CN114405156A - Control method and control system of coal slime water pressure filter - Google Patents
Control method and control system of coal slime water pressure filter Download PDFInfo
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- CN114405156A CN114405156A CN202210093020.2A CN202210093020A CN114405156A CN 114405156 A CN114405156 A CN 114405156A CN 202210093020 A CN202210093020 A CN 202210093020A CN 114405156 A CN114405156 A CN 114405156A
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- pressure filter
- moisture
- filter
- coal slime
- water pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/17—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a control method and a control system of a slime water pressure filter, wherein the method comprises the following steps: acquiring historical working data of the pressure filter, wherein the historical working data comprises feeding flow, feeding concentration, working pressure, main shaft rotating speed, discharging period and discharged product moisture at the same moment in a historical time period; obtaining a discharged material product moisture model of the pressure filter according to the historical working data; acquiring an actual moisture value of a discharge product of the pressure filter; and determining a control strategy of the pressure filter according to the discharged product moisture model and the actual moisture value. According to the scheme of the invention, the discharged material product moisture model is established, the set value of the adjustment parameter can be predicted through the model, and the closed-loop control of the coal slime moisture is realized.
Description
Technical Field
The invention relates to the technical field of slime water treatment equipment, in particular to a control method and a control system of a slime water pressure filter.
Background
At present, a pressure filter is a fine coal slime dehydration device commonly used in coal preparation plants, and aims to realize the separation of coal and water to the maximum extent, improve the quality of coal and recycle recovered water. The structure and the working principle of the pressure filter are as follows: the filter is placed in a closed pressurizing bin, when slime water is fed into a filter tank body by a feeding pump, compressed air with certain pressure is filled in the pressurizing bin, a pressure difference is formed between a control head and a steam-water separator communicated with the atmosphere on a green disc, liquid in the tank body is discharged through a filtering medium immersed in suspension liquid under the action of the pressure in the pressurizing bin, and solid particles are collected on the filtering medium (filter cloth) to form a filter cake. With the rotation of the filter disc, filter cakes are discharged into a conveyer in a discharging area after being further dried and dewatered, three continuous processes of filtering, drying and falling are completed, the device can continuously work, has large handling capacity and low product moisture, and is widely applied to coal preparation plants.
The filter disc is generally composed of a plurality of filter fans, the filter fans are fixed on the main shaft by bolts, pressing strips and pressing plates, and each filter fan is an independent filter unit. The filter plate is a hollow structure made of light metal or plastic, and a circular tube in the inner cavity of the filter plate is communicated with a filtrate hole of the main shaft. The outside of the filter plate is wrapped with filter cloth. The control head is fixed at two ends of the main shaft and divides the filtering process into three areas of filtering, drying and blowing. In different areas, the filtering fan is respectively connected with the atmosphere and the back blowing. After the large tank is filled with a certain pressure, when the filter disc rotates clockwise, the filter disc passes through the filtering area, the drying area and the filter cake falling area in sequence, so that each filter fan is connected with different areas. When the filter fan is positioned in the filter area, the filter fan is communicated with the atmosphere, coal slurry moves to the filter cloth under the pressure of the large tank, and coal particles form a filter cake on the filter cloth; the filtrate enters the inner cavity of the filter fan through the filter cloth and is discharged through the filtrate hole of the main shaft, so that the filtration is realized. When the filter fan is in the drying zone, it is still connected to the atmosphere, but at this point the filter fan is already out of the level of the coal slurry. At this time, the high-pressure air in the large tank is discharged to the atmosphere through the gaps among the filter cake coal particles, and takes away the moisture among the gaps of the coal particles, so that the moisture of the filter cake is further reduced. The existing pressure filter can not realize automatic adjustment usually, and depends on manual operation, so that the efficiency is low and the accuracy is also influenced.
