CN111854901A - Method for measuring material weight of material bin - Google Patents

Method for measuring material weight of material bin Download PDF

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Publication number
CN111854901A
CN111854901A CN202010740509.5A CN202010740509A CN111854901A CN 111854901 A CN111854901 A CN 111854901A CN 202010740509 A CN202010740509 A CN 202010740509A CN 111854901 A CN111854901 A CN 111854901A
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Prior art keywords
weight
bin
material weight
initial
feeding
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Inventor
郭永良
谷志刚
张�林
任伟
王慧
曹金坤
蔡悝
田雨
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Shanxin Software Co Ltd
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Shanxin Software Co Ltd
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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
    • G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/24—Weighing mechanism control arrangements for automatic feed or discharge
    • G01G13/247—Checking quantity of material in the feeding arrangement, e.g. discharge material only if a predetermined quantity is present

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The application discloses a silo material weight measuring method utilizes original belt weigher and static ejection of compact balance device among the material control system, acquires the material weight of feed, ejection of compact of feed bin when the business turn over material moves to combine the initial material weight of feed bin, realize the real-time measurement to the material weight in the feed bin. Compared with the existing silo material weight measuring method, the measuring method has the advantages that measuring devices such as a material level meter do not need to be arranged at the position of the silo opening, so that the problem that the dust environment at the position of the silo opening easily causes faults of the measuring devices is avoided, the problem that measured data is inaccurate due to faults of the measuring devices such as the material level meter is solved, and the problems of high fault occurrence rate, high maintenance cost, short service life and the like are also avoided. The measuring method for the material weight of the storage bin is simple in measuring process, low in failure rate, capable of stably running for a long time and high in accuracy of measured data.

