GB2616928A - Steel Ladle Scale Weighting Device, Weighing Method and System Without Drift - Google Patents
Steel Ladle Scale Weighting Device, Weighing Method and System Without Drift Download PDFInfo
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- GB2616928A GB2616928A GB2211395.5A GB202211395A GB2616928A GB 2616928 A GB2616928 A GB 2616928A GB 202211395 A GB202211395 A GB 202211395A GB 2616928 A GB2616928 A GB 2616928A
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- weight
- steel ladle
- value
- casting
- scale
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- 238000005303 weighing Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 261
- 239000010959 steel Substances 0.000 claims abstract description 261
- 238000005266 casting Methods 0.000 claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/04—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/14—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated
- G01G23/16—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated electrically or magnetically operated
- G01G23/163—Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated electrically or magnetically operated involving digital counting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/48—Temperature-compensating arrangements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
A steel ladle scale weighing device without temperature drift, comprising a steel ladle scale and a programmable logic controller (PLC); a signal output end of the steel ladle scale is connected to a signal input end of the PLC; the steel ladle scale is used for measuring real-time weight of a steel ladle on-line, and transmitting the real-time weight of the steel ladle to the PLC; the PLC is used for determining a weight of a no-load steel ladle without temperature drift, a weight of the steel ladle before casting, a weight of the steel ladle after casting, and a weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle. There may be an analogue to digital module and a wireless module. The scale may comprise a weight sensor and a temperature sensor connected to the PLC. There may be a display screen. The method involves a no-load stage for performing zero tracking; a whole ladle placing stage for performing weight point tracking; and a ladle take-way stage for recording a weight value after the casting-completed steel ladle is taken away. Another aspect is a system.
Description
STEEL LADLE SCALE WEIGHTING DEVICE, WEIGHING METHOD
AND SYSTEM WITHOUT DRIFT
TECHNICAL FIELD
100011 The present relates to the field of steel ladle scales, and in particular relates to a steel ladle scale weighing device, weighing method and system without temperature drift.
BACKGROUND ART
100021 Steel ladle scale is an auxiliary device for metering and weighting molten steel and steel ladles in the production and processing of iron works and steel works. When the high-temperature molten iron and the high-temperature molten steel in operation are weighed on-line in the iron works and steel works, the steel ladle is placed on the steel ladle scale, and the steel ladle scale is used for measuring the weight of the steel ladle or the molten steel. However, during on-line weighing, the temperature of the high-temperature molten steel in the steel ladle will be transferred to a weighing sensor in the steel ladle scale through the steel ladle, which makes the weighing sensor generate temperature drift, affecting the accuracy of the weighing result.
SUMMARY
100031 An objective of the present disclosure is to provide a steel ladle scale weighing device, weighing method and system without temperature drift to achieve weighing without temperature drift and to improve the accuracy of the on-line metering.
100041 To achieve the objective, the present disclosure provides the following technical solutions: 100051 A steel ladle scale weighing device without temperature drift comprises a steel ladle scale and a programmable logic controller (PLC); 100061 a signal output end of the steel ladle scale is connected to a signal input end of the PLC; 100071 the steel ladle scale is used for measuring real-time weight of a steel ladle on-line, and transmitting the real-time weight of the steel ladle to the PLC; and 100081 the PLC is used for determining a weight of a no-load steel ladle without temperature drift, a weight of the steel ladle before casting, a weight of the steel ladle after casting, and a weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle.
100091 Alternatively, the device further comprises an analogue to digital module (AD module) and a wireless module; 100101 a signal output end of the steel ladle scale is connected to a signal input end of the AD module, and a signal output end of the AD module is connected to the PLC via the wireless module; and 100111 the AD module is used for converting a weight analog signal measured by the steel ladle scale into a weight digital signal, and transmitting the weight digital signal to the PLC via the wireless module.
100121 Alternatively, the steel ladle scale comprises a weight sensor and a temperature sensor; 100131 a signal output end of the weight sensor and a signal output end of the temperature sensor are both connected to the signal input end of the PLC; 100141 the weight sensor is used for measuring the real-time weight of the steel ladle on-line and transmitting the real-time weight of the steel ladle to the PLC; and 100151 the temperature sensor is used for measuring real-time temperature of the steel ladle on-line and transmitting the real-time temperature of the steel ladle to the PLC. 100161 Alternatively, the device further comprises a display screen; 100171 the signal output end of the PLC is connected to the display screen, the display screen is used for displaying the weight of a no-load steel ladle without temperature drift, the weight of the steel ladle before casting, the weight of the steel ladle after casting, and the weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle.
