A high-efficiency, continuous and high-precision control method for continuous casting mold slag

Abstract

The present invention discloses a method for efficient, continuous, and high-precision control of continuous casting protective slag, which adopts a continuous control device to weigh the continuous casting protective slag, and the steps are: replenishing materials; preliminary weighing; precise weighing; material collection; and continuous operation. The present invention uses a feeding mechanism to slowly drop the material onto the channel steel, and cooperates with a first weight sensor to perform real-time weighing inside the V-shaped trough to obtain the material amount required for multiple precise material removals, stops feeding, and then performs secondary precise weighing, controls the tilt of the channel steel, cooperates with a vibration motor and a spring part to vibrate the channel steel, and causes the material to slowly fall onto the weighing plate. After completing the precise weighing, the blocking part is controlled to block the output port, and the vibration motor is turned off at the same time to prevent the material from continuing to fall and causing errors, thereby achieving precise control of the material weighing. The weighing plate is then tilted and the material is removed in cooperation with the pushing assembly, and the weighing operation is cyclically performed to achieve efficient, continuous, and high-precision control of the continuous casting protective slag, significantly improving efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical continuous casting, in particular to a method for efficiently, continuously and accurately controlling continuous casting mold slag. Background Art

[0002] Currently, the continuous casting process in the metallurgical industry generally adopts the mold slag pouring mode. The mold slag is a crucial step in the mold slag pouring process. The physical and chemical properties of the mold slag and the amount added are closely related to the quality of the continuous casting billets. Excessive mold slag addition will cause a thick sintering layer on the molten steel surface. Excessive mold slag addition will result in an insufficient slag layer thickness on the molten steel surface, which is prone to defects such as slag curling.

[0003] After years of development and continuous improvements by metallurgical industry researchers, mold slag addition has evolved from primitive manual addition to the currently common continuous control method (motor rotation). This method is inefficient and cannot meet actual production needs. Existing technology uses mechanical equipment to weigh continuous casting mold slag, requiring manual monitoring. This process is complex and lacks precision in automatic weighing. Furthermore, errors are inevitable during continuous weighing of continuous casting mold slag.

[0004] Therefore, it is necessary to develop an efficient, continuous and high-precision control method for continuous casting mold slag. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and to provide a method for efficient, continuous and high-precision control of continuous casting protective slag. The material is slowly dropped and transported to the channel steel through a feeding mechanism, and is weighed in real time inside the V-shaped trough in conjunction with a first weight sensor to obtain the material quantity required for multiple precise material removals. The material is then stopped and then a second precise weighing is performed. The channel steel is tilted and vibrated in conjunction with a vibration motor and a spring member. Under the action of the necking structure, the material is slowly shaken off onto the weighing plate. After the precise weighing is completed, the blocking part is controlled to close the output port and the vibration motor is turned off at the same time to achieve precise control of the material weighing. The weighing plate is then tilted and the material is removed in conjunction with the pushing assembly. The weighing operation is cyclically performed to achieve efficient, continuous and high-precision control of the continuous casting protective slag and solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for efficiently, continuously and accurately controlling continuous casting mold slag, wherein a continuous control device is used to weigh the continuous casting mold slag, and the continuous control device comprises:

[0008] A hopper is loaded with continuous casting mold slag and is equipped with a feeding mechanism for discharging the continuous casting mold slag;

[0009] The first weighing mechanism is located below the hopper and is used to receive the continuous casting mold slag output by the hopper and cooperate with the built-in first weight sensor to perform preliminary weighing of the continuous casting mold slag. The output end of the bearing surface of the first weighing mechanism is provided with a blocking portion;

[0010] The second weighing mechanism is located below the output end of the first weighing mechanism, and is used to receive the continuous casting mold slag output by the first weighing mechanism and cooperate with the built-in second weight sensor to accurately weigh the continuous casting mold slag;

[0011] The bearing surfaces of the first weighing mechanism and the second weighing mechanism are both configured as movable structures, so that the bearing surfaces can be tilted, so that the continuous casting mold slag weighed by the first weighing mechanism and the second weighing mechanism can be output in a directionally controlled manner;

[0012] The continuous control method of continuous casting mold slag is as follows:

[0013] S1. Supplementary materials: inject continuous casting mold slag into the hopper of the continuous control device;

