CN112742162A - Material balance control method, device and system for analytic system - Google Patents
Material balance control method, device and system for analytic system Download PDFInfo
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- CN112742162A CN112742162A CN201911051951.0A CN201911051951A CN112742162A CN 112742162 A CN112742162 A CN 112742162A CN 201911051951 A CN201911051951 A CN 201911051951A CN 112742162 A CN112742162 A CN 112742162A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
Abstract
The embodiment of the application discloses a material balance control method, a device and a system for an analytic system, which comprise the following steps: acquiring the actual feeding time of each analysis tower and a first working frequency of a round roller unloading machine of each analysis tower in a preset time period, wherein the analysis system comprises a first analysis tower and a second analysis tower; if the relative deviation value of the actual feeding time of the analysis tower does not meet the preset first deviation threshold range, generating a second working frequency of the circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower; and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency. The actual blanking time of each analysis tower is utilized to adjust the working frequency of the round roller unloader of each analysis tower, so that the accurate control of the blanking amount of each analysis tower is realized, the blanking amount of each analysis tower tends to be consistent, and the stable operation of the system is ensured.
Description
Technical Field
The invention relates to the technical field of flue gas purification, in particular to a material balance control method, device and system for an analytic system.
Background
At present, in iron and steel enterprises, sulfur oxides (such as SO 2) and nitrogen oxides (such as NO and NO 2) in sintering flue gas generated in a sintering process account for the vast majority of the total amount of pollution emission of the iron and steel enterprises, and in order to reduce air pollution caused by the emission of the sintering flue gas, the sintering flue gas needs to be subjected to treatments such as desulfurization and denitrification. Iron and steel enterprises usually adopt a special flue gas purification system, and materials (such as activated carbon) with adsorption function are placed in the flue gas purification system to adsorb sintering flue gas, so that desulfurization, denitration and other treatments of the sintering flue gas are realized.
Referring to fig. 1, fig. 1 is a schematic diagram of a flue gas purification system in the prior art. As can be seen in fig. 1, the flue gas cleaning system comprises: an absorption system 1, a desorption system 2, a desorption column feed conveyor 3, and an absorption column feed conveyor 4. The sintering flue gas is pressurized and then respectively conveyed to the absorption subsystem 1, and pollutants in the sintering flue gas are adsorbed by materials (such as activated carbon) in the absorption subsystem 1. The material of load pollutant discharges to analysis tower feeding conveyor 3, then is carried to analysis system 2 by analysis tower feeding conveyor 3 in, analysis system 2 heats the material of load pollutant and analyzes, and the material through heating analysis discharges to absorption tower feeding conveyor 4 through analysis system 2's round roller unloader 5 on, then is carried again to absorption subsystem 1 in the recycle by absorption tower feeding conveyor 4 to continuously purify the sintering flue gas.
As shown in fig. 1, the analyzing system 2 includes two analyzing towers, namely a first analyzing tower 21 and a second analyzing tower 22, the first analyzing tower and the second analyzing tower share a material bin 23, in order to accurately control and balance the blanking amount of the first analyzing tower 21 and the second analyzing tower 22, in the prior art, a circular roller unloader is used to control the blanking amount, as shown in fig. 2, the circular roller unloader is generally a cylinder with a length of about 4.5m and a diameter of about 200mm, when the circular roller unloader works, the material stored in the analyzing tower is discharged by rotation, and the speed of discharging the material is controlled by the rotation speed (frequency conversion operation) of the circular roller unloader. In the blanking process, the first and second analyzers 21 and 22 are filled with the material, and the material level of the material bin (for example, an activated carbon bin) shared by the first and second analyzers 21 and 22 is reduced along with the continuous discharging of the round-roll discharger at the lower parts of the first and second analyzers 21 and 22. The material silo is provided with a level detection, and when a low level is detected, the material is replenished (e.g. with fresh activated carbon) until a high level is detected.
