CN114858641A - Method and system for detecting material components of material bin - Google Patents

Method and system for detecting material components of material bin Download PDF

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CN114858641A
CN114858641A CN202210477682.XA CN202210477682A CN114858641A CN 114858641 A CN114858641 A CN 114858641A CN 202210477682 A CN202210477682 A CN 202210477682A CN 114858641 A CN114858641 A CN 114858641A
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bin
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刘阳
邱立运
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Mcc Changtian Changsha Intelligent Technology Co ltd
Zhongye Changtian International Engineering Co Ltd
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Zhongye Changtian International Engineering Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract

The invention discloses a method and a system for detecting the components of a material in a bin, which are characterized in that a method for virtually layering the material in the bin is created by acquiring the component content set of the material in the bin at the current moment t detected by a component measuring instrument at a feeding belt scale for feeding and conveying K bins according to a preset frequency or in real time, creating the virtual layering of the bins according to a preset time interval and constructing the virtual layering of the bins according to a formula
Figure DDA0003621847180000011
Computing the bin virtual tier N of the kth bin x Content of the s component
Figure DDA0003621847180000012
Then, according to the corresponding relation between the feeding time and the discharging time, the composition data of the current discharging is obtained, so that the bin composition can be mastered in real time, and the requirements of process production can be metThe material bins are finely layered, so that the aim of controlling the properties of the discharged materials can be fulfilled, and data support is provided for the next mixing step; and only one ingredient detector and belt scale are used at the feed belt.

Description

Method and system for detecting material components of material bin
Technical Field
The invention relates to the technical field of intelligent control, in particular to a method and a system for detecting material components of a material bin.
Background
In the field of smelting, the mixing ratio of various minerals, the water content, the fuel and limestone ratio in the sintering process, and the like have very high influence on the final product, and the component ratio of the raw materials is generally required to be strictly controlled.
At present, the latest ingredient detection values are simply used for ingredient calculation, and because the raw material bin has certain storage capacity, the ingredients of the raw materials in the used batch do not necessarily correspond to the latest ingredient detection values. Therefore, when the above situation occurs, the deviation occurs between the actual raw material components and the ingredients used in the ingredient calculation, and the actual raw material ratio is directly affected. The method of batch calculation is essentially the same, but the problem of how to accurately locate the blend stored in the blend bin due to fluctuations in the final composition caused by batch differences and moisture content differences has been an unsolved problem.
At present, the material components are sampled and tested by adopting a manual mode at a discharge port of a storage bin, the sampling is carried out once or twice per shift, and then the sampling is used for calculating the proportioning of ingredients, and the method can only be used for the condition that the raw materials are relatively stable; the other method is that an online component analyzer is arranged on a large belt at the outlet of a mixer after mixing to comprehensively detect raw materials, but the online component analyzer can only be used for analyzing whether the raw material components, particularly indexes such as alkalinity and the like meet the requirements of mixing, and cannot judge which storage bin raw material component fluctuation needs to be adjusted, so that feedback control is difficult to realize.
Disclosure of Invention
In view of the above technical problems, it is a primary object of the present invention to provide a method and a system for controlling a storage bin of a storage bin, and a computer-readable storage medium, so as to solve the above technical problems.
In order to achieve the aim, the invention provides a control method of a bin position of a bin, which comprises the following steps:
s1, obtaining the ingredient content set alpha of the material entering the bin at the current moment t detected by the ingredient measuring instrument at the feeding belt scale for feeding and conveying K bins according to the preset frequency or in real time k (t) to obtain a binned component queue; wherein K is the number K of the stock bin, belonging to [1, K ]]And the component content set alpha of each material to be warehoused k (t) contents comprising S different components
Figure BDA0003621847160000021
s∈[1,S]；
S2, constructing a virtual bin layering according to a preset time interval, and dividing the stacked materials in the bin into N virtual bin layering N x ，x∈[1,n]According to the formula
Figure BDA0003621847160000022
Computing the bin virtual tier N of the kth bin x Content of the s component
Figure BDA0003621847160000023
Said t is 1 And t 2 The time difference is the preset time interval;
s3, obtaining the material currently discharged and the virtual layering N of the material bin according to the corresponding relation between the feeding time and the discharging time x So as to obtain the composition data of the current discharge.