100181 A steel ladle scale weighing method without temperature drift comprises the following steps: 100191 continuously monitoring a weight value output after a no-load steel ladle is placed on the steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value; 100201 performing zero tracking on the weight of the no-load steel ladle to acquire the weight of the no-load steel ladle; 100211 placing a steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel ladle at the first time; 100221 performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed; 100231 recording a weight value m after the casting-completed steel ladle is taken away; and 100241 determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m).
100251 Alternatively, the step of performing zero tracking on the weight of the no-load steel ladle to acquire the weight of the no-load steel ladle specifically comprises: 100261 judging whether the current weight change value is greater than a second change set value to acquire a judgment result; 100271 if the judgment result is that the current weight change value is not greater than the second change set value, zeroing the current weight change value; and 100281 if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
100291 Alternatively, the steps of performing weight point tracking on the weight of the steel ladle containing casting liquid in the casting process and recording a weight value n of the steel ladle when the casting is completed specifically comprise: 100301 if a weight change rate is greater than or equal to a rate threshold value, not recording the current weight value; [0031] if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value, zeroing the weight change value per unit time interval; 100321 if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value, continuously monitoring the weight change value of the steel ladle; and 100331 if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, judging that the casting is completed at the current time point, and recording a weight value n of the current steel ladle.
100341 A steel ladle scale weighing system without temperature drift comprises: 100351 a stable stage judgment module for continuously monitoring a weight value output after a no-load steel ladle is placed on the steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value; 100361 a zero-tracking module for performing zero tracking on a weight of the no-load steel ladle to acquire the weight of the no-load steel ladle; 100371 a recording module for placing a steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel ladle at the first time; 100381 a weight point tracking module for performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed; 100391 a steel ladle take-away weight recording module for recording a weight value m after the casting-completed steel ladle is taken away; and 100401 a casting liquid weight determination module for determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as 100411 Alternatively, the zero-tracking module specifically comprises: 100421 a judgment sub-module for judging whether the current weight change value is greater than a second change set value to acquire a judgment result; 100431 a first zeroing sub-module for zeroing the current weight change value if the judgment result is that the current weight change value is not greater than the second change set value; and 100441 a no-load steel ladle weight determination submodule for, if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
100451 Alternatively, the weight point tracking module specifically comprises: 100461 a rate comparison sub-module for not recording the current weight value if a weight change rate is greater than or equal than a rate threshold value; 100471 a second zeroing submodule for zeroing the weight change value per unit time interval if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value; 100481 a monitoring submodule for continuously monitoring a weight change value of the steel ladle if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value; and 100491 a casting completion judgment submodule for judging that the casting is completed at the current time point if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, and recording a weight value n of the current steel ladle.
100501 In accordance with specific embodiment provided by the present disclosure, the present disclosure discloses the following technical effects.
100511 A steel ladle scale weighing device, weighing method and system without temperature drift are provided. A steel ladle scale measures a real-time weight of a steel ladle on-line, and a PLC determines a weight of a no-load steel ladle without temperature drift, a weight of the steel ladle before casting, a weight of the steel ladle after casting, and a weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle. The measurement process is divided into three stages: a no-load stage for performing zero tracking to acquire the weight of the no-load steel ladle; a whole ladle placing stage for performing weight point tracking to record a weight value of the steel ladle when completing the casting; and a ladle take-way stage for recording a weight value after the casting-completed steel ladle is taken away to finally obtain the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m). Therefore, the weighing without temperature drift is achieved, and the accuracy of the on-line metering is improved.
BRIEF DESCRIPTION OF THE DRAWINGS
100521 To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
100531 FIG. I is a structure diagram of a steel ladle scale weighing device without temperature drift provided by the present disclosure; 100541 FIG. 2 is a flow chart of a steel ladle scale weighing method without temperature drift provided by the present disclosure.