However, because the length of the round roller unloader is large, the analytic towers are discharged by the round roller unloader, so that the absolute uniform discharging is difficult to realize, the discharging amount of materials of each analytic tower deviates from a design value, the discharging amount of some analytic towers is large, and the discharging amount of some analytic towers is small. If the actual blanking amount of the desorption tower is higher than the design value, incomplete desorption can be caused, the activated carbon is not fully desorbed and activated, and the non-desorbed activated carbon can be cooled in a cooling section to cause corrosion and blockage of the cooling section; the incomplete cooling of the activated carbon can be caused, the temperature of the activated carbon in the adsorption tower can be increased, and serious safety production accidents can be caused; if the actual blanking amount of the desorption tower is lower than the design value, energy waste is caused. Therefore, it is an urgent technical problem to make the blanking amount of each analysis tower uniform.
Disclosure of Invention
The invention provides a material balance control method, device and system for an analytic system, and aims to solve the problems that in the prior art, due to the fact that a round roller unloader is large in length, the analytic tower discharges materials by the round roller unloader, absolutely uniform discharging is difficult to achieve, the discharging amount of the materials of each analytic tower deviates from a design value, and accordingly incomplete analysis or energy waste is caused.
In a first aspect, the present invention provides a material balance control method for an analytic system, including:
acquiring the actual feeding time of each analysis tower and a first working frequency of a round roller unloading machine of each analysis tower in a preset time period, wherein the analysis system comprises a first analysis tower and a second analysis tower;
if the relative deviation value of the actual feeding time of the analysis tower does not meet the preset first deviation threshold range, generating a second working frequency of the circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower;
and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency.
Further, the acquiring the actual feeding time of each analysis tower in the preset time period includes:
and respectively obtaining the working time of the material distributor of the analysis tower communicated with each analysis tower, wherein the working time is the actual feeding time.
Further, the material balance control method further comprises the following steps:
and if the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range, maintaining a first working frequency of a circular roller unloading machine of the analysis tower.
Further, the material balance control method further comprises the following steps:
and if the first working frequency of the round roller unloading machine of each analysis tower is the same, and the relative deviation value of the actual feeding time of each analysis tower does not meet the range of a preset second deviation threshold value, determining that the round roller unloading machine of each analysis tower is in an abnormal state.
Further, the material balance control method further comprises the following steps:
and if the first working frequency of the circular roller unloader of each resolving tower is the same, determining material flow parameters according to the actual feeding time of the resolving tower, wherein the material flow parameters are used for judging the material flow state of the whole resolving system.
Further, determining the stream parameters according to the actual feeding time of the desorption tower specifically comprises:
calculating the material flow parameters according to the actual feeding time of the analysis tower and the following relational expression:
wherein x represents the average of the actual feed times, T1 represents the actual feed time of the first stripper, T2 represents the actual feed time of the second stripper, and y represents the stream parameters.
Further, the generating of the second working frequency of the circular roller unloader of the stripper column according to the actual feeding time and the first working frequency of the stripper column includes: and calculating the second working frequency according to the actual feeding time and the first working frequency of the analysis tower and the following relational expression:
wherein M1 represents the second operating frequency of the ith stripper, M represents the first operating frequency, T represents the sum of the actual feed times of the two strippers, Ti represents the actual feed time of the ith stripper, and i is 1 or 2.
In a second aspect, the present invention provides an apparatus for material balance control of an analytic system, comprising: the device comprises a desorption tower, a desorption tower material distributor and a control device;
the upper part of each analysis tower is provided with a material bin;
the analysis tower material distributor is arranged between the material bin and the analysis tower feeding conveyor and is used for distributing the materials conveyed by the analysis tower feeding conveyor to the corresponding material bin;
the control device is used for:
acquiring the actual feeding time of each analysis tower and a first working frequency of a round roller unloading machine of each analysis tower in a preset time period, wherein the analysis system comprises a first analysis tower and a second analysis tower;
if the relative deviation value of the actual feeding time of the analysis tower is larger than a first deviation preset threshold value, generating a second working frequency of a circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower;
and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency.
In a third aspect, the present invention provides a system for material balance control of an analytic system, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the actual feeding time of each analysis tower in a preset time period and the first working frequency of a round roller unloader of each analysis tower, and the analysis system comprises a first analysis tower and a second analysis tower;
the generation module is used for generating a second working frequency of the round roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower when the relative deviation value of the actual feeding time of the analysis tower does not meet a preset first deviation threshold range;
and the adjusting module is used for adjusting the first working frequency of the round roller unloading machine of the analysis tower to be a second working frequency.
