CN116984114B - Digital-to-analog cyclone control method and system - Google Patents
Digital-to-analog cyclone control method and system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 202
- 230000007246 mechanism Effects 0.000 claims abstract description 77
- 230000001276 controlling effect Effects 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims description 18
- 230000008844 regulatory mechanism Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 4
- 238000004886 process control Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002956 ash Substances 0.000 description 30
- 239000010883 coal ash Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000013507 mapping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
- B03B5/34—Applications of hydrocyclones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The embodiment of the application discloses a method and a system for controlling a digital-to-analog cyclone. The method comprises the following steps: setting a plurality of adjusting mechanisms on the digital-to-analog cyclone, firstly acquiring coal quality data detected by coal quality detection equipment in real time and a preset adjusting and controlling target, and determining a target adjusting and controlling algorithm corresponding to the preset adjusting and controlling target; then determining the respective corresponding regulating value of each regulating mechanism according to the coal quality data and the target regulating algorithm; and for any adjusting mechanism, adjusting the opening of the adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to control the digital-to-analog cyclone. Based on this, the scheme of this application can be according to coal quality data and predetermine the regulation and control target, under the online condition, just can be automatically to each adjustment mechanism control to realize this predetermineeing the regulation and control target, avoided stopping production debugging or the condition emergence that equipment was changed.
Description
Technical Field
The embodiment of the application relates to the technical field of automatic control, in particular to a method and a system for controlling a digital-to-analog cyclone.
Background
Along with the progress of industrial automation technology, coal dressing equipment is also continuously developed towards the direction of automatic control, and currently, a pressureless three-product heavy medium cyclone is a coal dressing equipment which is more in use, the traditional cyclone is fixed in structure and cannot control separation conditions from outside, and is limited to control of the combined medium density, and the combined medium density is controlled in a qualified zone by adding medium or water to a system.
When the raw coal quality changes or the indexes of the products are unqualified, the traditional cyclone is usually required to be subjected to production stopping debugging and equipment replacement for the two reasons, so that the production time is wasted, and a certain economic loss is caused.
Disclosure of Invention
The embodiment of the application provides a method and a system for controlling a digital-to-analog cyclone, so as to avoid the occurrence of the conditions of production stopping debugging and equipment replacement.
In a first aspect, embodiments of the present application provide a method for controlling a digital-to-analog cyclone, where the digital-to-analog cyclone is provided with a plurality of adjustment mechanisms, the method including:
acquiring coal quality data and a preset regulation and control target detected by coal quality detection equipment in real time, and determining a target regulation and control algorithm corresponding to the preset regulation and control target;
determining a respective corresponding adjusting value of each adjusting mechanism according to the coal quality data and the target adjusting algorithm;
and for any adjusting mechanism, adjusting the opening of the adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to control the digital-to-analog cyclone.
In a second aspect, embodiments of the present application further provide a digital-to-analog cyclone control system, where the system includes a digital-to-analog cyclone, a digital-to-analog cyclone controller, and a plurality of coal quality data measurement assemblies;
the digital-to-analog cyclone is provided with a plurality of adjusting mechanisms, and each adjusting mechanism is a control point;
the coal quality data measuring components are respectively arranged at a raw coal feeding position, a clean coal medium-removing and dewatering grading position, a medium coal medium-removing and dewatering grading position and a gangue medium-removing and dewatering grading position;
the plurality of coal quality data measuring assemblies are connected with the digital-to-digital cyclone controller and are used for sending measured coal quality data to the digital-to-digital cyclone controller for connection;
the digital-to-analog cyclone controllers are all connected with the control point and are used for executing the digital-to-analog cyclone control method provided by any embodiment of the application.
According to the technical scheme, a plurality of adjusting mechanisms are arranged on a digital-to-analog cyclone, coal quality data detected by coal quality detection equipment in real time and a preset adjusting and controlling target are obtained, and a target adjusting and controlling algorithm corresponding to the preset adjusting and controlling target is determined; then determining the respective corresponding regulating value of each regulating mechanism according to the coal quality data and the target regulating algorithm; and for any adjusting mechanism, adjusting the opening of the adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to control the digital-to-analog cyclone. Based on this, the scheme of this application can be according to coal quality data and predetermine the regulation and control target, under the online condition, just can be automatically to each adjustment mechanism control to realize this predetermineeing the regulation and control target, avoided stopping production debugging or the condition emergence that equipment was changed.