[0014] S2. Preliminary weighing: Place the bearing surface of the first weighing mechanism horizontally, start the feeding mechanism, and allow the material in the hopper to fall at a uniform speed and land on the bearing surface of the first weighing mechanism. During this process, the first weight sensor is used to monitor the weight change in real time. When the set weight T1 is reached, the first drive motor of the feeding mechanism is controlled to stop working;

[0015] S3. Precision weighing: Place the bearing surface of the second weighing mechanism horizontally, control the bearing surface of the first weighing mechanism to tilt, and open the blocking part, so that the material on the bearing surface of the first weighing mechanism slowly falls. During this process, cooperate with the second weight sensor to monitor the weight change in real time. When the set weight T2 is reached, the blocking part is closed, and the tilt angle of the bearing surface of the first weighing mechanism is controlled to decrease until it is horizontal;

[0016] S4. Material collection: Control the bearing surface of the second weighing mechanism to tilt so that the material slides to one side of the bearing surface of the second weighing mechanism, pushes off the accurately weighed continuous casting mold slag, and collects the pushed-off material;

[0017] S5, continuous operation: control the bearing surface of the second weighing mechanism to return to the initial state, and then repeat S2-S5 or S3-S5 according to the amount of material on the bearing surface of the first weighing mechanism, and replenish the material in the hopper when it is insufficient.

[0018] Preferably, the continuous control device further comprises a vehicle body, and the first weighing mechanism and the second weighing mechanism are both mounted on the vehicle body.

[0019] Preferably, the first weighing mechanism includes a channel steel, a first hydraulic cylinder and two second hydraulic cylinders, spring members are provided on both sides of the front end and the rear end of the bottom wall of the channel steel, and a first weight sensor is provided between the three spring members and the channel steel, a vibration motor is installed on the channel steel, and the first hydraulic cylinder and the second hydraulic cylinder are both powered by a hydraulic mechanism;

[0020] The output end of the first hydraulic cylinder is hinged to the spring part located at the front end of the channel steel bottom wall, and the other end is fixed on the vehicle body. The output ends of the two second hydraulic cylinders are respectively hinged to the two spring parts located at the tail end of the channel steel bottom wall, and the other ends are hinged to the vehicle body through hinges.

[0021] Preferably, the channel steel is configured as a pocket-shaped structure, and a V-shaped trough is provided on the top of the channel steel, serving as the bearing surface of the first weighing mechanism. One end of the V-shaped trough passes through the side wall of the channel steel, and one end of the V-shaped trough passing through the side wall of the channel steel is configured as a necking structure. A fence plate is provided on the top of the channel steel and on the outside of the V-shaped trough.

[0022] Preferably, the blocking part includes two retaining walls, which are axially symmetrically distributed on the outside of the end of the V-shaped trough and are used to block the necking structure. The front end of the channel steel and the parts on both sides of the V-shaped trough are rotatably connected to the shaft, and the two retaining walls are respectively fixed on the two shafts, and the tops of the two shafts are respectively provided with mutually meshing flat gears. The bottom end of the channel steel is fixedly connected to the second drive motor, and the output shaft of the second drive motor is transmission-connected to one of the shafts.

[0023] Preferably, the second weighing mechanism includes a weighing plate as a bearing surface of the second weighing mechanism, a bearing plate distributed in parallel is provided below the weighing plate, and the second weight sensor is located between the weighing plate and the bearing plate, a pocket plate extending to the top of the weighing plate is installed on the bearing plate, and the side wall of the pocket plate is slidably connected to the side wall of the weighing plate;

[0024] The front end of the vehicle body is pulled with a mounting frame, the end of the load-bearing plate is hinged to the mounting frame through a hinge, and the load-bearing plate is initially placed flat on the top of the mounting frame;

[0025] A first electric push rod is provided between the supporting plate and the mounting frame, and the two ends of the first electric push rod are hinged to the supporting plate and the mounting frame respectively, the two side walls of the supporting plate are fixedly connected with slide rails, and a slider is slidably connected to the slide rails, and an arc-shaped slide groove piece is integrally provided at the bottom end of the slider, and the top of both sides of the mounting frame are threadedly connected with limit pins, and the limit pins are slidably matched with the arc-shaped slide groove piece.