And the acquisition submodule is used for respectively acquiring the working time of the material distributor of the analysis tower communicated with each analysis tower, wherein the working time is the actual feeding time.
Further, the system further comprises: and the maintaining module is used for maintaining the first working frequency of the circular roller unloading machine of the analysis tower when the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range.
Further, the system further comprises: the first determining module is used for determining that the circular roller unloading machines of the analysis towers are in an abnormal state when the first working frequency of the circular roller unloading machines of each analysis tower is the same and the relative deviation value of the actual feeding time of each analysis tower does not meet a preset second deviation threshold range.
Further, the system further comprises: and the second determining module is used for determining material flow parameters according to the actual feeding time of the resolving towers when the first working frequency of the round roller unloading machine of each resolving tower is the same, wherein the material flow parameters are used for judging the material flow state of the whole resolving system.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects: the invention provides a material balance control method, device and system for an analytic system. According to the material balance control method, the actual blanking time of each analysis tower is utilized, the working frequency of the circular roller unloader of each analysis tower is adjusted, the accurate control of the blanking amount of each analysis tower is realized, the blanking amount of each analysis tower tends to be consistent, and the stable operation of the system is ensured. In addition, whether the operation of the circular roller unloading machine of each analysis tower is normal or not can be judged according to the relative deviation value of the actual feeding time of each analysis tower, and material flow parameters are determined and used for judging the material flow state of the whole analysis system.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a flue gas purification system according to the prior art;
FIG. 2 is a schematic structural diagram of a circular roller unloader provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for controlling material balance of an analytic system according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a material balance control method for an analytic system according to an embodiment of the present invention;
fig. 5 is a block diagram of a material balance control system for an analytic system according to an embodiment of the present 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the prior art, the material discharge amount of the materials in the analysis tower is controlled by the round roller unloading machine, but the material discharge amount of the materials in the analysis tower is deviated from a designed value due to the fact that the length of the round roller unloading machine is large, the material is discharged by the round roller unloading machine in the analysis tower, absolute uniform discharging is difficult to achieve, the material discharge amount of the analysis tower is caused to be deviated, the material discharge amount of some analysis towers is large, and the material discharge amount of some analysis towers is small. If the actual blanking amount of the desorption tower is higher than the design value, incomplete desorption can be caused, the activated carbon is not fully desorbed and activated, and the non-desorbed activated carbon can be cooled in a cooling section to cause corrosion and blockage of the cooling section; the incomplete cooling of the activated carbon can be caused, the temperature of the activated carbon in the adsorption tower can be increased, and serious safety production accidents can be caused; if the actual blanking amount of the desorption tower is lower than the design value, energy waste is caused. In order to solve the problem, the invention provides a material balance control method, a material balance control device and a material balance control system for an analytic system.
The following describes a material balance control method, device and system for an analytic system in detail with reference to the accompanying drawings.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a material balance control device for an analytic system according to an embodiment of the present invention. As can be seen from fig. 3, the material balance control device includes: the device comprises a desorption tower 6, a desorption tower material distributor 7 and a control device;
the analysis tower 6 comprises a material bin 61, a heating analysis device 62 and a round roller unloading machine 63, wherein the material bin 61 is positioned above the heating analysis device 62, and the round roller unloading machine 63 is positioned below the heating analysis device 62.
The material bin 61 is used for receiving materials conveyed by the analysis tower feeding conveyor 3, the heating analysis device 62 is used for heating and analyzing the materials loaded with pollutants, and the round roller unloading machine 63 is used for discharging the materials subjected to heating and analysis out of the analysis tower 6.
In this embodiment, the apparatus includes two desorption towers 6, a first desorption tower and a second desorption tower, and a material bin 61 is disposed on the upper portions of the first desorption tower and the second desorption tower.