Drawings
Fig. 1 is a schematic flow chart of a control method of a digital-to-analog cyclone according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a digital cyclone according to a first embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control system for a digital-to-analog cyclone according to a second embodiment of the present application.
Description of the embodiments
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings.
Example 1
Fig. 1 is a flow chart of a method for controlling a digital cyclone according to an embodiment of the present application, where the method is applicable to a scenario of controlling a digital cyclone. The method can be executed by a digital-to-analog cyclone control device, the device can be realized in a hardware and/or software mode, and can be generally integrated in a computer equivalent digital-to-analog cyclone control system with data operation capability, and the method specifically comprises the following steps:
and 101, acquiring coal quality data and a preset regulation and control target detected by coal quality detection equipment in real time, and determining a target regulation and control algorithm corresponding to the preset regulation and control target.
It should be noted that, in order to achieve the purpose of online automatic regulation and control of the logarithmic cyclone, the structure of the logarithmic cyclone is also upgraded in this embodiment, and the core upgrading point is that a plurality of regulating mechanisms are provided. Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of a digital cyclone according to a first embodiment of the present application, where the digital cyclone includes: the two-stage cyclone body (1) and the two-stage cyclone body (2) which are communicated through connecting pipes, and at least one of a joint orifice of the two-stage cyclone body (1), an overflow orifice (11) of the two-stage cyclone body and a raw coal feeding orifice (4), an overflow orifice (21) of the two-stage cyclone body (2) and a bottom orifice (22) are provided with an adjusting mechanism.
More preferably, the present embodiment may be provided with six adjusting mechanisms, and specifically may include a control opening adjusting mechanism 37 for controlling opening of the opening, a first overflow opening adjusting mechanism 38 for controlling opening of the first overflow, a second overflow opening adjusting mechanism 39 for controlling opening of the second overflow, a connecting pipe opening adjusting mechanism 41 for controlling opening of the connecting pipe, a control opening adjusting mechanism 40 for controlling opening of the bottom opening, and an adjusting mechanism for controlling opening of the filling opening.
Based on the structure, in the step, a coal quality data detection assembly is arranged at the raw coal feeding port and used for detecting first coal quality data corresponding to raw coal. Specifically, the coal quality data detection component can include ash content appearance, belt scale and sink-float appearance, and wherein, ash content appearance is used for detecting ash content, and belt scale is used for weighing, and sink-float appearance is used for detecting sink-float characteristic, and these three kinds of data constitute the required complete coal quality data of governing system.
In addition, the coal quality data detection assembly is arranged at the refined coal medium-removing and dewatering classification position, the middling coal medium-removing and dewatering classification position and the gangue medium-removing and dewatering classification position, so that the first coal quality sub-data, the second coal quality sub-data, the third coal quality sub-data and the fourth coal quality sub-data corresponding to raw coal, the second coal quality sub-data, the middling coal quality sub-data and the gangue medium-removing and dewatering classification position, which are detected by the 4 groups of coal quality data detection assembly, form the coal quality data in the step.
In the step, the coal quality data can be detected in real time, so that when the coal quality of raw coal changes, the adjusting mechanism can be adjusted more quickly, and the production result can be ensured to meet the preset adjusting and controlling target more quickly.
It should be noted that, the preset regulation and control targets in this step may be set to be multiple, for example, setting ensures that the clean coal ash meets the requirement, or ensures that the purity of the gangue meets the requirement, and different regulation effects can be generated by different setting targets.
When determining a target regulation algorithm corresponding to a preset regulation target, a regulation type corresponding to the preset regulation target can be determined, wherein the regulation type comprises at least one of the following types: raw coal regulation type, clean coal regulation type, middling regulation type and gangue regulation type; then screening the coal sub-data to be compared from the first coal sub-data, the second coal sub-data, the third coal sub-data and the fourth coal sub-data according to the regulation type; and determining a target regulation algorithm according to the coal quality sub-data to be compared and the preset regulation target.
Specifically, the preset regulation target indicates a regulation type, for example, regulation of clean coal ash, namely, regulation of clean coal ash, and regulation of middling coal ash, namely, regulation of middling coal ash.