DETAILED DESCRIPTION OF THE EMBODIMENTS
100551 The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.
100561 An objective of the present disclosure is to provide a steel ladle scale weighing device, weighing method and system without temperature drift to achieve weighing without temperature drift and to improve the accuracy of the on-line metering.
100571 To make the objectives, features and advantages of the present disclosure more apparently, the following describes the present disclosure in detail with reference to the accompanying drawings and the specific embodiments.
100581 A steel ladle scale weighing device without temperature drift is provided. As shown in FIG. 1, the device comprises a steel ladle scale and a PLC.
100591 A signal output end of the steel ladle scale is connected to a signal input end of the PLC. The steel ladle scale is used for measuring real-time weight of a steel ladle on-line, and transmitting the real-time weight of the steel ladle to the PLC. The PLC is used for determining a weight of a no-load steel ladle without temperature drift, a weight of the steel ladle before casting, a weight of the steel ladle after casting, and a weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle. The casting liquid is molten iron or molten steel.
100601 In an example, the device further comprises an AD module and a wireless module. A signal output end of the steel ladle scale is connected to a signal input end of the AD module, and a signal output end of the AD module is connected to the PLC via the wireless module. The AD module is used for converting a weight analog signal measured by the steel ladle scale into a weight digital signal, and transmitting the weight digital signal to the PLC via the wireless module.
100611 In an example, the steel ladle scale comprises a weight sensor and a temperature sensor. A signal output end of the weight sensor and a signal output end of the temperature sensor are both connected to the signal input end of the PLC. The weight sensor is used for measuring a real-time weight of the steel ladle on-line and transmitting the real-time weight of the steel ladle to the PLC. The temperature sensor is used for measuring real-time temperature of the steel ladle on-line and transmitting the real-time temperature of the steel ladle to the PLC.
100621 In an example, the device further comprises a display screen. The signal output end of the PLC is connected to the display screen, the display screen is used for displaying the weight of the no-load steel ladle without temperature drift, the weight of the steel ladle before casting, the weight of the steel ladle after casting, and the weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle. Therefore, the worker can conveniently master the temperature information and the weight information in real time.
100631 A steel ladle scale weighing method without temperature drift is further provided. As shown in FIG. 2, the method comprises the following steps: 100641 step 101, continuously monitoring a weight value output after a no-load steel ladle is placed on a steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value.
100651 As the no-load steel ladle has a certain temperature at first, the temperature of the steel ladle in the natural environment will gradually decrease to be finally stable, and the weight of the no-load ladle will keep changing during the temperature change.
Therefore, it is necessary to judge whether the weight of the no-load steel ladle is stable or not at first to eliminate the temperature drift effect generated by the weight sensor in the steel ladle scale due to the temperature. In an example, the monitoring is continued for 4 to 5 s, if the weight change per second is smaller than a set value t, the weight is considered to be stable.
100661 Step 102, performing zero tracking on the weight of the no-load steel ladle to acquire the weight of the no-load steel ladle.
100671 The zero tracking is carried out under a stable condition: zeroing the weight as long as the current weight change does not exceed a weight set value s; and if the increment of the steel ladle exceeds the set value, the weight is considered to be stable after continuously monitoring for 4 to 5 s, and the weight change per second is less than a set value P, changing the weight of the no-load steel ladle to the current weight.
100681 In an example, the method specifically comprises: 100691 judging whether the current weight change value is greater than a second change set value to acquire a judgment result; 100701 if the judgment result is that the current weight change value is not greater than the second change set value, zeroing the current weight change value; and 100711 if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
100721 The step 101 and the step 102 are in the no-load stage 100731 Step 103, placing the steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel lathe at the first time.
100741 Step 104, performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed.
100751 The method specifically comprises: 100761 if a weight change rate is greater than or equal to a rate threshold value, not recording the current weight value; 100771 if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value, zeroing the weight change value per unit time interval; 100781 if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value, continuously monitoring the weight change value of the steel ladle; and 100791 if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, judging that the casting is completed at the current time point, arid recording a weight value n of the current steel ladle.
