar can be determined according to the situation, the water ripples generated by the liquid surface impact on the inclined plate, thereby reducing the generation of water ripples on the aluminum liquid surface, ensuring the stability of the subsequent water surface, the worm and worm gear self-locking characteristics keep the inclination stable, and reduce secondary disturbance.

[0018] Compared with the prior art, the beneficial effects of the present application are that the casting and rolling machine flow tank liquid level stabilizing device and method have the following advantages: 1. The casting and rolling machine flow tank liquid level stabilizing device and method, the mechanical throttling of the flow limiting assembly, the turbulent energy dissipation of the wave wall plate, the dynamic float compensation and the gradient flow stabilization of the inclined grid bar form a four-level cooperation of a composite energy dissipation system, and the flow velocity fluctuation is significantly reduced.

[0019] 2. The casting and rolling machine flow tank liquid level stabilizing device and method, the temperature detection device and the heating plate monitor and control, real-time adjustment of the melt temperature to stabilize the viscosity, solve the cold separation defects caused by uneven temperature of the device, and the compared patent does not involve temperature control.

[0020] 3. The flow stabilizer and method for the flow channel of the casting and rolling machine, which adopts ultrasonic range finder and float double-mode liquid level detection, and through the meshing of the motor one driving gear two and the rack two of the self-control assembly, the opening of the tapered flow blocking head can be actively adjusted, the flow control is realized, through the linkage flow dynamic adjustment assembly, active control can be carried out according to the needs, the ultrasonic range finder and the float synchronously monitor the liquid level height, the float triggers the pressure sensor to generate a signal for monitoring the liquid level through the limiting sliding rod. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the application; Figure 2 It is a structural schematic diagram of the application; Figure 1 It is a structural schematic diagram of the application; Figure 3 It is a structural schematic diagram of the application; Figure 1 It is a structural schematic diagram of the application; Figure 4 It is a structural schematic diagram of the application; Figure 1 It is a structural schematic diagram of the application; Figure 5 It is a structural schematic diagram of the application; Figure 6 It is a structural schematic diagram of the application; Figure 5 It is a structural schematic diagram of the application; Figure 7 It is a structural schematic diagram of the application; Figure 8 It is a structural schematic diagram of the application; Figure 7 It is a structural schematic diagram of the application.

[0022] In the figure: 1 buffer tank, 2 flow limiting assembly, 21 baffle, 22 mounting groove, 23 flow regulating plate, 24 outflow port, 25 gear one, 26 rack one, 27 hydraulic machine, 3 energy dissipation and flow stabilization assembly, 31 arc plate, 32 bidirectional threaded rod, 33 sliding rod, 34 mounting plate one, 35 wavy wall plate, 36 sliding groove one, 37 grid one, 38 rectangular through hole, 4 flow regulating assembly, 41 flow guide channel, 42 limiting plate, 43 connecting rod, 44 mounting plate two, 45 tapered flow blocking head, 46 communication pipe, 47 limiting column, 5 self-control assembly, 51 rack two, 52 gear two, 53 motor one, 54 mounting plate two, 6 flow dynamic adjustment assembly, 61 sliding frame, 62 rotating shaft one, 63 connecting rod, 64 rotating shaft two, 65 rectangular float, 7 liquid level detection unit, 71 limiting sliding frame, 72 grid two, 73 ultrasonic range finder, 74 pressure sensor fixing frame, 75 pressure sensor, 76 limiting seat, 77 limiting sliding rod, 78 float, 8 inclined flow stabilization assembly, 81 inclined plate, 82 rectangular grid strip, 83 worm gear, 84 support plate, 85 worm, 86 motor two, 9 temperature detection device, 10 heating plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] Please refer to Figures 1-8 The present embodiment provides a technical solution: a flow tank liquid level stabilizing device for a casting and rolling mill, comprising a buffer tank 1, an energy dissipation and flow stabilizing assembly 3, a flow adjusting assembly 4, and a self-control assembly 5. The buffer tank 1: the inner side is provided with a flow limiting assembly 2, an energy dissipation and flow stabilizing assembly 3, and a flow adjusting assembly 4, and the flow adjusting assembly 4 is provided with a self-control assembly 5, a flow dynamic adjusting assembly 6, a liquid level detecting unit 7, and an inclined flow stabilizing assembly 8. The flow limiting assembly 2: comprising a baffle 21, a mounting groove 22, a flow adjusting plate 23, an outflow port 24, a gear one 25, a rack one 26, and a hydraulic machine 27, the inner side of the buffer tank 1 is fixedly connected with the baffle 21 at the front end, the upper end of the baffle 21 is provided with the mounting groove 22, the rear end of the baffle 21 is rotatably connected with the flow adjusting plate 23 at the middle part, the rear end of the mounting groove 22 is fixedly connected with a plurality of circular through holes, the lower end of the baffle 21 is provided with the outflow port 24 at the middle part, the rear end of the flow adjusting plate 23 is fixedly connected with the gear one 25, the inner side right end of the mounting groove 22 is fixedly connected with the hydraulic machine 27, the movable end of the hydraulic machine 27 is fixedly connected with the rear end of the rack one 26, the left end of the rack one 26 is slidingly connected with the inner side left end of the mounting groove 22, and the rack one 26 is engaged with the gear one 25. The buffer tank 1 controls the initial flow rate of the metal liquid through the baffle 21 and the flow adjusting plate 23 of the flow limiting assembly 2.

