CN114346230A - Method for calculating weight of molten iron in molten iron transport vehicle - Google Patents
Method for calculating weight of molten iron in molten iron transport vehicle Download PDFInfo
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- CN114346230A CN114346230A CN202111612579.3A CN202111612579A CN114346230A CN 114346230 A CN114346230 A CN 114346230A CN 202111612579 A CN202111612579 A CN 202111612579A CN 114346230 A CN114346230 A CN 114346230A
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Abstract
The invention discloses a method for calculating the weight of molten iron in a molten iron transport vehicle, relates to the technical field of Internet of things, and aims to solve the problems that the conventional operators are difficult to observe the liquid level of the molten iron, the risks of molten iron overflow and splashing easily occur, inquiry and recording are carried out in a manual mode, the data size is large, the data are staggered back and forth, the error rate is high, and the workload of manual work and busy work is large. Step 1: acquiring weighing data, namely acquiring original weight data of the vehicle-mounted weighing scale in real time; step 2: monitoring the communication state, wherein the detection state is divided into whether the molten iron transport vehicle is in a molten iron outlet parking space and the communication state of the monitoring weighing scale; and step 3: judging the working state of the molten iron transport vehicle, and judging that the molten iron is poured into a workshop when the original weight is zero; when the original weight is larger than the rated tare weight and the original weight is not changed any more, judging that the scheduling is waited; and 4, step 4: and calculating the weight of the molten iron, taking the original weighing data as the total weight of the foundry ladle, and judging the tare weight and the net weight of the molten iron.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a method for calculating the weight of molten iron in a molten iron transport vehicle.
Background
Blast furnace production in steel plants is a continuous process, several thousand tons of molten iron in each blast furnace per day are delivered to a steel-making workshop through a molten iron carrier vehicle, and the molten iron carrier vehicle is a special vehicle for metallurgical enterprises to deliver blast furnace molten iron to steel plants, pig-casting machines and foundries for steel making, iron blocks or cast ingot molds and the like.
With the increasing demand of iron and steel plants for convenient molten iron transportation, molten iron transportation is a work which needs to be cautious, in the traditional implementation scheme, in order to prevent molten iron from overflowing during the tapping process of a blast furnace, configuration personnel are required to observe the molten iron liquid level condition of the molten iron ladle, but a lot of smoke and dust are generated during the tapping of the blast furnace, operators are very difficult to observe the molten iron liquid level, and the risk of molten iron overflowing and splashing also exists, after the tapping of the blast furnace is finished, the molten iron weight needs to be connected into a metering system, although the weighing data can be measured by a track scale, the track scale basically does not support the connection of the metering system, the weight data of the track scale can only be manually recorded into the metering system, inquiry and recording are carried out in a manual mode, the data volume is large, the data is staggered back and forth, the error rate is high, the labor is busy, the workload is large, in the traditional implementation scheme, no matter in the blast furnace tapping process, the rising condition of the molten iron liquid level needs to be monitored manually, or in the metering process after tapping is finished, metering data still needs to be counted and reported manually, the two links have high technical requirements on operators, and uncontrollable human errors exist.
Disclosure of Invention
The invention aims to provide a method for calculating the weight of molten iron in a molten iron transport vehicle, which aims to solve the problems that in the background technology, the risk that molten iron overflow and splashing easily occurs due to difficulty in observing the liquid level of the molten iron by an operator is provided, inquiry and recording are carried out in a manual mode, the data volume is large, the data is staggered back and forth, the error rate is high, and the workload is heavy.
In order to achieve the purpose, the invention provides the following technical scheme: a method for calculating the weight of molten iron in a molten iron transport vehicle comprises the following steps:
step 1: acquiring weighing data, namely acquiring original weight data of the vehicle-mounted weighing scale in real time;
step 2: monitoring the communication state, wherein the detection state is divided into whether the molten iron transport vehicle is in a molten iron outlet parking space and the communication state of the monitoring weighing scale;
and step 3: judging the working state of the molten iron transport vehicle, and judging that the molten iron is poured into a workshop when the original weight is zero; when the original weight is larger than the rated tare weight and the original weight is not changed any more, judging that the scheduling is waited;
and 4, step 4: and calculating the weight of the molten iron, taking the original weighing data as the total weight of the foundry ladle, and judging the tare weight and the net weight of the molten iron.
Through adopting above-mentioned technical scheme, based on the weight of above-mentioned process real time monitoring molten iron, the excessive risk of molten iron when can preventing the blast furnace tapping also can provide accurate production data for measurement system.
The weighing scale comprises an electronic scale and a hydraulic scale based on the step 1.