Description

Method for measuring material weight of material bin
Technical Field
The application relates to the technical field of automatic control, in particular to a method for measuring the material weight of a silo.
Background
A material control system is arranged in intermediate storage such as a raw material sintering proportioning bin, a blast furnace ore coke bin, a raw material alloy bin for steel making, grain storage and the like in the metallurgical industry. The material control system is used for controlling the business turn over of material, fig. 1 is material control system's system structure graph, as shown in fig. 1, material control system includes the transportation belt, the dummy car, the belt weigher, the several stores the feed bin (1# feed bin, 2# feed bin … … n # feed bin) of material, several vibrations batcher (not marked in the figure) and several static ejection of compact balance (1# static ejection of compact balance, 2# static ejection of compact balance … … n # static ejection of compact balance), wherein, the feed bin, vibrations batcher and ejection of compact balance one-to-one.
In the actual operation process, the discharge trolley on the conveying belt discharges and charges the corresponding bin, and the materials are discharged below the bin through the vibrating feeder and are metered through the discharge scale. Each bin is fed and discharged at the same time, so that the bin can not be emptied and can not be emptied, and the accuracy of the weighing and batching process is directly influenced by the measurement of the material weight of the bin.
At present, common bin material weight measurement methods include a heavy hammer measurement method, a radar measurement method, an ultrasonic measurement method and the like. However, in the use process of these measuring methods, measuring devices such as a level meter are often required to be arranged at the bin opening of the bin, and due to the diversity and complexity of materials, the bin opening of the bin is prone to have the phenomena of dust accumulation, water accumulation and the like at the measuring opening, which causes the faults of the measuring devices such as the level meter and the like at the bin opening, on one hand, the accuracy of the measured material weight of the bin is affected, on the other hand, the measuring device cannot be stably operated on line for a long time, the maintenance work is time-consuming and labor-consuming, and the production efficiency is affected.
Disclosure of Invention
The application provides a silo material weight measuring method, which aims to solve the problems that the existing silo material weight measuring method is prone to failure in measurement, poor in system stability and capable of influencing the accuracy value and production efficiency of the measured silo material weight.
The application provides a method for measuring the material weight of a silo, which comprises the following steps:
step S10O, presetting initial material weights of n bins
Figure BDA0002606562160000011
Wherein i is a bin serial number, i is 1, 2, 3 … … n;
step S20O, obtaining the feeding and discharging instruction, wherein the feeding and discharging instruction comprises the serial number of the bin for feeding and discharging, the bin for feeding and discharging is recorded as a material transporting bin x, and the initial material weight of the bin x is recorded as the material transporting bin x
Figure BDA0002606562160000012
Wherein x is 1, 2, 3, … … or n;
step S30O, obtaining the feeding weight M of the current feeding according to the belt scalex；
Step S40O, after the material conveying bin discharges the material, reading the static discharging scale index corresponding to the material conveying bin x, namely the discharging weight Nx；
Step S50O, according to the weight M of the feedxDischarge weight NxAnd initial material weight
Figure BDA0002606562160000013
Calculating the real-time material weight G in the material transporting binx；
Step S60O, calculating the real-time material weight GxGiving initial weight to the material
Figure BDA0002606562160000014
Namely, it is
Figure BDA0002606562160000015
Obtaining new initial material weight
Figure BDA0002606562160000016
The steps S20O and thereafter are repeated.
Optionally, in step S30O, obtaining the feeding weight M of the current feeding according to the belt scalexThe method comprises the following steps of (1),
reading the initial weight of the belt scale before placing the material on the conveying belt
Figure BDA0002606562160000017
After materials are placed on the conveying belt, the accumulated material weight value of the belt scale is read
Figure BDA0002606562160000018
According to the initial cummulative weight value
Figure BDA0002606562160000019
And the cumulative weight of the variables
Figure BDA00026065621600000110
Calculating the feed weight Mx。
Alternatively, the feed weight MxIs calculated by the formula
Figure BDA0002606562160000021
Optionally, real time material weight MxIs calculated by the formula
Figure BDA0002606562160000022
The application provides a silo material weight measuring method, utilizes original device among the material control system, for example belt weigher and static ejection of compact balance, acquires the feed bin when business turn over material action, the material weight of the ejection of compact to combine the initial material weight of feed bin, realize the real-time measurement to the material weight in the feed bin.
Compared with the existing silo material weight measuring method, the measuring method has the advantages that measuring devices such as a material level meter do not need to be arranged at the position of the silo opening, so that the problem that the dust environment at the position of the silo opening easily causes faults of the measuring devices is avoided, the problem that measured data is inaccurate due to faults of the measuring devices such as the material level meter is solved, and the problems of high fault occurrence rate, high maintenance cost, short service life and the like are also avoided. The measuring method for the material weight of the storage bin is simple in measuring process, low in failure rate, capable of stably running for a long time, capable of improving production efficiency and high in accuracy of measured data.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a system block diagram of a material control system;
FIG. 2 is a flow chart of the present application of the method for measuring the bin weight.
Detailed Description
The application provides a method for measuring the material weight of a storage bin, which is used for measuring the material weight in the storage bin in real time. Fig. 2 is a flowchart of the silo material weight measuring method according to the present application, and as shown in fig. 2, the silo material weight measuring method includes:
step S10O, presetting initial material weights of n bins
Figure BDA0002606562160000023
Wherein, i is the bin serial number, i ═ 1, 2, 3 … … n. It should be noted that, by default, the stock bin is empty before the first feeding and discharging action, and therefore, the initial material weight in the stock bin is preset to be zero.
