CN111111275A - Control system, filter press feeding state detection method and monitoring equipment - Google Patents
Control system, filter press feeding state detection method and monitoring equipment Download PDFInfo
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- CN111111275A CN111111275A CN201911425718.4A CN201911425718A CN111111275A CN 111111275 A CN111111275 A CN 111111275A CN 201911425718 A CN201911425718 A CN 201911425718A CN 111111275 A CN111111275 A CN 111111275A
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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
- B01D25/30—Feeding devices ; Discharge devices
Abstract
The embodiment of the disclosure provides a control system, which comprises a collecting device and a detecting device; the collecting device is used for collecting the feeding state of the filter press; the detection device is used for: receiving the feed condition; and judging the feeding end state of the filter press at least based on the feeding state, and sending a trigger signal when the feeding end state. Parameters related to the feeding state include the value of current flowing through the filter press feeding pump, the feeding flow rate, the filtrate flow rate or the filtrate tank position.
Description
Technical Field
The embodiment of the disclosure relates to a control system, a method for detecting the feeding state of a filter press and monitoring equipment.
Background
The filter presses are single-machine automatic equipment, and each filter press is provided with a respective control panel on the panel to realize the operation of the filter press on site. The operation is divided into automatic and manual modes.
The working process of the filter press in the automatic mode is shown in fig. 1, and specifically comprises the following steps: starting, loosening, plate taking, plate pulling, pressing, feeding, process ending, pressing and blowing, wherein personnel are required to carry out on-site judgment when the feeding is ended. Therefore, whether the feeding is finished or not depends on human experience seriously, and the feeding is not accurate enough and easily causes waste of manpower and equipment.
Disclosure of Invention
The embodiment of the disclosure provides a control system, and the filter press improves the operation efficiency of equipment, reduces the equipment loss and reduces the working strength of workers by automatically judging the feeding ending logic.
The control system provided by the embodiment of the disclosure comprises a collecting device and a detecting device; the collecting device is used for collecting the feeding state of the filter press. The detection device is used for: receiving the feed condition; and judging the feeding end state of the filter press at least based on the feeding state, and sending a trigger signal when the feeding end state.
For example, the parameter related to the feed state includes a value of current flowing through a filter press feed pump, a feed flow rate, a filtrate flow rate, or a filtrate tank location; the detection device at least comprises one or more of the following detection units:
first detecting means for detecting the end state by the current value; a second detecting device for detecting the end state through the feed flow; third detection means for acquiring the end state from the filtrate flow rate; and a fourth detection means for acquiring the end state by the filtrate level change.
For example, the acquisition device comprises an ammeter, and the first detection device comprises a first control unit; the ammeter is used for detecting a plurality of current values flowing through the filter-pressing feeding pump within a set time period and sending the current values to the first control unit.
The first control unit is configured to: receiving the plurality of current values over the first time period; calculating a current average value based on at least the length of the first time period and the plurality of current values; and triggering a feed end signal when the average value of the current is lower than a first set value.
For example, the collecting device is a feeding flow meter, and the second detecting device comprises a second control unit.
The feeding flowmeter is connected with the filter-pressing feeding pump in series to count a plurality of flow values flowing into the filter-pressing feeding barrel.
The second control unit is configured to: receiving the plurality of flow values; comparing the plurality of flow rate values to the second set flow rate value; and triggering a feeding end signal when one of the plurality of flow values is smaller than the second set flow value.
For example, the collection device comprises a filtrate flow meter.
The third detection means further comprises a third control unit, wherein the filtrate flow meter is connected in series on the path between the filtrate tank outlet and the filtrate tank to monitor a single filtrate flow value.
The third control unit is configured to: receiving the plurality of filtrate flow values; comparing the filtrate flow value with a set third flow value; and when the filtrate flow value is smaller than the third flow value, triggering a feeding end signal.
For example, the acquisition device includes a video information acquisition device, and the third detection device includes: an image recognition unit and a fourth control unit; the video information acquisition device is used for acquiring the flow rate of filtrate at the filtrate outlet and sending the image data of the flow rate of the filtrate to the image recognition unit.
The image recognition unit is configured to: and acquiring the time when the dropping water of the filtrate does not line according to the flow velocity image data of the filtrate, and sending a signal to the fourth control unit at the time so that the fourth control unit generates a signal for triggering the feeding to end.
For example, the collection means comprises a filtrate tank level gauge, and the fourth detection means comprises: and a fifth control unit.