[0026] Preferably, in S4, a pushing assembly is used to push the weighed material down, and a second electric push rod is fixedly connected to one side of the supporting plate through a sleeve, and the output end of the second electric push rod is transmission-connected to a scraper, and the two side walls of the scraper are respectively slidably matched with the pocket plate and the supporting plate, and in the initial state, the scraper does not contact the pocket plate and the weighing plate.

[0027] Preferably, in S2 and S3, T1 ≥ T2, and T1 is an integer multiple of T2.

[0028] Preferably, the feeding mechanism includes a spiral auger, and a plurality of support rods distributed in a circular manner are installed inside the hopper, and a sealing box is commonly connected between the plurality of support rods. The top end of the spiral auger passes through the sealing box and is rotatably connected to the through hole, and the bottom end of the spiral auger extends from the output port of the hopper to its outside, the first drive motor is fixed to the outer wall of the hopper, and the output shaft of the first drive motor drives the spiral auger through the steering gear.

[0029] Preferably, the continuous control device also includes a touch display screen, the connection end of the touch display screen is electrically connected to a single-chip microcomputer, the input end and output end of the single-chip microcomputer are electrically connected to an A / D converter and a D / A converter respectively, and the first weight sensor and the second weight sensor are both electrically connected to the A / D converter, and the first drive motor, the second drive motor, the vibration motor, the hydraulic mechanism, the first electric push rod and the second electric push rod are all electrically connected to the D / A converter.

[0030] The present invention has the following beneficial effects:

[0031] The material is slowly dropped onto the channel steel through the feeding mechanism, and is weighed in real time inside the V-shaped trough in conjunction with the first weight sensor to obtain the material quantity required for multiple accurate material removals. The material removal is stopped, and then a second accurate weighing is performed. The channel steel is controlled to tilt, and the vibration motor and spring parts are used to vibrate the channel steel. Under the action of the necking structure, the material is slowly shaken off onto the weighing plate. After the accurate weighing is completed, the blocking part is controlled to close the output port, and the vibration motor is turned off at the same time to avoid the problem of error caused by continued falling of the material, thereby achieving accurate control of the material weighing. The weighing plate is then tilted and the material is removed in conjunction with the pusher assembly. The weighing operation is cyclical, achieving efficient, continuous and high-precision control of the continuous casting protective slag, with a high degree of automation and significantly improved efficiency.

[0032] By optimizing the design of the pocket-shaped channel steel, setting the side of the V-shaped trough with a constriction and a fence plate on the top of the outer side of the V-shaped trough, the material can be gathered and decelerated when it falls, which can prevent the material from spilling. When the material in the V-shaped trough falls, the speed slows down and the material will not be unloaded quickly. The output port is small and can be closed quickly, the retaining wall is subjected to less force, and the safety and stability are greatly improved. While ensuring the weighing accuracy of the material, the service life of the device can be extended. The vibration amplitude and frequency of the vibration motor can be adjusted to suit the protective slag and steel grades with different physical and chemical properties. According to the particle size of the continuous casting protective slag and the work efficiency requirements, the inclination of the channel steel is adjusted to realize the control of the continuous casting protective slag feeding speed.

[0033] By recording each time the material weighed on the bearing surface of the first weighing mechanism and the material weighed on the bearing surface of the second weighing mechanism and uploading them to the memory connected to the single chip microcomputer, a historical record is formed, which facilitates the tracing of historical data and quality analysis work, and facilitates troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A flow chart of the method for efficiently, continuously and accurately controlling continuous casting mold slag provided by the present invention;

[0035] Figure 2 A schematic diagram of the overall structure of the continuous control device provided by the present invention;

[0036] Figure 3 is a cross-sectional view of the hopper in the present invention;

[0037] Figure 4 This is a first-perspective perspective view of the channel steel and its connection structure (blocking portion closed) in the present invention;

[0038] Figure 5 This is a second perspective view of the channel steel and its connection structure (blocking portion closed) in the present invention;

[0039] Figure 6 This is a first-perspective stereoscopic view of the channel steel and its connection structure (with the blocking portion open) in the present invention;

[0040] Figure 7 For the present invention Figure 6 a top view of the structure shown;

[0041] Figure 8 A first perspective view of the combined structure of the second weighing mechanism and the pushing assembly in the present invention;

[0042] Figure 9 A second perspective view of the combined structure of the second weighing mechanism and the pushing assembly in the present invention;

[0043] Figure 10This is a system control flow chart of the intelligent control system provided by the present invention.