Through adopting above-mentioned technical scheme, the weighing scale can be on-vehicle electronic scale, also can be on-vehicle hydraulic pressure balance, selects the configuration according to the producer of difference.
Further, based on step 2, when the weight message of the weighing scale cannot be received, it is determined that the weighing scale is abnormal, when the number of times of abnormality of the weighing scale exceeds a certain threshold, it is determined that the weighing scale has failed, and when the weight message of the weighing scale can be received, it is determined that the weighing scale has failed to recover or the weighing scale is normal.
By adopting the technical scheme, the state of the weighing scale is intelligently judged, and the weighing scale can be normally and accurately weighed.
Further, based on step 2, when the service inquiry message cannot be received, it is determined that the service channel is abnormal, when the number of times of the abnormal service channel exceeds a certain threshold, it is determined that the communication of the service channel is disconnected, that is, the molten iron transporting vehicle leaves the taphole, and when the service inquiry message can be received, it is determined that the communication of the service channel is normal, that is, the molten iron transporting vehicle enters the taphole.
By adopting the technical scheme, whether the molten iron transport vehicle enters or exits the taphole is judged based on the service inquiry message, so that intelligent unmanned management is realized.
Further, based on the service inquiry message and the molten iron carrier vehicle notification message in the step 2, the monitoring of the communication state includes two parts, namely monitoring whether the molten iron carrier vehicle is in a molten iron outlet parking space and monitoring the communication state of the weighing scale.
By adopting the technical scheme, the service inquiry message and the molten iron transport vehicle notification message contain the number field of the taphole.
Further, based on the step 2, when the molten iron carrier entering notification message is received, it is determined that the molten iron carrier enters the taphole, and when the molten iron carrier leaving notification message is received, it is determined that the molten iron carrier leaves the taphole.
By adopting the technical scheme, the state of the notification message is set to judge whether the molten iron transportation leaves or enters currently.
And further, when the molten iron transport vehicle enters the iron outlet based on the step 3 and the original weight is changed from small to large, the blast furnace is judged to be connected with iron.
By adopting the technical scheme, the rated tare weight means that the empty weight of each ladle when leaving the factory is constant.
Further, based on the step 4, when the molten iron transport vehicle is in the blast furnace iron receiving state, the tare weight of the ladle is kept unchanged, the net weight of the molten iron is equal to the total weight of the ladle minus the tare weight of the ladle, the net weight of the molten iron and the total weight of the ladle are increased synchronously, when the molten iron transport vehicle is in the waiting dispatching state, if the tare weight of the ladle is greater than the rated tare weight, the tare weight of the ladle is not updated, and if the tare weight of the ladle is equal to zero, the original weighing data is used as the tare weight of the ladle, at the moment, the tare weight of the ladle is equal to the total weight of the ladle, and the tare weight of the molten iron is zero.
By adopting the technical scheme, the accuracy can be provided for calculating the molten iron by setting the iron receiving state and the waiting dispatching state of the blast furnace.
Further, based on the fact that the molten iron transport vehicle is in the workshop iron pouring state in the step 4, the tare weight of the ladle, the total weight of the ladle and the net weight of the molten iron are all reset to be zero.
By adopting the technical scheme, the tare weight of the ladle is updated only when the molten iron carrier vehicle is in the waiting dispatching state, any other working state can not change the tare weight of the ladle, and when the molten iron carrier vehicle is restarted after flameout, the molten iron carrier vehicle is judged to be in the waiting dispatching state no matter the molten iron carrier vehicle is positioned in a taphole or leaves the taphole, namely the original weighing data is used as the total weight of the ladle and the tare weight of the ladle, the tare weight of the ladle is equal to the total weight of the ladle at the moment, and the net weight of the molten iron is zero.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the method for calculating the weight of the molten iron in the molten iron transport vehicle, the weight of the molten iron can be accurately calculated through the method, so that the weight of the molten iron can be monitored in real time, the risk of molten iron overflow during blast furnace tapping can be prevented, and accurate production data can be provided for a metering system.
Drawings
FIG. 1 is a block diagram of a system according to an embodiment of the present invention;
FIG. 2 is a flow chart of the communication status monitoring operation of the electronic scale according to the technical solution of the present invention;
FIG. 3 is a flow chart of the hydraulic scale communication status monitoring operation according to the technical solution of the present invention;
fig. 4 is a flow chart of a service channel communication status monitoring operation according to the technical solution of the present invention;
fig. 5 is a schematic view of an operating state of a molten iron transporting vehicle according to the technical scheme of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: a method for calculating the weight of molten iron in a molten iron transport vehicle comprises the following steps:
step 1: acquiring weighing data, namely acquiring original weight data of the vehicle-mounted weighing scale in real time;
step 2: monitoring the communication state, wherein the detection state is divided into whether the molten iron transport vehicle is in a molten iron outlet parking space and the communication state of the monitoring weighing scale;
and step 3: judging the working state of the molten iron transport vehicle, and judging that the molten iron is poured into a workshop when the original weight is zero; when the original weight is larger than the rated tare weight and the original weight is not changed any more, judging that the scheduling is waited;
and 4, step 4: and calculating the weight of the molten iron, taking the original weighing data as the total weight of the foundry ladle, and judging the tare weight and the net weight of the molten iron.