The filtrate tank meter is arranged at the outlet of the filtrate tank to detect and output the level value of the filtrate tank;
the fifth control unit is configured to: receiving the level value; comparing the level value with a set level value; and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
For example, the acquisition device includes a video information acquisition device, and the fourth detection device includes: an image recognition unit and a fourth control unit.
The video information acquisition device is used for acquiring liquid level data of a filtrate tank and sending the filtrate data to the image identification unit.
The image recognition unit is configured to: receiving the level value; comparing the level value with a set level value; and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
The embodiment of the disclosure further provides a method for detecting a feeding state of a filter press, which includes collecting a state parameter value when the filter press feeds, wherein the state parameter at least includes one of the following parameters: the current value, the feeding flow, the filtrate flow speed and the filtrate groove position of the filter pressing feeding pump are measured; comparing the state parameter value with a set value; and triggering a feeding end signal when the state parameter value is smaller than the set value.
The disclosed implementation also provides a monitoring device, which comprises a memory, and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the method for detecting the feeding state of the filter press.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.
Figure 1 is a flow diagram of the operation of a prior art filter press;
FIG. 2 is a block diagram of a control system provided by an embodiment of the present disclosure;
FIG. 3 is a block diagram of the detection apparatus of the present disclosure;
FIG. 4 is a flow chart of a method for detecting the end of a filter press feed according to an embodiment of the present disclosure;
FIG. 5A is a flow chart of whether a first feed is terminated as provided by an embodiment of the present disclosure;
FIG. 5B is a schematic view of the composition of the filtrate showing whether the first feed has been completed or not according to an embodiment of the present disclosure;
FIG. 6A is a flow chart of whether a second feed has ended as provided by an embodiment of the present disclosure;
FIG. 6B is a schematic view of the composition of the filtrate indicating whether the second feed has been completed as provided by an embodiment of the present disclosure;
FIG. 7A is a flow chart of whether a third feed provided by an embodiment of the present disclosure is terminated;
FIG. 7B is a schematic view of the composition of the filtrate with or without a third feed termination provided by an embodiment of the present disclosure;
FIG. 8A is a flow chart of whether a fourth feed provided by an embodiment of the present disclosure is complete;
FIG. 8B is a schematic view of the composition of the filtrate showing whether the fourth feed was completed or not according to an embodiment of the present disclosure;
FIG. 9A is a flow chart of whether a fifth feed is completed as provided by the examples of the present disclosure;
FIG. 9B is a schematic view of the composition of the filtrate indicating whether the fifth feed has been completed as provided by the examples of the present disclosure;
FIG. 10A is a flow chart of whether a sixth feed is completed as provided by the examples of the present disclosure;
FIG. 10B is a schematic view of the composition of the filtrate indicating whether the sixth feed has been completed as provided by an embodiment of the present disclosure;
fig. 11 is a schematic composition diagram of a monitoring device provided in an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be described more fully hereinafter with reference to the non-limiting exemplary embodiments shown in the accompanying drawings and detailed in the following description, taken in conjunction with the accompanying drawings, which illustrate, more fully, the exemplary embodiments of the present disclosure and their various features and advantageous details. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale. The examples given in this disclosure are intended merely to facilitate an understanding of ways in which the example embodiments of the disclosure may be practiced and to further enable those of skill in the art to practice the example embodiments. Thus, these examples should not be construed as limiting the scope of the embodiments of the disclosure.
Unless otherwise specifically defined, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The same or similar reference numerals in the present disclosure denote the same or similar components. The references to "first" and "second" … … in this disclosure are for convenience only and do not necessarily result in their belonging to different physical entities. That is, the first detection device and the second detection device described in the embodiments of the present disclosure may be the same physical entity.
As shown in fig. 2, the control system 100 provided by the embodiment of the present disclosure includes an acquisition device 110 and a detection device 130. The collecting device 110 is used for collecting the feeding state of the filter press. The detection device 130 is configured to: receiving the feed condition; and judging the feeding end state of the filter press at least based on the feeding state, and sending a trigger signal when the feeding end state. The feeding can be finished by triggering the feeding end signal, so that the operation efficiency of the equipment is improved, and the loss of the equipment is reduced.
In some embodiments, the parameters associated with the feed conditions include the value of current flowing through the filter press feed pump, feed flow rate, filtrate flow rate, or filtrate tank location, and these condition parameters may be obtained based on one or more collection devices 110. The detection means 130 comprise at least one or more of the following detection units (as shown in fig. 3): a first detection device 1301 that detects the end state from the current value; a second detecting device 1302 for detecting the ending status according to the feeding flow rate; a third detecting device 1303 for acquiring the ending state according to the filtrate flow rate; and fourth detecting means 1304 for acquiring the end state by the filtrate level change.
