CN117622811A - Control system and control method of adsorption purification system - Google Patents

Control system and control method of adsorption purification system Download PDF

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Publication number
CN117622811A
CN117622811A CN202210998961.0A CN202210998961A CN117622811A CN 117622811 A CN117622811 A CN 117622811A CN 202210998961 A CN202210998961 A CN 202210998961A CN 117622811 A CN117622811 A CN 117622811A
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real
volume
time
bucket
discharging
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廖婷婷
李俊杰
李宗平
曾小信
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Zhongye Changtian International Engineering Co Ltd
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Zhongye Changtian International Engineering Co Ltd
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Abstract

The invention aims to provide a control system and a control method of an adsorption purification system, wherein the adsorption purification system comprises an adsorption device and a first bucket chain machine, the first bucket chain machine is positioned below the adsorption device, and the adsorption device is provided with a roller feeder; the control method comprises the following steps: acquiring a plurality of groups of basic data information of the roller feeder, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeder, and the discharging parameters are used for representing the discharging speed of the roller feeder; substituting each group of basic data information into the formula one for regression solution to obtain a set parameter set { a } of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 -a }; equation one：f(x,y)＝a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The method comprises the steps of carrying out a first treatment on the surface of the According to the set parameter set { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set function relation among the rotating speed, the opening height and the discharging parameters according to the first formula; and controlling the roller feeder according to the set functional relation. The control system and the control method can control the roller feeder relatively accurately.

Description

Control system and control method of adsorption purification system
Technical Field
The invention relates to the technical field of adsorption purification systems, in particular to a control system and a control method of an adsorption purification system.
Background
In the fields of steel, coal, chemical industry and the like, an adsorbent such as activated carbon is generally adopted to remove SO in flue gas 2 The device is used for realizing the purification treatment of the flue gas.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a typical adsorption purification system.
As shown in fig. 1, a typical adsorption purification system includes an adsorption device, an analysis device 02, an adsorbent bin 03, a first bucket conveyor 04, and a second bucket conveyor 05, each of which is formed by connecting a plurality of adsorption units 01 in parallel. Wherein, the lower end of each adsorption unit 01 is provided with at least one opening, each opening is provided with a roller feeder, and the roller feeder is used for discharging the adsorbent in the adsorption unit 01 to the first bucket chain machine 04, and transporting the adsorbent to the first buffer bin 021 of the analysis device 02 by the first bucket chain machine, and the analyzed adsorbent can be transported to each second buffer bin 011 of the adsorption device through the second bucket chain machine 05. During the adsorption and analysis processes, the adsorbent has some loss, and when the material level in the first buffer bin 021 and the second buffer bin 011 is too low, the clean adsorbent in the adsorbent bin 03 can be supplemented, and the adsorbent is weighed by the belt conveyor 06 and then conveyed to the first chain bucket machine 04.
Disclosure of Invention
The invention aims to provide a control system and a control method of an adsorption purification system, which can control a roller feeder relatively accurately.
In order to solve the technical problems, the invention provides a control method of an adsorption purification system, wherein the adsorption purification system comprises an adsorption device and a first bucket chain machine, the first bucket chain machine is positioned below the adsorption device, and the adsorption device is provided with a roller feeder; the saidThe control method comprises the following steps: a first acquisition step of acquiring a plurality of groups of basic data information of the roller feeder, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeder, and the discharging parameters are used for representing the discharging speed of the roller feeder; a first calculation step of substituting each group of the basic data information into a formula one for regression solution to obtain a set parameter set { a } of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 -a }; equation one: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The method comprises the steps of carrying out a first treatment on the surface of the A second acquisition step of acquiring a set { a } according to the set of parameters 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set functional relation among the rotating speed, the opening height and the discharging parameters according to the first formula; and a first control step of controlling the roller feeder according to the set functional relation.
By adopting the scheme, the control method can obtain the set functional relation among the rotating speed, the opening height and the discharging parameters of the roller feeder through regression fitting of the basic data information of the roller feeder, and can more accurately control any one of the rotating speed, the opening height and the discharging parameters of the roller feeder through the set functional relation when the method is specifically implemented, so that the balance control of the adsorbent in the adsorption purification system is facilitated, and the utilization efficiency of the adsorbent, the purification treatment effect of flue gas and the like can be improved.
Optionally, in the first calculating step, the rotation speed is f (x, y), the discharge parameter is x, and the opening height is y.
Optionally, the number of the roller feeders is multiple, each roller feeder is sequentially arranged along the running direction of the first bucket chain machine, the first bucket chain machine comprises a plurality of buckets, and measuring components are arranged at the downstream of each roller feeder and are used for measuring the real-time volume of the adsorbent in the bucket chain passing through the corresponding measuring component; the discharging parameter is any one of discharging volume, discharging weight and discharging flow of the corresponding roller feeder in the chain bucket.