[0044] Among them are:

[0045] Hopper-1; feeding mechanism-2; first weighing mechanism-3; blocking part-4; second weighing mechanism-5; vehicle body-6; pushing assembly-7; touch screen-8; single chip microcomputer-9;

[0046] Auger-201; support rod-202; sealing box-203; first drive motor-204; steering gear-205;

[0047] Channel steel 301; first hydraulic cylinder 302; second hydraulic cylinder 303; spring 304; first weight sensor 305; vibration motor 306; hydraulic mechanism 307; V-shaped trough 308; fence plate 309;

[0048] Retaining wall 401; shaft 402; flat gear 403; second drive motor 404;

[0049] Weighing plate 501; carrying plate 502; second weight sensor 503; pocket plate 504; mounting bracket 505; first electric push rod 506; slide rail 507; slider 508; arc-shaped slide plate 509; limit pin 510;

[0050] Card sleeve-701; second electric push rod-702; scraper-703. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0052] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of components and therefore should not be construed as limitations on the present invention. The specific dimensions used in this embodiment are intended only to illustrate the technical solution and do not limit the scope of protection of the present invention.

[0053] like Figure 1-10 As shown, a method for controlling continuous casting mold slag with high efficiency, continuousness and high precision is provided, wherein a continuous control device is used to weigh the continuous casting mold slag, and the continuous control device includes:

[0054] A hopper 1 is loaded with continuous casting mold slag, and a feeding mechanism 2 is installed inside the hopper 1 for discharging the continuous casting mold slag;

[0055] As a preferred embodiment of the feeding mechanism 2 in the present invention:

[0056] The feeding mechanism 2 includes a spiral auger 201. A plurality of support rods 202 are installed in a circumferential distribution inside the hopper 1. A sealing box 203 is commonly connected between the plurality of support rods 202. The top of the spiral auger 201 passes through the sealing box 203 and is rotatably connected to the through hole. The bottom end of the spiral auger 201 extends from the output port of the hopper 1 to the outside thereof. A first drive motor 204 is fixed to the outer wall of the hopper 1. The output shaft of the first drive motor 204 drives the spiral auger 201 through the steering gear 205. The output shaft of the first drive motor 204 drives the spiral auger 201 through the steering gear 205. The continuous casting protection slag is stirred by the spiral auger 201, and the material is evenly conveyed, which facilitates the precise control of the discharge amount.

[0057] This structure can prevent the transmission structure of the spiral auger 201 from being affected by the material, thereby improving the working stability of the device and extending the service life of the device.

[0058] The first weighing mechanism 3 is located below the hopper 1 and is used to receive the continuous casting mold slag output by the hopper 1 and cooperate with the built-in first weight sensor 305 to perform preliminary weighing of the continuous casting mold slag. The output end of the bearing surface of the first weighing mechanism 3 is provided with a blocking portion 4;

[0059] As a preferred embodiment of the first weighing mechanism 3 in the present invention:

[0060] The first weighing mechanism 3 includes a channel steel 301, a first hydraulic cylinder 302, and two second hydraulic cylinders 303. Spring members 304 are provided at the front end and both sides of the rear end of the bottom wall of the channel steel 301. A first weight sensor 305 is provided between the three spring members 304 and the channel steel 301. A vibration motor 306 is installed on the channel steel 301. The first hydraulic cylinder 302 and the second hydraulic cylinder 303 are both powered by a hydraulic mechanism 307.

[0061] Multiple first weight sensors 305 are used to evenly distribute the load and weigh it simultaneously, and the weight change of the load is calculated. When the weight before vibration unloading (data is updated in real time with each unloading) - current weight = target setting addition amount, vibration is stopped;

[0062] The output end of the first hydraulic cylinder 302 is hinged to the spring member 304 located at the front end of the bottom wall of the channel steel 301, and the other end is fixed to the vehicle body 6. The output ends of the two second hydraulic cylinders 303 are respectively hinged to the two spring members 304 located at the rear end of the bottom wall of the channel steel 301, and the other ends are hinged to the vehicle body 6 through hinges.