[0025] The energy dissipation and flow stabilizing assembly 3: comprising an arc plate 31, a bidirectional threaded rod 32, a sliding rod 33, a mounting plate one 34, a wavy wall plate 35, a sliding groove one 36, a grid one 37, and a rectangular through hole 38, the inner side upper end front side middle part of the buffer tank 1 is fixedly connected with the arc plate 31, the upper end of the buffer tank 1 is fixedly connected with the sliding rod 33, the upper end middle part of the buffer tank 1 is rotatably connected with the bidirectional threaded rod 32, the mounting plate one 34 has two, one end of each mounting plate one 34 is slidingly connected with the sliding rod 33, the other end of each mounting plate one 34 is threadedly connected with the bidirectional threaded rod 32, the lower end of the mounting plate one 34 is fixedly connected with the wavy wall plate 35, the inner side rear part of the arc plate 31 is fixedly connected with the sliding groove one 36 on the left and right, the grid one 37 is slidingly connected with the inner side of the sliding groove one 36, the grid one 37 is fixedly connected with the buffer tank 1 through bolts, and the front end of the grid one 37 is provided with a plurality of rectangular through holes 38. The adjustable wavy wall plate and the grid combination energy dissipation adapt to different flow rate working conditions.

[0026] Also include temperature detection device 9 and heating plate 10, the lower end of the buffer tank 1 is fixedly connected with temperature detection device 9, the probe of temperature detection device 9 is arranged inside the buffer tank 1, the left and right of the buffer tank 1 correspondingly fixedly connected with heating plate 10. Prevent solidification or temperature unevenness of the metal liquid, accurate temperature control ensures the liquidity of the metal liquid, reduces the cold separation defect.

[0027] Flow regulating assembly 4 includes flow guide groove 41, limiting plate 42, connecting rod 43, mounting plate 44, tapered flow blocking head 45, communication pipe 46 and limiting column 47, the lower end of the flow guide groove 41 is communicated with one end of the communication pipe 46, the other end of the communication pipe 46 is communicated with the lower end of the buffer tank 1, the inner side of the flow guide groove 41 is fixedly connected with the limiting plate 42, the upper end of the tapered flow blocking head 45 is fixedly connected with the mounting plate 44, the upper end of the mounting plate 44 is fixedly connected with the connecting rod 43, the upper end of the mounting plate 44 is fixedly connected with the limiting column 47, the connecting rod 43 and the limiting column 47 are slidably connected with the limiting plate 42, the opening of the tapered flow blocking head 45 is adjusted to realize flow control.