Optionally, the first obtaining step includes: a first acquisition sub-step of acquiring a first real-time volume measured by the measuring part at the downstream of the set roller feeder and a second real-time volume measured by the measuring part at the upstream of the set roller feeder at the same time; and a first calculation sub-step of taking a difference value between the first real-time volume and the second real-time volume to obtain the discharging volume of the set roller feeder.
Optionally, the first obtaining step includes: a second acquisition sub-step of acquiring a third real-time volume of a set bucket measured by the measuring means downstream of the set roll feeder and a fourth real-time volume of the set bucket measured by the measuring means upstream of the set roll feeder; and a second calculation sub-step of taking a difference value of the third real-time volume and the fourth real-time volume to obtain the discharging volume of the set roller feeder.
Optionally, the first bucket chain machine comprises a plurality of buckets, and the control method further comprises: a third acquisition step of acquiring a real-time loading volume of the adsorbent in the bucket passing through the adsorption device, and an actual running speed of the first bucket machine and a full loading volume of the bucket; a second calculation step of calculating a theoretical operation speed of the first bucket chain machine according to the real-time loading volume, the actual operation speed and the full loading volume; and a second control step of controlling the first bucket chain machine to run at the theoretical running speed so that the real-time loading volume is equal to the full loading volume.
Optionally, the second calculating step specifically includes: calculating the theoretical running speed through the following formula II;
formula II:
wherein v is Theory of For the theoretical running speedDegree, v Actual practice is that of For the actual operating speed, V Real time For the real-time loading volume, V Full load Is the full volume.
Optionally, the second calculating step specifically includes: calculating the theoretical operating speed through the following formula III;
and (3) a formula III:
wherein v is Theory of For the theoretical operating speed, v Actual practice is that of For the actual running speed, d is the dimension of the chain bucket in the running direction of the first chain bucket machine, V Real time j The real-time loading volume of each actually passing chain bucket in the actual running distance of the first chain bucket machine in unit time is V Full load Is the full volume.
The invention also provides a control system of the adsorption purification system, which comprises an adsorption device and a first bucket chain machine, wherein the first bucket chain machine is positioned below the adsorption device, and the adsorption device is provided with a roller feeder; the control system includes: the first acquisition module is used for acquiring a plurality of groups of basic data information of the roller feeder, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeder, and the discharging parameters are used for representing the discharging speed of the roller feeder; the first calculation module is in signal connection with the first acquisition module and is used for receiving the basic data information and substituting each group of the basic data information into a formula one for regression solution so as to acquire a set parameter set { a } of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 -a }; equation one: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The method comprises the steps of carrying out a first treatment on the surface of the A second acquisition module, in signal connection with the first calculation module, for receiving the set of parameters { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 And is used forAccording to the set parameter set { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set functional relation among the rotating speed, the opening height and the discharging parameters according to the first formula; the first control module is in signal connection with the second acquisition module, and is used for acquiring the set function relation and controlling the roller feeder according to the set function relation.
Optionally, the number of the roller feeders is multiple, each roller feeder is sequentially arranged along the running direction of the first bucket machine, the first bucket machine comprises a plurality of buckets, measuring components are configured at the downstream of each roller feeder and are used for measuring the real-time volume of the adsorbent in the bucket passing through the corresponding measuring component, and the first acquisition module comprises the measuring components; the discharging parameter is any one of discharging volume, discharging weight and discharging flow of the corresponding roller feeder in the chain bucket.
Optionally, the first acquisition module includes: the first acquisition submodule is used for acquiring a first real-time volume measured by the measuring component at the downstream of the set roller feeder and a second real-time volume measured by the measuring component at the upstream of the set roller feeder at the same time; the first calculation submodule is in signal connection with the first acquisition submodule and is used for receiving the first real-time volume and the second real-time volume and taking a difference value from the first real-time volume and the second real-time volume so as to acquire the discharging volume of the set roller feeder.
Optionally, the first acquisition module includes: a second acquisition sub-module for acquiring a third real-time volume measured by the measuring component of the set chain bucket downstream of the set roller feeder and a fourth real-time volume measured by the measuring component of the set chain bucket upstream of the set roller feeder; the second calculation submodule is in signal connection with the second acquisition submodule and is used for receiving the third real-time volume and the fourth real-time volume and taking a difference value from the third real-time volume and the fourth real-time volume so as to acquire the discharging volume of the set roller feeder.
Optionally, the first bucket machine comprises a plurality of buckets, a measuring component is arranged at the downstream of the adsorption device and is used for measuring the real-time volume of the adsorbent in the buckets passing through the measuring component; the control system further includes: a third acquisition module for acquiring the real-time loading volume of the adsorbent in the chain bucket passing through the adsorption device, the actual running speed of the first chain bucket machine and the full loading volume of the chain bucket; the second calculation module is in signal connection with the third acquisition module and is used for acquiring the real-time loading volume, the actual running speed and the full-load volume and calculating the theoretical running speed of the first chain bucket machine according to the real-time loading volume, the actual running speed and the full-load volume; and the second control module is in signal connection with the second calculation module and is used for receiving the theoretical running speed and controlling the first bucket chain machine to run at the theoretical running speed so that the real-time loading volume is equal to the full loading volume.