A feeding hole 611 is arranged above the material bins 61, the feeding holes 611 above the two material bins 61 are respectively communicated with a branch pipeline, a discharging hole of the analysis tower feeding conveyor 3 is communicated with a main pipeline, and the two branch pipelines are communicated with the main pipeline after being converged at the same position. The analysis tower material distributor 7 is installed at the connection intersection of the two branch pipelines and the main pipeline, the analysis tower material distributor 7 can control the materials in the main pipeline to enter the corresponding branch pipelines, and then the materials conveyed by the analysis tower feeding conveyor 3 are distributed to the corresponding material bins 61.
The working process of the material balance control device is as follows: the material is discharged from a discharge port of the analysis tower feeding conveyor 3 by the analysis tower feeding conveyor 3, the material is distributed to the corresponding material bins 61 through the analysis tower material distributor 7, and the material subjected to heating analysis is discharged out of the analysis tower 6 by the round roller discharger 63 in each analysis tower, wherein the working frequency of each round roller discharger 63 is adjusted through a control device.
The control device acquires the actual feeding time of each analysis tower in a preset time period and the first working frequency of the round roller unloader of each analysis tower; if the relative deviation value of the actual feeding time of the analysis tower is larger than a first deviation preset threshold value, generating a second working frequency of a circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower; and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency. The control device repeatedly circulates the steps, adjusts the working frequency of the circular roller unloading machines of the two analysis towers, enables the actual feeding time of the two analysis towers to be equal or equal, and achieves the uniform blanking of the two analysis towers.
The device for controlling the material balance of the analytic system provided by the embodiment of the invention comprises: the analysis tower 6, analysis tower material distributor 7 and controlling means, every analysis tower 6 all includes material storehouse 61, heating analysis device 62 and round roller unloader 63, analysis tower feeding conveyor 3 unloads the material from analysis tower feeding conveyor 3's discharge gate, distribute the material to corresponding material storehouse 61 through analysis tower material distributor 7, again by round roller unloader 63 in every analysis tower with the material discharge analysis tower 6 of heating analysis, wherein, the operating frequency of every round roller unloader 63 is adjusted through controlling means. The control device acquires the actual feeding time of each analysis tower in a preset time period and the first working frequency of the round roller unloader of each analysis tower; if the relative deviation value of the actual feeding time of the analysis tower is larger than a first deviation preset threshold value, generating a second working frequency of a circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower; and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency. Compared with the prior art, the first analysis tower and the second analysis tower share one material bin 23, and the actual feeding time of the first analysis tower and the actual feeding time of the second analysis tower cannot be counted. In the invention, each analysis tower is provided with one material bin, and the materials are distributed to the corresponding material bins through the analysis tower material distributor, so that the working frequency of the circular roller unloader of each analysis tower can be adjusted by utilizing the actual feeding time of each analysis tower, the accurate control of the feeding amount of each analysis tower is realized, the feeding amount of each analysis tower tends to be consistent, and the stable operation of the system is ensured.
Based on the material balance control device for the analytic system, the invention also provides a material balance control method for the analytic system.
Referring to fig. 4, fig. 4 is a schematic flowchart illustrating a material balance control method for an analytic system according to an embodiment of the present invention. As can be seen from fig. 4, the material balance control method includes:
Based on the material balance control device for the analytic system, the analytic system comprises a first analytic tower and a second analytic tower, and the material is distributed into the first analytic tower and the second analytic tower through the analytic tower material distributor.
Further, in order to obtain the actual feeding time of each analysis tower within a preset time period, a timer is arranged in the system and used for recording the working time of the material distributor of the analysis tower communicated with each analysis tower within the preset time period, and the recorded working time is the actual feeding time.
In this embodiment, the current operating frequency of the round roll unloader of each resolving tower is recorded as the first operating frequency.
Theoretically, the blanking speeds of the two desorption towers should be the same, and the actual feeding time of the two corresponding desorption towers should be the same, however, in actual implementation, the blanking amounts of the two desorption towers may not be the same due to factors such as the structure of the round roller and installation errors, and therefore, the step 102 needs to be executed.
And 102, judging whether the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range.
103, if the relative deviation value of the actual feeding time of the analysis tower does not meet a preset first deviation threshold range, generating a second working frequency of the circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower.