Disclosure of Invention
The invention aims to solve the technical problem that the existing coal slime water pressure filter cannot realize automatic accurate control, and therefore, the invention provides a control method and a control system of the coal slime water pressure filter.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a control method of a slime water pressure filter, which comprises the following steps:
acquiring historical working data of the pressure filter, wherein the historical working data comprises feeding flow, feeding concentration, working pressure, main shaft rotating speed, discharging period and discharged product moisture at the same moment in a historical time period;
obtaining a discharged material product moisture model of the pressure filter according to the historical working data;
acquiring an actual moisture value of a discharge product of the pressure filter;
and determining a control strategy of the pressure filter according to the discharged product moisture model and the actual moisture value.
Optionally, in the above method for controlling a coal slime water pressure filter, the step of obtaining a moisture model of a discharge product of the pressure filter according to the historical operating data includes:
and training the historical working data by using a machine learning algorithm, and taking the trained machine learning algorithm as the discharged material product moisture model.
Optionally, in the above method for controlling a coal slime water pressure filter, the step of obtaining a moisture model of a discharge product of the pressure filter according to the historical operating data includes:
in the process of training the historical working data by using the machine learning algorithm, the feeding flow, the feeding concentration, the working pressure, the discharging period and the discharging product moisture at any moment in a historical time period are used as input samples, and the main shaft rotating speed at the same moment is used as an output sample for training.
Optionally, in the above method for controlling a coal slime water pressure filter, the step of obtaining a moisture model of a discharge product of the pressure filter according to the historical operating data includes:
the machine learning algorithm comprises a least squares support vector machine algorithm or a BP neural network algorithm.
Some embodiments of the present invention further provide a control system for a coal slime water pressure filter, which is used for controlling the coal slime water pressure filter, and includes at least one processor and at least one memory, where at least one of the memories stores program information, and after the at least one processor reads the program information, the at least one processor executes any one of the above control methods for the coal slime water pressure filter.
Optionally, the above control system of the coal slime water pressure filter further includes an electromagnetic flowmeter, wherein:
the coal slime water pressure filter is connected with the feeding pump, electromagnetic flowmeter set up in on the discharging pipeline of feeding pump, electromagnetic flowmeter detects the pan feeding flow will the pan feeding flow send to the treater.
Optionally, the above-mentioned control system of coal slime water pressure filter, still include the ore pulp concentration meter, wherein:
the ore pulp concentration meter set up in on the discharging pipeline of feeding pump, the ore pulp concentration meter detects the pan feeding concentration will the pan feeding concentration sends to the treater.
Optionally, the control system of the coal slime water pressure filter further includes a moisture meter:
the coal slime water pressure filter is connected with a discharging device, and the water content meter is arranged in the discharging device; the moisture meter is configured to detect the blowdown product moisture and send the blowdown moisture to the processor.
Optionally, in the control system of the coal slime water pressure filter, the coal slime water pressure filter further includes a pressure filter tank, a filtering device and a conveying device;
the feeding device is connected to one side of the filter-pressing tank;
a supporting plate is arranged at the lower end of the filter-pressing tank, a pressurizing bin is arranged in the filter-pressing tank, and a scraper conveyor is arranged in the pressurizing bin;
the filtering device is arranged in the pressurizing bin and comprises a filtering machine and a plurality of filtering discs, and the plurality of filtering discs are rotatably connected with the filtering machine;
the discharging device is connected to one side of the scraper conveyor.