[0063] Specifically, the channel steel 301 is configured as a pocket-shaped structure, and a V-shaped trough 308 is provided on the top of the channel steel 301, serving as the bearing surface of the first weighing mechanism 3. One end of the V-shaped trough 308 penetrates the side wall of the channel steel 301, and one end of the V-shaped trough 308 penetrating the side wall of the channel steel 301 is configured as a constricted structure. A fence plate 309 is provided on the top of the channel steel 301 and outside the V-shaped trough 308.

[0064] The vibration motor 306 cooperates with the spring member 304 to vibrate the channel steel 301. The vibration amplitude and frequency of the vibration motor 306 can be adjusted to suit mold slag and steel grades with different physical and chemical properties. This allows the material in the V-shaped trough 308 to be slowly shaken out. The inclination of the channel steel 301 is adjusted according to the particle size of the continuous casting mold slag and the work efficiency requirements, thereby realizing the control of the continuous casting mold slag discharge speed.

[0065] As a preferred embodiment of the barrier portion 4 in the present invention:

[0066] The blocking portion 4 includes two retaining walls 401, which are axially symmetrically distributed on the outer sides of the ends of the V-shaped trough 308 and are used to block the shrinkage structure. The front end of the channel steel 301 and the parts on both sides of the V-shaped trough 308 are rotatably connected to the shaft 402, and the two retaining walls 401 are respectively fixed on the two shafts 402. The tops of the two shafts 402 are respectively provided with mutually meshing flat gears 403. The bottom end of the channel steel 301 is fixedly connected to the second drive motor 404, and the output shaft of the second drive motor 404 is transmission-connected to one of the shafts 402;

[0067] The second weighing mechanism 5 is located below the output end of the first weighing mechanism 3 and is used to receive the continuous casting mold slag output by the first weighing mechanism 3 and cooperate with the built-in second weight sensor 503 to accurately weigh the continuous casting mold slag;

[0068] As a preferred embodiment of the second weighing mechanism 5 in the present invention:

[0069] The front end of the vehicle body 6 is towed with a mounting frame 505, and the end of the carrying plate 502 is hinged to the mounting frame 505 by a hinge, and the carrying plate 502 is initially placed flat on the top of the mounting frame 505; a first electric push rod 506 is provided between the carrying plate 502 and the mounting frame 505, and the two ends of the first electric push rod 506 are respectively hinged to the carrying plate 502 and the mounting frame 505, and the two side walls of the carrying plate 502 are fixedly connected to the sliding rails 507, and the sliding rails 507 are slidably connected to the sliders 508, and the bottom end of the slider 508 is integrally provided with an arc-shaped sliding groove piece 509, and the top of both sides of the mounting frame 505 is threadedly connected with a limit pin 510, and the limit pin 510 is slidably matched with the arc-shaped sliding groove piece 509;

[0070] The second weighing mechanism 5 includes a weighing plate 501, which serves as the bearing surface of the second weighing mechanism 5. A supporting plate 502 is arranged below the weighing plate 501 and is distributed in parallel. A second weight sensor 503 is located between the weighing plate 501 and the supporting plate 502. A pocket plate 504 is installed on the supporting plate 502 and extends to the top of the weighing plate 501. The side wall of the pocket plate 504 is slidably connected to the side wall of the weighing plate 501.

[0071] The weighing plate 501 is kept horizontal when receiving the material, and real-time weighing is performed at this time. After the weighing is completed, the first electric push rod 506 is controlled to tilt the weighing plate 501 to gather the material and then remove the material;

[0072] The bearing surfaces of the first weighing mechanism 3 and the second weighing mechanism 5 are both configured as movable structures, so that the bearing surfaces can be tilted, so that the continuous casting mold slag weighed by the first weighing mechanism 3 and the second weighing mechanism 5 can be output in a directionally controlled manner;

[0073] The continuous control device also includes a touch screen display 8, the connection end of the touch screen display 8 is electrically connected to the single-chip microcomputer 9, the input end and output end of the single-chip microcomputer 9 are electrically connected to the A / D converter and the D / A converter respectively, and the first weight sensor 305 and the second weight sensor 503 are both electrically connected to the A / D converter, and the first drive motor 204, the second drive motor 404, the vibration motor 306, the hydraulic mechanism 307, the first electric push rod 506 and the second electric push rod 702 are all electrically connected to the D / A converter;

[0074] The continuous control method of continuous casting mold slag is as follows:

[0075] S1. Supplementing materials: injecting continuous casting mold slag into the hopper 1 of the continuous control device;