After the actual feeding time of the analytical towers is obtained, firstly, a relative deviation value of the actual feeding time of each analytical tower is generated, and the method specifically comprises the following steps: taking the following relational expression (1) as a preset relative deviation relational expression; calculating the relative deviation of the actual feeding time of each analysis tower by using a preset relative deviation relation, namely the following relation (1):
in relation (1):
ai represents the relative deviation of the actual feeding time of the ith analytical tower;
ti represents the actual feeding time of the ith resolving tower;
x represents the average value of the actual feeding time of each resolving tower;
wherein i is 1 or 2.
The relational expression (1) is stored in the system in advance, and may be retrieved from the system at the time of calculation.
And if the generated relative deviation value of the actual feeding time does not meet the preset first deviation threshold range, generating a second working frequency of the circular roller unloading machine corresponding to the analysis tower according to the actual feeding time of the analysis tower and the first working frequency of the analysis tower.
Further, the generating a second working frequency of the round roller unloader of the desorption tower according to the actual feeding time and the first working frequency of the desorption tower comprises: calculating the second working frequency according to the following relation (2) according to the actual feeding time and the first working frequency of the analysis tower:
in relation (2):
m1 denotes a second operating frequency of the ith resolution tower;
m represents a first operating frequency;
t represents the sum of the actual feeding time of the two resolving towers;
ti represents the actual feed time of the ith stripping column, and i is 1 or 2.
The relational expression (2) is stored in the system in advance, and may be retrieved from the system at the time of calculation.
And 104, adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency.
And adjusting the first working frequency of the circular roller unloading machine corresponding to the analytic tower with the relative deviation value of the actual feeding time not meeting the preset first deviation threshold range to be a second working frequency.
Step 102 is to judge whether the relative deviation value of the actual feeding time of the analytical tower meets a preset first deviation threshold range, and then step 105 is included.
And 105, if the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range, maintaining a first working frequency of a circular roller unloading machine of the analysis tower.
And (4) repeatedly circulating the steps 101 to 105, and continuously adjusting the working frequency of each analysis tower so as to enable the actual feeding time of each analysis tower to be the same or tend to be the same, thereby realizing the material blanking amount of each analysis tower to be the same or tend to be the same.
It should be further noted that in the process of repeatedly circulating the above steps, the preset time of each time may be the same or different, and in order to record the working time, after the above circulating step is executed each time, the time for communicating the material distributor of the analytical tower with each analytical tower may be reset to zero and re-timed.
In the embodiment, the actual blanking time of each analysis tower is utilized to adjust the working frequency of the circular roller unloader of each analysis tower, so that the blanking amount of each analysis tower is accurately controlled, the blanking amount of each analysis tower is consistent, and the stable operation of the system is ensured.
Further, after the first operating frequency of the circular roller discharger of each parsing tower within the preset time period is obtained in step 101, steps 201 to 204 may also be executed to determine whether the circular roller discharger fails.
The round roller unloading machine is arranged in the analysis tower, and when the round roller unloading machine operates, whether the round roller unloading machine is normal or not is difficult to judge. At present, only when the analysis system is stopped for maintenance, the circular roller unloading machine can be manually fed into the analysis tower to check whether the circular roller unloading machine has faults or not after the circular roller unloading machine is cooled in the analysis tower, for example, a baffle plate falls off, material clamping and the like.
And 204, if the first working frequency of the circular roller unloading machine of each analysis tower is different, adjusting the first working frequency of one of the analysis towers to enable the adjusted first working frequencies of the two analysis towers to be the same. Then, step 201 to step 203 are executed.
In this embodiment, when the first operating frequency of the circular roller unloader of each of the parsing towers is the same, whether the operation of the circular roller unloader of each parsing tower is normal is determined by the relative deviation value of the actual feeding time of each parsing tower. And if the relative deviation value of the actual feeding time of the analysis tower does not meet the preset second deviation threshold range, indicating that the circular roller unloading machine of the analysis tower is abnormal in operation, and checking and adjusting the circular roller unloading machine corresponding to the analysis tower. And if the relative deviation value of the actual feeding time of the analysis tower meets a preset second deviation threshold range, indicating that the circular roller unloading machine of the analysis tower normally operates.