In addition, when a target regulation algorithm is determined according to the coal sub-data to be compared and the preset regulation target, a regulation mechanism to be regulated and a regulation model corresponding to the regulation mechanism to be regulated can be determined according to the coal sub-data to be compared and the preset regulation target; and then determining a target regulation algorithm according to all regulation models.
It should be noted that the architecture of the regulation algorithm may be as follows:
wherein T represents a control point, and in this step, the control point includes the control points and process control points corresponding to the 6 adjustment mechanisms, specifically，/>For any combination of opening values of the respective control points of each adjusting mechanism +.>For each process control point combination, in one specific example:
wherein->To->Is the opening value of the control point.
In addition, in the above formula, the right side of the equation represents the index of raw coal and products (i.e., clean coal, middlings, and gangue):
where j=1, 2, 3, 4, 5 or 6,j represents a specific control point described below, for example, j is 1, i.e., the control point a described below 1 。
Wherein x represents ash data, m represents weight data,representing density composition, and subscripts i=0, 1, 2, and 3 respectively representing raw coal, clean coal, middlings, and gangue. K with subscript is a preset coefficient, the coefficient is related to coal quality, respective multi-level mapping relations can be set, and then the coefficient is updated according to specific detected raw coal quality data. The function u is a preset adjusting function, and the preset adjusting function can be obtained by performing function fitting according to statistical data. />To->The density components of raw coal, clean coal, middling coal and gangue are respectively.
The types of regulation that each control point can relate to are different, as follows:
control point A 1 The opening of the corresponding closing intervention opening corresponds to the following regulation type: changing the raw coal treatment capacity or adapting to the raw coal density composition change or adjusting the clean coal ash, and the corresponding adjusting model is that。
Control point A 2 Corresponding to the overflow opening degree of one section, namely the insertion depth of one section overflow pipe, the corresponding regulation and control type is: fine adjustment clean coal ash content, corresponding regulation model is:。
control point A 3 Corresponding to the two-section overflow opening, namely the two-section overflow pipe insertion depth, the corresponding regulation type is: fine-tuning the middle coal ash or gangue ash, the corresponding adjustment model is:。
control point A 4 Corresponding to the opening degree of the connecting pipe, namely the sectional area of the connecting pipe, the corresponding regulation type is to adjust the density composition of the middle coal or gangue, and the corresponding regulation model is as follows:。
control point A 5 Corresponding to the opening of the bottom flow port, namely the sectional area of the bottom flow port, the corresponding regulation type is to greatly regulate middling ash or gangue ash, and the corresponding regulation model is as follows:。
control point A 6 Corresponding to the opening of the medium supplementing port, and the corresponding regulation type is mediumThe density composition of the coal and gangue products is unreasonable, and the corresponding regulation model is as follows:。
wherein x represents ash content data, m represents weight data, ρ represents density composition, the subscript of the control point A and the first subscript of the double subscript are the values of j, and the second subscript of the double subscript and the subscripts of x, m and ρ are 0, 1, 2 and 3, which respectively represent raw coal, clean coal, middlings and gangue; k with subscript is a preset coefficient, and the function u is a preset adjustment function.
In a specific example, if the preset regulation target is that the clean coal ash meets the requirement, determining a to-be-regulated regulation mechanism and a regulation model related to the clean coal ash according to the mapping relation between the preset regulation model and the regulation target.
Wherein the control points 1 and 2 relate to the adjustment of the ash content of the clean coal, the corresponding adjusting mechanisms to be adjusted and controlled are the adjusting mechanisms corresponding to the control point 1 and the adjusting mechanisms corresponding to the control point 2, and the adjusting model is thatAnd (3) with。
The corresponding target regulation algorithm is the sum of the two regulation models.
In a specific example, when the preset regulation target is clean coal ash x j (9-10%), middling ash x z (50-55%) gangue ash x g (. Gtoreq.80%) assuming that the product detection value fed back by the ash meter of the coal quality data detection assembly is 9.5% of clean coal ash, 46% of middling coal ash and 82% of gangue ash, the middling coal ash can be judged to be smaller than the preset regulation and control target by the feedback value of the ash meter, and then the middling coal product ash needs to be regulated.