Optionally, the first control module and the second control module are integrated in the same controller.
Drawings
FIG. 1 is a schematic diagram of a typical adsorption purification system;
FIG. 2 is a schematic structural diagram of a control method of an adsorption purification system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a specific embodiment of the first obtaining step;
FIG. 4 is a schematic view of another embodiment of the first obtaining step;
FIG. 5 is a schematic structural diagram of another embodiment of a control method of an adsorption purification system according to the present invention;
FIG. 6 is a schematic diagram of a control system of an adsorption purification system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the first acquisition module, the first calculation module, and the chain bucket;
fig. 8 is a schematic structural diagram of another embodiment of a control system of an adsorption purification system according to the present invention.
The reference numerals in fig. 1 are explained as follows:
01 adsorption unit, 011 second surge bin, 02 analytical device, 021 first surge bin, 03 adsorbent bin, 04 first bucket chain machine, 05 second bucket chain machine.
The reference numerals in fig. 6-8 are illustrated as follows:
100 chain hoppers;
the system comprises a first acquisition module, a 1a measurement part, a 1b signal acquisition part, a first acquisition sub-module 11, a first calculation sub-module 12, a second acquisition sub-module 13 and a second calculation sub-module 14;
2 a first calculation module;
3, a second acquisition module;
4, a first control module;
5, a third acquisition module;
6 a second calculation module;
and 7, a second control module.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
In embodiments of the present invention, the terms "first," "second," "third," "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and for example, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium. Wherein, "fixedly connected" means that the relative positional relationship is unchanged after being connected with each other. "rotationally coupled" means coupled to each other and capable of relative rotation after coupling. "slidingly coupled" means coupled to each other and capable of sliding relative to each other after being coupled.
References to orientation terms, such as "upper", "lower", etc., in the embodiments of the present invention are only with reference to the orientation of the accompanying drawings, and thus, the use of orientation terms is intended to better and more clearly describe and understand the embodiments of the present invention, rather than to indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the embodiments of the present invention. Furthermore, unless otherwise indicated herein, the terms "a," "an," and "a plurality" herein mean two or more; in addition, when the number of components is represented by "several" or "a plurality of" the components, the number of the components is not represented by the relationship therebetween.
In the description of embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the embodiment of the present invention, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Example 1
Referring to fig. 2 to 5, fig. 2 is a schematic structural diagram of an embodiment of a control method of an adsorption purification system according to the present invention, fig. 3 is a schematic structural diagram of an embodiment of a first obtaining step, fig. 4 is a schematic structural diagram of another embodiment of the first obtaining step, and fig. 5 is a schematic structural diagram of another embodiment of a control method of an adsorption purification system according to the present invention.
The adsorption purification system is a common flue gas treatment system, and can effectively adsorb and remove pollutants such as dust particles and harmful gases in flue gas by configuring an adsorbent of a proper type, and can also realize the recycling of the adsorbent by transferring, analyzing and the like of the adsorbent, so that the cost of flue gas treatment can be greatly saved.
The specific structure of the adsorption purification system can be found in the description of the background section and related prior art, and the following description is only given for some devices according to the embodiments of the present invention.
The adsorption purification system includes an adsorption apparatus formed by combining a plurality of adsorption units, which in some embodiments are also referred to as adsorption towers. The adsorption device is filled with an adsorbent for absorbing pollutants in the flue gas. The adsorbent can be activated carbon, natural organic adsorbent, natural inorganic adsorbent, some synthetic adsorbent, etc. The adsorption device is provided with a roller feeder, a first bucket conveyor is arranged below the adsorption device, the first bucket conveyor is provided with a plurality of buckets, and the adsorbent in the adsorption device can be conveyed to the buckets of the first bucket conveyor through the roller feeder and can be conveyed to a downstream device through the first bucket conveyor so as to finish the transportation of the adsorbent.
The discharge rate of the roll feeder determines the circulation rate of the adsorbent in the adsorption apparatus, which is an important parameter of the adsorption purification system, and how to precisely control this parameter is always a matter of great concern to those skilled in the art.
The embodiment of the invention aims to provide a method for controlling the discharge speed of the roller feeder more accurately, so as to be beneficial to realizing balance control of the adsorbent in the adsorption purification system. Of course, the control method can control not only the discharging speed, but also the opening height, the rotating speed, the running speed of the first bucket conveyor and the like of the roller feeder.
As shown in fig. 1, the control method of the adsorption purification system according to the present invention includes at least a first acquisition step S1, a first calculation step S2, a second acquisition step S3, and a first control step S4 described below. The following will explain each step in detail.
The first obtaining step S1 specifically includes: and acquiring basic data information of a plurality of groups of roller feeders.