100801 In an example, after the steel ladle is placed on the scale, as the molten iron or molten steel in the steel ladle needs to be poured for casting, the temperature changes faster and the weight changes more at this time, and the weight point tracking is employed at this time That is, when the weight change within 1 s is smaller than the set threshold, the weight corresponding to the time is set to be a. Counting is not carried out if the weight changes faster. After the weight is stable, that is, the weight is considered to be stable after continuously monitoring for 4 to 5 s and the weight change per second is smaller than a set value 1, it is considered that the casting has completed at this time point, and the current weight n (value of the steel ladle) is recorded.
100811 The step 103 and the step 104 are in the whole ladle placing stage.
100821 Step 105, recording a weight value m after taking away the casting-completed steel ladle.
100831 In the ladle take-way stage, after the steel ladle is taken away, the current weight is not zero due to the influence of the temperature.
100841 Step 106, determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m).
100851 The measurement process is divided into three stages: a no-load stage for performing zero tracking to acquire the weight of the no-load steel ladle; a whole ladle placing stage for performing weight point tracking to record a weight value of the steel ladle when completing the casting; and a ladle take-way stage for recording a weight value after the casting-completed steel ladle is taken away to finally obtain the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m). Therefore, the weighing without temperature drift is achieved, and the accuracy of the on-line metering is improved.
100861 A steel ladle scale weighing system without temperature drift is further provided. The system comprises: 100871 a stable stage judgment module for continuously monitoring a weight value output after a no-load steel ladle is placed on the steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value; 100881 a zero-tracking module for performing zero tracking on a weight of the no-load steel ladle to acquire the weight of the no-load steel ladle; 100891 a recording module for placing a steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel ladle at the first time; 100901 a weight point tracking module for performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed; 100911 a steel ladle take-away weight recording module for recording a weight value m after the casting-completed steel ladle is taken away; and 100921 a casting liquid weight determination module for determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m).
100931 The zero-tracking module specifically comprises: 100941 a judgment sub-module for judging whether the current weight change value is greater than a second change set value to acquire a judgment result; 100951 a first zeroing sub-module for zeroing the current weight change value if the judgment result is that the current weight change value is not greater than the second change set value; and 100961 a no-load steel ladle weight determination submodule for, if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
100971 The weight point tracking module specifically comprises: 100981 a rate comparison sub-module for not recording the current weight value if a weight change rate is greater than or equal than a rate threshold value; 100991 a second zeroing submodule for zeroing the weight change value per unit time interval if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value; 1001001a monitoring submodule for continuously monitoring a weight change value of the steel ladle if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value; and [00101]a casting completion judgment submodule for judging that the casting is completed at the current time point if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, and recording a weight value n of the current steel ladle.
[00102]1-he various embodiments in the specification are described in a progressive manner, the differences from other embodiments are illustrated in each embodiment, and reference can be made to other embodiments for understanding the same or similar parts of the embodiments. Since the system disclosed by the embodiments corresponds to the method disclosed by the embodiments, the description is relatively simple, and the reference is made to the descriptions in the method for related parts.
1001031Several examples are used for illustration of the principles and implementation methods of the present disclosure. The description of the embodiments is merely used to help illustrate the method and its core principles of the present disclosure. In addition, a person of ordinary skill in the art can make various modifications in terms of specific embodiments and scope of application in accordance with the teachings of the present disclosure. In conclusion, the scope of the present invention is to be determined with reference to the following claims.
Claims (10)
- WHAT IS CLAIMED IS: 1. A steel ladle scale weighing device without temperature drift, comprising a steel ladle scale and a programmable logic controller; a signal output end of the steel ladle scale is connected to a signal input end of the programmable logic controller; the steel ladle scale is used for measuring real-time weight of a steel ladle on-line, and transmitting the real-time weight of the steel ladle to the programmable logic controller; the programmable logic controller is used for determining a weight of a no-load steel ladle without temperature drift, a weight of the steel ladle before casting, a weight of the steel ladle after casting, and a weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle.
- 2. The steel ladle scale weighing device without temperature drift according to claim 1, wherein the device further comprises an analogue to digital module and a wireless module; a signal output end of the steel ladle scale is connected to a signal input end of the analogue to digital module, and a signal output end of the analogue to digital module is connected to the programmable logic controller via the wireless module; the analogue to digital module is used for converting a weight analog signal measured by the steel ladle scale into a weight digital signal, and transmitting the weight digital signal to the programmable logic controller via the wireless module.