When detecting the ash content x of middling 2 The value of (2) is less than the preset target, x z Taking a preset target lower limit value, and detecting the ash content x of middlings 2 The value of (2) is greater than a preset target, x z Taking the upper limit value of a preset target, wherein the deviation value is x Z -x 2 。
When the deviation absolute value of the middling coal is more than or equal to 3%, the deviation value is determined to be large, and when the deviation absolute value of the middling coal is less than 3%, the deviation value is determined to be small. The corresponding regulation logic is that if the deviation value of the middling coal is small, only fine adjustment is needed, and if the deviation value of the middling coal is large, large adjustment and fine adjustment are needed to participate in adjustment together.
The deviation value of the ash feedback value of the current middling coal compared with the preset target is x z -x 2 The deviation value is large, =50% -46% =4%. From the above description of the control points, A 3 To finely adjust the ash content of the middlings, A 4 In order to greatly adjust the ash content of middlings, the target regulation algorithm is as follows:
wherein->，/>
Wherein k is 32 、k 52 The coal quality is related, and the value is conveniently calculated to be 1; function u 32 、u 52 Also, depending on the quality of the coal, it may be any type of function, here calculated as a linear function.
Wherein L is 3 Is the current insertion depth of the two-section central tube, (x) Z -x 2 ）b 3 +c 3 B, adjusting the insertion depth of the two-section central tube 3 As a coefficient, c 3 Is a constant value, b 3 、c 3 All are related to coal quality; s is S 5 Is the current cross-section area of the bottom flow port (x) Z -x 2 ）b 5 +c 5 B is the sectional area adjustment value of the bottom flow port 5 As a coefficient, c 5 Is a constant value, b 5 、c 5 All are related to coal quality.
In addition, in order to improve the accuracy and the efficiency of regulation and control, a demarcation threshold value which is slightly and greatly adjusted can be set, and each regulation and control target is provided with a demarcation threshold value corresponding to each regulation and control target. The demarcation threshold value is related to the quality of the raw coal, and a multi-level mapping relation can be specifically set to divide the quality of the raw coal into a plurality of levels, and each level corresponds to a corresponding demarcation threshold value.
In addition, the above-mentioned coefficients related to the coal quality may also be set with respective multi-level mapping relationships, and then the coefficients may be updated according to the specifically detected raw coal quality data, so as to meet the sorting requirements of different coal qualities.
Specifically, for any regulation target, a deviation value can be determined first, and the deviation value is the difference between the regulation target and the corresponding coal quality data.
In a specific example, if one of the regulation targets is that the gangue ash content is greater than a certain value, the gangue ash content data is extracted from the coal quality data, namely the corresponding coal quality data, and then the difference between the certain value and the gangue ash content data is calculated.
And comparing the absolute value of the difference value with a demarcation threshold value, if the absolute value of the difference value is smaller than the demarcation threshold value, only taking the control point capable of playing a fine adjustment function as a part of a target regulation algorithm, and if the absolute value of the difference value is larger than the demarcation threshold value, taking the control point capable of playing a fine adjustment function and a large-scale adjustment function as a part of the target regulation algorithm.
In a specific example, if one of the regulation targets is that the gangue ash content is greater than 80%, the actual detection value of the gangue ash content in the coal quality data is 75%, the absolute value of the difference value of the gangue ash content and the actual detection value of the gangue ash content is 5%, and the demarcation threshold value is preset to be 3%, so that the absolute value of the difference value of the gangue ash content and the actual detection value of the gangue ash content is greater than the decomposition threshold value, a control point capable of performing fine adjustment and large-scale adjustment is needed to be used for regulation together.
In addition, in order to perform more accurate regulation, the present embodiment may update the target regulation algorithm periodically or in real time, and in the regulation process, if the absolute value of the difference is detected to be smaller than the demarcation threshold value in the next period or in real time, the target regulation algorithm may be updated at this time, where the updated content is to remove the control point with a large adjustment effect, and only the control point with a fine adjustment effect is reserved.
In a specific example, taking periodicity as an example, the periodicity may be 1 minute, and every time a new period is reached, it is determined that the absolute value of the difference is greater than the regulation target corresponding to the demarcation threshold value once, and if the absolute value of the current difference is less than the demarcation threshold value, the target regulation algorithm is updated.