Step S20O, obtaining the feeding and discharging instruction, wherein the feeding and discharging instruction comprises the serial number of the bin for feeding and discharging, the bin for feeding and discharging is recorded as a material transporting bin x, and the initial material weight of the bin x is recorded as the material transporting bin x
Figure BDA0002606562160000024
Wherein x is 1, 2, 3, … … or n;
step S30O, obtaining the feeding weight M of the current feeding according to the belt scalex。
In the present application, in step S30O, the feeding weight M of the current feeding is obtained according to the belt scalexThe method comprises the following steps of (1),
reading the initial weight of the belt scale before placing the material on the conveying belt
Figure BDA0002606562160000025
After materials are placed on the conveying belt, the accumulated material weight value of the belt scale is read
Figure BDA0002606562160000026
According to the initial cummulative weight value
Figure BDA0002606562160000027
And the cumulative weight of the variables
Figure BDA0002606562160000028
Calculating the feed weight MxWherein the feed weight MxIs calculated by the formula
Figure BDA0002606562160000029
It should be noted that the belt weigher used in the present application is an accumulative scale, that is, all weights weighed by the belt weigher are accumulated, and even if the weighed materials are separated from the belt weigher after weighing is completed, the displayed numerical value of the belt weigher is not reset to zero; when the next material is weighed, the display value of the belt scale is the weight of the weighed material on the basis of the display value after the last weighing.
Step S40O, after the material conveying bin discharges the material, reading the static discharging scale index corresponding to the material conveying bin x, namely the discharging weight Nx. It should be noted that the static discharge scale used in this application is a static scale, i.e. when a material is placed on the static discharge scale, the static discharge scale displays the weight of the material being weighed; when the materials are weighedWhen the finished product is separated from the static discharging scale, the displayed numerical value of the static discharging scale returns to zero.
Step S50O, according to the weight M of the feedxDischarge weight NxAnd initial material weight
Figure BDA00026065621600000210
Calculating the real-time material weight G in the material transporting binx. In this application, the real-time material weight MxIs calculated by the formula
Figure BDA00026065621600000211
Step S60O, calculating the real-time material weight GxGiving initial weight to the material
Figure BDA0002606562160000031
Namely, it is
Figure BDA0002606562160000032
Obtaining new initial material weight
Figure BDA0002606562160000033
The steps S20O and thereafter are repeated. It should be noted that after the first feeding and discharging operation, the initial material weight of the storage bin is the real-time material weight after the current feeding and discharging operation, and for convenience of the next material weight measurement, the calculated real-time material weight G is used herexGiving initial weight to the material
Figure BDA0002606562160000034
As the initial material weight value of the subsequent material weight calculation process.
In order to facilitate a better understanding of the technical solution for those skilled in the art, the following will further explain the measurement process of the bunker weight measurement method by an example.
Step S10O, when the material weight measurement method of the applied storage bin is adopted to measure the material weight, the initial material weight of n storage bins is preset
Figure BDA0002606562160000035
Wherein the content of the first and second substances,i is a bin serial number, i is 1, 2 and 3 … … n;
step S20O, obtaining a feeding and discharging instruction, where the feeding and discharging instruction includes a bin serial number for performing the feeding and discharging operation, and recording the bin for performing the feeding and discharging operation as a material transporting bin x, in this example, a 2# bin is taken as an example, that is, x is 2, and the initial material weight of the material transporting bin x is set as the initial material weight of the material transporting bin x
Figure BDA0002606562160000036
Step S30O, obtaining the feeding weight M of the current feeding according to the belt scale2Specifically, before the materials are placed on the conveying belt, the initial weight value of the belt scale is read
Figure BDA0002606562160000037
After materials are placed on the conveying belt, the accumulated material weight value of the belt scale is read
Figure BDA0002606562160000038
According to the initial cummulative weight value
Figure BDA0002606562160000039
And the cumulative weight of the variables
Figure BDA00026065621600000310
Calculating the feed weight M2，
Figure BDA00026065621600000311
Step S40O, after the material conveying bin discharges the material, reading the indication number of the static discharging scale corresponding to the material conveying bin 2, namely the discharging weight N2；
Step S50O, according to the weight M of the feed2Discharge weight N2And initial material weight
Figure BDA00026065621600000312
Calculating the real-time material weight G in the material transporting bin2I.e. by
Figure BDA00026065621600000313
Step S60O, calculating the real-time material weight GxGiving initial weight to the material
Figure BDA00026065621600000314
Namely, it is
Figure BDA00026065621600000315
Obtaining new initial material weight
Figure BDA00026065621600000316
The steps S20O and subsequent steps are repeated to perform the next measurement.
The application provides a silo material weight measuring method, utilizes original device among the material control system, for example belt weigher and static ejection of compact balance, acquires the feed bin when business turn over material action, the material weight of the ejection of compact to combine the initial material weight of feed bin, realize the real-time measurement to the material weight in the feed bin.
Compared with the existing silo material weight measuring method, the measuring method has the advantages that measuring devices such as a material level meter do not need to be arranged at the position of the silo opening, so that the problem that the dust environment at the position of the silo opening easily causes faults of the measuring devices is avoided, the problem that measured data is inaccurate due to faults of the measuring devices such as the material level meter is solved, and the problems of high fault occurrence rate, high maintenance cost, short service life and the like are also avoided. The measuring method for the material weight of the storage bin is simple in measuring process, low in failure rate, capable of stably running for a long time and high in accuracy of measured data.
The above-described embodiments of the present application do not limit the scope of the present application.