Optionally, in the control system of the coal slime water pressure filter, the discharge device includes a discharge upper bin and a discharge pipe, the discharge upper bin is communicated with the scraper, and the discharge pipe is arranged at the lower end of the discharge upper bin and is communicated with the discharge upper bin; the discharging upper bin receives a filter cake which is output by the coal slime water pressure filter and is formed by a filter medium, and the filter cake is intermittently discharged after reaching a set amount.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
the invention provides a control method and a control system of a coal slime water pressure filter, which establish a mathematical model of product water of the pressure filter through the accumulation of historical data of the feed flow rate, feed concentration, working pressure, main shaft rotating speed, discharge period and discharge product water of the pressure filter, predict the set value of an adjusting parameter according to the actual water value of the discharge product of the pressure filter and the mathematical model, and adjust the control system of the pressure filter according to the predicted set value of the adjusting parameter, thereby realizing the closed-loop control of the coal slime water.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a control method of a coal slime water pressure filter according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a mathematical model predictive tuning parameter for a pressure filter according to one embodiment of the present invention;
FIG. 3 is a block diagram of a control system of a coal slime water pressure filter according to an embodiment of the invention;
FIG. 4 is a schematic front view of a coal slime water pressure filter according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a side view of a coal slime water pressure filter according to an embodiment of the invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides a control method of a slime water pressure filter, which can be applied to a control system of the slime water pressure filter, and as shown in fig. 1, the method comprises the following steps:
s101: and acquiring historical working data of the pressure filter, wherein the historical working data comprises the feeding flow, the feeding concentration, the working pressure, the main shaft rotating speed, the discharging period and the discharged product moisture at the same moment in a historical time period. The historical operating data may be the result of collecting operating condition data from the pressure filter over the previous months. In particular, various parameters can be acquired by various sensors arranged in the pressure filter system.
S102: and obtaining a discharged material product moisture model of the pressure filter according to the historical working data. According to the simulation of historical working data, the relationship among the parameters can be obtained, the corresponding relationship among the feeding flow, the feeding concentration, the working pressure, the main shaft rotating speed, the discharging period and the discharging product moisture of the pressure filter in normal working can be obtained, and whether the influence of each parameter on the discharging product moisture can improve the moisture of the discharging product by adjusting the main shaft rotating speed or not can be obtained.
S103: and acquiring the actual moisture value of the discharge product of the pressure filter.
S104: and determining a control strategy of the pressure filter according to the discharged product moisture model and the actual moisture value. During concrete realization, can preset the moisture scope that the pressure filter discharged the material product, when the moisture of arranging the material product was less than the lower limit of settlement or was higher than the upper limit of settlement, according to pressure filter's row material product moisture model gives the automatic adjustment strategy, arranges the material product moisture model and counts out the corresponding relation between each parameter based on historical data, consequently when the actual moisture value of arranging the material product was too high or low excessively, can determine suitable adjustment strategy, is close to the setting value with the actual moisture value that realizes arranging the material product after adjusting each parameter wherein to realize the closed-loop control of coal slime moisture.
In some preferred embodiments, in step S102, the historical working data is trained by using a machine learning algorithm, and the trained machine learning algorithm is used as the moisture model of the discharged material product. Specifically, as shown in fig. 2, in the process of training the historical working data by using the machine learning algorithm, the feeding flow rate, the feeding concentration, the working pressure (pressure of the pressurized bin), the discharging period and the discharged product moisture at any time in the historical time period are used as input samples, and the spindle rotation speed at the same time is used as an output sample for training. The machine learning algorithm comprises a least squares support vector machine algorithm or a BP neural network algorithm. The corresponding relation between the parameters can be simulated more accurately through the machine learning algorithm, and the least square support vector machine algorithm or the BP neural network algorithm is widely applied and has better theoretical basis.
As shown in fig. 3, an embodiment of the present invention further provides a control system for a coal slime water pressure filter, which is used for controlling the coal slime water pressure filter, and includes at least one processor 201 and at least one memory 202, where at least one of the memories 202 stores program information, and after reading the program information, at least one of the processors 201 executes the control method for the coal slime water pressure filter according to the above method embodiment.