And for the regulation and control target corresponding to the absolute value of the difference value smaller than the demarcation threshold value, updating and periodic judgment of the process are not needed.
In addition, taking real-time detection as an example, each time coal quality data is detected, a difference value is calculated, then the calculated difference value is compared with a demarcation threshold value, and if the absolute value of the detected current difference value is smaller than the demarcation threshold value, the target regulation algorithm is updated. And for the regulation and control target corresponding to the absolute value of the difference value smaller than the demarcation threshold value, the updating and real-time judgment of the process are not needed.
Step 102, determining respective corresponding adjustment values of each adjustment mechanism according to the coal quality data and the target regulation algorithm.
In the step, for any target regulation algorithm, the sub-data of the coal quality to be compared corresponding to the target regulation algorithm in the coal quality data can be input into the target regulation algorithm to obtain the regulation value of the regulation mechanism corresponding to the target regulation algorithm.
In the step, the to-be-compared coal sub-data corresponding to the target regulation algorithm in the coal data and the corresponding preset regulation target are input into the target regulation algorithm to obtain the regulation value corresponding to the control point.
Taking the target regulation algorithm for regulating and controlling the middle coal ash as an example:
，/>. And inputting the coal quality sub-data to be compared and a preset regulation target into a target regulation algorithm to obtain the regulation values of the two control points.
And 103, for any adjusting mechanism, adjusting the opening of the adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to realize the control of the logarithmic cyclone.
In this step, after a specific adjustment value is obtained, the adjustment value may be directly adjusted for the corresponding adjustment mechanism.
In addition, in this embodiment, the secret control data and the desired interval of the combined dielectric density may be obtained, and the combined dielectric system may be controlled according to the secret control data and the desired interval of the combined dielectric density.
Specifically, the close control data comprises a densimeter for measuring the close medium density and a magnetic substance content meter for measuring the close medium magnetic substance content, and the close medium system comprises a close control subsystem, a barrel position adjusting subsystem and a medium adding subsystem.
When the medium combination system is controlled, the expected medium combination density interval, medium combination density data and magnetic substance content data can be acquired first; and then controlling the density control subsystem, the barrel position adjusting subsystem and the adding medium subsystem according to the medium density expected interval, the medium density data and the magnetic substance content data so as to enable the medium density to be between the medium density expected intervals.
It should be noted that, in this embodiment, the control of the combining system is also combined into the digital-to-analog cyclone controller, so that the number of control systems can be simplified, and the control of the combining system and the cyclone control can be better integrated, so as to improve the control correlation thereof.
When the method is combined, control logic of the secret control subsystem, the barrel position adjusting subsystem and the adding medium subsystem can be transferred to the control system, and then the secret control subsystem, the barrel position adjusting subsystem and the adding medium subsystem are adjusted and controlled by utilizing secret control data and a medium density expected interval.
In the embodiment, a plurality of adjusting mechanisms are arranged on a digital-to-analog cyclone, coal quality data detected by coal quality detection equipment in real time and a preset adjusting and controlling target are firstly obtained, and a target adjusting and controlling algorithm corresponding to the preset adjusting and controlling target is determined; then determining the respective corresponding regulating value of each regulating mechanism according to the coal quality data and the target regulating algorithm; and for any adjusting mechanism, the opening degree of the adjusting mechanism is adjusted according to the adjusting value corresponding to the adjusting mechanism so as to realize the control of the logarithmic cyclone. Based on this, the scheme of this application can be according to coal quality data and predetermine the regulation and control target, under the online condition, just can be automatically to each adjustment mechanism control to realize this predetermineeing the regulation and control target, avoided stopping production debugging or the condition emergence that equipment was changed.
Examples
Fig. 3 is a schematic structural diagram of a control system for a digital-to-analog cyclone according to a second embodiment of the present application. As shown in fig. 3, the digital cyclone control system comprises a digital cyclone, a digital cyclone controller and a plurality of coal quality data measuring assemblies; the digital-to-analog cyclone is provided with a plurality of adjusting mechanisms, and each adjusting mechanism is a control point.