Further, the method also comprises the following steps:
s12, obtaining the warehousing material amount w at the current moment t detected by the material feeding belt scale for feeding and conveying K bins in real time according to the preset frequency k (t)；
S22 according to the formula
Figure BDA0003621847160000024
Computing the bin virtual tier N of the kth bin x Amount of material W (N) x )。
Furthermore, only one of the N bins is fed at the same time, and the ingredient content set of the material fed into the kth bin is recorded as S k (t)α k (t)，S k (t) is 0, which means that the feeding state of the kth bin is closed at the current time t, and S k (t) is 1 hour meterAnd displaying the feeding state of the kth storage bin at the current moment and starting.
Further, according to discrete data obtained by measuring the feeding belt scale and according to a formula
Figure BDA0003621847160000025
Calculating the bin virtual hierarchy N of the kth bin x Content of the s component
Figure BDA0003621847160000026
Content (wt.)
Figure BDA0003621847160000027
Further according to the formula
Figure BDA0003621847160000031
Computing the bin virtual tier N of the kth bin x Amount of material W (N) x )。
Furthermore, different components in the S comprise water and effective material components.
Further, the preset time interval is not less than the sampling period f.
Furthermore, the feed bin is provided with M blending ore bins during material mixing, and the effective blanking time of the kth blending ore bin is t k1 To t k2 Then the ore bin is charged
Figure BDA0003621847160000032
K th stock bin t of layered mixing ore q1 To t q2 The inner blanking quality is as follows:
Figure BDA0003621847160000033
the kth stock bin t k1 To t k2 The content of the ingredients in the inner blanking is as follows:
Figure BDA0003621847160000034
the total mass of the batch of evenly mixed ore in the strong mixing link is as follows:
Figure BDA0003621847160000035
wherein j is the number of the blending ore bin,
the content of the substance s in the batch of the mixed ore is as follows:
Figure BDA0003621847160000036
wherein, W' is the mass of other substances added in the strong mixing link.
The invention also provides a detection system for the material components of the material bins, which comprises a step of acquiring the instantaneous material quantity w of the fed materials at the current time t of the N material bins according to the preset frequency or in real time k (t) the material feeding belt scale, and the ingredient content set alpha of the material fed into the bin at the current moment t at the material feeding belt scale position for feeding and conveying K bins according to the preset frequency or in real time k (t) a component meter, a memory, a processor, a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, carries out the steps of the method for detecting the composition of a silo material as defined in any one of the preceding claims.
According to the method and the system for controlling the bin positions of the bins, the ingredient content set alpha of the materials entering the bins at the current time t detected by the ingredient measuring instrument at the feeding belt scale for feeding and conveying K bins is obtained in real time or at the preset frequency through S1 k (t) to obtain a queue of binned elements; wherein K is the number K of the stock bin, belonging to [1, K ]]And the component content set alpha of each material to be warehoused k (t) contents of different components including S
Figure BDA0003621847160000041
s∈[1,S](ii) a S2, constructing a virtual bin hierarchy according to a preset time interval, and dividing the bin into two layersVirtual layering N for dividing stacked materials into N bins x ，x∈[1,n]According to the formula
Figure BDA0003621847160000042
Computing the bin virtual tier N of the kth bin x The content of the s component
Figure BDA0003621847160000043
Said t is 1 And t 2 The time difference is the preset time interval; and S3, acquiring the time relation between the currently discharged material and the virtual layering Nx of the storage bin according to the corresponding relation between the feeding time and the discharging time, thereby acquiring the currently discharged component data. By the innovative method for virtually layering the storage bins, the components of the storage bins are mastered in real time, the storage bins can be finely layered according to the requirements of process production, so that the aim of controlling the properties of discharged materials can be fulfilled, and data support is provided for the next blending step; and only one ingredient detector and belt scale are used at the feed belt.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without any creative work.
FIG. 1 is a schematic diagram of a bin level control system in one embodiment of the present invention;
FIG. 2 is a flow chart of a bin level control method in one embodiment of the present invention;
FIG. 3 is a schematic diagram of a material queue of a silo according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a virtual hierarchy of bins in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of protection of the present invention.