In some embodiments, the acquisition device 110 and the control device 130 communicate by wire; in other embodiments, the acquisition device 110 and the control device 130 may also communicate wirelessly. The acquisition device 110 may transmit the acquired status parameter values to the control device 130 via a wired or wireless connection.
As shown in fig. 4, the embodiment of the present disclosure further provides a method for detecting a feeding state of a filter press, where the monitoring method is implemented based on the control system 100.
The method for detecting the feeding state of the filter press comprises, step 150, collecting a state parameter value of the filter press during feeding by the collecting device 110, wherein the state parameter at least comprises one of the following parameters: the current value, the feeding flow, the filtrate flow speed and the filtrate groove position of the filter pressing feeding pump. In step 151, the detection device 130 compares the status parameter value with a set value, and when the status parameter value is smaller than the set value, the detection device 130 triggers a feeding end signal.
The following describes the composition and the workflow of the first detection device 1301, the second detection device 1302, the third detection device 1303 and the fourth detection device 1304 in the above-described embodiments in detail with reference to several examples.
Example 1
As shown in fig. 5A and 5B, the control system of example one includes a current meter 4 (i.e., a collecting device), a first detecting device 1301. The first detection means 1301 comprises a first control unit 4. The ammeter is used for detecting a plurality of current values flowing through the filter-pressing feeding pump within a set time period and sending the plurality of current values to the first control unit 4.
In some embodiments, the length of the set time period and the start of the time period may be preset based on the total length of time that the filter press is being fed. The setting of the time period is obtained by experimental data, and the time period length may be set to 2000s, for example. The first control unit 4 is configured to: receiving the plurality of current values over the first time period; calculating a current average value based on at least the length of the first time period and the plurality of current values; and triggering a feed end signal when the average value of the current is lower than a first set value.
In some embodiments, the first set point is obtained from empirical values or from experimental data, for example, the first set point is set to 55A.
The operation of the first detection device 1301 is described below with reference to fig. 5B.
The filter press system in fig. 5B includes a filter press 1, a filter press feed 2, a filter press feed pump 3, and a control system 100. The control system 100 in turn comprises a current meter (i.e. a collecting device) and a first control unit 4, which first control unit 4 may be a PLC controller.
The filter pressing feeding pump 3 pumps the materials in the filter pressing feeding barrel 2 into the filter press 1 under the control of the PLC controller, and the filter press 1 performs a series of operations of the filter press under the control of the PLC controller, wherein the operations can comprise manual/automatic operation, program starting, loosening, plate taking, plate pulling, pressing, feeding ending, pressing, blowing, pausing and the like, and refer to fig. 1. Wherein, when judging whether the feeding finishes, the PLC controller of this disclosed embodiment can judge the feeding according to the electric current is ended logic automatically, changes the process brief and states: the end-of-feed signal is triggered when the average value of the current flowing through the filter feed pump 3 during a set time is lower than a set current value (i.e. the first set value in the present example described above). In some embodiments, the setting time and the setting current may be obtained according to a statistical analysis of data, which is not described herein in detail.
Example two
As shown in fig. 6A and 6B, the second example, the collecting device includes a feed flow meter, and the second detecting device 1302 includes the second control unit 4. The filter press of the present example further includes a filter press feed pump 3, a filter press feed barrel 2, and the like.
The feed flowmeter 5 is connected in series with the filter-press feed pump 3 to count a plurality of flow values flowing into the filter-press feed barrel 2.
The second control unit 4 shown in this example is for: receiving a plurality of flow values; comparing a plurality of flow values with the second set flow value; and triggering a feeding end signal when one of the plurality of flow values is smaller than the second set flow value.
The operation of the first detecting device 1302 is described below with reference to fig. 6B.
The filter press system of fig. 6B includes a filter press 1, a filter press charging basket 2, a filter press charging pump 3, and a control system. The control system further includes a feed flow meter (i.e., a collection device) and a second detection device 1302. The second detection device 1302 comprises a second control unit 4 (e.g. a PLC controller) and a feed flow meter 5 (i.e. a pick-up device).