[0028] Self-control assembly 5 includes rack 51, gear 52, motor 53 and mounting plate 54, the upper end of the left limiting column 47 is fixedly connected with the rack 51, the upper end of the flow guide groove 41 is rotatably connected with the gear 52, the gear 52 is engaged with the rack 51, the upper end of the flow guide groove 41 is fixedly connected with the motor 53, the output shaft of the motor 53 is fixedly connected with the gear 52, the motor 53 drives the gear 52 to engage with the rack 51 to realize flow control.

[0029] Flow dynamic adjusting assembly 6 includes sliding frame 61, rotating shaft 62, connecting rod 63, rotating shaft 64 and rectangular float 65, the upper end of the connecting rod 43 is fixedly connected with the sliding frame 61, the middle part of the inner side of the flow guide groove 41 is rotatably connected with the rotating shaft 62, the middle part of the rotating shaft 62 is fixedly connected with the connecting rod 63, the front upper end of the connecting rod 63 is slidably connected with the inner side of the sliding frame 61, the upper end of the rectangular float 65 is fixedly connected with the rotating shaft 64, the rear lower side of the connecting rod 63 is rotatably connected with the rotating shaft 64, the float real-time feedback liquid level change, self-adaptive flow adjustment.

[0030] Liquid level detection unit 7 includes limiting sliding frame 71 and grid 72, the middle part of the upper end of the flow guide groove 41 is fixedly connected with the limiting sliding frame 71, the limiting sliding frame 71 is slidably connected with the grid 72, the inner side of the limiting sliding frame 71 is slidably connected with the grid 72, the grid 72 is fixedly connected with the flow guide groove 41 through bolts, the local liquid level is stabilized by using the grid structure, the detection accuracy is reduced by reducing the fluctuation interference, and the flow state in the detection area is stable by the double limiting structure.

[0031] The liquid level detection unit 7 further comprises an ultrasonic range finder 73, a pressure sensor fixing frame 74, a pressure sensor 75, a limiting seat 76, a limiting sliding rod 77 and a float 78, the upper end of the flow guide groove 41 is fixedly connected with the ultrasonic range finder 73, the upper end of the right side middle part of the flow guide groove 41 is fixedly connected with the pressure sensor fixing frame 74, the upper end of the pressure sensor fixing frame 74 is fixedly connected with the pressure sensor 75, the inner side upper side of the right end of the flow guide groove 41 is fixedly connected with the limiting seat 76, the inner side of the limiting seat 76 is slidingly connected with the limiting sliding rod 77, the lower end of the limiting sliding rod 77 is fixedly connected with the float 78, and the upper end of the limiting sliding rod 77 is fixedly connected with the lower end of the pressure sensor 75, so as to realize redundant detection of the liquid level and improve the liquid level control reliability through multi-sensor fusion.

[0032] The inclined flow stabilizing assembly 8 comprises an inclined plate 81, a rectangular grid 82, a worm wheel 83, a support plate 84, a worm 85 and a motor two 86, the inner side rear end upper side of the flow guide groove 41 is rotationally connected with the upper side of the rectangular grid 82, the inner side of the inclined plate 81 is fixedly connected with a plurality of inclined rectangular grids 82, the left end of the inclined plate 81 is fixedly connected with the worm wheel 83, the left end of the flow guide groove 41 is fixedly connected with two support plates 84, the worm 85 is rotationally connected between the support plates 84, the worm 85 cooperates with the worm wheel 83, the left end of the flow guide groove 41 is fixedly connected with the motor two 86, and the output shaft of the motor two 86 is fixedly connected with the worm 85, so as to reduce the water ripples on the surface of the aluminum liquid, ensure the stability of the subsequent water surface, keep the inclination stable through the self-locking characteristics of the worm wheel and the worm, and reduce secondary disturbance.