- 3. The steel ladle scale weighing device without temperature drift according to claim 1 or 2, wherein the steel ladle scale comprises a weight sensor and a temperature sensor, a signal output end of the weight sensor and a signal output end of the temperature sensor are both connected to the signal input end of the programmable logic controller; the weight sensor is used for measuring the real-time weight of the steel ladle on-line and transmitting the real-time weight of the steel ladle to the programmable logic control] er; and the temperature sensor is used for measuring real-time temperature of the steel ladle on-line and transmitting the real-time temperature of the steel ladle to the programmable logic controller.
- 4. The steel ladle scale weighing device without temperature drift according to claim 1 or 2, wherein the device further comprises a display screen; the signal output end of the programmable logic controller is connected to the display screen, the display screen is used for displaying the weight of a no-load steel ladle without temperature drift, the weight of the steel ladle before casting, the weight of the steel ladle after casting, and the weight of casting liquid contained in the steel ladle before casting according to the real-time weight of the steel ladle.
- 5. A steel ladle scale weighing method without temperature drift, comprising the following steps: continuously monitoring a weight value output after a no-load steel ladle is placed on the steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value; performing zero tracking on the weight of the no-load steel ladle to acquire the weight of the no-load steel ladle; placing a steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel ladle at the first time; performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed; recording a weight value m after the casting-completed steel ladle is taken away; and determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m).
- 6. The steel ladle scale weighing method without temperature drift according to claim 5, wherein the step of performing zero tracking on the weight of the no-load steel ladle to acquire the weight of the no-load steel ladle specifically comprises: judging whether the current weight change value is greater than a second change set value to acquire a judgment result; if the judgment result is that the current weight change value is not greater than the second change set value, zeroing the current weight change value; and if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
- 7. The steel ladle scale weighing method without temperature drift according to claim 5, wherein the steps of performing weight point tracking on the weight of the no-load steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed specifically comprise: if a weight change rate is greater than or equal to a rate threshold value, not recording the current weight value; if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value, zeroing the weight change value per unit time interval; if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value, continuously monitoring the weight change value of the steel ladle; and if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, judging that the casting is completed at the current time point, and recording a weight value n of the current steel ladle.
- 8. A steel ladle scale weighing system without temperature drift, comprising: a stable stage judgment module for continuously monitoring a weight value output after a no-load steel ladle is placed on the steel ladle scale, and judging that the steel ladle is in a weight stable stage if a weight change value per unit time interval in a continuous period of time is smaller than a first change set value; a zero-tracking module for performing zero tracking on a weight of the no-load steel ladle to acquire the weight of the no-load steel ladle; a recording module for placing a steel ladle containing casting liquid on the steel ladle scale, and recording a weight value a of the steel ladle at the first time; a weight point tracking module for performing weight point tracking on the weight of the steel ladle containing the casting liquid in the casting process, and recording a weight value n of the steel ladle when the casting is completed; a steel ladle take-away weight recording module for recording a weight value m after the casting-completed steel ladle is taken away; and a casting liquid weight determination module for determining the weight of the casting-completed steel ladle as n-m, and the weight of the casting liquid contained in the steel ladle before casting as a-(n-m).
- 9. The steel ladle scale weighing system without temperature drift according to claim 8, wherein the zero-tracking module specifically comprises: a judgment sub-module for judging whether the current weight change value is greater than a second change set value to acquire a judgment result; a first zeroing sub-module for zeroing the current weight change value if the judgment result is that the current weight change value is not greater than the second change set value; and a no-load steel ladle weight determination submodule for, if the judgment result is that the current weight change value is greater than a second change set value, taking a weight value measured by the steel ladle scale as the weight of the no-load steel ladle when the weight change value per unit time interval in a continuous period of time is smaller than a third change set value.
- 10. The steel ladle scale weighing system without temperature drift according to claim 8, wherein the weight point tracking module specifically comprises: a rate comparison sub-module for not recording the current weight value if a weight change rate is greater than or equal than a rate threshold value; a second zeroing submodule for zeroing the weight change value per unit time interval if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is smaller than a fourth change set value; a monitoring submodule for continuously monitoring a weight change value of the steel ladle if the weight change rate is smaller than the rate threshold value and the weight change value per unit time interval is greater than or equal to the fourth change set value; and a casting completion judgment submodule for judging that the casting is completed at the current time point if the weight change value per unit time interval in the continuous period of time is smaller than a fifth change set value, and recording a weight value n of the current steel ladle.