The above-mentioned several groups of basic data information are all related data of the same roll feeder, and correspondingly, the subsequently produced control strategy is also aimed at controlling this roll feeder. When different roller feeders need to be controlled, basic data information of the different roller feeders can be acquired respectively, and then the following steps are executed respectively to acquire control strategies of the different roller feeders respectively. Here, the embodiment of the present invention is not limited to the number of groups of the basic data information, and in specific practice, a person skilled in the art may set the number according to actual needs, so long as the number can meet the requirement of use; it is understood that the greater the number of sets of the basic data information, the higher the accuracy of the regression solution performed in the second calculation step S2 described below.
The basic data information comprises the rotating speed, the opening height and the discharging parameter of the roller feeder, wherein the discharging parameter is a parameter which can represent the discharging speed of the roller feeder.
The first calculation step S2 specifically includes: substituting each group of basic data information into the following formula one to carry out regression solution so as to obtain a set parameter set { a } of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 }. The formula one is specifically: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 。
The second obtaining step S3 specifically includes: according to the set parameter set { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 And obtaining a set functional relation among the rotating speed, the opening height and the discharging parameters according to the first formula. The set functional relationship is a binary quadratic function with respect to rotational speed, opening height and discharge parameters.
The first control step S4 specifically includes: and controlling the roller feeder according to the set functional relation.
By adopting the scheme, the control method according to the embodiment can obtain the set functional relation among the rotating speed, the opening height and the discharging parameters of the roller feeder through regression fitting of the basic data information of the roller feeder, and can more accurately control any one of the rotating speed, the opening height and the discharging parameters of the roller feeder through the set functional relation when the method is specifically implemented, so that balance control of the adsorbent in the adsorption purification system is facilitated, and therefore the utilization efficiency of the adsorbent, the purification treatment effect of flue gas and the like can be improved.
In actual production, the opening height of the roller feeder is generally not adjusted, that is, the opening height may be a determined value, and then the rotation speed of the roller feeder may be adjusted according to the target discharge parameter required by production and the set functional relationship so as to achieve the target discharge parameter required by production.
Of course, if there is a change in the volume of the adsorbent (e.g., activated carbon) and it is desired to adjust the opening height, the opening height may also be calculated based on the given rotational speed and discharge parameters using the set functional relationship described above, and then the threshold value of the adjustable range of the opening height may be combined to obtain the final opening height adjustment value.
In the embodiment of the present invention, the correspondence between f (x, y), x, y and the rotation speed, the discharging parameter, and the opening height in the formula one is not limited, and in specific practice, the person skilled in the art can adjust the corresponding relation as required.
For example, the rotational speed may be corresponding to f (x, y), the discharge parameter may be corresponding to x, and the opening height may be corresponding to y; or, the rotation speed can be corresponding to f (x, y), the opening height can be corresponding to x, and the discharging parameter can be corresponding to y; alternatively, the opening height may be f (x, y), the rotation speed may be x, and the discharge parameter may be y; or, the opening height can be corresponding to f (x, y), the discharging parameter can be corresponding to x, and the rotating speed can be corresponding to y; or, the discharging parameter may be f (x, y), the opening height is x, and the rotation speed is y; alternatively, the discharge parameter may be f (x, y), the rotation speed may be x, and the opening height may be y.
Taking the rotation speed corresponding to f (x, y), the discharge parameter corresponding to x and the opening height corresponding to y as examples, the set functional relationship can be: n=a 20 p 2 +a 02 h 2 +a 11 ph+a 10 p+a 01 h+a 00 . Wherein n represents the rotating speed of the roller feeder, p represents the discharging parameter, and h represents the opening height of the roller feeder.
The number of the roller feeders can be multiple, and correspondingly, the embodiment of the invention can respectively formulate a control strategy for each roller feeder according to the steps. Each roller feeder can be arranged in sequence along the running direction of the first chain bucket machine, and the downstream of each roller feeder is provided with a measuring component for measuring the real-time volume of the adsorbent in the chain bucket passing through the lower part of the corresponding measuring component. The type of the measuring means is not limited herein, and in specific practice, a person skilled in the art may select the measuring means according to actual needs, so long as the real-time volume of the adsorbent in each bucket can be fed back.
Assuming that there are n roller feeders, there are correspondingly, i.e. n measuring parts, which can be arranged in sequence in the direction of travel of the first chain bucket machine. For convenience of description, the measuring components may be numbered sequentially from upstream to downstream, and the number of each measuring component is 1 # 、2 # 、…、i # 、…n # Correspondingly, the real-time volumes measured by the measuring components are respectively recorded as V 1 、V 2 、…、V i 、…、V n 。
The discharging parameters can be the discharging volume V of the corresponding roller feeder in the chain bucket Discharging material Weight W of discharged material Discharging material Discharge flow F Discharging material Any one of the above. Wherein W is Discharging material ＝V Discharging material X ρ, ρ is the density of the adsorbent; f (F) Discharging material ＝W Discharging material And/. DELTA.t, DELTA.t is the time it takes for the bucket to travel from an upstream measurement member to an adjacent downstream measurement member.