[0033] A flow stabilizing method of a flow tank liquid level stabilizing device of a casting rolling mill, comprising the following steps: S1: The buffer tank 1 controls the initial flow rate of the metal liquid through the baffle 21 and the flow rate adjusting plate 23 of the flow limiting assembly 2, the hydraulic machine 27 drives the rack one 26 to rotate the gear one 25, the linkage flow rate adjusting plate 23 adjusts the opening degree of the outflow port 24, the wave wall plate 35 and the grid one 37 of the energy dissipation stabilizing assembly 3 disperse the kinetic energy of the metal liquid through the rectangular through hole 38, reduce the turbulent flow, the flow rate adjusting assembly 4 dynamically balances the liquid level through the conical flow blocking head 45 and the communicating pipe 46, the automatic control assembly 5 links the motor one 53 to drive the gear two 52 based on the data of the liquid level detection unit 7, realizes closed-loop regulation, makes the metal liquid flowing produce flow splitting and vortex, at the same time collides and rubs with it, achieves the purpose of energy dissipation, further reduces the flow rate of the metal liquid, multi-stage cooperative control of the liquid level fluctuation improves the casting and rolling stability.

[0034] S2: After the metal liquid flows out of the outlet 24, it is symmetrically divided into two directions by the arc-shaped plate 31. The metal liquid eliminates part of the energy and slows down the flow rate. The metal liquid flows through the two wave wall plates 35, causing the metal liquid flowing through to produce flow and vortex, and at the same time colliding and rubbing with it, achieving the purpose of energy dissipation, further reducing the flow rate of the metal liquid. The bidirectional threaded rod 32 rotates to drive the mounting plate one 34 to slide along the sliding rod 33, driving the wave wall plate 35 to adjust the spacing, and then lowering the flow rate through the rectangular through hole 38 on the grid one 37 to flow smoothly. The metal liquid gradually reduces the speed through the rectangular through hole 38, reduces the impact force, and the adjustable wave wall plate and the grid combination energy dissipation adapt to different flow rate working conditions. The probe of the temperature detection device 9 monitors the temperature of the metal liquid in the buffer tank 1 in real time, controls the heating plate 10 to heat or keep warm through the electric signal, prevents the metal liquid from solidifying or the temperature from being uneven, and accurately controls the temperature to ensure the liquidity of the metal liquid and reduce cold shut defects.

[0035] S3: The motor one 53 of the self-control assembly 5 drives the gear two 52 to mesh with the rack two 51, drives the limiting column 47 to rise and fall, thereby adjusting the opening of the tapered flow blocking head 45, realizing automatic control of the flow rate. The gear and rack transmission has high precision and fast response speed. The rectangular float 65 of the flow dynamic adjustment assembly 6 rotates with the liquid level, drives the rotating shaft two 64 to rotate, drives the sliding frame 61 through the connecting rod two 63 and the rotating shaft one 62 linkage, drives the connecting rod one 43 to adjust the position of the tapered flow blocking head 45, and the float feeds back the liquid level change in real time, and adjusts the flow rate adaptively.

[0036] S4: The grid two 72 of the liquid level detection unit 7 is fixed in the flow guide groove 41 through the limiting sliding frame 71, uses the grid structure to stabilize the local liquid level, reduces the fluctuation interference detection accuracy, and ensures the detection area flow state stability through the double limiting structure. The ultrasonic range finder 73 and the float 78 synchronously monitor the liquid level height. The float 78 triggers the pressure sensor 75 to generate a signal through the limiting sliding rod 77, and the limiting seat 76 restricts the sliding range, realizes redundant detection, and the water surface fluctuation. Multi-sensor fusion improves the reliability of liquid level control.

[0037] S5: The motor two 86 of the inclined flow stabilizing assembly 8 drives the worm 85 to mesh with the worm gear 83, drives the inclined plate 81 and the rectangular grid bar 82 to adjust the inclination, and the metal liquid flows through the grid bar to disperse kinetic energy. At the same time, it can be decided whether to set the rectangular grid bar 82 on the inclined plate 81 according to the situation. The water ripples generated by the liquid surface collide on the inclined plate 81, thereby reducing the water ripples on the surface of the aluminum liquid, ensuring the stability of the subsequent water surface, and the self-locking characteristic of the worm and worm gear keeps the inclination stable, reducing secondary disturbance.

