CN111804022A - Filter press feeding control method, device, equipment, storage medium and system - Google Patents
Filter press feeding control method, device, equipment, storage medium and system Download PDFInfo
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- CN111804022A CN111804022A CN202010918368.1A CN202010918368A CN111804022A CN 111804022 A CN111804022 A CN 111804022A CN 202010918368 A CN202010918368 A CN 202010918368A CN 111804022 A CN111804022 A CN 111804022A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
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Abstract
The application provides a filter press feeding control method, device, equipment, storage medium and system, and relates to the technical field of filter presses. The method comprises the following steps: acquiring production data of the filter press in a preset time period before the current time; judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data; and if the filter press meets the feeding ending condition, controlling the filter press to end feeding. By applying the embodiment of the application, the control precision of the feeding ending time can be improved.
Description
Technical Field
The application relates to the technical field of filter presses, in particular to a filter press feeding control method, device, equipment, storage medium and system.
Background
The filter press is widely applied to the fields of metallurgy, coal dressing, mines and the like, is solid-liquid separation equipment, and can filter liquid in raw materials by utilizing a special filter medium (such as filter cloth).
At present, the filter press is in the process of feeding, the timing of ending feeding is usually controlled according to the experience of the staff, for example, when the staff observes that the drops of filtered liquid are not linear, the feeding ending button on the control cabinet can be manually closed to control the filter press to end feeding.
However, due to the influence of the external environment and the subjectivity of the workers, the feeding may be finished too early or too late, and the timing of finishing the feeding is inaccurate.
Disclosure of Invention
The present application is directed to provide a method, an apparatus, a device, a storage medium, and a system for controlling feeding of a filter press, which can improve the accuracy of controlling the timing of feeding.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a filter press feed control method, including:
acquiring production data of the filter press in a preset time period before the current time;
judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data;
and if the filter press meets the feeding ending condition, controlling the filter press to end feeding.
Optionally, before determining whether the filter press meets a feeding ending condition according to the production data in the preset time period and a preset ending parameter threshold of a type corresponding to the production data, the method further includes:
generating a production data change curve of the filter press in the preset time period according to the production data in the preset time period;
filtering abnormal fluctuation data in the production data change curve;
the step of judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and the preset ending parameter threshold value of the corresponding type of the production data comprises the following steps:
and judging whether the filter press meets the condition of ending feeding according to the production data in the production data change curve after the abnormal fluctuation data are filtered and the preset ending parameter threshold value.
Optionally, before determining whether the filter press meets a feeding ending condition according to the production data in the preset time period and a preset ending parameter threshold of a type corresponding to the production data, the method further includes:
and performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold.
Optionally, the performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold includes:
and performing fitting calculation according to the feeding data of the filter press and the historical production data to obtain the preset ending parameter threshold value.
Optionally, the production data comprises: at least one type of production data, and the step of judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data comprises the following steps:
and judging whether the filter press meets the condition of finishing feeding according to the production data of each type in the preset time period and the preset finishing parameter threshold value of each type.
Optionally, the at least one type of production data comprises: current to the feed pump, and/or filtrate water flow.
In a second aspect, embodiments of the present application further provide a filter press feed control apparatus, including:
the acquisition module is used for acquiring the production data of the filter press in a preset time period before the current time;
the judging module is used for judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data;
and the control module is used for controlling the filter press to finish feeding if the filter press meets the feeding finishing condition.
Optionally, before the determining module, the apparatus further includes:
the generating module is used for generating a production data change curve of the filter press in the preset time period according to the production data in the preset time period;
the filtering module is used for filtering the abnormal fluctuation data in the production data change curve;
correspondingly, the judging module is specifically configured to:
and judging whether the filter press meets the condition of ending feeding according to the production data in the production data change curve after the abnormal fluctuation data are filtered and the preset ending parameter threshold value.
Optionally, before the determining module, the apparatus further includes:
and the calculation module is used for performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold.
Optionally, the calculation module is specifically configured to:
and performing fitting calculation according to the feeding data of the filter press and the historical production data to obtain the preset ending parameter threshold value.
Optionally, the production data comprises: the judgment module is further specifically configured to:
and judging whether the filter press meets the condition of finishing feeding according to the production data of each type in the preset time period and the preset finishing parameter threshold value of each type.