Discharge volume V Discharging material Weight W of discharged material Discharging material Discharge flow F Discharging material Any of these can characterize the discharge rate, and the following examples of the present application are mainly based on the discharge volume V Discharging material An example is described.
In a first aspect, as shown in fig. 3, the first obtaining step S1 may include: a first acquisition sub-step S11 of acquiring a first real-time volume V measured by a downstream measuring component of the set-up roller feeder i t And at the same time, setting a second real-time volume measured by an upstream measuring component of the roll feederA first calculation sub-step of calculating a first real-time volume V i t And a second real-time volume->Taking the difference value to obtain the discharge volume V of the set roller feeder Discharging material 。
V is also described as i t In particular the number i # The real-time volume of the adsorbent in the chain bucket below the measuring part at the time t,specifically, the number is (i-1) # The real-time volume of the adsorbent in the chain bucket below the measuring part at the time t is measured and is numbered as i # And number (i-1) # The roll feeder between the measuring parts of (a) is the above-mentioned setting roll feeder, and the setting roll feeder mentioned here may be any roll feeder other than the most upstream roll feeder.
It will be appreciated that when the adsorption purification system is operating steadily, the real-time volumes of the adsorbents within the hoppers are all the same as the different hoppers pass under the same measurement member. Thus, the first and second substrates are bonded together,can be expressed as t time is at the ith # The chain bucket below the number measuring part is formed by the (i-1) th time at the t-delta t moment # Real-time volume measured by the number measuring part, thus, the discharge volume of the roll feeder is set +.>
In a second aspect, as shown in fig. 4, the first obtaining step S1 may include: a second acquisition sub-step S11' of acquiring a third real-time volume V of the set chain bucket measured by a downstream measuring component of the set roller feeder i t And a fourth real-time volume of the set chain bucket measured by an upstream measuring component of the set roller feeder A second calculation sub-step S12' of the third real-time volume V i t And a fourth real-time volume->Taking the difference value to obtain the discharge volume V of the set roller feeder Discharging material . Specifically, the->
It should be noted that the number of the substrates,to set the chain bucket at the time of t-delta t, the chain bucket is numbered as (i-1) # Real-time volume measured by the measuring part of (2), V i t To set the chain bucket to be numbered i at the time t # The real-time volume measured by the measuring part is numbered i # And number (i-1) # The roll feeder between the measuring members is the above-mentioned setting roll feeder, and the setting roll feeder mentioned here may be any roll feeder other than the most upstream roll feeder.
Unlike the first solution described above, the present solution calculates the real-time volume of the same bucket at different moments, and this calculation method considers possible production fluctuations in actual production, and the accuracy of the calculation result is higher.
In addition, the setting roll feeders according to the first and second aspects described above do not include the most upstream roll feeder, and the discharge volume of the most upstream roll feeder in the bucket is V Discharging material ＝V 1 I.e. number 1 # The real-time volume of adsorbent passing through the bucket therebelow is measured by the measuring means of (c).
In some alternative embodiments, as shown in fig. 5, the control method provided by the present invention may further include: a third acquisition step S5 of acquiring the real-time loading volume V of the adsorbent in the bucket passing through the adsorption device Real time And the actual running speed v of the first bucket machine Actual practice is that of And the full-load volume V of the chain bucket Full load The method comprises the steps of carrying out a first treatment on the surface of the A second calculation step S6, according to the real-time loading volume V Real time Actual running speed v Actual practice is that of And a full load volume V Full load Calculating the theoretical running speed v of the first chain bucket machine Theory of The method comprises the steps of carrying out a first treatment on the surface of the A second control step S7 of controlling the first bucket conveyor to operate at a theoretical operating speed v Theory of Run such that the volume V is loaded in real time Real time Equal to the full-load volume V Full load 。
In the actual operation process, the real-time loading volume V of the adsorbent in the chain bucket after passing through the adsorption device Real time Possibly less than the full volume V Full load In this way, the loading capacity of the first bucket elevator is not actually fully utilized. After the third obtaining step S5, the second calculating step S6 and the second controlling step S7 are adopted, the real-time loading volume V can be obtained Real time Equal to the full-load volume V Full load So as to fully exert the loading capacity of the first bucket chain machine, and the running speed of the first bucket chain machine is controlled, thereby being beneficial to reducing the energy consumption of the system.
Real-time loading volume V Real time Can be measured by the aforementioned nth # The number measuring part is completed. Alternatively, in the present embodiment, a single measuring means may be provided downstream of the adsorption device for detecting the real-time loading volume V Real time That is, it is also possible to configure only one measuring member.
With the discharge volume V Discharging material Similar to the calculation of (a), the embodiment of the present invention is for the theoretical operating speed v Theory of The calculation scheme of (a) can also comprise two calculation schemes, and the specific reference can be seen below.
