Control system and control method of an adsorptive purification system

Abstract

The application aims to provide a control system and a control method of an adsorption purification system, the adsorption purification system comprising an adsorption device and a first chain bucket machine, the first chain bucket machine being located below the adsorption device, and the adsorption device being provided with a roller feeder; the control method comprising: obtaining a plurality of sets of basic data information of the roller feeder, the basic data information comprising a rotating speed, an opening height and a discharging parameter of the roller feeder, the discharging parameter being used to represent a discharging speed of the roller feeder; substituting each set of basic data information into Formula I to regress and solve, so as to obtain a set of set parameters {a 20 , a 02 , a 11 , a 10 , a 01 , a 00} of Formula I; Formula I: f(x, y) = a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 ; obtaining a set function relationship among the rotating speed, the opening height and the discharging parameter according to the set parameters {a 20 , a 02 , a 11 , a 10 , a 01 , a 00} and Formula I; and controlling the roller feeder according to the set function relationship. The control system and the control method can relatively accurately control the roller feeder.

Description

Technical Field

[0001] This invention relates to the field of adsorption purification system technology, and specifically to a control system and control method for an adsorption purification system. Background Technology

[0002] In industries such as steel, coal, and chemicals, activated carbon and other adsorbents are commonly used to remove SO2 from flue gas for purification.

[0003] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a typical adsorption purification system.

[0004] like Figure 1 As shown, a typical adsorption purification system includes an adsorption device consisting of multiple adsorption units 01 connected in parallel, a desorption device 02, an adsorbent bin 03, a first bucket elevator 04, and a second bucket elevator 05. Each adsorption unit 01 has at least one opening at its lower end, and each opening is equipped with a roller feeder. The roller feeder discharges the adsorbent from the adsorption unit 01 to the first bucket elevator 04, which then transports it to the first buffer bin 021 of the desorption device 02. The desorbed adsorbent can then be transported via the second bucket elevator 05 to the second buffer bins 011 of the adsorption device. During the adsorption and desorption process, some adsorbent is lost. When the material level in the first buffer bin 021 or the second buffer bin 011 is too low, it can be replenished by clean adsorbent from the adsorbent bin 03. After being weighed by a belt conveyor 06, it is then transported to the first bucket elevator 04. Summary of the Invention

[0005] The purpose of this invention is to provide a control system and control method for an adsorption purification system, which can perform relatively precise control of the roller feeder.

[0006] To solve the above-mentioned technical problems, the present invention provides a control method for an adsorption purification system. The adsorption purification system includes an adsorption device and a first chain bucket machine, the first chain bucket machine being located below the adsorption device. The adsorption device is equipped with a roller feeder. The control method includes: a first acquisition step, acquiring several sets of basic data information of the roller feeder, the basic data information including the rotational speed, opening height, and discharge parameters of the roller feeder, the discharge parameters being used to characterize the discharge speed of the roller feeder; and a first calculation step, substituting each set of the basic data information into Formula 1 for regression solving to obtain the set of parameters {a} of Formula 1. 20 a 02 a 11 a 10 a 01 a 00 Formula 1: f(x,y)=a20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The second acquisition step is based on the set parameter {a} 20 a 02 a 11 a 10 a 01 a 00 The set function relationship between the rotational speed, the opening height, and the discharge parameters is obtained using Formula 1; the first control step is to control the roller feeder according to the set function relationship.

[0007] By adopting the above-mentioned scheme, the control method involved in this invention can obtain the set function relationship between the rotational speed, opening height and discharge parameters of the roller feeder by regression fitting of the basic data information of the roller feeder. In specific implementation, the set function relationship can be used to more accurately control any one of the rotational speed, opening height and discharge parameters of the roller feeder, so as to facilitate the balanced control of the adsorbent in the adsorption purification system, thereby improving the utilization efficiency of the adsorbent and the purification effect of the flue gas.

[0008] Optionally, in the first calculation step, the rotational speed is f(x,y), the discharge parameter is x, and the opening height is y.

[0009] Optionally, there are multiple roller feeders, and each roller feeder is arranged sequentially along the running direction of the first chain bucket machine. The first chain bucket machine includes several chain buckets, and a measuring component is arranged downstream of each roller feeder to measure the real-time volume of the adsorbent in the chain bucket after passing through the corresponding measuring component. The discharge parameter is any one of the discharge volume, discharge weight, and discharge flow rate of the corresponding roller feeder in the chain bucket.

[0010] Optionally, the first acquisition step includes: a first acquisition sub-step, acquiring a first real-time volume measured by the measuring component downstream of the set roller feeder, and a second real-time volume measured by the measuring component upstream of the set roller feeder at the same time; and a first calculation sub-step, taking the difference between the first real-time volume and the second real-time volume to obtain the discharge volume of the set roller feeder.