FIG. 4 is a schematic view of a main structure of a pressurized filter for slime provided by an embodiment of the present invention, FIG. 5 is a schematic view of a side structure of the pressurized filter for slime, as shown in FIGS. 4 and 5, the pressurized filter for slime 2 includes or is connected with a filter-pressing tank 7, a filtering device, a discharging device, a conveying device 6 and a feeding device, the feeding device is connected to one side of the filter-pressing tank 7, a supporting plate 12 is disposed at the lower end of the filter-pressing tank 7, the filter-pressing tank 7 and the supporting plate 12 are fixedly connected with each other, a pressurized bin 1 is disposed inside the filter-pressing tank 7, the filtering device is mounted inside the pressurized bin 1, the filtering device includes a filter 2 and a plurality of filter discs 19, the filter discs 19 are rotatably connected with the filter 2, a scraper 3 is further disposed inside the pressurized bin 1, the scraper 3 is mounted at the lower end of the filter 2, the discharge device is connected in one side of scraping trigger 3, discharge device is including arranging material upper bin 4 and row material pipe 5, arranges material upper bin 4 and scrape and communicate each other between the trigger 3, arranges material pipe 5 and sets up the lower extreme at row material upper bin 4, arranges material upper bin 4 and arranges and communicate each other between the material pipe 5, and the filter cake is collected discharge device's upper bin by scraping trigger 3 in, continuous operation like this, after reaching a certain amount, by discharge device intermittent type discharge. The control system of the slime water pressure filter also comprises a moisture meter, wherein the moisture meter is arranged in the discharging device; the moisture meter is configured to detect the blowdown product moisture and send the blowdown moisture to the processor 201.
As shown in the figure, conveyor 6 connects the lower extreme at row material pipe 5, and conveyor 6 adopts the cast stone groove to scrape any one of trigger or conveyer, can transmit exhaust material, is provided with first connecting pipeline 13 on arranging material pipe 5, arranges and communicates each other between material pipe 5 and this first connecting pipeline 13, is connected with air inlet mechanism in connecting pipeline's lower extreme one side, the pan feeding device is including entering material pond 14 and discharge pipe 16, communicates each other between discharge pipe 16's one end and the pan feeding pond 14, discharge pipe 16's the other end with communicate each other between pressure filtration jar 7, is connected with into material pump 15 in one side of entering material pond 14, interconnect between pan feeding pump 15 and the discharge pipe 16, install electromagnetic flowmeter 17 and ore pulp concentration meter 18 on the discharge pipe 16. The electromagnetic flow meter detects the feeding flow 17 and sends the feeding flow to the processor 201, and the pulp concentration meter 18 detects the feeding concentration and sends the feeding concentration to the processor 201.
As shown in fig. 4 and 5, an air-water separator 21 is disposed on one side of the lower end of the filter-pressing tank 7, the air-water separator 21 is connected with the distribution head mounted on the filter disc 19 through two second connecting pipelines 22, a cleaning device 27 is mounted on one side of the filter-pressing tank 7, a cleaning water pipe 11 is disposed on the lower end of the cleaning device 27, the cleaning water pipe 11 is communicated with the cleaning device 27, so as to clean the interior of the filter-pressing tank 7, the air intake mechanism includes a first air intake pipeline 10 and a high-pressure fan 9, one end of the first air intake pipeline 10 is connected with the high-pressure fan 9, the other end of the first air intake pipeline 10 is communicated with the first connecting pipeline 13, a back-blowing device 20 is further mounted on one side of the filter-pressing tank 7, a second air intake pipeline 23 is connected to one side of the back-blowing device 20, one end of the second air intake pipeline 23 is connected with a low-pressure fan 24, the second air inlet pipeline 23 is provided with a pneumatic adjusting valve 25 and a manual adjusting valve 26, and the pressure of the back blowing is generally 0.05Mpa higher than that of the filter pressing tank 7 for blowing off the filter cakes.
The solution described in the above embodiment can automatically adjust the pressure filter 2 by the following steps: step 1: establishing a discharged product moisture model of the product moisture of the pressure filter 2: an electromagnetic flowmeter 17 and an ore pulp concentration meter 18 are arranged on a discharge pipeline 16 of a feeding pump 15 of the pressure filter 2; step 2: measuring the feeding flow, feeding concentration, working pressure, main shaft rotating speed, discharging period and accumulation of discharged product moisture data of the pressure filter 2 through an electromagnetic flowmeter 17 and an ore pulp concentration meter 18, and establishing a discharged product moisture model of the product moisture of the pressure filter 2 according to the data; and step 3: setting the moisture range of the discharged product of the pressure filter 2; and 4, step 4: when the moisture of the discharged product is lower than the set lower limit or higher than the set upper limit, an automatic adjustment strategy is given according to a discharged product moisture model of the product moisture of the pressure filter 2; and 5: the set value of the adjustment parameter can be predicted through the established discharge product water model of the product water of the pressure filter 2, and the control system 28 of the pressure filter 2 adjusts according to the predicted set value of the adjustment parameter, thereby realizing the closed-loop control of the coal slime water.