Optionally, the at least one type of production data comprises: current to the feed pump, and/or filtrate water flow.
In a third aspect, an embodiment of the present application provides a filter press feed control apparatus, including: a processor, a storage medium and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, the processor and the storage medium communicate via the bus when the filter press feed control apparatus is in operation, and the processor executes the machine-readable instructions to perform the steps of the filter press feed control method of the first aspect.
In a fourth aspect, the present application provides a storage medium having a computer program stored thereon, where the computer program is executed by a processor to perform the steps of the filter press feed control method of the first aspect.
In a fifth aspect, an embodiment of the present application provides a filter press feed control system, including: the device comprises a filter press, monitoring equipment and control equipment, wherein the monitoring equipment and the control equipment are arranged at preset positions on the filter press; wherein the feeding pump of the filter press and the monitoring device are respectively in communication connection with the control device, and the control device is the feeding control device of the filter press of the third aspect.
The beneficial effect of this application is:
the embodiment of the application provides a filter press feeding control method, a device, equipment, a storage medium and a system, wherein the method comprises the following steps: acquiring production data of the filter press in a preset time period before the current time; judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data; and if the filter press meets the feeding ending condition, controlling the filter press to end feeding. By adopting the control method of the filter press, which is provided by the embodiment of the application, a plurality of production data of the filter press before the current time can be obtained, whether the filter press meets the preset feeding ending condition is judged by utilizing the obtained production data and the preset parameter threshold, the subjectivity caused by observing that liquid dripping does not form a line in a manual mode is avoided, and the control precision of the feeding ending time is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic flow chart of a method for controlling the feeding of a filter press according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart of another method for controlling the feeding of a filter press according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart of another method for controlling the feeding of a filter press according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating another method for controlling the feeding of a filter press according to an embodiment of the present disclosure;
FIG. 5 is a schematic flow chart of a method for ending feed control according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a feeding control device of a filter press according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of another feeding control device of a filter press according to an embodiment of the present application;
FIG. 8 is a schematic structural diagram of a feeding control device of a filter press according to an embodiment of the present application;
figure 9 is a schematic structural diagram of a filter press feed control device provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Before explaining the embodiments of the present application in detail, an application scenario of the present application will be described first. When the filter press starts to work, the compression switch can be started firstly, so that the piston rod on the oil cylinder body pushes the compression plate to compress the filter plates and the filter cloth between the compression plate and the thrust plate, and at the moment, a filter chamber can be formed between the filter plates. Then, a feeding switch can be started, for example, a feeding pump is enabled to start to work, the feeding pump can enable raw materials to enter each filtering chamber from the feed inlets of the pressing plate and the thrust plate respectively through pipelines, and solid particles in the raw materials are trapped in the filtering chambers due to the fact that the particle sizes of the solid particles are larger than the pore sizes of the filtering media (such as filter cloth) in each filtering chamber, so that filter cakes are formed; the liquid (filtrate) flows out from the liquid outlet hole below the filter plate. The liquid outflow mode can be divided into open flow filtration and closed flow filtration, wherein the open flow filtration refers to that a water nozzle is arranged on a liquid outlet hole below each filter plate, and liquid can directly flow out of the water nozzle; the blind flow filtration refers to that a liquid outlet channel hole is arranged below each filter plate, liquid outlet holes of a plurality of filter plates are connected into a liquid outlet channel and are discharged by a pipeline connected with the liquid outlet holes below the thrust plate.
Because the chamber spaces are fixed, either premature or late stopping of the material into the chambers can adversely affect production. For example, when the raw material is stopped too early to enter the filter chamber, the water content in the product (filter cake) exceeds the standard, and the subsequent equipment slips and cannot transport the product; or, when the raw material is stopped to enter the filter chamber too late, the feed pump can work inefficiently, the production cost is increased, and the normal production capacity of the whole system is influenced. Therefore, the above-described phenomenon can be solved by the filter press control method in the following embodiment.
The filter press controlled by the filter press feeding control method mentioned in the following examples can be used in a coal preparation plant for performing solid-liquid separation treatment on the mined coal slurry. Of course, the filter press can also be used in other fields where solid-liquid separation is required, such as mining. The application area of the filter press is not limited here.