[0011] Optionally, the first acquisition step includes: a second acquisition sub-step, acquiring a third real-time volume of the set chain bucket measured by the measuring component downstream of the set roller feeder, and a fourth real-time volume of the set chain bucket measured by the measuring component upstream of the set roller feeder; and a second calculation sub-step, taking the difference between the third real-time volume and the fourth real-time volume to obtain the discharge volume of the set roller feeder.

[0012] Optionally, the first chain bucket machine includes a plurality of chain buckets, and the control method further includes: a third acquisition step, acquiring the real-time loading volume of the adsorbent in the chain bucket after passing through the adsorption device, as well as the actual operating speed of the first chain bucket machine and the full-load volume of the chain bucket; a second calculation step, calculating the theoretical operating speed of the first chain bucket machine based on the real-time loading volume, the actual operating speed, and the full-load volume; and a second control step, controlling the first chain bucket machine to operate at the theoretical operating speed, such that the real-time loading volume is equal to the full-load volume.

[0013] Optionally, the second calculation step specifically involves: calculating the theoretical operating speed using the following formula two; Formula two: Among them, v 理论 v is the theoretical operating speed. 实际 V represents the actual operating speed. 实时 V represents the real-time loading volume. 满载 The full-load volume is [the volume of the load].

[0014] Optionally, the second calculation step specifically involves: calculating the theoretical operating speed using the following formula three; Formula three: Among them, v 理论 v is the theoretical operating speed. 实际 The actual operating speed is given by d, where d is the dimension of the chain bucket in the operating direction of the first chain bucket machine, and V is the actual operating speed. 实时j V represents the real-time loading volume of each bucket actually passing through within the actual operating distance of the first bucket elevator per unit time. 满载 The full-load volume is [the volume of the load].

[0015] This invention also provides a control system for an adsorption purification system, the adsorption purification system including an adsorption device and a first chain bucket machine, the first chain bucket machine being located below the adsorption device, and the adsorption device being equipped with a roller feeder; the control system includes: a first acquisition module, used to acquire several sets of basic data information of the roller feeder, the basic data information including the rotational speed, opening height, and discharge parameters of the roller feeder, the discharge parameters being used to characterize the discharge speed of the roller feeder; a first calculation module, signal-connected to the first acquisition module, used to receive the basic data information, and used to substitute each set of the basic data information into Formula 1 for regression solving, to obtain the set of parameters {a} of Formula 1. 20 a 02 a 11 a 10 a 01 a 00 Formula 1: f(x,y)=a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The second acquisition module, signal-connected to the first calculation module, is used to receive the set of parameters {a}. 20 a 02 a 11 a 10 a 01 a 00}, and used according to the set of parameters {a 20 a 02 a 11 a 10 a 01 a 00 The first control module, which is signal-connected to the second acquisition module, obtains the set function relationship between the rotational speed, the opening height, and the discharge parameters according to the formula; the second acquisition module is used to obtain the set function relationship and control the roller feeder according to the set function relationship.

[0016] Optionally, there are multiple roller feeders, and each roller feeder is arranged sequentially along the running direction of the first chain bucket machine. The first chain bucket machine includes several chain buckets, and a measuring component is configured downstream of each roller feeder to measure the real-time volume of the adsorbent in the chain bucket after passing through the corresponding measuring component. The first acquisition module includes the measuring component. The discharge parameter is any one of the discharge volume, discharge weight, and discharge flow rate of the corresponding roller feeder in the chain bucket.

[0017] Optionally, the first acquisition module includes: a first acquisition submodule, configured to acquire a first real-time volume measured by the measuring component downstream of the set roller feeder, and a second real-time volume measured by the measuring component upstream of the set roller feeder at the same time; and a first calculation submodule, signal-connected to the first acquisition submodule, configured to receive the first real-time volume and the second real-time volume, and to take the difference between the first real-time volume and the second real-time volume to obtain the discharge volume of the set roller feeder.

[0018] Optionally, the first acquisition module includes: a second acquisition submodule, configured to acquire a third real-time volume measured by the measuring component downstream of the set chain bucket and a fourth real-time volume measured by the measuring component upstream of the set chain bucket; and a second calculation submodule, signal-connected to the second acquisition submodule, configured to receive the third real-time volume and the fourth real-time volume, and to take the difference between the third real-time volume and the fourth real-time volume to obtain the discharge volume of the set roller feeder.

[0019] Optionally, the first chain bucket machine includes several chain buckets, and a measuring component is provided downstream of the adsorption device. The measuring component is used to measure the real-time volume of the adsorbent in the chain bucket after passing through the measuring component. The control system further includes: a third acquisition module, used to acquire the real-time loading volume of the adsorbent in the chain bucket after passing through the adsorption device, as well as the actual operating speed of the first chain bucket machine and the full-load volume of the chain bucket; a second calculation module, signal-connected to the third acquisition module, used to acquire the real-time loading volume, the actual operating speed, and the full-load volume, and used to calculate the theoretical operating speed of the first chain bucket machine based on the real-time loading volume, the actual operating speed, and the full-load volume; and a second control module, signal-connected to the second calculation module, used to receive the theoretical operating speed, and used to control the first chain bucket machine to operate at the theoretical operating speed, such that the real-time loading volume is equal to the full-load volume.