[0076] S2. Preliminary weighing: Place the channel steel 301 horizontally, start the feeding mechanism 2, and send a command through the single-chip microcomputer 9 to control the first drive motor 204 to work, so that its output shaft drives the spiral auger 201 through the steering gear 205, and the continuous casting protection slag is evenly transported, so that the material in the hopper 1 falls at a uniform speed and falls on the horizontally placed channel steel 301, specifically, falls inside the V-shaped trough 308. During this process, multiple first weight sensors 305 are used to monitor the weight change in real time. A weight value T1 is set in the program of the single-chip microcomputer 9 as needed. When it is monitored that the material in the V-shaped trough 308 reaches the set weight T1, the first drive motor 204 of the feeding mechanism 2 is controlled to stop working, and the material is stopped at this time. The material in the V-shaped trough 308 meets the requirement of being able to take out the material accurately multiple times;

[0077] S3. Precise weighing: Place the weighing plate 501 horizontally, and send a command through the single-chip microcomputer 9 to control the first hydraulic cylinder 302 and the second hydraulic cylinder 303 to work, so that the channel steel 301 slowly tilts, and the output end of the V-shaped trough 308 is located directly above the weighing plate 501, and the end of the V-shaped trough 308 is kept unobstructed. Send a command to control the vibration motor 306 to work, and the vibration motor 306 cooperates with the spring member 304 to make the channel steel 301 vibrate. Under the action of the necking structure, the material in the V-shaped trough 308 is slowly shaken off and falls onto the weighing plate 501;

[0078] The second weight sensor 503 accurately weighs the continuous casting mold slag on the weighing plate 501, and sets a weight value T2 in the program of the single chip computer 9 as needed, wherein T1 ≥ T2, and T1 is an integer multiple of T2;

[0079] When it is detected that the material on the weighing plate 501 reaches the set weight T2, the vibration motor 306 is turned off, and the second drive motor 404 is controlled to work at the same time. The output end transmission shaft 402, under the meshing action of the two flat gears 403, the two retaining walls 401 are driven to retract synchronously inward to close the output port of the V-shaped trough 308, thereby preventing the material from continuing to fall and causing errors, thereby achieving precise control of material weighing. Subsequently, the inclination angle of the bearing surface of the first weighing mechanism 3 is controlled to decrease until it is horizontal.

[0080] S4, material collection: control the first electric push rod 506 to tilt the weighing plate 501, so that the material slides to the side of the weighing plate 501 and is blocked by the pocket plate 504, the material is gathered, and then the material is removed;

[0081] Specifically, the pushing assembly 7 is used to push the weighed material down, and a second electric push rod 702 is fixedly connected to one side of the carrying plate 502 through a clamping sleeve 701, and the output end of the second electric push rod 702 is transmission-connected to a scraper 703, and the two side walls of the scraper 703 are respectively slidably matched with the pocket plate 504 and the carrying plate 502, and in the initial state, the scraper 703 is not in contact with the pocket plate 504 and the weighing plate 501; during weighing, the pocket plate 504 and the scraper 703 will not affect the accurate measurement of the second weight sensor 503; the output end of the second electric push rod 702 is controlled to extend, and the scraper 703 is pushed to push off the accurately weighed continuous casting protective slag on the weighing plate 501, and the pushed-off material is collected;

[0082] S5, continuous operation: the weighing plate 501 is controlled to return to its initial state (i.e., horizontal state). Since the material in the V-shaped trough 308 meets the requirements of multiple accurate material removal, the channel steel 301 is directly tilted again, and then the blocking part 4 is controlled to open, and the vibration motor 306 is controlled to operate at the same time; according to the amount of material on the bearing surface of the first weighing mechanism 3, S2-S5 or S3-S5 are repeated, and the material in the hopper 1 is replenished when it is insufficient;

[0083] The materials weighed on the bearing surface of the first weighing mechanism 3 and the materials weighed on the bearing surface of the second weighing mechanism 5 are recorded each time and uploaded to the memory connected to the single chip microcomputer 9 to form a historical record, which is convenient for tracing historical data and quality analysis.

[0084] In order to facilitate the docking installation of the device, the continuous control device further includes a vehicle body 6 , and the first weighing mechanism 3 and the second weighing mechanism 5 are both installed on the vehicle body 6 .