The filter press feed pump 3 pumps the material in the filter press feed barrel 2 into the filter press 1 under the control of the second control unit 4 (i.e., PLC controller), and the filter press can perform a series of operations of the filter press under the control of the second control unit 4, for example, the operations may include manual/automatic, program start, release, plate taking, plate pulling, pressing, feeding end, pressing, blowing, pausing, and the like. In the disclosed example, the second control unit 4 (i.e., the PLC controller) may automatically determine the feeding end logic according to the feeding flow, and the process is briefly described as follows: when the filter press 1 feeds back a signal to the second control unit 4 (i.e., a PLC controller) to be in a compression state, the flow rate detected by the material inlet flow meter 5 in real time is smaller than a certain set value (i.e., a second set flow rate value), and a material inlet end signal is triggered. In some embodiments, the lower flow set point (i.e., the second set flow value) can be determined experimentally, and the feed can be terminated when the feed flow is less than the set point, indicating that the filter press feed is already saturated.
Example three
As shown in fig. 7A and 7B, in the present example, the collecting means includes a filtrate flowmeter, and the third detecting means 1303 includes a third control unit 4, wherein a filtrate flowmeter 6 is connected in series to a path between the filtrate tank outlet and the filtrate tank 5 to monitor a single filtrate flow rate value.
In this example, the third control unit 4 is configured to: receiving the plurality of filtrate flow values; comparing the filtrate flow value with a set third flow value; and when the filtrate flow value is smaller than the third flow value, triggering a feeding end signal.
The operation of the third detecting device 1303 is described below with reference to fig. 7B.
The application of the filter press system comprises a filter press 1, a filter press feeding barrel 2, a filter press feeding pump 3 and a control system. The control system in turn comprises a filtrate flow meter 6, i.e. a collecting device, and a third detecting device 1303. The third detecting device 1303 includes a third control unit 4 (i.e., a PLC controller).
The filter press feed pump 3 pumps the material in the filter press feed tank 2 into the filter press 1 under the control of the third control unit 4 (i.e., PLC controller), and the filter press can perform a series of operations of the filter press under the control of the third control unit 4, for example, the operations may include manual/automatic, program start, release, plate taking, plate pulling, pressing, feeding end, pressing, blowing, pausing, and the like. In this example, the third control unit 4 (i.e., the PLC controller) may further automatically determine the feeding end logic according to the filtrate flow, and the process is as follows: when the signal fed back to the third control unit 4 (i.e., the PLC controller) by the filter press 1 is in the feeding state, the flow rate detected by the filtrate flow meter 6 in real time is smaller than a certain set value (i.e., a third flow rate value), and a feeding end signal is triggered. The lower limit set value (i.e. the third flow value) of the filtrate flow is obtained according to experiments, and when the filtrate flow is smaller than the set value, the filter pressing filtrate is very little, and the feeding can be finished.
Example four
As shown in fig. 8A and 8B, the capturing apparatus of the present example includes a video information capturing apparatus, and the third detecting apparatus 1303 includes an image recognizing unit 7 and a fourth control unit 4. The video information acquisition device 5 is used for acquiring the flow rate of the filtrate at the filtrate outlet and sending the filtrate flow rate image data to the image recognition unit 7. In some embodiments, the third detecting device 1303 further includes a switch 6.
The image recognition unit 7 is configured to: and acquiring the dropping water non-line time of the filtrate according to the filtrate flow velocity image data, and sending a signal to the fourth control unit 4 at the time so as to enable the fourth control unit 4 to generate a trigger feeding end signal.
The operation of the third detecting device 1303 is described below with reference to fig. 8B.
The filter press system of the present example includes a filter press 1, a filter press charging barrel 2, a filter press charging pump 3, and a control system. The control system further comprises a camera (i.e. a collecting device) and a third detecting device 1303. The third detecting device 1303 includes a fourth control unit 4 (i.e., PLC controller) switch 6, an image recognition server 7.
The filter press feeding pump 3 feeds the material in the filter press feeding barrel 2 into the filter press 1 under the control of the fourth control unit 4 (i.e., PLC controller), and the filter press 1 may perform a series of operations of the filter press under the control of the third control unit 4, for example, such operations may include manual/automatic, program start, release, plate taking, plate pulling, pressing, feeding end, pressing, blowing, pausing, and the like. In this example, the video information collected by the camera 5 is uploaded to the image recognition server 7 through the switch 6. The image recognizer 7 judges whether the feeding is finished or not through big data analysis, for example, the moment when the dropping water of the filtrate is not in line is obtained according to the filter flow rate image data and is in the feeding finished stage. When the feeding end stage is reached, the image recognition server 7 sends a signal to the fourth control unit 4 (i.e., the PLC controller) to control the feeding end.