[0020] Optionally, the first control module and the second control module are integrated into the same controller. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a typical adsorption purification system;

[0022] Figure 2 A schematic diagram of a specific embodiment of the control method for the adsorption purification system provided by the present invention;

[0023] Figure 3This is a schematic diagram of a specific implementation of the first acquisition step;

[0024] Figure 4 This is a schematic diagram of another specific implementation of the first acquisition step;

[0025] Figure 5 A schematic diagram of another specific embodiment of the control method for the adsorption purification system provided by the present invention;

[0026] Figure 6 A schematic diagram of a specific embodiment of the control system of the adsorption purification system provided by the present invention;

[0027] Figure 7 This is a structural diagram of the first acquisition module, the first calculation module, and the chain bucket.

[0028] Figure 8 This is a schematic diagram of another specific embodiment of the control system of the adsorption purification system provided by the present invention.

[0029] Figure 1 The annotations in the accompanying drawings are explained as follows:

[0030] 01 Adsorption unit, 011 Second buffer chamber, 02 Desorption device, 021 First buffer chamber, 03 Adsorbent chamber, 04 First chain bucket machine, 05 Second chain bucket machine.

[0031] Figures 6-8 The annotations in the accompanying drawings are explained as follows:

[0032] 100 chain buckets;

[0033] 1 First acquisition module, 1a Measurement component, 1b Signal acquisition component, 11 First acquisition submodule, 12 First calculation submodule, 13 Second acquisition submodule, 14 Second calculation submodule;

[0034] 2. First Calculation Module;

[0035] 3. Second acquisition module;

[0036] 4. First control module;

[0037] 5. Third Acquisition Module;

[0038] 6. Second Calculation Module;

[0039] 7. Second control module. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] In embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0042] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "joining" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0043] The directional terms mentioned in the embodiments of this invention, such as "upper" and "lower," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this invention. In addition, unless otherwise stated in this application, "several" or "multiple" as used in this application refer to two or more; and when "several" or "multiple" is used to indicate the quantity of several components, it does not indicate the quantitative relationship between these components.

[0044] In the description of embodiments of the present invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0045] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0046] Example 1

[0047] Please refer to Figures 2-5 ,Figure 2 This is a schematic diagram of a specific embodiment of the control method for the adsorption purification system provided by the present invention. Figure 3 This is a structural diagram illustrating one specific implementation of the first acquisition step. Figure 4 This is a schematic diagram illustrating another specific implementation of the first acquisition step. Figure 5 This is a schematic diagram of another specific embodiment of the control method for the adsorption purification system provided by the present invention.

[0048] Adsorption purification systems are a commonly used type of flue gas treatment system. By configuring appropriate types of adsorbents, they can effectively adsorb and remove pollutants such as dust particles and harmful gases from flue gas. Furthermore, through the transfer and desorption of adsorbents, the adsorbents can be recycled, which can significantly reduce the cost of flue gas treatment.

[0049] The specific structure of the adsorption purification system can be found in the description in the background section and related prior art. The following description only focuses on some of the devices involved in the embodiments of the present invention.

[0050] The adsorption purification system comprises an adsorption device formed by combining several adsorption units; in some embodiments, the adsorption device is also referred to as an adsorption tower. The adsorption device is filled with adsorbent for absorbing pollutants in flue gas. The adsorbent can specifically be activated carbon, natural organic adsorbents, natural inorganic adsorbents, and some synthetic adsorbents. The adsorption device is equipped with a roller feeder, and a first chain bucket machine is also configured below the adsorption device. The first chain bucket machine is equipped with several chain buckets. The adsorbent in the adsorption device can be conveyed to the chain buckets of the first chain bucket machine via the roller feeder, and can also be conveyed to downstream devices via the first chain bucket machine to complete the transfer of the adsorbent.

[0051] The discharge speed of the roller feeder determines the circulation speed of the adsorbent in the adsorption device, which is an important parameter of the adsorption purification system. How to accurately control this parameter has always been a key focus for those skilled in the art.

[0052] The present invention aims to provide a more precise method for controlling the discharge speed of a roller feeder, thereby facilitating the balance control of the adsorbent in the adsorption purification system. Furthermore, this control method can not only control the discharge speed but also the opening height and rotational speed of the roller feeder, as well as the operating speed of the first chain bucket machine.

[0053] like Figure 1 As shown, the control method of the adsorption purification system involved in this invention includes at least the following first acquisition step S1, first calculation step S2, second acquisition step S3, and first control step S4. Each step will be described in detail below.

[0054] The first acquisition step S1 specifically involves acquiring basic data information for several sets of roller feeders.