The weighing scale based on the step 1 comprises an electronic scale and a hydraulic scale.
And (3) judging that the weighing scale is abnormal when the weight message of the weighing scale cannot be received based on the step (2), judging that the weighing scale is in fault when the abnormal times of the weighing scale exceed a certain threshold, and judging that the weighing scale is in fault recovery or the weighing scale is normal when the weight message of the weighing scale can be received.
And (3) judging that the service channel is abnormal when the service inquiry message cannot be received based on the step (2), judging that the communication of the service channel is disconnected when the abnormal times of the service channel exceed a certain threshold value, namely the molten iron transport vehicle leaves the taphole, and judging that the communication of the service channel is normal when the service inquiry message can be received, namely the molten iron transport vehicle enters the taphole.
Based on the step 2, the service inquiry message and the molten iron carrier vehicle notification message contain a taphole number field, the monitoring of the communication state is divided into two parts of monitoring whether the molten iron carrier vehicle is at a taphole parking space and monitoring the communication state of the weighing scale, and the service inquiry message and the molten iron carrier vehicle notification message contain the taphole number field.
And when the molten iron transport vehicle driving-in notification message is received, judging that the molten iron transport vehicle enters the taphole.
And 3, when the molten iron transport vehicle enters the taphole based on the step 3, judging that the blast furnace is connected with iron when the original weight is changed from less to more.
Based on the step 4, when the molten iron transport vehicle is in a blast furnace iron receiving state, keeping the tare weight of the ladle unchanged, wherein the net weight of the molten iron is equal to the total weight of the ladle minus the tare weight of the ladle, the net weight of the molten iron and the total weight of the ladle are increased synchronously, when the molten iron transport vehicle is in a waiting dispatching state, if the tare weight of the ladle is larger than the rated tare weight, the tare weight of the ladle is not updated, and the tare weight of the ladle is equal to zero, taking the original weighing data as the tare weight of the ladle, wherein the tare weight of the ladle is equal to the total weight of the ladle, and the tare weight of the molten iron is zero.
And (4) resetting the tare weight of the ladle, the total weight of the ladle and the net weight of the molten iron to zero when the molten iron transport vehicle is in the iron pouring state in the workshop based on the step 4.
The working principle is as follows: firstly, two types of weighing scales of a molten iron transport vehicle are mutually master and slave, a vehicle-mounted electronic scale is used as a main weighing scale, a vehicle-mounted hydraulic scale is used as a spare weighing scale, weighing modules collect and cache original data of the vehicle-mounted electronic scale and the vehicle-mounted hydraulic scale according to preset period distribution, the weighing modules are only responsible for collecting the original weighing data, at the moment, the detection of a communication state is divided into two parts, firstly, whether the molten iron transport vehicle is in a taphole parking space is monitored, and secondly, the communication state of the weighing scales is monitored, as shown in figures 2 and 3, when a weight message of the vehicle-mounted electronic scale or the vehicle-mounted hydraulic scale cannot be received, the weighing is judged to be abnormal, the weighing is not started, when the weight message of the vehicle-mounted electronic scale or the vehicle-mounted hydraulic scale can be received, the vehicle-mounted hydraulic scale is judged to be normal, and normal weighing operation can be started normally; the device is provided with a wired channel and a wireless channel, wherein the wired channel is an RS485 channel, the wireless channel is a Lora channel, and the wired channel and the wireless channel are mutually a main channel and a standby channel, and as shown in fig. 4, whether the current wired channel and the current wireless channel are in a normal state is judged according to whether a service inquiry message can be received or not; when the molten iron transport vehicle enters the taphole, the wired channel and the wireless channel are disconnected, the state of the molten iron transport vehicle is judged at the moment, as shown in fig. 5, when the original weight is zero, the workshop iron dumping is judged, when the original weight is greater than the rated tare weight and the original weight is not changed any more, the workshop iron dumping is judged, the dispatching waiting is judged, when the molten iron transport vehicle enters the taphole, and when the original weight is changed from less to more, the blast furnace iron receiving is judged; when the molten iron transport vehicle is restarted after flameout, no matter the molten iron transport vehicle is positioned in the taphole or leaves the taphole, the molten iron transport vehicle is judged to be in a waiting dispatching state, namely the original weighing data is used as the total weight of the foundry ladle and the tare weight of the foundry ladle, at the moment, the tare weight of the foundry ladle is equal to the total weight of the foundry ladle, and the net weight of the molten iron is zero.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A method for calculating the weight of molten iron in a molten iron transport vehicle is characterized by comprising the following steps: the method comprises the following steps:
step 1: acquiring weighing data, namely acquiring original weight data of the vehicle-mounted weighing scale in real time;
step 2: monitoring the communication state, wherein the detection state is divided into whether the molten iron transport vehicle is in a molten iron outlet parking space and the communication state of the monitoring weighing scale;
and step 3: judging the working state of the molten iron transport vehicle, and judging that the molten iron is poured into a workshop when the original weight is zero; when the original weight is larger than the rated tare weight and the original weight is not changed any more, judging that the scheduling is waited;
and 4, step 4: and calculating the weight of the molten iron, taking the original weighing data as the total weight of the foundry ladle, and judging the tare weight and the net weight of the molten iron.
2. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: the weighing scale comprises an electronic scale and a hydraulic scale based on the step 1.
3. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: and (3) judging that the weighing scale is abnormal when the weight message of the weighing scale cannot be received based on the step 2, judging that the weighing scale is in fault when the abnormal times of the weighing scale exceed a certain threshold, and judging that the weighing scale is in fault recovery or the weighing scale is normal when the weight message of the weighing scale can be received.
4. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: and (3) judging that the service channel is abnormal when the service inquiry message cannot be received based on the step 2, judging that the communication of the service channel is disconnected when the abnormal times of the service channel exceed a certain threshold value, namely the molten iron transport vehicle leaves the taphole, and judging that the communication of the service channel is normal when the service inquiry message can be received, namely the molten iron transport vehicle enters the taphole.
5. The method for calculating the weight of molten iron in the molten iron transportation vehicle according to claim 3, wherein the method comprises the following steps: and based on the service inquiry message and the molten iron carrier vehicle notification message, the monitoring of the communication state comprises two parts of monitoring whether the molten iron carrier vehicle is in a molten iron outlet parking space and monitoring the communication state of the weighing scale.
6. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: and (3) judging that the molten iron transport vehicle enters the taphole when the molten iron transport vehicle entering notification message is received based on the step 2, and judging that the molten iron transport vehicle leaves the taphole when the molten iron transport vehicle leaving notification message is received.
7. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: and (3) judging that the blast furnace is connected with iron when the original weight is changed from less to more when the molten iron transport vehicle enters the iron outlet based on the step 3.
8. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: based on the step 4, when the molten iron transport vehicle is in a blast furnace iron receiving state, keeping the tare weight of the ladle unchanged, wherein the net weight of the molten iron is equal to the total weight of the ladle minus the tare weight of the ladle, and the net weight of the molten iron and the total weight of the ladle are increased synchronously.
9. The method for calculating the weight of molten iron in a molten iron transporting vehicle according to claim 1, wherein: and (4) resetting the tare weight of the ladle, the total weight of the ladle and the net weight of the molten iron to zero when the molten iron transport vehicle is in the iron pouring state in the workshop based on the step 4.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140016607A (en) * | 2012-07-30 | 2014-02-10 | 현대제철 주식회사 | Device and method for measuring weight of molten iron in torpedo ladle car |
| CN105087860A (en) * | 2014-05-14 | 2015-11-25 | 宝山钢铁股份有限公司 | Automatic molten iron weighing control method of double-seat electric furnace production system |
| CN107570692A (en) * | 2017-08-23 | 2018-01-12 | 宁夏共享模具有限公司 | A kind of casting technique time data analytic method and its monitoring system of application |
| CN109084874A (en) * | 2018-08-30 | 2018-12-25 | 宁波中和衡器有限公司 | A kind of molten iron quantitative loading system and molten iron quantitative loading method |
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- 2021-12-27 CN CN202111612579.3A patent/CN114346230A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140016607A (en) * | 2012-07-30 | 2014-02-10 | 현대제철 주식회사 | Device and method for measuring weight of molten iron in torpedo ladle car |
| CN105087860A (en) * | 2014-05-14 | 2015-11-25 | 宝山钢铁股份有限公司 | Automatic molten iron weighing control method of double-seat electric furnace production system |
| CN107570692A (en) * | 2017-08-23 | 2018-01-12 | 宁夏共享模具有限公司 | A kind of casting technique time data analytic method and its monitoring system of application |
| CN109084874A (en) * | 2018-08-30 | 2018-12-25 | 宁波中和衡器有限公司 | A kind of molten iron quantitative loading system and molten iron quantitative loading method |
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