The filter press feed control method mentioned in the present application is exemplified below with reference to the accompanying drawings. Fig. 1 is a schematic flow chart of a method for controlling feeding of a filter press according to an embodiment of the present disclosure, where the method is applied to a filter press feeding control system, the filter press feeding control system may include a filter press feeding control device, and the filter press feeding control device may be an upper computer, and the upper computer may be a computer with a control function, or may be other mobile devices, such as a tablet computer. The working state of the filter press can be received by the filter press feeding control equipment, and a control command can be sent to the filter press. As shown in fig. 1, the method may include:
s101, obtaining production data of the filter press in a preset time period before the current time.
Specifically, the filter press can generate various production data such as current data, flow data and the like when in operation. Corresponding production data can be collected by corresponding collection devices, such as a flow sensor. The acquisition device can acquire production data according to preset frequency and store the acquired production data in the memory in real time. The production data of the required types can be collected according to actual requirements, the number of the collected production data types is not limited, and the number of the collected production data types can be one or more. The production data acquired by the acquisition device in the preset time period before the current time can be acquired from the memory according to the preset time period.
S102, judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and the preset ending parameter threshold value of the type corresponding to the production data.
S103, if the filter press meets the feeding ending condition, controlling the filter press to end feeding.
In particular, as stated above, the filter press may be operated to generate a plurality of types of production data, each type of production data having a corresponding predetermined end parameter threshold. For example, when the type of the production data is current data, the corresponding preset ending parameter threshold is a preset current ending parameter threshold; when the type of the production data is flow data, the corresponding preset ending parameter threshold is a preset flow ending parameter threshold.
The preset ending parameter threshold values of various types can be set in advance, so that when the type of the obtained production data is A, the preset ending parameter threshold value of the same type of A needs to be obtained, and whether the filter press meets the feeding ending condition is judged, wherein the feeding ending condition is also set in advance.
Assume that the end feed conditions are: and if the production data value is not greater than the preset ending parameter threshold value, controlling the filter press to end feeding.
The control mode can comprise two modes, wherein one mode is that when the feeding ending condition is met, an alarm signal can be sent out, and after receiving the alarm information, a worker can close a feeding ending button on the control cabinet in a manual mode to control the filter press to end feeding; and when the feeding ending condition is met, the filter press machine can be controlled to end feeding through the filter press feeding control system, wherein the specific control process can be that firstly, the filter press feeding control device in the filter press feeding control system can send a control command to the control unit of the filter press machine, and the control unit can control the filter press machine to end feeding according to the control command. The control unit may be a PLC (Programmable logic controller). The mode can completely get rid of manual dependence, replace manual judgment, avoid the influence caused by manual intervention, and can automatically finish feeding of the filter press on the premise of ensuring the precision of feeding timing.
In summary, the present application provides a method for controlling the feeding of a filter press, comprising: acquiring production data of the filter press in a preset time period before the current time; judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data; and if the filter press meets the feeding ending condition, controlling the filter press to end feeding. By adopting the control method of the filter press, which is provided by the embodiment of the application, a plurality of production data of the filter press before the current time can be obtained, whether the filter press meets the preset feeding ending condition is judged by utilizing the obtained production data and the preset parameter threshold, the subjectivity caused by observing that liquid dripping does not form a line in a manual mode is avoided, and the control precision of the feeding ending time is improved.
Fig. 2 is a schematic flow chart of another filter press feed control method provided in an embodiment of the present application, and as shown in fig. 2, the method may further include:
s201, generating a production data change curve of the filter press in the preset time period according to the production data in the preset time period.
S202, filtering abnormal fluctuation data in the production data change curve.
S203, judging whether the filter press meets the feeding ending condition or not according to the production data in the production data change curve after the abnormal fluctuation data are filtered and a preset ending parameter threshold value.
Specifically, the acquired production data in the preset time period may be represented in a form of a graph, where an abscissa on the graph may be represented as time, and an ordinate may be represented as a specific numerical value of the production data at a corresponding time point. The abnormal fluctuation data in the graph can be filtered, for example, the data at time point t2 in a preset time period can be compared with the normal data at time point t1 at the previous moment, and if the difference between the two exceeds a preset value, the production data corresponding to time point t2 can be filtered, wherein the preset value can be set according to experience.
After the abnormal fluctuation data is filtered, the remaining production data is equivalent to the fact that the working condition of the equipment corresponding to the currently generated production data of the type can be fed back really, and for example, the filtered current data can reflect the working condition of the feeding pump really.