[0055] The aforementioned sets of basic data information are all related to the same roller feeder. Correspondingly, the subsequent control strategies are also designed for this roller feeder. When different roller feeders need to be controlled, the basic data information of each roller feeder can be obtained separately, and then the following steps can be executed separately to obtain the control strategies for each roller feeder. Here, this embodiment of the invention does not limit the number of sets of basic data information. In practice, those skilled in the art can set the number according to actual needs, as long as it meets the requirements of use. It is understood that the more sets of basic data information there are, the higher the accuracy of the regression solution performed in the second calculation step S2 below.

[0056] The aforementioned basic data includes the rotational speed, opening height, and discharge parameters of the roller feeder. The discharge parameters are a parameter that can characterize the discharge speed of the roller feeder.

[0057] The first calculation step S2 specifically involves substituting the basic data information of each group into Formula 1 below to perform regression solving, thereby obtaining the set of parameters {a} in Formula 1. 20 a 02 a 11 a 10 a 01 a 00 Formula 1 is specifically: f(x,y)=a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 .

[0058] The second step, S3, specifically involves: based on the set parameter set {a 20 a 02 a 11 a 10 a 01 a 00 The relationship between rotational speed, opening height, and discharge parameters is obtained using Formula 1. This relationship is a quadratic function in two variables concerning rotational speed, opening height, and discharge parameters.

[0059] The first control step S4 is specifically: controlling the roller feeder according to the set function relationship.

[0060] By adopting the above scheme, the control method involved in this embodiment can obtain the set function relationship between the rotation speed, opening height and discharge parameters of the roller feeder by regression fitting of the basic data information of the roller feeder. In specific implementation, the set function relationship can be used to more accurately control any one of the rotation speed, opening height and discharge parameters of the roller feeder, so as to facilitate the balanced control of the adsorbent in the adsorption purification system, thereby improving the utilization efficiency of the adsorbent and the purification effect of the flue gas.

[0061] In actual production, the opening height of the roller feeder is generally not adjusted. That is to say, the opening height can be a fixed value. Then, the rotation speed of the roller feeder can be adjusted according to the target discharge parameters required for production and the above-mentioned set function relationship in order to achieve the target discharge parameters required for production.

[0062] Of course, if the volume of the adsorbent (such as activated carbon) changes and it is desired to adjust the opening height, the opening height can be calculated using the above-mentioned set function relationship based on the given rotation speed and discharge parameters. Then, the final opening height adjustment value can be obtained by combining the adjustable range threshold of the opening height.

[0063] In this embodiment of the invention, the correspondence between f(x,y), x, y and rotational speed, discharge parameters and opening height in Formula 1 is not limited. In practice, those skilled in the art can make adjustments as needed.

[0064] For example, the rotational speed can be mapped to f(x,y), the discharge parameter to x, and the opening height to y; or, the rotational speed can be mapped to f(x,y), the opening height to x, and the discharge parameter to y; or, the opening height can be mapped to f(x,y), the rotational speed to x, and the discharge parameter to y; or, the opening height can be mapped to f(x,y), the discharge parameter to x, and the rotational speed to y; or, the discharge parameter can be mapped to f(x,y), the opening height to x, and the rotational speed to y; or, the discharge parameter can be mapped to f(x,y), the rotational speed to x, and the opening height to y.

[0065] Taking the rotational speed as f(x,y), the discharge parameter as x, and the opening height as y as an example, the above-mentioned functional relationship can be: n = a 20 p 2 +a 02 h 2 +a 11 ph+a 10 p+a 01 h+a 00Where n represents the rotational speed of the roller feeder, p represents the discharge parameters, and h represents the opening height of the roller feeder.

[0066] The number of roller feeders can be multiple. Accordingly, in this embodiment of the invention, a control strategy can be formulated for each roller feeder based on the steps described above. Each roller feeder can be arranged sequentially along the running direction of the first chain bucket conveyor, and a measuring component is configured downstream of each roller feeder to measure the real-time volume of the adsorbent in the chain bucket below the corresponding measuring component. The type of measuring component is not limited here; in practice, those skilled in the art can select one according to actual needs, as long as it can provide feedback on the real-time volume of the adsorbent in each chain bucket.

[0067] Assume there are n roller feeders, and correspondingly, n measuring components. These n measuring components can be arranged sequentially along the running direction of the first chain bucket conveyor. For ease of description, the measuring components can be numbered sequentially from upstream to downstream, and the numbers of each measuring component are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 ... # 2 # ... # ...n # Correspondingly, the real-time volumes measured by each measuring component are denoted as V1, V2, ..., V... i V n .

[0068] The above discharge parameters can be used to determine the discharge volume V of the corresponding roller feeder in the chain bucket. 排料 Discharge weight W 排料 Discharge flow rate F 排料 Any of them. Where W 排料 =V 排料 ×ρ, where ρ is the density of the adsorbent; F 排料 =W 排料 / △t, where △t is the time it takes for the chain bucket to travel from the upstream measuring component to the adjacent downstream measuring component.