The coal quality data measuring components are respectively arranged at a raw coal feeding position, a clean coal medium-removing and dewatering grading position, a medium coal medium-removing and dewatering grading position and a gangue medium-removing and dewatering grading position; the plurality of coal quality data measuring assemblies are connected with the digital-to-digital cyclone controller and are used for sending the measured coal quality data to the digital-to-digital cyclone controller for connection; the digital-to-analog cyclone controllers are all connected with the control point and are used for executing the digital-to-analog cyclone control method according to the first embodiment.
In addition, the digital-to-analog cyclone control system further comprises: a close-medium secret control data measurement component;
the digital-to-analog cyclone controller is connected with the close-medium close-control data measuring component and is used for obtaining the close-medium close-control data measured by the close-medium close-control data measuring component; the digital-to-analog cyclone controller is also connected with the interface system and is used for executing the digital-to-analog cyclone control method provided by the first embodiment, and the digital-to-analog cyclone control method specifically comprises the following steps:
acquiring coal quality data and a preset regulation and control target detected by coal quality detection equipment in real time, and determining a target regulation and control algorithm corresponding to the preset regulation and control target;
determining a respective corresponding adjusting value of each adjusting mechanism according to the coal quality data and the target adjusting algorithm;
and for any adjusting mechanism, adjusting the opening of the adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to control the digital-to-analog cyclone.
Further, the coal quality data comprises first coal quality sub-data corresponding to raw coal, second coal quality sub-data corresponding to clean coal, third coal quality sub-data corresponding to middling coal and fourth coal quality sub-data corresponding to gangue;
the determining the target regulation algorithm corresponding to the preset regulation target comprises the following steps:
determining a regulation type corresponding to the preset regulation target, wherein the regulation type comprises at least one of the following types: raw coal regulation type, clean coal regulation type, middling regulation type and gangue regulation type;
screening the coal sub-data to be compared from the first coal sub-data, the second coal sub-data, the third coal sub-data and the fourth coal sub-data according to the regulation type;
and determining a target regulation algorithm according to the coal quality sub-data to be compared and the preset regulation target.
Further, the determining a target regulation algorithm according to the coal quality sub-data to be compared and the preset regulation target includes:
determining a to-be-regulated regulating mechanism and a regulating model corresponding to the to-be-regulated regulating mechanism according to the coal quality sub-data to be compared and the preset regulating target;
and determining a target regulation algorithm according to all the regulation models.
Further, the determining, according to the coal quality data and the target regulation algorithm, the respective regulation value of each regulation mechanism includes:
and for any target regulation algorithm, inputting the coal sub-data to be compared corresponding to the target regulation algorithm in the coal quality data into the target regulation algorithm to obtain the regulation value of the regulation mechanism corresponding to the target regulation algorithm.
Further, the method further comprises:
and obtaining the secret control data and the medium density combination expected interval, and controlling the medium combination system according to the secret control data and the medium density combination expected interval.
Further, the close control data comprises a densimeter for measuring the close medium density and a magnetic substance content meter for measuring the close medium magnetic substance content, and the close medium system comprises a close control subsystem, a barrel position adjusting subsystem and a medium adding subsystem;
the obtaining the secret control data and the combined medium density expected interval, and controlling the combined medium system according to the secret control data and the combined medium density expected interval comprises the following steps:
acquiring the density data of the medium density expected interval and the medium density and the magnetic substance content data;
and controlling the secret control subsystem, the barrel position adjusting subsystem and the medium adding subsystem according to the medium combination density expected interval, the medium combination density data and the magnetic substance content data so as to enable the medium combination density to be between the medium combination density expected intervals.
The coal quality data measuring assembly comprises an ash content meter, a belt scale and a sink-float meter. The close-medium close-control data measurement assembly comprises a densimeter and a magnetic substance content meter.
Example two
The embodiment provides a digital-to-analog cyclone control device, mainly including:
the algorithm determining module is used for acquiring the coal quality data detected by the coal quality detecting equipment in real time and a preset regulation and control target, and determining a target regulation and control algorithm corresponding to the preset regulation and control target;
the adjusting value determining module is used for determining the adjusting value corresponding to each adjusting mechanism according to the coal quality data and the target regulation algorithm;
and the adjusting module is used for adjusting the opening of any adjusting mechanism according to the adjusting value corresponding to the adjusting mechanism so as to control the digital-to-analog cyclone.