Claims (4)

1. A method of measuring bin material weight, comprising:
step S10O, presetting initial material weights of n bins
Figure FDA0002606562150000011
Wherein i is a bin serial number, i is 1, 2, 3 … … n;
step S20O, obtaining the current timeThe feeding and discharging instruction comprises a bin serial number for carrying out the feeding and discharging action, the bin for carrying out the feeding and discharging action is recorded as a material transporting bin x, and the initial material weight of the material transporting bin x is recorded as
Figure FDA0002606562150000012
Wherein x is 1, 2, 3, … … or n;
step S30O, obtaining the feeding weight M of the current feeding according to the belt scalex；
Step S40O, after the material conveying bin discharges the material, reading the static discharging scale index corresponding to the material conveying bin x, namely the discharging weight Nx；
Step S50O, according to the weight M of the feedxDischarge weight NxAnd initial material weight
Figure FDA0002606562150000013
Calculating the real-time material weight G in the material transporting binx；
Step S60O, calculating the real-time material weight GxGiving initial weight to the material
Figure FDA0002606562150000014
Namely, it is
Figure FDA0002606562150000015
Obtaining new initial material weight
Figure FDA0002606562150000016
The steps S20O and thereafter are repeated.
2. The method for measuring the material weight of the storage bin as claimed in claim 1, wherein in step S30O, the feeding weight M of the current feeding is obtained according to the belt scalexThe method comprises the following steps of (1),
reading the initial weight of the belt scale before placing the material on the conveying belt
Figure FDA0002606562150000017
After materials are placed on the conveying belt, the accumulated material weight value of the belt scale is read
Figure FDA0002606562150000018
According to the initial cummulative weight value
Figure FDA0002606562150000019
And the cumulative weight of the variables
Figure FDA00026065621500000110
Calculating the feed weight Mx。
3. The method of claim 2, wherein the feed weight M is measuredxIs calculated by the formula
Figure FDA00026065621500000111
4. The method of claim 1, wherein the real-time material weight M is measuredxIs calculated by the formula
Figure FDA00026065621500000112
CN202010740509.5A 2020-07-28 2020-07-28 Method for measuring material weight of material bin Pending CN111854901A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1118431A (en) * 1995-07-19 1996-03-13 冶金工业部北京钢铁设计研究总院 Method for metering storage in stock-bin and its apparatus
CN1776377A (en) * 2005-12-05 2006-05-24 上海宝信软件股份有限公司 Computing method for material weighing
RU2287136C1 (en) * 2005-02-24 2006-11-10 Закрытое Акционерное Общество "Весоизмерительная Компания "Тензо-М" Method for weight batching of free-flowing materials
CN102109369A (en) * 2009-12-29 2011-06-29 中冶长天国际工程有限责任公司 Method and device for detecting material stock of sintering proportioning bin
CN102829851A (en) * 2012-06-27 2012-12-19 郝志付 Single-body multi-cell scale and weighing method
CN109253788A (en) * 2018-10-19 2019-01-22 河钢股份有限公司承德分公司 Feed bin doses real-time measurement system and method
CN209055201U (en) * 2018-10-30 2019-07-02 长沙兴嘉生物工程股份有限公司 A kind of powder material automatic weighing proportioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1118431A (en) * 1995-07-19 1996-03-13 冶金工业部北京钢铁设计研究总院 Method for metering storage in stock-bin and its apparatus
RU2287136C1 (en) * 2005-02-24 2006-11-10 Закрытое Акционерное Общество "Весоизмерительная Компания "Тензо-М" Method for weight batching of free-flowing materials
CN1776377A (en) * 2005-12-05 2006-05-24 上海宝信软件股份有限公司 Computing method for material weighing
CN102109369A (en) * 2009-12-29 2011-06-29 中冶长天国际工程有限责任公司 Method and device for detecting material stock of sintering proportioning bin
CN102829851A (en) * 2012-06-27 2012-12-19 郝志付 Single-body multi-cell scale and weighing method
CN109253788A (en) * 2018-10-19 2019-01-22 河钢股份有限公司承德分公司 Feed bin doses real-time measurement system and method
CN209055201U (en) * 2018-10-30 2019-07-02 长沙兴嘉生物工程股份有限公司 A kind of powder material automatic weighing proportioner

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Application publication date: 20201030