[0069] Discharge volume V 排料 Discharge weight W 排料 Discharge flow rate F 排料 Any of the values ​​in V can characterize the discharge speed. The following embodiments of this application mainly use the discharge volume V. 排料 Let's take an example to illustrate.

[0070] In the first option, such as Figure 3 As shown, the first acquisition step S1 may include: a first acquisition sub-step S11, acquiring the first real-time volume V measured by the downstream measuring component of the set roller feeder. i t And at the same time, the second real-time volume measured by the upstream measuring component of the set roller feeder. The first calculation sub-step involves calculating the first real-time volume V. i t Second real-time volume Take the difference to obtain the discharge volume V of the set roller feeder. 排料 .

[0071] It should be noted that V i t Specifically, it refers to the number i # The measuring component measures the real-time volume of the adsorbent in the chain bucket below it at time t. Specifically, it refers to the number (i-1) # The real-time volume of the adsorbent in the chain hopper below it, measured by the measuring component at time t, is numbered i. # The measuring component is numbered (i-1). # The roller feeder between the measuring components is the aforementioned set roller feeder. The set roller feeder mentioned here can be any roller feeder other than the upstream roller feeder.

[0072] It is understandable that, during stable operation of the adsorption purification system, the real-time volume of adsorbent within each chain bucket is the same when different chain buckets pass under the same measuring component. Therefore, It can be represented that at time t, at the i-th time... # The chain bucket below the measuring component is controlled by the (i-1)th component at time t-Δt. # The real-time volume measured by the measuring component is used to set the discharge volume of the roller feeder.

[0073] In the second option, such as Figure 4 As shown, the first acquisition step S1 may include: a second acquisition sub-step S11', acquiring the third real-time volume V of the set chain bucket measured by the downstream measuring component of the set roller feeder. i t The fourth real-time volume of the set chain bucket is measured by the upstream measuring component of the set roller feeder. The second calculation sub-step S12' will calculate the third real-time volume V. i t and the fourth real-time volume Take the difference to obtain the discharge volume V of the set roller feeder. 排料 Specifically,

[0074] It should be noted that, To define the chain bucket at time t-Δt, the chain bucket is numbered (i-1). # The real-time volume V measured by the measuring component it To set the chain bucket at time t to be numbered i # The real-time volume measured by the measuring component, numbered i # The measuring component is numbered (i-1). # The roller feeder between the measuring components is the aforementioned set roller feeder. The set roller feeder mentioned here can be any roller feeder other than the upstream roller feeder.

[0075] Unlike the first scheme mentioned above, this scheme calculates the real-time volume of the same bucket at different times. This calculation method takes into account the production fluctuations that may exist in actual production, and the calculation results are more accurate.

[0076] Furthermore, the roller feeders targeted in the first and second schemes mentioned above do not include the upstream roller feeder. For the upstream roller feeder, its discharge volume within the chain bucket is V. 排料 =V1, i.e., number 1 # The measuring component measures the real-time volume of the adsorbent in the chain bucket below it.

[0077] In some alternative implementations, such as Figure 5 As shown, the control method provided by the present invention may further include: a third acquisition step S5, acquiring the real-time loading volume V of the adsorbent in the chain bucket of the adsorption device. 实时 And the actual operating speed v of the first chain bucket machine 实际 and the full load volume V of the chain bucket 满载 The second calculation step, S6, is based on the real-time loading volume V. 实时 Actual operating speed v 实际 and full load volume V 满载 Calculate the theoretical operating speed v of the first chain bucket machine 理论 The second control step, S7, controls the first chain bucket machine to operate at its theoretical speed v. 理论 The operation enables the real-time loading volume V. 实时 Equal to full-load volume V 满载 .

[0078] In actual operation, the real-time loading volume V of the adsorbent in the chain hopper after passing through the adsorption device is... 实时 It may be smaller than the full-load volume V 满载 In this case, the loading capacity of the first chain bucket machine is not fully utilized. By employing the third acquisition step S5, the second calculation step S6, and the second control step S7 described above, the real-time loading volume V can be increased. 实时 Equal to full-load volume V 满载This allows for full utilization of the loading capacity of the first chain bucket machine, and controlling the operating speed of the first chain bucket machine also helps reduce system energy consumption.

[0079] Real-time loading volume V 实时 The measurement can be obtained from the aforementioned nth... # The measurement component is complete. Alternatively, in this embodiment, a separate measurement component can be installed downstream of the adsorption device to detect the real-time loading volume V. 实时 In other words, it is also feasible to configure only one measuring component.

[0080] Compared with the aforementioned discharge volume V 排料 Similar to the calculation, the embodiments of the present invention apply to the theoretical operating speed v 理论 The calculation scheme can also include two types, as detailed below.