The working state of the filter press can be more accurately reflected by adopting the filtered production data, and the feeding finishing time of the filter press can be more accurately controlled.
The preset ending parameter threshold value can be calculated in two ways, wherein one way is obtained by fitting and calculating historical production data, and the other way is that the feeding data of the filter press is also considered on the basis of fitting the historical production data. These two implementations can be illustrated by the following two examples.
In an example, fig. 3 is a schematic flow chart of another filter press feeding control method provided in an embodiment of the present application, and as shown in fig. 3, before step S102 in fig. 1, the method may further include:
s301, performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain a preset ending parameter threshold value.
Specifically, historical production data can be classified and stored according to types corresponding to the production data, the historical production data of corresponding types can be obtained according to actual requirements, and each type of historical production data is subjected to fitting calculation to obtain a preset ending parameter threshold value of the corresponding type.
For example, if it is necessary to determine whether the filter press finishes feeding according to the production data of type a, the historical production data of type a may be obtained in various ways, for example, the filter press randomly selects a plurality of sets of production data at the end of feeding in a certain day, then averages the plurality of sets of production data, and takes the averaged value as the preset end parameter threshold; the filter press can also randomly select a plurality of groups of production data in a plurality of days when the feeding is finished, then average the plurality of groups of data, and the averaged value is the preset finishing parameter threshold value. It should be noted that the present application does not limit the manner in which the preset end parameter threshold is obtained by the filter press.
The preset ending parameter threshold value is revised by using the historical parameters, so that the obtained preset ending parameter threshold value can be more accurate, and the feeding ending time of the filter press can be better controlled.
In another example, fig. 4 is a schematic flow chart of another filter press feeding control method provided in the embodiment of the present application, and as shown in fig. 4, before step S102 in fig. 1, the method may further include:
s401, performing fitting calculation according to the feeding data of the filter press and historical production data to obtain the preset ending parameter threshold value.
Specifically, in the actual production process, the obtained parameters of the feed materials (raw materials) with the same essence are different due to different production modes. For example, in a coal preparation plant, raw coal is mined from a coal mine and is washed, but different washing processes can cause different concentrations of coal slime water in the raw coal, and when the concentration of the coal slime water is higher, the higher the content of the coal slime in the coal slime water is, the larger the coal slime amount processed in unit time is, so that production data generated by a filter press during working can be influenced. Therefore, the feeding data (concentration) needs to be monitored constantly, and when the feeding data changes, the preset ending parameter threshold can be revised by combining the corresponding historical production data.
For example, if three kinds of processes for washing raw coal are assumed, three kinds of standards exist for the concentration of the washed coal slurry, and if the concentration of the coal slurry entering through the feed pump at the previous moment is standard one and the concentration of the coal slurry entering through the feed pump at the previous moment is standard two, the preset ending parameter threshold value can be revised by acquiring historical data generated when the concentration is standard two.
Therefore, the preset ending parameter threshold value can be more consistent with the actual production state and is matched with the actual feeding parameter, and the accuracy of controlling the ending feeding time of the filter press is ensured.
Further, the production data includes: at least one type of production data, and the step of judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and the preset ending parameter threshold value of the type corresponding to the production data comprises the following steps:
and judging whether the filter press meets the condition of ending feeding according to the production data of each type in the preset time period and the preset ending parameter threshold value of each type.
In particular, the filter press may be operated to obtain at least one type of production data generated during operation of the filter press, such as feed pump current data, and/or filtrate water flow. Assuming that the two types of production data can be collected simultaneously, the preset end parameter thresholds of the two types can be set in advance. When the feed pump is started, the two types of production data collected in real time are stored in a memory, and the two types of production data in a preset time period before the current time are acquired from the memory. The two types of production data can be respectively processed to obtain the target production data of the two types corresponding to the current moment, and whether the filter press meets the feeding ending condition or not can be judged by combining preset ending parameter thresholds of the two types.
Wherein the end feed conditions may include end feed conditions corresponding to the two types of production data, respectively. For example, assuming that the two types are a and B, respectively, where a type corresponds to current data of the feed pump and B type corresponds to filtrate water flow, the content in the end feed conditions may include: the type A production data value is not greater than a type A preset ending parameter threshold, and the type B production data value is not greater than a type B preset ending parameter threshold.