[0085] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A method for efficiently, continuously and accurately controlling continuous casting mold slag, which uses a continuous control device to weigh the continuous casting mold slag, characterized by: The continuous control device comprises: A hopper (1) is loaded with continuous casting mold slag, and a feeding mechanism (2) is installed inside the hopper (1) for discharging the continuous casting mold slag; A first weighing mechanism (3) is located below the hopper (1) and is used to receive the continuous casting mold slag output by the hopper (1) and to perform preliminary weighing of the continuous casting mold slag in conjunction with a built-in first weight sensor (305). A blocking portion (4) is provided at the output end of the bearing surface of the first weighing mechanism (3); A second weighing mechanism (5) is located below the output end of the first weighing mechanism (3), and is used to receive the continuous casting mold slag output by the first weighing mechanism (3), and cooperate with the built-in second weight sensor (503) to accurately weigh the continuous casting mold slag; The bearing surfaces of the first weighing mechanism (3) and the second weighing mechanism (5) are both configured as movable structures, so that the bearing surfaces can be tilted, so that the continuous casting mold slag weighed by the first weighing mechanism (3) and the second weighing mechanism (5) can be output in a directionally controlled manner; The continuous control method of continuous casting mold slag is as follows: S1. Supplementing materials: injecting continuous casting mold slag into the hopper (1) of the continuous control device; S2, preliminary weighing: the bearing surface of the first weighing mechanism (3) is placed horizontally, the feeding mechanism (2) is started, and the material in the hopper (1) falls at a uniform speed and lands on the bearing surface of the first weighing mechanism (3). During this process, the weight change is monitored in real time with the first weight sensor (305). When the set weight T1 is reached, the first driving motor (204) of the feeding mechanism (2) is controlled to stop working; S3, precise weighing: placing the bearing surface of the second weighing mechanism (5) horizontally, controlling the bearing surface of the first weighing mechanism (3) to tilt, and opening the blocking portion (4), so that the material on the bearing surface of the first weighing mechanism (3) slowly falls down. During this process, the second weight sensor (503) is used to monitor the weight change in real time. When the set weight T2 is reached, the blocking portion (4) is closed, and the tilt angle of the bearing surface of the first weighing mechanism (3) is controlled to decrease until it reaches a horizontal state; S4, material collection: controlling the bearing surface of the second weighing mechanism (5) to tilt so that the material slides to one side of the bearing surface of the second weighing mechanism (5), pushing off the accurately weighed continuous casting protection slag, and collecting the pushed-off material; S5, continuous operation: control the bearing surface of the second weighing mechanism (5) to return to the initial state, and then repeat S2-S5 or S3-S5 according to the amount of material on the bearing surface of the first weighing mechanism (3), and replenish the material in the hopper (1) when it is insufficient.

2. The method for efficiently, continuously and accurately controlling continuous casting mold slag according to claim 1, characterized in that: The continuous control device further comprises a vehicle body (6), and the first weighing mechanism (3) and the second weighing mechanism (5) are both mounted on the vehicle body (6).

3. The method for controlling continuous casting mold slag with high efficiency, continuity and precision according to claim 2, characterized in that: The first weighing mechanism (3) includes a channel steel (301), a first hydraulic cylinder (302) and two second hydraulic cylinders (303). Spring members (304) are provided at both sides of the front end and the rear end of the bottom wall of the channel steel (301). A first weight sensor (305) is provided between the three spring members (304) and the channel steel (301). A vibration motor (306) is installed on the channel steel (301). The first hydraulic cylinder (302) and the second hydraulic cylinder (303) are both powered by a hydraulic mechanism (307). The output end of the first hydraulic cylinder (302) is hinged to the spring member (304) located at the front end of the bottom wall of the channel steel (301), and the other end is fixed to the vehicle body (6). The output ends of the two second hydraulic cylinders (303) are respectively hinged to the two spring members (304) located at the rear end of the bottom wall of the channel steel (301), and the other ends are hinged to the vehicle body (6) through hinges.

4. The method for efficiently, continuously and accurately controlling continuous casting mold slag according to claim 3, characterized in that: The channel steel (301) is configured as a pocket-shaped structure, and a V-shaped trough (308) is provided on the top of the channel steel (301) as a bearing surface of the first weighing mechanism (3), one end of the V-shaped trough (308) penetrates the side wall of the channel steel (301), and one end of the V-shaped trough (308) penetrating the side wall of the channel steel (301) is configured as a necking structure, and a fence plate (309) is provided on the top of the channel steel (301) and outside the V-shaped trough (308).