In the embodiment, a plurality of adjusting mechanisms are arranged on a digital-to-analog cyclone, coal quality data detected by coal quality detection equipment in real time and a preset adjusting and controlling target are firstly obtained, and a target adjusting and controlling algorithm corresponding to the preset adjusting and controlling target is determined; then determining the respective corresponding regulating value of each regulating mechanism according to the coal quality data and the target regulating algorithm; and for any adjusting mechanism, the opening degree of the adjusting mechanism is adjusted according to the adjusting value corresponding to the adjusting mechanism so as to realize the control of the logarithmic cyclone. Based on this, the scheme of this application can be according to coal quality data and predetermine the regulation and control target, under the online condition, just can be automatically to each adjustment mechanism control to realize this predetermineeing the regulation and control target, avoided stopping production debugging or the condition emergence that equipment was changed.
Further, the coal quality data comprises first coal quality sub-data corresponding to raw coal, second coal quality sub-data corresponding to clean coal, third coal quality sub-data corresponding to middling coal and fourth coal quality sub-data corresponding to gangue;
the algorithm determining module is specifically used for:
determining a regulation type corresponding to the preset regulation target, wherein the regulation type comprises at least one of the following types: raw coal regulation type, clean coal regulation type, middling regulation type and gangue regulation type;
screening the coal sub-data to be compared from the first coal sub-data, the second coal sub-data, the third coal sub-data and the fourth coal sub-data according to the regulation type;
and determining a target regulation algorithm according to the coal quality sub-data to be compared and the preset regulation target.
Further, the algorithm determining module is specifically configured to:
determining a to-be-regulated regulating mechanism and a regulating model corresponding to the to-be-regulated regulating mechanism according to the coal quality sub-data to be compared and the preset regulating target;
and determining a target regulation algorithm according to all the regulation models.
Further, the adjustment value determining module is specifically configured to:
and for any target regulation algorithm, inputting the coal sub-data to be compared corresponding to the target regulation algorithm in the coal quality data into the target regulation algorithm to obtain the regulation value of the regulation mechanism corresponding to the target regulation algorithm.
Further, the device is specifically used for:
and obtaining the secret control data and the medium density combination expected interval, and controlling the medium combination system according to the secret control data and the medium density combination expected interval.
Further, the close control data comprises a densimeter for measuring the close medium density and a magnetic substance content meter for measuring the close medium magnetic substance content, and the close medium system comprises a close control subsystem, a barrel position adjusting subsystem and a medium adding subsystem;
the device is also specifically used for:
acquiring the density data of the medium density expected interval and the medium density and the magnetic substance content data;
and controlling the secret control subsystem, the barrel position adjusting subsystem and the medium adding subsystem according to the medium combination density expected interval, the medium combination density data and the magnetic substance content data so as to enable the medium combination density to be between the medium combination density expected intervals.
Note that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will appreciate that the present application is not limited to the particular embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, the scope of which is defined by the scope of the appended claims.
Claims (7)
1. A method of controlling a digital cyclone, the digital cyclone being provided with a plurality of adjustment mechanisms, the method comprising:
acquiring coal quality data and a preset regulation and control target detected by coal quality detection equipment in real time, and determining a target regulation and control algorithm corresponding to the preset regulation and control target;
determining a respective corresponding adjusting value of each adjusting mechanism according to the coal quality data and the target adjusting algorithm;
for any adjusting mechanism, the opening of the adjusting mechanism is adjusted according to the adjusting value corresponding to the adjusting mechanism, so as to realize the control of the digital-to-analog cyclone;
the coal quality data comprises first coal quality sub-data corresponding to raw coal, second coal quality sub-data corresponding to clean coal, third coal quality sub-data corresponding to middling coal and fourth coal quality sub-data corresponding to gangue;
the determining the target regulation algorithm corresponding to the preset regulation target comprises the following steps:
determining a regulation type corresponding to the preset regulation target, wherein the regulation type comprises at least one of the following types: raw coal regulation type, clean coal regulation type, middling regulation type and gangue regulation type;
screening the coal sub-data to be compared from the first coal sub-data, the second coal sub-data, the third coal sub-data and the fourth coal sub-data according to the regulation type;
determining a target regulation algorithm according to the coal quality sub-data to be compared and the preset regulation target;