[0081] In the first scheme, the second calculation step S6 can specifically be: calculating the theoretical running speed using the following formula two; Formula two:

[0082] Among them, v 实际 The actual operating speed represents the actual distance traveled by the first chain bucket machine per unit time. The size of the chain bucket in the direction of travel of the first chain bucket machine is determined, and in this embodiment of the invention, it is set as d. The number of chain buckets actually passing through this actual operating distance is v. 实际 / d; and, when the adsorption purification system is running stably, the real-time loading volume V of different chain buckets after passing through the adsorption device. 实时 They should be the same. Therefore, the actual amount of adsorbent loaded by the first bucket elevator after passing through the adsorption device per unit time is v. 实际 ×V 实时 / d.

[0083] Similarly, the theoretical loading capacity of the adsorbent after the first chain bucket elevator passes through the adsorption device per unit time is v. 理论 ×V 满载 / d, let This leads to Formula 2 mentioned above.

[0084] In the second scheme, the second calculation step S6 can specifically be: calculating the theoretical running speed using the following formula three; Formula three:

[0085] Among them, v 实际 / d represents the number of chain buckets actually passing through the actual operating distance of the first chain bucket machine per unit time, V 实时j The above-mentioned actual real-time loading volumes of the bucket chains are given. The actual amount of adsorbent loaded by the first bucket chain after passing the adsorption device per unit time is...

[0086] The theoretical load of adsorbent on the first bucket elevator after passing through the adsorption device per unit time is v. 理论 ×V 满载 / d, let This leads to Formula 3 above.

[0087] Example 2

[0088] Please refer to Figures 6-8 , Figure 6 This is a schematic diagram of a specific embodiment of the control system of the adsorption purification system provided by the present invention. Figure 7 This is a schematic diagram of the structure of the first acquisition module, the first calculation module, and the chain bucket. Figure 8 This is a schematic diagram of another specific embodiment of the control system of the adsorption purification system provided by the present invention.

[0089] Based on the control method of the adsorption purification system involved in Embodiment 1, this embodiment of the invention also provides a control system for the adsorption purification system. The structure and other aspects of the adsorption purification system adapted to this control system can be found in Embodiment 1, and will not be described again here.

[0090] like Figure 6 As shown, the control system includes: a first acquisition module 1, used to acquire several sets of basic data information of the roller feeder, including the rotational speed, opening height, and discharge parameters of the roller feeder, whereby the discharge parameters characterize the discharge speed of the roller feeder; and a first calculation module 2, signal-connected to the first acquisition module 1, used to receive the basic data information and to substitute each set of basic data information into Formula 1 for regression solving to obtain the set of parameters {a} in Formula 1. 20 a 02 a 11 a 10 a 01 a 00 Formula 1: f(x,y)=a 20 x 2 +a 02 y 2 +a 11 xy+a 10 x+a 01 y+a 00 The second acquisition module 3 is signal-connected to the first calculation module 2 and is used to receive the set parameter set {a}. 20 a 02 a 11 a 10 a 01 a 00}, and is used based on the set parameter set {a20 a 02 a 11 a 10 a 01 a 00 The first control module 4 and the second acquisition module 3 are connected by signals to obtain the set function relationship between the rotation speed, opening height and discharge parameters, and to control the roller feeder according to the set function relationship.

[0091] Similar to that described in Example 1, the control system involved in this example obtains a set function relationship between the rotational speed, opening height, and discharge parameters of the roller feeder by regression fitting of the basic data information of the roller feeder. In specific implementation, the set function relationship can be used to more accurately control any one of the rotational speed, opening height, and discharge parameters of the roller feeder, so as to facilitate the balanced control of the adsorbent in the adsorption purification system, thereby improving the utilization efficiency of the adsorbent and the purification effect of the flue gas.

[0092] For the control methods of rotation speed, opening height, and discharge parameters, please refer to Example 1.

[0093] There can be multiple roller feeders, arranged sequentially along the running direction of the first chain bucket conveyor. Figure 7 The first bucket chain feeder includes several bucket chains 100. Each roller feeder has a measuring component 1a downstream for measuring the real-time volume of adsorbent within the bucket chain 100 below the corresponding measuring component 1a. The first acquisition module 1 includes the measuring component 1a. Data collected by each measuring component 1a can be aggregated into a signal acquisition component 1b. The first acquisition module 1 may also include the signal acquisition component 1b. In some embodiments, the signal acquisition component 1b may not be present, meaning each measuring component 1a can be directly connected to the first calculation module 2.

[0094] The first acquisition module 1 may also include a speed sensor for acquiring the rotational speed of the roller feeder. The opening height of the roller feeder can be a measured value, or a corresponding sensor can be configured to monitor and acquire the opening height in real time.

[0095] The discharge parameters can be the discharge volume V of the corresponding roller feeder within the chain bucket 100. 排料 Discharge weight W 排料 Discharge flow rate F 排料 The following explanation mainly uses the discharge volume as an example.