First, a bunker bay system to which the solution of the embodiment of the present application will be applied will be described by way of example with reference to the accompanying drawings.
Fig. 1 shows a bin position control system of a bin according to an embodiment of the present invention, in which 1 is a component analyzer, 2 is an input belt, 3 is an input belt scale, 4 is a discharging device, 5 is an output belt, and 6 is an output belt scale. In the actual production process, the dump car can move to the feed bin position that needs to feed in raw material about the slide rail, and the dump car both ends all can the unloading, but can only be to a feed bin unloading at the same time.
The embodiment shown in fig. 1 has 8 bins, and the feeding belt scale 3 records the instantaneous material amount of the material when the material is fed through the feeding belt 2. The discharging device 4 can be a plow discharging hopper or a discharging trolley according to different feeding modes, so that the material is determined to enter which stock bin 1, and only one stock bin 1 is used for feeding at the same time. When a certain stock bin 1 needs to discharge, the material is discharged to the discharging belt scale 6 from the stock bin 1, and the discharging belt scale 6 can record the instantaneous discharge amount of the stock bin.
As shown in fig. 2, a method for detecting the content of a material in a silo according to a first embodiment of the present invention includes the steps of:
s1, obtaining the ingredient content set alpha of the material entering the bin at the current moment t detected by the ingredient measuring instrument at the feeding belt scale for feeding and conveying K bins according to the preset frequency or in real time k (t) to obtain a binned component queue; wherein K is the number K of the stock bin, belonging to [1, K ]]And the component content set alpha of each material to be warehoused k (t) contents of S different components
Figure BDA0003621847160000051
s∈[1,S]。
For example, in the steel smelting industry, the component content set α k (t) may include
Figure BDA0003621847160000061
The total iron content, the moisture content, the silica content, the calcium oxide content, the magnesium oxide content, the aluminum oxide content, and the sulfur content are respectively expressed. Specifically, the component content set α k The composition of the components in (t) can be determined according to the field process requirements.
S2, constructing a virtual bin layering according to a preset time interval, and dividing the stacked materials in the bin into N virtual bin layering N x ，x∈[1,n]According to the formula
Figure BDA0003621847160000062
Computing the bin virtual tier N of the kth bin x Content of the s component
Figure BDA0003621847160000063
Said t is 1 And t 2 The time difference therebetween is the predetermined time interval.
S3, obtaining the material currently discharged and the virtual layering N of the material bin according to the corresponding relation between the feeding time and the discharging time x So as to obtain the composition data of the current discharge.
Specifically, please refer to fig. 3 and 4 together, and the node t is located on the time axis 1 And t 2 And a time window is set, the size of the time window is determined by actual production requirements, and the minimum value of the time window is not less than the sampling period of the component analyzer. The time window slides along the time axis in the end-to-end connection on the warehousing material quantity queue, and the obtained time t is 1 To t 2 The accumulated value of the input material amount and the mean value of the input material principal component vector are used as a block N x From which a virtual hierarchy N of the silo can be constructed x Wherein the bins are each virtually tiered N x Corresponding in time to a time windowAnd (4) acquiring the warehousing material data, and meeting the FIFO (first in first out) principle. For each bin, only the feeding condition in the effective time is considered, and the data queue is formed by serially connecting the feeding queues in the effective time according to the time sequence.
Thus, further, each virtual hierarchy N x Is expressed as the amount of material at t 1 And t 2 In the time, the feeding amount of the kth storage bin, namely,
Figure BDA0003621847160000064
specifically, each virtual hierarchy N is measured x The step of measuring the material amount comprises:
s12, obtaining the warehousing material amount w at the current moment t detected by the material feeding belt scale for feeding and conveying K bins in real time according to the preset frequency k (t)；
S22 according to the formula
Figure BDA0003621847160000071
Computing the bin virtual tier N of the kth bin x Amount of material W (N) x )。
It can be understood that N bins only have one bin to feed at the same time, and the ingredient content set of the material input into the k-th bin is recorded as S k (t)α k (t)，S k (t) is 0, which means that the feeding state of the kth bin is closed at the current time t, and S k And (t) when the value is 1, the charging state of the kth storage bin at the current moment is started. It can be understood that, because there is only one bin to feed at the same time, the instant material amount of feed at each time t can be calculated according to the operation time of the discharging device 4, the time when the feed belt scale 3 can record the instant material amount of the material, and the time when the material moves from the feed belt scale 3 to the corresponding bin. In addition, it should be noted that when the current bin is feeding, the instantaneous material amount of the other bins is 0.