The common adjustment parameter for adjusting the moisture of the discharged product of the pressure filter 2 is the rotating speed of the main shaft, when the moisture of the product exceeds a set range, the set value of the rotating speed of the main shaft can be predicted through a mathematical model of the moisture of the product, the rotating speed of the main shaft is adjusted according to the predicted set value, when the moisture of the product exceeds the set range, the set value of the rotating speed of the main shaft can be predicted through the mathematical model of the moisture of the product, and the rotating speed of the main shaft is adjusted according to the predicted set value.
The working mode is as follows: the pressure filter 2 is that the filter 2 is arranged in a closed pressure tank, and a discharge device is arranged at the head of the filter 2; the suspension to be filtered is fed into the tank body of the filter 2 by a feeding pump 15, compressed air with certain pressure is filled in a pressurizing tank, a pressure difference is formed between the pressure tank and a steam-water separator communicated with the atmosphere through a distribution head on a filter disc 19, liquid in the tank body is discharged through a filter medium immersed in the suspension under the action of the pressure in a filter pressing tank 7, solid particles are collected on the filter medium to form a filter cake, the filter cake is discharged into a scraper machine 3 in a discharging area after being dried and precipitated along with the rotation of the filter disc 19, and the filter cake is collected into an upper bin of a discharging device by the scraper machine 3. The continuous operation is realized, after a certain amount of water is obtained, the water is discharged intermittently by the discharging device, and the influence factors of the water discharged by the pressure filter 2 mainly comprise: the working pressure of the pressurizing bin 1, the rotating speed of the main shaft, the concentration and the granularity composition of the fed ore pulp and the like. Under otherwise identical conditions: the higher the pressure in the pressurizing chamber 1, the greater the pressure difference across the cake, the easier the cake suction, the greater the throughput, the lower the product moisture, but the higher the solids content in the filtrate. The output is low and the moisture is low when the rotating speed of the main shaft is low; the high rotation speed of the main shaft results in high yield and high water content. The fed ore pulp has high concentration, high yield and high moisture; and the fed ore pulp has low concentration, low yield and low moisture. The fine particle size of the fed ore pulp is high, so that the yield is low and the moisture is high; and if the fine particle size content of the slurry is low, the yield is high and the moisture is low.
According to the scheme of the embodiment of the invention, the discharge product moisture model of the product moisture of the pressure filter 2 is established, and the closed-loop control of the coal slime moisture is realized. The processor 201 has a corresponding relationship between the detected data of the sensors (such as the feeding concentration, the feeding flow rate, the working pressure, the discharging period and the moisture of the discharged product) acquired in real time and the rotation speed of the main shaft, and has an adjustment strategy for each parameter to adjust the speed of the main shaft according to a set direction, so as to adjust the moisture of the discharged product.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (10)
1. A control method of a coal slime water pressure filter is characterized by comprising the following steps:
acquiring historical working data of the pressure filter, wherein the historical working data comprises feeding flow, feeding concentration, working pressure, main shaft rotating speed, discharging period and discharged product moisture at the same moment in a historical time period;
obtaining a discharged material product moisture model of the pressure filter according to the historical working data;
acquiring an actual moisture value of a discharge product of the pressure filter;
and determining a control strategy of the pressure filter according to the discharged product moisture model and the actual moisture value.
2. The method for controlling a coal slime water pressure filter as claimed in claim 1, wherein the step of obtaining the moisture model of the discharge product of the pressure filter according to the historical working data comprises:
and training the historical working data by using a machine learning algorithm, and taking the trained machine learning algorithm as the discharged material product moisture model.