[0096] In some solutions, the first acquisition module 1 may include: a first acquisition submodule 11, used to acquire the first real-time volume V measured by the downstream measuring component 1a of the set roller feeder.i t And at the same time, the second real-time volume measured by the upstream measuring component 1a of the set roller feeder. The first calculation submodule 12 is signal-connected to the first acquisition submodule 11 and is used to receive the first real-time volume V. i t Second real-time volume And used to measure the first real-time volume V i t Second real-time volume Take the difference to obtain the discharge volume V of the set roller feeder. 排料 Specifically, the discharge volume of the roller feeder is set.

[0097] In other embodiments, the first acquisition module 1 may include a second acquisition submodule 13, used to acquire the third real-time volume V measured by the downstream measuring component 1a of the set chain bucket at the set roller feeder. i t The fourth real-time volume measured by the measuring component 1a upstream of the set chain bucket in the set roller feeder. The second calculation submodule 14 is signal-connected to the second acquisition submodule 13 and is used to receive the third real-time volume V. i t and the fourth real-time volume And used to convert the third real-time volume V i t and the fourth real-time volume Take the difference to obtain the discharge volume V of the set roller feeder. 排料 Specifically, the discharge volume of the roller feeder is set.

[0098] In some alternative implementations, such as Figure 8 As shown, the control system may further include: a third acquisition module 5, used to acquire the real-time loading volume V of the adsorbent in the chain bucket 100 of the adsorption device. 实时 And the actual operating speed v of the first chain bucket machine 实际 The full-load volume V of chain bucket 100 满载 The second calculation module 6 and the third acquisition module 5 are connected by signals to acquire the real-time loading volume V. 实时 Actual operating speed v 实际 and full load volume V 满载 And used to determine the real-time loading volume V 实时 Actual operating speed v 实际 and full load volume V 满载 Calculate the theoretical operating speed v of the first chain bucket machine 理论The second control module 7 is signal-connected to the second calculation module 6 and is used to receive the theoretical operating speed v. 理论 And used to control the first chain bucket machine to its theoretical operating speed v 理论 The operation enables the real-time loading volume V. 实时 Equal to full-load volume V 满载 .

[0099] In this embodiment, the real-time loading volume V can be obtained based on the most downstream measuring component 1a among the aforementioned measuring components 1a. 实时 Alternatively, a measuring component 1a can be configured only downstream of the adsorption device, and the real-time loading volume V of the adsorbent in the chain hopper 100 can be measured by the measuring component 1a. 实时 This also reduces the number of measuring components 1a used, thus simplifying the structure of the equipment.

[0100] In this embodiment, the theoretical operating speed v of the first chain bucket machine 理论 The calculation method can be found in Example 1, and will not be repeated here.

[0101] In practical use, the first control module 4 and the second control module 7 can be integrated into the same controller to improve the integration of the device. Of course, the first control module 4 and the second control module 7 can also be set separately to avoid mutual interference between the two control modules.

[0102] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control method of a sorption purification system including an adsorption device and a first chain bucket machine, the first chain bucket machine being located below the adsorption device, the adsorption device being configured with a roller feeder, characterized in that, The control method comprises: A first acquisition step of acquiring a plurality of sets of basic data information of the roller feeder, the basic data information comprising a rotational speed, an opening height and a discharge parameter of the roller feeder, the discharge parameter being used to represent a discharge speed of the roller feeder; A first calculation step, substituting each set of the basic data information into Formula One to regressively solve to obtain a set of setting parameters of Formula One , , , , , } Formula One: ; A second obtaining step, according to the set parameter set , , , , , } and the formula obtains the set function relationship between the rotating speed, the opening height and the discharge parameter; A first control step of controlling the roller feeder according to the set function relationship; The control method further comprises: A third acquisition step of acquiring a real-time loading volume of the adsorbent in the chain bucket passing through the adsorption device, an actual running speed of the first chain bucket machine and a full loading volume of the chain bucket; A second calculation step of calculating a theoretical running speed of the first chain bucket machine according to the real-time loading volume, the actual running speed and the full loading volume; A second control step of controlling the first chain bucket machine to run at the theoretical running speed, so that the real-time loading volume is equal to the full loading volume; The second calculation step specifically comprises calculating the theoretical running speed by the following formula three: Equation Three: ; wherein, is the theoretical running speed, is the actual running speed, d is the dimension of the chain bucket in the running direction of the first chain bucket machine, is the real-time loading volume of each actual passing chain bucket in the actual running distance of the first chain bucket machine per unit time, is the full load volume.

2. The control method of the adsorption purification system according to claim 1, characterized in that, In the first calculation step, the rotational speed is , the discharge parameter is , and the opening height is .