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| CN202210297658.8A CN114659599B (en) | 2022-03-24 | 2022-03-24 | Weighing device, weighing method and system of ladle scale without temperature drift |
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| GB202211395D0 GB202211395D0 (en) | 2022-09-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63299850A (en) * | 1987-05-29 | 1988-12-07 | Toyota Motor Corp | Apparatus for adjusting molten metal supplying quantity |
| KR101676171B1 (en) * | 2015-06-05 | 2016-11-15 | 주식회사 포스코 | Apparatus and Method for Measuring melt weight in molten steel ladle car |
| CN110328357A (en) * | 2019-08-21 | 2019-10-15 | 河南卫华特种车辆有限公司 | Pouring molten steel control method and pouring truck |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2203015A1 (en) * | 1971-01-29 | 1972-08-17 | Outokumpu Oy | Weight controlled castings - using computer weight controlled casting ladles |
| JP2794491B2 (en) * | 1991-03-05 | 1998-09-03 | 本田技研工業株式会社 | Pouring control method |
| JPH1128560A (en) * | 1997-07-08 | 1999-02-02 | Ube Ind Ltd | Molten metal supplying device and molten metal supplying method |
| DE10111294A1 (en) * | 2001-03-09 | 2002-09-12 | Sms Demag Ag | Weighing metallurgical vessel, especially tundish in steel continuous casting device, involves determining filling weight via hydraulic pressures in cylinder chambers with respect to empty weight of vessel |
| CN2804816Y (en) * | 2005-07-05 | 2006-08-09 | 济南金钟电子衡器股份有限公司 | Steel ladle electronic scale |
| JP5030598B2 (en) * | 2007-01-15 | 2012-09-19 | 株式会社神戸製鋼所 | Weighing device and container support device provided with the weighing device |
| CN202018321U (en) * | 2010-08-25 | 2011-10-26 | 福州科杰电子衡器有限公司 | High-temperature steel ladle scale |
| CN202885936U (en) * | 2012-10-19 | 2013-04-17 | 河北省首钢迁安钢铁有限责任公司 | Self-operated measuring unit for steel ladle heat condition |
| CN104999043B (en) * | 2014-04-17 | 2017-04-26 | 宝山钢铁股份有限公司 | Online measuring device and method for opening degree of sliding nozzle of continuous casting ladle |
| CN206114073U (en) * | 2016-10-14 | 2017-04-19 | 广东理工学院 | Non ferrous metal weighing equipment that casts |
| CN107626913A (en) * | 2017-11-16 | 2018-01-26 | 苏州石川制铁有限公司 | A kind of casting machine weighing device for realizing fine management through quantification |
| CN110640130B (en) * | 2019-08-30 | 2021-06-08 | 益阳鸿源稀土有限责任公司 | Rare earth metal molten liquid pouring system |
| CN211464778U (en) * | 2020-01-15 | 2020-09-11 | 唐钢国际工程技术股份有限公司 | Continuous casting machine ladle slag discharge detection device |
| CN114030995A (en) * | 2021-08-09 | 2022-02-11 | 承德石油高等专科学校 | Steel mill workshop crown block scheduling method and system |
-
2022
- 2022-03-24 CN CN202210297658.8A patent/CN114659599B/en active Active
- 2022-08-04 GB GB2211395.5A patent/GB2616928B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63299850A (en) * | 1987-05-29 | 1988-12-07 | Toyota Motor Corp | Apparatus for adjusting molten metal supplying quantity |
| KR101676171B1 (en) * | 2015-06-05 | 2016-11-15 | 주식회사 포스코 | Apparatus and Method for Measuring melt weight in molten steel ladle car |
| CN110328357A (en) * | 2019-08-21 | 2019-10-15 | 河南卫华特种车辆有限公司 | Pouring molten steel control method and pouring truck |
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| Publication number | Publication date |
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| CN114659599B (en) | 2024-03-26 |
| CN114659599A (en) | 2022-06-24 |
| GB202211395D0 (en) | 2022-09-21 |
| GB2616928B (en) | 2024-03-20 |
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