Example five
As shown in fig. 9A and 9B, the collecting device of the present example includes a filtrate tank level meter 5, and the fourth detecting device 1304 includes a fifth control unit 4. The filtrate tank position meter 5 is arranged at the outlet of the filtrate tank to detect and output the liquid level value of the filtrate tank.
The fifth control unit 4 is configured to: receiving a liquid level value measured by the filtrate tank position meter 5; comparing the level value with a set level value; and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
The operation of the fourth detecting device 1304 will be described with reference to fig. 9B.
The filter press system of the present example includes a filter press 1, a filter press charging barrel 2, a filter press charging pump 3, and a control system. The control system in turn comprises a filtrate tank level gauge 5 (acquisition means) and a fourth detection means 1304. The fourth detection means comprises a fifth control unit 4 (i.e. a PLC controller).
The filter press feeding pump 3 feeds the material in the filter press feeding barrel 2 into the filter press 1 under the control of the fifth control unit 4 (i.e., PLC controller), and the filter press 1 may perform a series of operations of the filter press under the control of the third control unit 4, for example, such operations may include manual/automatic, program start, release, plate taking, plate pulling, pressing, feeding end, pressing, blowing, pausing, and the like. In this example, the fifth control unit 4 automatically determines the feeding end logic according to the filtrate tank liquid level, and the process is as follows: when the signal fed back to the third control unit 4 (i.e. the PLC controller) by the filter press 1 is in a feeding state, the liquid level detected by the filtrate tank level gauge 5 in real time is less than a certain set value (i.e. a set level value), and a feeding end signal is triggered. The set value of the liquid level (i.e. the set level value) is found experimentally. The feed can be ended when the liquid level is less than the set point, indicating that there is little filtrate from the press filtration.
Example six
As shown in fig. 10A and 10B, the capturing apparatus of the present example is the video information capturing apparatus 5, and the fourth detecting apparatus 1304 includes the image recognizing unit 7 and the fourth control unit 4. In some embodiments, video capture device 5 is a camera. The video information acquisition device 5 is used for acquiring liquid level data of the filtrate tank and sending the filtrate data to the image identification unit 7.
The image recognition unit 7 is configured to: receiving the level value; comparing the level value with a set level value; and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
The operation of the fourth detecting device 1304 will be described with reference to fig. 10B.
The filter press feeding pump 3 feeds the material in the filter press feeding barrel 2 into the filter press 1 under the control of the fourth control unit 4 (i.e., PLC controller), and the filter press 1 may perform a series of operations of the filter press under the control of the third control unit 4, for example, such operations may include manual/automatic, program start, release, plate taking, plate pulling, pressing, feeding end, pressing, blowing, pausing, and the like. In this example, the video information collected by the camera 5 is uploaded to the image recognition server 7 through the switch 6. The image identifier 7 is subjected to big data analysis to determine whether it is now the end of feed stage, for example, according to the end of feed stage when the level value is less than the set level value. When the feeding end stage is reached, the image recognition server 7 sends a signal to the fourth control unit 4 (i.e., the PLC controller) to control the feeding end.
As shown in fig. 11, the embodiment of the present disclosure further provides a monitoring device 270, which includes a storage 260, a processor 261, a computer program stored in the storage and executable on the processor, and the processor 261, when executing the computer program, implements the method for detecting the feeding state of the filter press machine (i.e., at least can implement the method illustrated in at least one of fig. 4-10A and 10B).
Some embodiments of the disclosure can judge that feeding is finished according to current, the mounting positions of the feeding flow meters of some embodiments of the disclosure are in series connection, and the feeding flow meters are vertical to the ground after the feeding pump; some embodiments of the present disclosure may determine feed end based on feed flow; filtrate flow meters of some embodiments of the present disclosure are installed in series, and after being fed into a feed pump, are vertical to the ground; the feeding end can be judged according to the flow of the filtrate; some embodiments of the present disclosure may include a filtrate tank level gauge mounted at the filtrate tank outlet; some embodiments of the present disclosure may determine feed end based on filtrate tank liquid level; the mounting position of the camera of some embodiments of the present disclosure may be directly opposite to the chute, wherein the camera is a camera with a lighting lamp; some embodiments of the present disclosure may determine the end of feeding by detecting the filtrate tank liquid level using image recognition or by detecting a filtrate drip non-linear using image recognition.