In the first scheme, the second calculating step S6 may specifically be: calculating a theoretical running speed through the following formula II;
formula II:
wherein v is Actual practice is that of For the actual running speed, which is characterized by the actual running distance of the first bucket machine in unit time, the size of the buckets in the running direction of the first bucket machine is determined, the embodiment of the invention is set as d, and the number of the actually passed buckets in the actual running distance is v Actual practice is that of /d; and when the adsorption purification system stably operates, the real-time loading volume V of different chain hoppers after passing through the adsorption device Real time Should be identical. Then the actual loading of the adsorbent after passing through the adsorption device in unit time is v Actual practice is that of ×V Real time /d。
Similarly, the theoretical loading capacity of the adsorbent after the first bucket chain machine passes through the adsorption device in unit time is v Theory of ×V Full load /d, letThe formula II can be obtained.
In the second scheme, the second calculating step S6 may specifically be: calculating a theoretical running speed through the following formula III;
and (3) a formula III:
wherein v is Actual practice is that of And/d is the number of actually passing chain hoppers in the actual running distance of the first chain hopper machine in unit time, V Real time j For each real-time loading volume of the actual passing chain bucket, the actual loading capacity of the adsorbent after the first chain bucket machine passes through the adsorption device in unit time is as follows
The theoretical loading capacity of the adsorbent of the first bucket chain machine after passing through the adsorption device in unit time is v Theory of ×V Full load /d, letThe above formula three can be derived.
Example two
Referring to fig. 6 to fig. 8, fig. 6 is a schematic structural diagram of an embodiment of a control system of an adsorption purification system according to the present invention, fig. 7 is a schematic structural diagram of a first acquisition module, a first calculation module and a chain bucket, and fig. 8 is a schematic structural diagram of another embodiment of a control system of an adsorption purification system according to the present invention.
Based on the control method of the adsorption purification system according to the first embodiment, the embodiment of the present invention further provides a control system of the adsorption purification system, and the structural form of the adsorption purification system adapted to the control system may be referred to the first embodiment, and will not be repeatedly described herein.
As shown in fig. 6, the control system includes: a first acquisition module 1 for acquiring basic data information of a plurality of groups of roller feeders, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeders, and the discharging parameters are used for representingDischarging speed of the roller feeder; the first calculation module 2 is in signal connection with the first acquisition module 1, and is configured to receive the basic data information, and to apply each group of basic data information to the formula one for regression solution to acquire a set parameter set { a) of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 -a }; equation one: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The method comprises the steps of carrying out a first treatment on the surface of the A second acquisition module 3 in signal connection with the first calculation module 2 for receiving the set of parameters { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 And is used for setting parameter set { a }, according to 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set function relation among the rotating speed, the opening height and the discharging parameters according to the first formula; the first control module 4 is in signal connection with the second acquisition module 3 and is used for acquiring a set function relation and controlling the roller feeder according to the set function relation.
Similar to the first description of the embodiment, the control system according to the embodiment can obtain the set functional relation among the rotating speed, the opening height and the discharging parameters of the roller feeder through regression fitting of the basic data information of the roller feeder, and can more accurately control any one of the rotating speed, the opening height and the discharging parameters of the roller feeder through the set functional relation during specific implementation, so that the balance control of the adsorbent in the adsorption purification system is facilitated, and the utilization efficiency of the adsorbent, the purification treatment effect of flue gas and the like can be improved.
The control modes of the rotating speed, the opening height and the discharging parameters can be seen in the first embodiment.
The number of the roller feeders may be plural, and each roller feeder is sequentially arranged along the running direction of the first hopper machine. Referring to fig. 7, the first bucket machine includes a plurality of buckets 100, and measuring units 1a are disposed downstream of each of the roller feeders, and are configured to measure a real-time volume of the adsorbent passing through the bucket 100 under the corresponding measuring unit 1a, the first acquisition module 1 includes the measuring unit 1a, data collected by each of the measuring units 1a may be collected by a signal collecting unit 1b, and the first acquisition module 1 may further include the signal collecting unit 1b. In some embodiments, the signal acquisition component 1b may also be absent, i.e. the measuring components 1a may be directly in signal connection with the first computing module 2.
The first acquisition module 1 may also comprise a rotational speed sensor for acquiring the rotational speed of the roll feeder. As for the opening height of the roller feeder, the opening height can be a measured value, and of course, a corresponding sensor can be configured to monitor and acquire the opening height in real time.
The discharging parameter can be the discharging volume V of the corresponding roller feeder in the chain bucket 100 Discharging material Weight W of discharged material Discharging material Discharge flow F Discharging material In the following, the discharge volume will be mainly described as an example.