When the data obtained by the feeding belt scale is discrete data, a dense sampling mode needs to be adopted to replace the discrete data in practical applicationIn the integration process, the k-th bin charge amount integration can be converted into dense sampling summation. At this time node t 1 And t 2 Should be effective blanking time (i.e. S) k (t) is 1 hour), and an independent material quality queue is constructed for each bin, a section of material quality queue is generated for one effective blanking time of each bin, and finally, the queue of each bin is formed by connecting material quality queue segments of the bins at each effective blanking time in series according to the time sequence. f. of 1 The sampling frequency of the feeding belt scale is adopted.
Wherein the bin virtual hierarchy N of the kth bin x Content of the s component
Figure BDA0003621847160000072
Specifically, f is discrete data obtained by measuring the feeding belt scale 1 Is the sampling frequency of the feeding belt scale, the node t on the time axis 1 And t 2 In the set time window, the data obtained by the composition detector is discrete data, at the moment t 1 And t 2 Should be effective blanking time (i.e. S) k (t) is 1 hour), an independent material quality queue is constructed corresponding to each bin, one section of material quality queue is generated within one section of effective blanking time of each bin, and finally, the queue of each bin is formed by serially connecting material quality queue segments of the bins within each effective blanking time according to the time sequence.
Furthermore, different components in the S comprise water and effective material components.
Further, the preset time interval is not less than the sampling period f.
Preferably, in a specific embodiment, in order to adjust the main material proportion of the blended ore in the subsequent intensive mixing step, the main component proportion of the ore discharged from the blending ore bin needs to be known, each batch of blended ore is discharged from the blending ore bin, a plurality of ore bins possibly enter the intensive mixing step at the same time, the batch of blended material is arranged to share M blending ore bins, and the effective blanking time of the qth blending ore bin is set as t q1 To t q2 Then the ore bin is charged
Figure BDA0003621847160000081
Layered mixing of ore, t 1 And t 2 The effective time of each layer when the ore bin is fed is combined with the formula:
Figure BDA0003621847160000082
Figure BDA0003621847160000083
then the kth silo t q1 To t q2 The inner blanking quality is as follows:
Figure BDA0003621847160000084
the kth stock bin t k1 To t k2 The content of the ingredients s in the inner blanking is as follows:
Figure BDA0003621847160000085
comprehensively considering M blending ore bins used by the batch of materials, the total mass of the batch of blending ore in the strong mixing link is as follows:
Figure BDA0003621847160000091
wherein j is the number of the uniform mixing mineral deposit,
the content of the substance s in the batch of the mixed ore is as follows:
Figure BDA0003621847160000092
wherein, W' is the mass of other substances added in the strong mixing link.
At the moment, the quality and the main component content of each batch of the mixed ore discharged from the mixed ore bin and entering the strong mixing link can be mastered in real time.
According to the method, the bin components are mastered in real time through an innovative virtual layering method for the bins, the bins can be finely layered according to the requirements of process production, so that the purpose of controlling the properties of discharged materials can be achieved, and data support is provided for the next mixing step; and only one ingredient detector and belt scale are used at the feed belt.
The invention also provides a detection system for the material components of the material bins, which comprises a step of acquiring the instantaneous material quantity w of the fed materials at the current time t of the N material bins according to the preset frequency or in real time k (t) the feeding belt weigher acquires the component content set alpha of the materials entering the bin at the current moment t at the feeding belt weigher for feeding and conveying K bins according to the preset frequency or in real time k (t) a component meter, a memory, a processor, a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, carries out the steps of the method for detecting the composition of a silo material as defined in any one of the preceding claims.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the present specification and drawings, or used directly or indirectly in other related fields, are included in the scope of the present invention.