Claims (10)
1. A control system is characterized by comprising a collecting device and a detecting device;
the collecting device is used for collecting the feeding state of the filter press;
the detection device is used for:
receiving the feed condition; and
and judging the feeding end state of the filter press at least based on the feeding state, and sending a trigger signal when the feeding end state.
2. The control system of claim 1, wherein the parameter related to the feed condition comprises a value of current flowing through a filter press feed pump, a feed flow rate, a filtrate flow rate, or a filtrate tank location;
the detection device at least comprises one or more of the following detection units:
first detecting means for detecting the end state by the current value;
a second detecting device for detecting the end state through the feed flow;
third detection means for acquiring the end state from the filtrate flow rate; and
fourth detecting means for acquiring the end state by the filtrate tank level change.
3. The control system of claim 2, wherein the acquisition device comprises an ammeter, and the first detection device comprises a first control unit;
the ammeter is used for detecting a plurality of current values flowing through the filter-pressing feeding pump within a set time period and sending the current values to the first control unit;
the first control unit is configured to:
receiving the plurality of current values over the first time period;
calculating a current average value based on at least the length of the first time period and the plurality of current values; and
when the average value of the current is lower than a first set value, a feeding end signal is triggered.
4. The control system of claim 2, wherein said collecting means is a feed flow meter and said second detecting means comprises a second control unit;
the feeding flowmeter is connected with the filter-pressing feeding pump in series so as to count a plurality of flow values flowing into the filter-pressing feeding barrel;
the second control unit is configured to:
receiving the plurality of flow values;
comparing the plurality of flow rate values to the second set flow rate value; and
and when one of the plurality of flow values is smaller than the second set flow value, triggering a feeding end signal.
5. The control system of claim 2, wherein the collection device comprises a filtrate flow meter;
the third detection means comprise a third control unit, wherein,
the filtrate flow meter is connected in series on a path between a filtrate tank outlet and the filtrate tank to monitor a single filtrate flow value;
the third control unit is configured to:
receiving the plurality of filtrate flow values;
comparing the filtrate flow value with a set third flow value; and
and when the filtrate flow value is smaller than the third flow value, triggering a feeding end signal.
6. The control system of claim 2, wherein the acquisition device comprises a video information acquisition device, and the third detection device comprises: an image recognition unit and a fourth control unit;
the video information acquisition device is used for acquiring the flow rate of filtrate at a filtrate outlet and sending the filtrate flow rate image data to the image identification unit;
the image recognition unit is configured to: and acquiring the time when the dropping water of the filtrate does not line according to the flow velocity image data of the filtrate, and sending a signal to the fourth control unit at the time so that the fourth control unit generates a signal for triggering the feeding to end.
7. The control system of claim 2, wherein the collection means comprises a filtrate tank level gauge and the fourth detection means comprises a fifth control unit;
the filtrate tank meter is arranged at the outlet of the filtrate tank to detect and output the level value of the filtrate tank;
the fifth control unit is configured to:
receiving the level value;
comparing the level value with a set level value; and
and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
8. The control system of claim 2, wherein the acquisition device comprises a video information acquisition device, and the fourth detection device comprises: an image recognition unit and a fourth control unit;
the video information acquisition device is used for acquiring liquid level data of a filtrate tank and sending the filtrate data to the image identification unit;
the image recognition unit is configured to:
receiving the level value;
comparing the level value with a set level value; and
and when the liquid level value is smaller than the set liquid level value, triggering a feeding end signal.
9. A method for detecting the feeding state of a filter press comprises the following steps,
collecting the state parameter values when the filter press is fed, wherein the state parameter at least comprises one of the following parameters: the current value, the feeding flow, the filtrate flow speed and the filtrate groove position of the filter pressing feeding pump are measured;
comparing the state parameter value with a set value; and
and when the state parameter value is smaller than the set value, triggering a feeding end signal.
10. A monitoring device comprising a memory, a processor storing a computer program on said memory and executable on said processor, characterized in that said processor implements the method of claim 9 when executing said program.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804022A (en) * | 2020-09-04 | 2020-10-23 | 天津中新智冠信息技术有限公司 | Filter press feeding control method, device, equipment, storage medium and system |
| CN113730970A (en) * | 2021-09-28 | 2021-12-03 | 平顶山中选自控系统有限公司 | A intelligent monitoring devices of rivers and pressure filter feeding control system for coal washing |
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| CN114917631A (en) * | 2022-05-16 | 2022-08-19 | 中国矿业大学(北京) | Feeding control system and method based on filter cake thickness |
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