That is, only when the two feeding ending conditions are simultaneously satisfied, the filter press can be controlled to end feeding, so that the conditions of the feeding end and the discharging end are considered, and the feeding ending time of the filter press can be controlled more accurately.
Fig. 5 is a schematic flow chart of an ending feed control method provided in an embodiment of the present application, and as shown in fig. 5, the method may include:
and S501, feeding back the state of the feeding pump.
And S502, feeding back the filtrate water state.
Specifically, the state of the feed pump can be fed back through the current of the feed pump, the state of filtrate water can be fed back through the flow of the filtrate water, the preset current ending parameter threshold corresponding to the current data of the feed pump can be revised through the feeding condition, and the preset flow ending parameter threshold corresponding to the filtrate water flow data can be revised through the feeding condition, wherein the feeding condition can be fed back through the feeding concentration.
And S503, judging whether the filter press meets the feeding ending condition or not according to the fed back feeding pump state and the fed back filtrate water state.
Whether the filter press meets the feeding ending condition or not can be comprehensively judged according to the current data of the feed pump capable of feeding back the state of the feed pump, the filtrate water flow data capable of feeding back the filtrate water state, the corresponding preset current ending parameter threshold value and preset flow ending parameter threshold value.
And S504, controlling the feed pump to stop working.
When the feeding ending condition is met, a control instruction can be sent by the filter press control equipment to control the feeding pump to stop working. Wherein, can go to make the charge pump stop work through automatic or manual mode specifically. It should be noted that it is also possible to determine whether the filter press meets the end-of-feed condition only by means of a single type of production data, which is not limited in this application.
Whether the filter press meets the feeding ending condition or not is comprehensively judged by combining three kinds of information of the feeding pump state, the filtrate water state and the feeding condition, so that the accuracy of the feeding ending time of the filter press can be ensured in multiple dimensions.
The present application provides a device, an apparatus, a storage medium and a system for performing the method for controlling the feeding of the filter press on the basis of the method for controlling the filter press, which are explained below.
Fig. 6 is a schematic structural diagram of a filter press feed control device provided in an embodiment of the present application, and as shown in fig. 6, the device may include:
the obtaining module 601 is configured to obtain production data of the filter press in a preset time period before the current time.
The determining module 602 is configured to determine whether the filter press meets a feeding ending condition according to the production data in the preset time period and a preset ending parameter threshold of a type corresponding to the production data.
A control module 603, configured to control the filter press to end feeding if the filter press meets the end feeding condition.
Fig. 7 is a schematic structural diagram of another feeding control device for filter presses according to an embodiment of the present application, and as shown in fig. 7, the device may further include:
a generating module 701, configured to generate a variation curve of the production data of the filter press in the preset time period according to the production data in the preset time period.
A filtering module 702, configured to filter abnormal fluctuation data in the production data variation curve;
correspondingly, the determining module 602 is specifically configured to determine whether the filter press meets the feeding termination condition according to each production data in the production data change curve after the abnormal fluctuation data is filtered out and a preset termination parameter threshold.
Fig. 8 is a schematic structural diagram of another filter press feed control device provided in an embodiment of the present application, and as shown in fig. 8, the device may further include:
and the calculating module 801 is configured to perform fitting calculation according to the historical production data of the type corresponding to the production data to obtain a preset ending parameter threshold.
Optionally, the calculating module 801 is specifically configured to perform fitting calculation according to the feeding data of the filter press and the historical production data to obtain the preset ending parameter threshold.
Optionally, the production data comprises: the determining module 602 is further configured to determine whether the filter press meets the condition for ending the feeding according to the at least one type of production data in the preset time period and the preset ending parameter threshold for each type.
Optionally, the at least one type of production data includes: current to the feed pump, and/or filtrate water flow.
The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Optionally, the present application further provides a filter press feed control system, which may include: the filter press comprises a filter press, and monitoring equipment and control equipment which are arranged at preset positions on the filter press, wherein a feeding pump of the filter press and the monitoring equipment are respectively in communication connection with the control equipment, and the control equipment can be the mentioned filter press feeding control equipment. The feed pump of the filter press can be connected to the control device in a communication manner via its control unit, the control device first sends a control command to the control unit, and the control unit stops the feed pump according to the control command.