3. The method for controlling a coal slime water pressure filter as claimed in claim 2, wherein the step of obtaining the moisture model of the discharge product of the pressure filter according to the historical working data comprises:
in the process of training the historical working data by using the machine learning algorithm, the feeding flow, the feeding concentration, the working pressure, the discharging period and the discharging product moisture at any moment in a historical time period are used as input samples, and the main shaft rotating speed at the same moment is used as an output sample for training.
4. The method for controlling a coal slime water pressure filter as claimed in claim 2 or 3, wherein the step of obtaining the moisture model of the discharge product of the pressure filter according to the historical working data comprises:
the machine learning algorithm comprises a least squares support vector machine algorithm or a BP neural network algorithm.
5. A control system of a coal slime water pressure filter, which is used for controlling the coal slime water pressure filter and is characterized by comprising at least one processor and at least one memory, wherein program information is stored in at least one memory, and the at least one processor executes the control method of the coal slime water pressure filter according to any one of claims 1 to 4 after reading the program information.
6. The control system for the coal slime water pressure filter as set forth in claim 5, further comprising an electromagnetic flow meter, wherein:
the coal slime water pressure filter is connected with the feeding pump, electromagnetic flowmeter set up in on the discharging pipeline of feeding pump, electromagnetic flowmeter detects the pan feeding flow will the pan feeding flow send to the treater.
7. The control system of the coal slime water pressure filter as claimed in claim 6, further comprising a pulp concentration meter, wherein:
the ore pulp concentration meter set up in on the discharging pipeline of feeding pump, the ore pulp concentration meter detects the pan feeding concentration will the pan feeding concentration sends to the treater.
8. The control system of the coal slime water pressure filter as claimed in claim 7, further comprising a moisture meter:
the coal slime water pressure filter is connected with a discharging device, and the water content meter is arranged in the discharging device; the moisture meter is configured to detect the blowdown product moisture and send the blowdown moisture to the processor.
9. The control system of the coal slime water pressure filter as claimed in claim 8, wherein:
the slime water pressure filter also comprises a pressure filter tank, a filtering device and a conveying device;
the feeding device is connected to one side of the filter-pressing tank;
a supporting plate is arranged at the lower end of the filter-pressing tank, a pressurizing bin is arranged in the filter-pressing tank, and a scraper conveyor is arranged in the pressurizing bin;
the filtering device is arranged in the pressurizing bin and comprises a filtering machine and a plurality of filtering discs, and the plurality of filtering discs are rotatably connected with the filtering machine;
the discharging device is connected to one side of the scraper conveyor.
10. The control system of the coal slime water pressure filter as claimed in claim 9, wherein:
the discharging device comprises a discharging upper bin and a discharging pipe, the discharging upper bin is communicated with the scraper conveyor, and the discharging pipe is arranged at the lower end of the discharging upper bin and is communicated with the discharging upper bin; the discharging upper bin receives a filter cake which is output by the coal slime water pressure filter and is formed by a filter medium, and the filter cake is intermittently discharged after reaching a set amount.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116693163A (en) * | 2023-07-21 | 2023-09-05 | 耀昶嵘相变材料科技(广东)有限公司 | Control method, terminal and system of sludge drying system |
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| CN2221998Y (en) * | 1995-07-13 | 1996-03-13 | 煤炭科学研究总院唐山分院 | Pressing filter machine for flotation ore concentrate |
| CN112996582A (en) * | 2018-11-06 | 2021-06-18 | Bhs桑托芬有限公司 | Rotary filter press module |
| WO2020170171A1 (en) * | 2019-02-19 | 2020-08-27 | Flsmidth A/S | System and method for predictive and adaptive filtering and apparatus thereof |
| CN113209679A (en) * | 2021-05-21 | 2021-08-06 | 中国矿业大学(北京) | Intelligent monitoring and optimal control system of plate-and-frame filter press and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116693163A (en) * | 2023-07-21 | 2023-09-05 | 耀昶嵘相变材料科技(广东)有限公司 | Control method, terminal and system of sludge drying system |
| CN116693163B (en) * | 2023-07-21 | 2023-12-05 | 耀昶嵘相变材料科技(广东)有限公司 | Control method, terminal and system of sludge drying system |
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