the target regulation algorithm is as follows:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein T represents a control point, whichComprises a control point and a process control point corresponding to each adjusting mechanism, which is +.>；/>For any combination of opening values of the respective control points of each adjusting mechanism +.>A combination of process control points;
j=1, 2, 3, 4, 5 or 6, where x represents ash data, m represents weight data, +.>Representing density composition, and subscripts i=0, 1, 2 and 3 respectively represent raw coal, clean coal, middlings and gangue; k with subscript is a preset coefficient, and the function u is a preset adjusting function; />To->The density of raw coal, clean coal, middling coal and gangue respectively;
the opening values of the control points corresponding to the adjusting mechanisms are respectively as follows:
control point A 1 The method comprises the following steps:；
control point A 2 The method comprises the following steps:；
control point A 3 The method comprises the following steps:；
control point A 4 The method comprises the following steps:；
control point A 5 The method comprises the following steps:；
control point A 6 The method comprises the following steps:；
wherein x represents ash data, m represents weight data,representing density composition, wherein the subscript of the control point A and the first subscript of the double subscript are values of j, and the subscripts of the second subscript and x, m and rho of the double subscript are 0, 1, 2 and 3, which respectively represent raw coal, clean coal, middlings and gangue; k with subscript is a preset coefficient, and the function u is a preset adjusting function; />To the point ofThe density components of raw coal, clean coal, middling coal and gangue are respectively.
2. The method of claim 1, wherein the determining a target regulation algorithm according to the coal sub-data to be compared and the preset regulation target comprises:
determining a to-be-regulated regulating mechanism and a regulating model corresponding to the to-be-regulated regulating mechanism according to the coal quality sub-data to be compared and the preset regulating target;
and determining a target regulation algorithm according to all the regulation models.
3. The method of claim 1, wherein said determining a respective adjustment value for each of said adjustment mechanisms based on said coal quality data and said target regulation algorithm comprises:
and for any target regulation algorithm, inputting the coal sub-data to be compared corresponding to the target regulation algorithm in the coal quality data into the target regulation algorithm to obtain the regulation value of the regulation mechanism corresponding to the target regulation algorithm.
4. The method according to claim 1, wherein the method further comprises:
and obtaining the secret control data and the medium density combination expected interval, and controlling the medium combination system according to the secret control data and the medium density combination expected interval.
5. The method of claim 4, wherein the close control data comprises a densitometer for measuring a close dielectric density and a magnetic substance content meter for measuring a close dielectric magnetic substance content, the close dielectric system comprising a close control subsystem, a barrel position adjustment subsystem, and a bcg subsystem;
the obtaining the secret control data and the combined medium density expected interval, and controlling the combined medium system according to the secret control data and the combined medium density expected interval comprises the following steps:
acquiring the density data of the medium density expected interval and the medium density and the magnetic substance content data;
and controlling the secret control subsystem, the barrel position adjusting subsystem and the medium adding subsystem according to the medium combination density expected interval, the medium combination density data and the magnetic substance content data so as to enable the medium combination density to be between the medium combination density expected intervals.
6. The digital cyclone control system is characterized by comprising a digital cyclone, a digital cyclone controller and a plurality of coal quality data measuring assemblies, wherein the coal quality data measuring assemblies comprise an ash meter, a belt scale and a floating and sinking meter;
the digital-to-analog cyclone is provided with a plurality of adjusting mechanisms, and each adjusting mechanism is a control point;
the coal quality data measuring components are respectively arranged at a raw coal feeding position, a clean coal medium-removing and dewatering grading position, a medium coal medium-removing and dewatering grading position and a gangue medium-removing and dewatering grading position;
the plurality of coal quality data measuring assemblies are connected with the digital-to-digital cyclone controller and are used for sending measured coal quality data to the digital-to-digital cyclone controller for connection;
the digital cyclone controllers are all connected with the control point and are used for executing the digital cyclone control method according to any one of claims 1-3.
7. The system of claim 6, wherein the system further comprises: the close-medium close-control data measurement assembly comprises a densimeter and a magnetic substance content meter;
the digital-to-analog cyclone controller is connected with the close-medium close-control data measuring component and is used for obtaining close-control data measured by the close-medium close-control data measuring component;
the digital cyclone controller is also connected with a combining system for executing the digital cyclone control method as set forth in claim 4 or 5.
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