3. The method of claim 1, wherein the method further comprises: The number of the roller feeders is multiple, each roller feeder is sequentially arranged along a running direction of the first chain bucket machine, the first chain bucket machine comprises a plurality of chain buckets, and a measuring component is arranged downstream of each roller feeder, used to measure a real-time volume of the adsorbent in the chain bucket passing through the corresponding measuring component; The discharge parameter is any one of a discharge volume, a discharge weight and a discharge flow of the corresponding roller feeder in the chain bucket.

4. The method of claim 3, wherein the method further comprises: The first acquisition step comprises: A first acquisition sub-step of acquiring a first real-time volume measured by the measuring component downstream of a set roller feeder and a second real-time volume measured by the measuring component upstream of the set roller feeder at the same time; A first calculation sub-step of taking a difference between the first real-time volume and the second real-time volume to acquire the discharge volume of the set roller feeder.

5. The method of claim 3, wherein the method further comprises: The first acquisition step comprises: A second acquisition sub-step of acquiring a third real-time volume measured by the measuring component downstream of a set roller feeder for a set chain bucket and a fourth real-time volume measured by the measuring component upstream of the set roller feeder for the set chain bucket; A second calculation sub-step of taking a difference between the third real-time volume and the fourth real-time volume to acquire the discharge volume of the set roller feeder.

6. A control system of a sorption purification system comprising a sorption device and a first chain bucket machine, the first chain bucket machine being located below the sorption device, the sorption device being configured with a roller feeder, characterized in that, The control system comprises: A first acquisition module for acquiring a plurality of sets of basic data information of the roller feeder, the basic data information comprising a rotational speed, an opening height and a discharge parameter of the roller feeder, the discharge parameter being used to represent a discharge speed of the roller feeder; A first calculation module, which is in signal connection with the first acquisition module, is configured to receive the basic data information and to regress each group of the basic data information into Formula One to obtain a set of parameters of Formula One , , , , , } Equation One: ; A second obtaining module, which is connected with the first calculating module and is configured to receive the set parameter set , , , , , } and is configured to obtain a set function relationship between the rotation speed, the opening height and the discharge parameter according to the set parameter set , , , , , } and the formula. A first control module, in signal connection with the second acquisition module, for acquiring the set function relationship and for controlling the roller feeder according to the set function relationship; The first chain bucket machine comprises a plurality of chain buckets, and the control system further comprises: A third acquisition module for acquiring a real-time loading volume of the adsorbent in the chain bucket passing through the adsorption device, an actual running speed of the first chain bucket machine and a full loading volume of the chain bucket; A second calculation module, which is connected with the third acquisition module, is configured to acquire the real-time loading volume, the actual running speed and the full loading volume, and to calculate the theoretical running speed of the first chain bucket machine according to the real-time loading volume, the actual running speed and the full loading volume; A second control module, which is connected with the second calculation module, is configured to receive the theoretical running speed, and to control the first chain bucket machine to run at the theoretical running speed, so that the real-time loading volume is equal to the full loading volume; The second calculation module specifically calculates the theoretical running speed by the following Formula Three: Equation Three: ; wherein, is the theoretical running speed, is the actual running speed, d is the dimension of the chain bucket in the running direction of the first chain bucket machine, is the real-time loading volume of each actual passing chain bucket in the actual running distance of the first chain bucket machine per unit time, is the full load volume.

7. The control system of claim 6, wherein, The number of the roller feeders is multiple, and each roller feeder is sequentially arranged along the running direction of the first chain bucket machine. The first chain bucket machine includes a plurality of chain buckets. Each roller feeder is configured with a measuring component downstream thereof, which is configured to measure the real-time volume of the adsorbent in the chain bucket passing through the corresponding measuring component. The first acquisition module includes the measuring components. The discharge parameter is any one of a discharge volume, a discharge weight and a discharge flow of the corresponding roller feeder in the chain bucket.

8. The control system for the adsorptive purification system of claim 7, wherein, The first acquisition module includes: A first acquisition submodule, which is configured to acquire a first real-time volume measured by the measuring component downstream of a set roller feeder, and a second real-time volume measured by the measuring component upstream of the set roller feeder at the same time; A first calculation submodule, which is connected with the first acquisition submodule, is configured to receive the first real-time volume and the second real-time volume, and to acquire the discharge volume of the set roller feeder by taking a difference between the first real-time volume and the second real-time volume.

9. The control system for the adsorptive purification system of claim 7, wherein, The first acquisition module includes: A second acquisition submodule, which is configured to acquire a third real-time volume measured by the measuring component downstream of a set roller feeder, and a fourth real-time volume measured by the measuring component upstream of the set roller feeder; A second calculation submodule, which is connected with the second acquisition submodule, is configured to receive the third real-time volume and the fourth real-time volume, and to acquire the discharge volume of the set roller feeder by taking a difference between the third real-time volume and the fourth real-time volume.

10. The control system of the adsorptive cleaning system according to any one of claims 6-9, characterized in that, The first control module and the second control module are integrated in the same controller.

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