In some aspects, the first acquisition module 1 may include: a first acquisition sub-module 11 for acquiring a first real-time volume V measured by a downstream measuring member 1a of the set-up roller feeder i t And at the same time, setting a second real-time volume measured by the upstream measuring part 1a of the roll feederA first calculation sub-module 12 in signal connection with the first acquisition sub-module 11 for receiving the first real-time volume V i t And a second real-time volume->And is used to measure a first real-time volume V i t And a second real-time volume->Taking the difference value to obtain the discharge volume V of the set roller feeder Discharging material . Specifically, the discharge volume +_ of the roll feeder is set>
In other aspects, the first acquisition module 1 may include: a second acquisition sub-module 13 for acquiring a third real-time volume V measured by the downstream measuring part 1a of the set-up chain bucket in the set-up roller feeder i t And a fourth real-time volume measured by the set chain bucket at the upstream measuring part 1a of the set roller feederA second calculation sub-module 14 in signal connection with the second acquisition sub-module 13 for receiving the third real-time volume V i t And a fourth real-time volume->And is used to store a third real-time volume V i t And a fourth real-time volume->Taking the difference value to obtain the discharge volume V of the set roller feeder Discharging material . Specifically, the discharge volume +_ of the roll feeder is set>
In some alternative embodiments, as shown in fig. 8, the control system may further include: a third acquisition module 5 for acquiring the real-time loading volume V of the adsorbent in the chain bucket 100 passing through the adsorption device Real time And the actual running speed v of the first bucket machine Actual practice is that of And full load volume V of bucket 100 Full load The method comprises the steps of carrying out a first treatment on the surface of the A second calculation module 6 in signal connection with the third acquisition module 5 for acquiring the real-time loading volume V Real time Actual running speed v Actual practice is that of And a full load volume V Full load And is used for loading the volume V according to real time Real time Actual running speed v Actual practice is that of And a full load volume V Full load Calculating the theoretical running speed v of the first chain bucket machine Theory of The method comprises the steps of carrying out a first treatment on the surface of the A second control module 7 in signal connection with the second calculation module 6 for receiving the information Theoretical operating speed v Theory of And is used for controlling the first chain bucket machine to operate at a theoretical operating speed v Theory of Run such that the volume V is loaded in real time Real time Equal to the full-load volume V Full load 。
In the present embodiment, the real-time loading volume V can be obtained from the downstream-most measuring part 1a among the aforementioned several measuring parts 1a Real time . Alternatively, it is also possible to arrange only one measuring means 1a downstream of the adsorption device and then measure the real-time loading volume V of the adsorbent in the bucket 100 by the measuring means 1a Real time This also makes it possible to reduce the number of use of the measuring parts 1a to simplify the structure of the apparatus.
In the present embodiment, the theoretical operating speed v of the first bucket elevator Theory of The calculation method of (2) can be seen in the first embodiment, and will not be repeated here.
In practical use, the first control module 4 and the second control module 7 may be integrated in the same controller, so as to improve the integration level of the device. Of course, the first control module 4 and the second control module 7 may also be provided separately, so as to avoid mutual interference between the two control modules.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (14)

1. A control method of an adsorption purification system including an adsorption device and a first bucket conveyor, the first bucket conveyor being located below the adsorption device, the adsorption device being provided with a roller feeder, the control method comprising:
a first acquisition step of acquiring a plurality of groups of basic data information of the roller feeder, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeder, and the discharging parameters are used for representing the discharging speed of the roller feeder;
first meterA calculation step of substituting each group of the basic data information into a formula one for regression solution to obtain a set parameter set { a } of the formula one 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 }；
Equation one: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 ；
A second acquisition step of acquiring a set { a } according to the set of parameters 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set functional relation among the rotating speed, the opening height and the discharging parameters according to the first formula;
and a first control step of controlling the roller feeder according to the set functional relation.
2. The method according to claim 1, wherein in the first calculation step, the rotation speed is f (x, y), the discharge parameter is x, and the opening height is y.
3. The method according to claim 1, wherein the number of the roller feeders is plural, each of the roller feeders is arranged in order along the running direction of the first hopper machine, the first hopper machine includes a plurality of hoppers, and a measuring part is provided downstream of each of the roller feeders for measuring a real-time volume of the adsorbent in the hopper passing through the corresponding measuring part;
the discharging parameter is any one of discharging volume, discharging weight and discharging flow of the corresponding roller feeder in the chain bucket.
4. The method of controlling an adsorption purification system according to claim 3, wherein the first obtaining step includes:
a first acquisition sub-step of acquiring a first real-time volume measured by the measuring part at the downstream of the set roller feeder and a second real-time volume measured by the measuring part at the upstream of the set roller feeder at the same time;
and a first calculation sub-step of taking a difference value between the first real-time volume and the second real-time volume to obtain the discharging volume of the set roller feeder.
5. The method of controlling an adsorption purification system according to claim 3, wherein the first obtaining step includes:
A second acquisition sub-step of acquiring a third real-time volume of a set bucket measured by the measuring means downstream of the set roll feeder and a fourth real-time volume of the set bucket measured by the measuring means upstream of the set roll feeder;
and a second calculation sub-step of taking a difference value of the third real-time volume and the fourth real-time volume to obtain the discharging volume of the set roller feeder.