[0038] It is worth noting that the hydraulic machine 27, motor 53, ultrasonic range finder 73, motor 86 and heating plate 10 input terminals are electrically connected to the output terminals of the external PLC controller, the pressure sensor 75 and temperature detection device 9 output terminals are electrically connected to the external PLC controller, the motor 53 and motor 86 are both servo motors, and the external PLC controller controls the hydraulic machine 27, motor 53, ultrasonic range finder 73, motor 86 and heating plate 10 using the method commonly used in the prior art.

[0039] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. A flow stabilizing device for a flow channel of a casting mill, characterized by: It includes buffer tank (1), energy dissipation and flow stabilization assembly (3), flow regulation assembly (4) and automatic control assembly (5). Buffer tank (1): the inside is provided with flow limiting assembly (2), energy dissipation and flow stabilization assembly (3) and flow regulation assembly (4), the flow regulation assembly (4) is provided with automatic control assembly (5), flow dynamic regulation assembly (6), liquid level detection unit (7) and tilt flow stabilization assembly (8). Flow limiting assembly (2): it comprises baffle (21), installation groove (22), flow regulation plate (23), outflow port (24), gear one (25), rack one (26) and hydraulic machine (27), the inner side of the front end of the buffer tank (1) is fixedly connected with the baffle (21), the upper end of the baffle (21) is provided with the installation groove (22), the rear end of the baffle (21) is rotatably connected with the flow regulation plate (23), the rear end of the installation groove (22) is fixedly connected with a plurality of circular through holes, the lower end of the baffle (21) is provided with the outflow port (24), the rear end of the flow regulation plate (23) is fixedly connected with the gear one (25), the inner side of the right end of the installation groove (22) is fixedly connected with the hydraulic machine (27), the movable end of the hydraulic machine (27) is fixedly connected with the rear end of the rack one (26), the left end of the rack one (26) is slidably connected with the inner side of the left end of the installation groove (22), the rack one (26) is engaged with the gear one (25).

2. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The energy dissipation and flow stabilization assembly (3) comprises arc plate (31), bidirectional threaded rod (32), sliding rod (33), mounting plate one (34), wave wall plate (35), sliding groove one (36), grid one (37) and rectangular through hole (38), the inner side of the upper end of the buffer tank (1) is fixedly connected with the arc plate (31), the upper end of the buffer tank (1) is fixedly connected with the sliding rod (33), the upper end of the buffer tank (1) is rotatably connected with the bidirectional threaded rod (32), the mounting plate one (34) has two, one end of each mounting plate one (34) is slidably connected with the sliding rod (33), the other end of each mounting plate one (34) is threadedly connected with the bidirectional threaded rod (32), the lower end of the mounting plate one (34) is fixedly connected with the wave wall plate (35), the inner side of the rear part of the arc plate (31) is fixedly connected with the sliding groove one (36) on the left and right, the grid one (37) is slidably connected with the inner side of the sliding groove one (36), the grid one (37) is fixedly connected with the buffer tank (1) through bolts, the front end of the grid one (37) is provided with a plurality of rectangular through holes (38).

3. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: It also comprises temperature detection device (9) and heating plate (10), the lower end of the buffer tank (1) is fixedly connected with the temperature detection device (9), the probe of the temperature detection device (9) is arranged in the inner side of the buffer tank (1), the left and right of the buffer tank (1) are fixedly connected with the heating plate (10).

4. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The flow regulating assembly (4) comprises a guide groove (41), a limiting plate (42), a connecting rod one (43), a mounting plate two (44), a tapered flow blocking head (45), a communication pipe (46) and a limiting column (47), the lower end front side of the guide groove (41) is communicated with one end of the communication pipe (46), the other end of the communication pipe (46) is communicated with the lower end front side of the buffer groove (1), the inner side front end upper side of the guide groove (41) is fixedly connected with the limiting plate (42), the upper end of the tapered flow blocking head (45) is fixedly connected with the mounting plate two (44), the upper end middle part of the mounting plate two (44) is fixedly connected with the connecting rod one (43), the upper end left and right corresponding fixedly connected limiting columns (47) of the mounting plate two (44), the connecting rod one (43) and the limiting column (47) are all slidingly connected with the limiting plate (42).

5. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The self-control assembly (5) comprises a rack two (51), a gear two (52), a motor one (53) and a mounting plate three (54), the upper end of the left limiting column (47) is fixedly connected with the rack two (51), the upper end front side of the guide groove (41) is rotatably connected with the gear two (52), the gear two (52) is engaged with the rack two (51), the front end upper side of the guide groove (41) is fixedly connected with the motor one (53), the output shaft of the motor one (53) is fixedly connected with the gear two (52).

6. A flow stabilizing device for a flow channel of a casting mill according to claim 1, characterized in that: The flow dynamic regulating assembly (6) comprises a sliding frame (61), a rotating shaft one (62), a connecting rod two (63), a rotating shaft two (64) and a rectangular float (65), the upper end of the connecting rod one (43) is fixedly connected with the sliding frame (61), the inner side middle part of the guide groove (41) is rotatably connected with the rotating shaft one (62), the middle part of the rotating shaft one (62) is fixedly connected with the connecting rod two (63), the front side upper end of the connecting rod two (63) is slidingly connected with the inner side of the sliding frame (61), the upper end of the rectangular float (65) is fixedly connected with the rotating shaft two (64), the rotating shaft two (64) is rotatably connected with the rear end lower side of the connecting rod two (63).

7. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The liquid level detection unit (7) comprises a limiting sliding frame (71) and a grid two (72), the upper end middle part of the guide groove (41) is fixedly connected with the limiting sliding frame (71), the inner side of the limiting sliding frame (71) is slidingly connected with the grid two (72), the inner side of the limiting sliding frame (71) is slidingly connected with the grid two (72), the grid two (72) is fixedly connected with the guide groove (41) through bolts.

8. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The liquid level detection unit (7) further comprises an ultrasonic range finder (73), a pressure sensor fixing frame (74), a pressure sensor (75), a limiting seat (76), a limiting sliding rod (77) and a float (78), the upper end of the flow guide groove (41) is fixedly connected with the ultrasonic range finder (73), the upper end of the right side of the flow guide groove (41) is fixedly connected with the pressure sensor fixing frame (74), the upper end of the pressure sensor fixing frame (74) is fixedly connected with the pressure sensor (75), the inner side of the upper side of the right end of the flow guide groove (41) is fixedly connected with the limiting seat (76), the inner side of the limiting seat (76) is slidingly connected with the limiting sliding rod (77), the lower end of the limiting sliding rod (77) is fixedly connected with the float (78), and the upper end of the limiting sliding rod (77) is fixedly connected with the lower end of the pressure sensor (75).

9. A device for stabilizing the flow of liquid in a flow channel of a casting mill according to claim 1, characterized in that: The inclined flow stabilizing assembly (8) comprises an inclined plate (81), a rectangular grid (82), a worm wheel (83), a support plate (84), a worm (85) and a motor two (86), the inner side of the rear end of the flow guide groove (41) is rotatably connected with the upper side of the rectangular grid (82), a plurality of inclined rectangular grids (82) are fixedly connected to the inner side of the inclined plate (81), the left end of the inclined plate (81) is fixedly connected with the worm wheel (83), the left end of the flow guide groove (41) is fixedly connected with two support plates (84), the worm (85) is rotatably connected between the support plates (84), the worm (85) cooperates with the worm wheel (83), the left end of the flow guide groove (41) is fixedly connected with the motor two (86), and the output shaft of the motor two (86) is fixedly connected with the worm (85).