The second deviation threshold range may be the same as the first deviation threshold range, and in practice, the second deviation threshold range is generally larger than the first deviation threshold range.
It should be noted that the steps 201-204 are not executed at the same time as the steps 101-105.
Further, step 201 determines whether the first operating frequency of the circular roller discharger of each parsing tower is the same, and then if the first operating frequency of the circular roller discharger of each parsing tower is the same, step 301 may be further performed.
calculating the material flow parameter according to the actual feeding time of the resolving tower and the following relational expression (3):
in relation (3):
x represents the average of the actual feed times;
t1 represents the actual feed time to the first stripper column;
t2 represents the actual feed time to the second stripper column;
y represents a stream parameter.
In this embodiment, the relation (3) is used to determine the material flow parameter, and the material flow parameter can reflect the blanking uniformity of the whole analysis system, and can be used to determine the material flow state of the whole analysis system. The present embodiment may be used to evaluate the material flow states of different resolving systems, for example, the material flow parameters of the two resolving systems are respectively calculated by using the above-mentioned relational expression (3), and the material flow states of the two resolving systems are evaluated according to the result of the calculated material flow parameters. The smaller the material flow parameter value is, the more uniform the blanking of the corresponding analysis system is, and the material flow state is better.
It should also be noted that the control means in the apparatus for material balance control of an analytical system may perform all of the steps described above.
According to the material balance control method for the analytic system, provided by the embodiment of the invention, the working frequency of the circular roller unloader of each analytic tower is adjusted by utilizing the actual blanking time of each analytic tower, so that the blanking amount of each analytic tower is accurately controlled, the blanking amount of each analytic tower is consistent, and the stable operation of the system is ensured. In addition, whether the operation of the circular roller unloading machine of each analysis tower is normal or not can be judged according to the relative deviation value of the actual feeding time of each analysis tower, and material flow parameters are determined and used for judging the material flow state of the whole analysis system.
Corresponding to the material balance control method for the analytic system, the embodiment of the invention also discloses a material balance control system for the analytic system.
Referring to fig. 5, fig. 5 is a block diagram illustrating a material balance control system for an analytic system according to an embodiment of the present invention. As can be seen from fig. 5, the material balance control system includes:
the obtaining module 401 is configured to obtain an actual feeding time of each parsing tower and a first working frequency of a round roller unloader of each parsing tower within a preset time period, where the parsing system includes a first parsing tower and a second parsing tower;
a generating module 402, configured to generate a second operating frequency of a round roller unloader of the parsing tower according to the actual feeding time and the first operating frequency of the parsing tower when the relative deviation value of the actual feeding time of the parsing tower does not meet a preset first deviation threshold range;
and an adjusting module 403, configured to adjust the first operating frequency of the circular roller unloading machine of the parsing tower to a second operating frequency.
Further, the method comprises the following steps:
and the acquisition submodule is used for respectively acquiring the working time of the material distributor of the analysis tower communicated with each analysis tower, and the working time is the actual feeding time.
Further, the system further comprises:
and the maintaining module is used for maintaining the first working frequency of the circular roller unloading machine of the analysis tower when the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range.
Further, the system further comprises:
the first determining module is used for determining that the circular roller unloading machines of the analysis towers are in an abnormal state when the first working frequency of the circular roller unloading machines of each analysis tower is the same and the relative deviation value of the actual feeding time of each analysis tower does not meet a preset second deviation threshold range.
Further, the system further comprises:
and the second determining module is used for determining material flow parameters according to the actual feeding time of the resolving towers when the first working frequency of the round roller unloading machine of each resolving tower is the same, wherein the material flow parameters are used for judging the material flow state of the whole resolving system.
The material balance control system for the analytic system provided by the embodiment of the invention can implement the steps in the material balance control system method for the analytic system and obtain the same technical effect. The actual blanking time of each analysis tower is utilized to adjust the working frequency of the round roller unloader of each analysis tower, so that the accurate control of the blanking amount of each analysis tower is realized, the blanking amount of each analysis tower tends to be consistent, and the stable operation of the system is ensured.