5. The method for efficiently, continuously and accurately controlling continuous casting mold slag according to claim 4, characterized in that: The blocking portion (4) includes two retaining walls (401), which are axially symmetrically distributed on the outer sides of the end of the V-shaped trough (308) and are used to block the shrinkage structure. The front end of the channel steel (301) and the parts on both sides of the V-shaped trough (308) are rotatably connected to the shaft (402), and the two retaining walls (401) are respectively fixed on the two shafts (402). The top ends of the two shafts (402) are respectively provided with mutually meshing flat gears (403). The bottom end of the channel steel (301) is fixedly connected to the second drive motor (404), and the output shaft of the second drive motor (404) is transmission-connected to one of the shafts (402).

6. The method for efficient, continuous and high-precision control of continuous casting mold slag according to claim 5, characterized in that: The second weighing mechanism (5) includes a weighing plate (501) as a bearing surface of the second weighing mechanism (5), a bearing plate (502) is arranged below the weighing plate (501) and is distributed in parallel, and a second weight sensor (503) is located between the weighing plate (501) and the bearing plate (502), and a pocket plate (504) extending to the top of the weighing plate (501) is installed on the bearing plate (502), and the side wall of the pocket plate (504) is slidably connected to the side wall of the weighing plate (501); The front end of the vehicle body (6) is pulled with a mounting frame (505), the end of the load-bearing plate (502) is hinged to the mounting frame (505) through a hinge, and the load-bearing plate (502) is initially placed flat on the top of the mounting frame (505); A first electric push rod (506) is provided between the supporting plate (502) and the mounting frame (505), and the two ends of the first electric push rod (506) are hinged to the supporting plate (502) and the mounting frame (505) respectively. The two side walls of the supporting plate (502) are fixedly connected with slide rails (507), and the slide rails (507) are slidably connected with sliders (508). The bottom end of the slider (508) is integrally provided with an arc-shaped slide groove piece (509). The top of both sides of the mounting frame (505) is threadedly connected with a limit pin (510), and the limit pin (510) is slidably matched with the arc-shaped slide groove piece (509).

7. The method for controlling continuous casting mold slag with high efficiency, continuity and high precision according to claim 6, characterized in that: In S4, a material pushing assembly (7) is used to push the weighed material downward. A second electric push rod (702) is fixedly connected to one side of the supporting plate (502) via a clamping sleeve (701), and a scraper (703) is transmission-connected to the output end of the second electric push rod (702). The two side walls of the scraper (703) are respectively slidably engaged with the pocket plate (504) and the supporting plate (502). In an initial state, the scraper (703) does not contact the pocket plate (504) and the weighing plate (501).

8. The method for efficient, continuous and high-precision control of continuous casting mold slag according to claim 6, characterized in that: In S2 and S3, T1 ≥ T2, and T1 is an integer multiple of T2.

9. The method for efficient, continuous and high-precision control of continuous casting mold slag according to claim 1, characterized in that: The feeding mechanism (2) includes a spiral auger (201), a plurality of support rods (202) arranged in a circumferential manner are installed inside the hopper (1), a sealing box (203) is commonly connected between the plurality of support rods (202), and the top end of the spiral auger (201) passes through the sealing box (203) and is rotatably connected to the through hole, and the bottom end of the spiral auger (201) extends from the output port of the hopper (1) to the outside thereof, the first drive motor (204) is fixed to the outer wall of the hopper (1), and the output shaft of the first drive motor (204) drives the spiral auger (201) through the steering gear (205).

10. The method for controlling continuous casting mold slag with high efficiency, continuity and high precision according to claim 7, characterized in that: The continuous control device further comprises a touch display screen (8), a connection end of the touch display screen (8) being electrically connected to a single-chip microcomputer (9), an input end and an output end of the single-chip microcomputer (9) being electrically connected to an A / D converter and a D / A converter, respectively, and the first weight sensor (305) and the second weight sensor (503) being electrically connected to the A / D converter, and the first drive motor (204), the second drive motor (404), the vibration motor (306), the hydraulic mechanism (307), the first electric push rod (506), and the second electric push rod (702) being electrically connected to the D / A converter.

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