6. The control method of an adsorption purification system according to any one of claims 1 to 5, wherein the first bucket elevator includes a plurality of buckets, the control method further comprising:
a third acquisition step of acquiring a real-time loading volume of the adsorbent in the bucket passing through the adsorption device, and an actual running speed of the first bucket machine and a full loading volume of the bucket;
a second calculation step of calculating a theoretical operation speed of the first bucket chain machine according to the real-time loading volume, the actual operation speed and the full loading volume;
and a second control step of controlling the first bucket chain machine to run at the theoretical running speed so that the real-time loading volume is equal to the full loading volume.
7. The method according to claim 6, wherein the second calculation step is specifically: calculating the theoretical running speed through the following formula II;
formula II:
wherein v is Theory of For the theoretical operating speed, v Actual practice is that of For the actual operating speed, V Real time For the real-time loading volume, V Full load Is the full volume.
8. The method according to claim 6, wherein the second calculation step is specifically: calculating the theoretical operating speed through the following formula III;
and (3) a formula III:
wherein v is Theory of For the theoretical operating speed, v Actual practice is that of For the actual running speed, d is the dimension of the chain bucket in the running direction of the first chain bucket machine, V Real time j The real-time loading volume of each actually passing chain bucket in the actual running distance of the first chain bucket machine in unit time is V Full load Is the full volume.
9. A control system of an adsorption purification system, the adsorption purification system comprising an adsorption device and a first bucket chain machine, the first bucket chain machine being located below the adsorption device, the adsorption device being configured with a roller feeder, the control system comprising:
The first acquisition module is used for acquiring a plurality of groups of basic data information of the roller feeder, wherein the basic data information comprises the rotating speed, the opening height and the discharging parameters of the roller feeder, and the discharging parameters are used for representing the discharging speed of the roller feeder;
a first calculation module in signal connection with the first acquisition module for receiving the basic data information and for combining the groupsSubstituting the basic data information into a formula I to perform regression solution to obtain a set parameter set { a } of the formula I 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 }；
Equation one: f (x, y) =a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 ；
A second acquisition module, in signal connection with the first calculation module, for receiving the set of parameters { a } 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 -and for setting a parameter set { a } in dependence on the set of parameters 20 ，a 02 ，a 11 ，a 10 ，a 01 ，a 00 Acquiring a set functional relation among the rotating speed, the opening height and the discharging parameters according to the first formula;
the first control module is in signal connection with the second acquisition module, and is used for acquiring the set function relation and controlling the roller feeder according to the set function relation.
10. The control system of an adsorption purification system according to claim 9, wherein the number of said roller feeders is plural, each of said roller feeders being arranged in sequence along a running direction of said first hopper machine, said first hopper machine comprising a plurality of hoppers, each of said roller feeders being provided downstream with a measuring means for measuring a real-time volume of adsorbent in said hopper passing through the corresponding measuring means, said first acquisition module comprising said measuring means;
The discharging parameter is any one of discharging volume, discharging weight and discharging flow of the corresponding roller feeder in the chain bucket.
11. The control system of an adsorption purification system of claim 10, wherein the first acquisition module comprises:
the first acquisition submodule is used for acquiring a first real-time volume measured by the measuring component at the downstream of the set roller feeder and a second real-time volume measured by the measuring component at the upstream of the set roller feeder at the same time;
the first calculation submodule is in signal connection with the first acquisition submodule and is used for receiving the first real-time volume and the second real-time volume and taking a difference value from the first real-time volume and the second real-time volume so as to acquire the discharging volume of the set roller feeder.
12. The control system of an adsorption purification system of claim 10, wherein the first acquisition module comprises:
a second acquisition sub-module for acquiring a third real-time volume measured by the measuring component of the set chain bucket downstream of the set roller feeder and a fourth real-time volume measured by the measuring component of the set chain bucket upstream of the set roller feeder;
The second calculation submodule is in signal connection with the second acquisition submodule and is used for receiving the third real-time volume and the fourth real-time volume and taking a difference value from the third real-time volume and the fourth real-time volume so as to acquire the discharging volume of the set roller feeder.
13. The control system of an adsorption purification system according to any one of claims 9-12, wherein the first bucket engine comprises a plurality of buckets, the control system further comprising:
a third acquisition module for acquiring the real-time loading volume of the adsorbent in the chain bucket passing through the adsorption device, the actual running speed of the first chain bucket machine and the full loading volume of the chain bucket;
the second calculation module is in signal connection with the third acquisition module and is used for acquiring the real-time loading volume, the actual running speed and the full-load volume and calculating the theoretical running speed of the first chain bucket machine according to the real-time loading volume, the actual running speed and the full-load volume;
and the second control module is in signal connection with the second calculation module and is used for receiving the theoretical running speed and controlling the first bucket chain machine to run at the theoretical running speed so that the real-time loading volume is equal to the full loading volume.
14. The control system of claim 13, wherein the first control module and the second control module are integrated into the same controller.
CN202210998961.0A 2022-08-19 2022-08-19 Control system and control method of adsorption purification system Pending CN117622811A (en)

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