When the filter press needs to comprehensively judge whether the filter press meets the feeding ending condition through the current data and the flow data, the monitoring equipment can comprise a current transformer for acquiring the current data and a flow sensor for acquiring the flow data. The current transformer may be provided in the circuit for the feed pump and the flow sensor may be provided on the pipe for discharging filtrate water, respectively. The current transformer and the flow sensor are respectively connected with the control equipment, and if the filter press is judged to meet the end condition according to the two production data, the control equipment can be used for controlling the switch of the feeding pump to stop the feeding pump, and the feeding pump can also be confirmed and stopped manually.
Fig. 9 is a schematic structural diagram of a filter press feeding control apparatus provided in an embodiment of the present application, and as shown in fig. 9, the filter press feeding control apparatus may include: a processor 901, a storage medium 902 and a bus 903, wherein the storage medium 902 stores machine readable instructions executable by the processor 901, when the filter press feed control device is operated, the processor 901 communicates with the storage medium 902 through the bus 903, and the processor 901 executes the machine readable instructions to execute the steps of the filter press feed control method. The specific implementation and technical effects are similar, and are not described herein again.
Optionally, the present application further provides a storage medium having a computer program stored thereon, the computer program, when executed by a processor, performing the steps of the filter press feed control method described above.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. Alternatively, the indirect coupling or communication connection of devices or units may be electrical, mechanical or other.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to perform some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A filter press feed control method, comprising:
acquiring production data of the filter press in a preset time period before the current time;
judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data;
if the filter press meets the feeding ending condition, controlling the filter press to end feeding;
before judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and the preset ending parameter threshold value of the corresponding type of the production data, the method further comprises the following steps:
and performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold.
2. The method according to claim 1, wherein before determining whether the filter press meets the feeding end condition according to the production data within the preset time period and a preset end parameter threshold corresponding to the production data, the method further comprises:
generating a production data change curve of the filter press in the preset time period according to the production data in the preset time period;
filtering abnormal fluctuation data in the production data change curve;
the step of judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and the preset ending parameter threshold value of the corresponding type of the production data comprises the following steps:
and judging whether the filter press meets the condition of ending feeding according to the production data in the production data change curve after the abnormal fluctuation data are filtered and the preset ending parameter threshold value.
3. The method according to claim 1, wherein the performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold comprises:
and performing fitting calculation according to the feeding data of the filter press and the historical production data to obtain the preset ending parameter threshold value.
4. The method of claim 1, wherein the production data comprises: at least one type of production data, and the step of judging whether the filter press meets the feeding ending condition according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data comprises the following steps:
and judging whether the filter press meets the condition of finishing feeding according to the production data of each type in the preset time period and the preset finishing parameter threshold value of each type.
5. The method of claim 4, wherein the at least one type of production data comprises: current to the feed pump, and/or filtrate water flow.
6. A filter press feed control apparatus, comprising:
the acquisition module is used for acquiring the production data of the filter press in a preset time period before the current time;
the judging module is used for judging whether the filter press meets the feeding ending condition or not according to the production data in the preset time period and a preset ending parameter threshold value of the type corresponding to the production data;
the control module is used for controlling the filter press to finish feeding if the filter press meets the feeding finishing condition;
wherein the apparatus further comprises:
and the calculation module is used for performing fitting calculation according to the historical production data of the type corresponding to the production data to obtain the preset ending parameter threshold.
7. A filter press feed control apparatus, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating via the bus when the filter press feed control apparatus is in operation, the processor executing the machine-readable instructions to perform the steps of the filter press feed control method of any one of claims 1-5.
8. A storage medium having stored thereon a computer program for performing the steps of the method of controlling the feeding of filter presses according to any one of claims 1 to 5 when executed by a processor.
9. A filter press feed control system, comprising: the device comprises a filter press, monitoring equipment and control equipment, wherein the monitoring equipment and the control equipment are arranged at preset positions on the filter press; wherein the feeding pump of the filter press and the monitoring device are respectively connected with the control device in communication, and the control device is the feeding control device of the filter press according to claim 7.
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| CN202010918368.1A CN111804022A (en) | 2020-09-04 | 2020-09-04 | Filter press feeding control method, device, equipment, storage medium and system |
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| CN202010918368.1A CN111804022A (en) | 2020-09-04 | 2020-09-04 | Filter press feeding control method, device, equipment, storage medium and system |
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Application publication date: 20201023 |