10. The method of claim 1, wherein the method further comprises: The method comprises the following steps: S1: the buffer tank (1) controls the initial flow rate of the metal liquid through the baffle (21) and the flow regulating plate (23) of the flow limiting assembly (2), the hydraulic machine (27) drives the rack one (26) to rotate the gear one (25), the linkage flow regulating plate (23) adjusts the opening degree of the outflow port (24), the wave wall plate (35) and the grid one (37) of the energy dissipation and flow stabilizing assembly (3) disperse the kinetic energy of the metal liquid through the rectangular through hole (38), reduce the turbulent flow, the flow regulating assembly (4) dynamically balances the liquid level through the conical flow blocking head (45) and the communication pipe (46), the automatic control assembly (5) links the motor one (53) driven by the gear two (52) based on the data of the liquid level detection unit (7), realizes closed-loop regulation, multi-stage collaborative control of liquid level fluctuation, and improves the casting and rolling stability. S2: After the molten metal flows out of the outlet (24), it is symmetrically divided into two directions by the arc-shaped plate (31), and the molten metal eliminates part of the energy and slows down the flow rate. The molten metal flows through the two wave wall plates (35), causing the flowing molten metal to produce flow and vortex, and at the same time colliding and rubbing with it, achieving the purpose of energy dissipation, further reducing the flow rate of the molten metal. The bidirectional threaded rod (32) rotates to drive the mounting plate one (34) to slide along the sliding rod (33), driving the wave wall plate (35) to adjust the spacing, then passing through the rectangular through hole (38) on the grid one (37) to reduce the flow rate and flow smoothly. The molten metal gradually slows down through the rectangular through hole (38), reducing the impact force. The adjustable wave wall plate and the grid combination energy dissipation adapt to different flow rate conditions. The probe of the temperature detection device (9) monitors the temperature of the molten metal in the buffer tank (1) in real time, and controls the heating plate (10) to heat or keep warm through electrical signals to prevent the molten metal from solidifying or uneven temperature. Precise temperature control ensures the fluidity of the molten metal and reduces cold shut defects. S3: The motor one (53) of the automatic control assembly (5) drives the gear two (52) and the rack two (51) to mesh, driving the limiting column (47) to rise and fall, thereby adjusting the opening of the conical flow blocking head (45), realizing automatic control of flow rate. The gear and rack transmission has high precision and fast response speed. The rectangular float (65) of the flow dynamic adjustment assembly (6) rotates with the liquid level, driving the rotating shaft two (64) to rotate, and through the connecting rod two (63) and the rotating shaft one (62) linkage sliding frame (61), driving the connecting rod one (43) to adjust the position of the conical flow blocking head (45). The float real-time feedback liquid level change, self-adaptive adjustment of flow rate. The rectangular float (65) of the flow dynamic adjustment assembly (6) rotates with the liquid level, driving the rotating shaft two (64) to rotate, and through the connecting rod two (63) and the rotating shaft one (62) linkage sliding frame (61), driving the connecting rod one (43) to adjust the position of the conical flow blocking head (45). The float real-time feedback liquid level change, self-adaptive adjustment of flow rate. S4: The grid two (72) of the liquid level detection unit (7) is fixed in the flow guide groove (41) through the limiting sliding frame (71), which uses the grid structure to stabilize the local liquid level and reduce the fluctuation interference detection accuracy. The double limiting structure ensures the stability of the detection area flow state. The ultrasonic range finder (73) and the float (78) monitor the liquid level height synchronously. The float (78) triggers the pressure sensor (75) to generate a signal through the limiting sliding rod (77), and combines with the limiting seat (76) to constrain the sliding range, realizing redundant detection and water surface fluctuation. Multiple sensor fusion improves the reliability of liquid level control. S5: The motor two (86) of the inclined flow stabilizing assembly (8) drives the worm (85) and the worm gear (83) to mesh, driving the inclined plate (81) and the rectangular grid bar (82) to adjust the inclination. The metal liquid flows through the grid bar to disperse kinetic energy. At the same time, it can be determined whether to set the rectangular grid bar (82) on the inclined plate (81) according to the situation. The water ripples generated by the liquid level collide on the inclined plate (81), thereby reducing the water ripples on the surface of the aluminum liquid, ensuring the stability of the subsequent water surface, and the self-locking characteristics of the worm gear keep the inclination stable, reducing secondary disturbance.

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