In specific implementation, the present invention further provides a computer storage medium, where the computer storage medium may store a program, and when the program is executed, the program may include some or all of the steps in each embodiment of the material balance control method for an analytic system provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, as for the embodiment of the supplementary device for activated carbon in a flue gas purification device, since it is basically similar to the embodiment of the method, the description is simple, and the relevant points can be referred to the description in the embodiment of the method.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.
Claims (10)
1. A material balance control method for an analytic system is characterized by comprising the following steps:
acquiring the actual feeding time of each analysis tower and a first working frequency of a round roller unloading machine of each analysis tower in a preset time period, wherein the analysis system comprises a first analysis tower and a second analysis tower;
if the relative deviation value of the actual feeding time of the analysis tower does not meet the preset first deviation threshold range, generating a second working frequency of the circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower;
and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency.
2. The material balance control method according to claim 1, wherein the obtaining the actual feeding time of each desorption tower in the preset time period comprises:
and respectively obtaining the working time of the material distributor of the analysis tower communicated with each analysis tower, wherein the working time is the actual feeding time.
3. The material balance control method according to claim 1, further comprising:
and if the relative deviation value of the actual feeding time of the analysis tower meets a preset first deviation threshold range, maintaining a first working frequency of a circular roller unloading machine of the analysis tower.
4. The material balance control method according to claim 1, further comprising:
and if the first working frequency of the round roller unloading machine of each analysis tower is the same, and the relative deviation value of the actual feeding time of each analysis tower does not meet the range of a preset second deviation threshold value, determining that the round roller unloading machine of each analysis tower is in an abnormal state.
5. The material balance control method according to claim 1, further comprising:
and if the first working frequency of the circular roller unloader of each resolving tower is the same, determining material flow parameters according to the actual feeding time of the resolving tower, wherein the material flow parameters are used for judging the material flow state of the whole resolving system.
6. The method as claimed in claim 5, wherein the determining the stream parameters according to the actual feeding time of the desorption tower comprises:
calculating the material flow parameters according to the actual feeding time of the analysis tower and the following relational expression:
wherein x represents the average of the actual feed times, T1 represents the actual feed time of the first stripper, T2 represents the actual feed time of the second stripper, and y represents the stream parameters.
7. The material balance control method according to claim 1, wherein the generating a second operating frequency of the circular roller discharger of the stripper column according to the actual feeding time and the first operating frequency of the stripper column comprises: and calculating the second working frequency according to the actual feeding time and the first working frequency of the analysis tower and the following relational expression:
wherein M1 represents the second operating frequency of the ith stripper, M represents the first operating frequency, T represents the sum of the actual feed times of the two strippers, Ti represents the actual feed time of the ith stripper, and i is 1 or 2.
8. An apparatus for material balance control of an analytic system, comprising: the device comprises a desorption tower, a desorption tower material distributor and a control device;
the upper part of each analysis tower is provided with a material bin;
the analysis tower material distributor is arranged between the material bin and the analysis tower feeding conveyor and is used for distributing the materials conveyed by the analysis tower feeding conveyor to the corresponding material bin;
the control device is used for:
acquiring the actual feeding time of each analysis tower and a first working frequency of a round roller unloading machine of each analysis tower in a preset time period, wherein the analysis system comprises a first analysis tower and a second analysis tower;
if the relative deviation value of the actual feeding time of the analysis tower is larger than a first deviation preset threshold value, generating a second working frequency of a circular roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower;
and adjusting the first working frequency of the circular roller unloading machine of the analysis tower to be a second working frequency.
9. A system for material balance control of a resolving system, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the actual feeding time of each analysis tower in a preset time period and the first working frequency of a round roller unloader of each analysis tower, and the analysis system comprises a first analysis tower and a second analysis tower;
the generation module is used for generating a second working frequency of the round roller unloading machine of the analysis tower according to the actual feeding time and the first working frequency of the analysis tower when the relative deviation value of the actual feeding time of the analysis tower does not meet a preset first deviation threshold range;
and the adjusting module is used for adjusting the first working frequency of the round roller unloading machine of the analysis tower to be a second working frequency.
10. The material balance control system of claim 9,
and the acquisition submodule is used for respectively acquiring the working time of the material distributor of the analysis tower communicated with each analysis tower, and the working time is the actual feeding time.
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