Claims (9)

1. A method for detecting the components of a material bin comprises the following steps:
s1, obtaining the ingredient content set alpha of the material entering the bin at the current moment t detected by the ingredient measuring instrument at the feeding belt scale for feeding and conveying K bins according to the preset frequency or in real time k (t) to obtain a queue of binned elements; wherein K is the number K of the stock bin, belonging to [1, K ]]And the component content set alpha of each material to be warehoused k (t) contents comprising S different components
Figure FDA0003621847150000011
S2, constructing a virtual bin layering according to a preset time interval, and dividing the stacked materials in the bin into N virtual bin layering N x ，x∈[1,n]According to the formula
Figure FDA0003621847150000012
Computing the bin virtual tier N of the kth bin x Content of the s component
Figure FDA0003621847150000013
T is said 1 And t 2 The time difference is the preset time interval;
s3, obtaining the material which is currently discharged and the virtual layering N of the storage bin according to the corresponding relation between the feeding time and the discharging time x So as to obtain the composition data of the current discharge.
2. The method for detecting the composition of the material in the storage bin according to claim 1, further comprising the steps of:
s12, obtaining the warehousing material amount w at the current moment t detected by the material feeding belt scale for feeding and conveying K bins in real time according to the preset frequency k (t)；
S22 according to the formula
Figure FDA0003621847150000014
Computing the bin virtual tier N of the kth bin x Amount of material W (N) x )。
3. Method for detecting the composition of materials in a silo according to claim 1 or 2, characterized in that only one silo of N silo is filled at the same time, and the composition content set of the materials in the k-th silo is recorded as S k (t)α k (t)，S k (t) is 0, which means that the feeding state of the kth bin is closed at the current time t, and S k When (t) is 1Indicating that the feeding state of the kth storage bin is opened at the current moment.
4. The method for detecting the material content of the storage bin as claimed in claim 2, wherein the discrete data obtained by measuring the material feeding belt scale are calculated according to a formula
Figure FDA0003621847150000021
Computing the bin virtual tier N of the kth bin x Content of the s component
Figure FDA0003621847150000022
Content (c) of
Figure FDA0003621847150000023
5. The method for detecting the composition of material in a silo according to claim 2, characterized in that the method is based on a formula
Figure FDA0003621847150000024
Computing the bin virtual tier N of the kth bin x Amount of material W (N) x )。
6. The method for detecting the components of the material in the storage bin according to claim 1 or 2, wherein the different components in the S comprise water and effective material components.
7. The method for detecting the composition of the bunker material of claim 3 or 4, wherein the predetermined time interval is not less than the sampling period f.
8. The method for detecting the components of the material in the storage bin as claimed in claim 4, wherein the storage bin is provided with M blending ore bins during material mixing, and the effective blanking time of the kth blending ore bin is t k1 To t k2 Then the ore bin is charged
Figure FDA0003621847150000025
K th storage bin t of layer blending ore q1 To t q2 The inner blanking quality is as follows:
Figure FDA0003621847150000026
wherein f is 1 Is the sampling frequency of the feeding belt scale
The kth stock bin t k1 To t k2 The content of the ingredients in the inner blanking is as follows:
Figure FDA0003621847150000027
the total mass of the batch of evenly mixed ore in the strong mixing link is as follows:
Figure FDA0003621847150000031
wherein j is the number of the blending ore bin,
the content of the substance s in the batch of the mixed ore is as follows:
Figure FDA0003621847150000032
wherein, W' is the mass of other substances added in the intensive mixing link.
9. The detection system for the material components of the material bins is characterized by comprising a feeding instantaneous material amount w for acquiring the current time t of N material bins in real time according to a preset frequency k (t) the material feeding belt scale, and the ingredient content set omega of the material fed into the bin at the current moment t at the material feeding belt scale position for feeding and conveying K bins according to the preset frequency or in real time k (t) a component meter, a memory, a processor, a computer program stored in said memory and executable on said processor, characterized in thatThe processor realizes the steps of the method for detecting the contents of a silo material according to any one of claims 1 to 8 when executing the computer program.
CN202210477682.XA 2022-04-28 2022-04-28 Method and system for detecting material components of material bin Pending CN114858641A (en)

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