CN115228158A - Concentration and filter pressing intelligent control system and control method - Google Patents
Concentration and filter pressing intelligent control system and control method Download PDFInfo
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- CN115228158A CN115228158A CN202210866133.1A CN202210866133A CN115228158A CN 115228158 A CN115228158 A CN 115228158A CN 202210866133 A CN202210866133 A CN 202210866133A CN 115228158 A CN115228158 A CN 115228158A
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- filter
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- set value
- liquid level
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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
-
- 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
- B01D25/005—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration by flow measuring
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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
-
- 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
- B01D25/21—Plate and frame presses
-
- 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
- B01D25/32—Removal of the filter cakes
- B01D25/34—Removal of the filter cakes by moving, e.g. rotating, the filter elements
- B01D25/346—Removal of the filter cakes by moving, e.g. rotating, the filter elements by vibration
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an intelligent control system for concentration and filter pressing, which comprises a thickener, wherein an outlet of the thickener is connected with an underflow pump, the underflow pump is connected with an inlet of a stirring barrel, an interface instrument is arranged in the thickener, a liquid level meter is arranged in the stirring barrel, an outlet of the stirring barrel is connected with a feed pump, the feed pump is connected with an inlet of a filter press, a filtrate outlet of the filter press is connected with an inlet of the thickener, a flow meter is arranged at a filtrate outlet of the filter press, a vibration motor and a weighing sensor are arranged on the filter press, and the interface instrument, the underflow pump, the liquid level meter, the feed pump, the filter press, the weighing sensor, the vibration motor and the flow meter are all connected with a control unit. The invention also discloses an intelligent control method for concentration and filter pressing. The intelligent control system and the control method for concentration and filter pressing solve the problem that the existing concentration-filter pressing link is low in automation degree to cause low production efficiency in the treatment of slime water.
Description
Technical Field
The invention belongs to the technical field of coal production and processing, and particularly relates to an intelligent control system for concentration and filter pressing and an intelligent control method for concentration and filter pressing.
Background
Coal is the most important energy in China, and the dominant position of the coal in a primary energy consumption structure cannot be changed in a long time in the future. At present, the relatively mature jigging coal separation and dense medium coal separation are both 'water washing' processes, and a slime water treatment link is a key link of the whole coal separation process. Treating the coal slime water by a concentration-filter pressing link in a coal preparation plant: the slime water is settled in the concentrator, the slime layer at the bottom reaches a certain thickness and then is pumped into the mixing tank through the underflow pump, then the slime water is pumped into a filter press through a feeding pump for filter pressing dehydration, and the filter pressing link is divided into links of feeding, squeezing, discharging and the like, so that the whole concentration-filter pressing link is very complicated. The opening of the underflow pump of the existing thickener usually needs manual judgment according to the underflow concentration and the turbidity of overflow circulating water, the feeding, squeezing and discharging ring sections of a filter press also need post workers to operate according to the field condition, coal slime is often stuck on filter cloth and is difficult to fall off in the discharging process, and manual intervention is needed. The automation level of the whole concentration-filter pressing link is low, the operation is mainly dependent on field workers, the working efficiency and the processing capacity of the whole system are limited, and the labor intensity of the field workers is high.
Disclosure of Invention
The invention aims to provide an intelligent control system for concentration and filter pressing, which solves the problem of low production efficiency caused by low automation degree in the existing concentration-filter pressing link for treating slime water.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a concentrated filter-pressing intelligence control system, includes concentrated machine, the exit linkage of concentrated machine has the underflow pump, the inlet connection of underflow pump and agitator, be provided with interface appearance in the concentrated machine, be provided with the level gauge in the agitator, the exit linkage of agitator has the charge pump, the entry connection of charge pump and pressure filter, the filtrating export of pressure filter and the entry connection of concentrated machine, the filtrating exit of pressure filter is provided with the flowmeter, is provided with on the pressure filter and shakes and shake motor and weighing sensor, interface appearance, underflow pump, level gauge, charge pump, pressure filter, weighing sensor, the motor of shaking and flowmeter are the control unit connection.
As a preferred technical solution of the present invention, the filter press is one of a plate-and-frame filter press and a box-type filter press.
In a preferred embodiment of the present invention, the thickener is one of a swash plate thickener, an inclined tube thickener, a deep cone thickener, and a thickening sedimentation tank.
The invention aims to provide an intelligent control method for concentration and filter pressing, which solves the problem of low production efficiency caused by low automation degree in the existing concentration-filter pressing link for treating slime water.
In order to achieve the purpose, the invention adopts the technical scheme that: an intelligent control method for concentration and filter pressing is implemented according to the following steps:
step 4, when the liquid level of the stirring barrel is greater than a set value Y1, starting a feeding pump by a control unit, starting the filter press to work, and enabling filtrate to flow into a thickener from the filter press;
and 8, when the weight of the filter plate is less than or equal to a set value M0, indicating that the filter cake is completely unloaded, ending the unloading process, and starting the next filter pressing cycle
In a preferred embodiment of the present invention, in step 2, the set value Y1 is 20% of the total volume liquid level of the mixing tank.
In a preferred embodiment of the present invention, in step 3, the set value Y2 is 80% of the total volume liquid level of the mixing tank.
The beneficial effects of the invention are: (1) According to the intelligent control system and the control method for concentration and filter pressing, the defect of low automation level of the conventional concentration-filter pressing link is overcome, sensors such as an interface instrument, a liquid level meter and a flowmeter are added, centralized control of equipment such as a concentrator, a filter press and a feeding pump is realized, and the working efficiency is improved. (2) The intelligent control system and the control method for concentration and filter pressing have the advantages of simple technical process, easiness in operation and suitability for modification of a coal preparation plant, and only the sensors such as an interface instrument, a liquid level meter, a flow meter and the like are needed to be added in the original concentration-filter pressing link, so that the technical scheme is simple to operate, low in equipment investment, low in operation cost, easy to implement and good in market popularization and application prospect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an intelligent control system for concentration and pressure filtration according to the present invention;
FIG. 2 is a schematic diagram of the control of the underflow pump in the intelligent control method for concentration and filter pressing according to the present invention;
FIG. 3 is a control schematic diagram of a feed pump in the intelligent control method for concentration and pressure filtration of the invention.
In the figure: 1. the system comprises a thickener, 2. An interface instrument, 3. An underflow pump, 4. A control unit, 5. A stirring barrel, 6. A liquid level meter, 7. A feeding pump, 8. A filter press, 9. A weighing sensor, 10. A vibrating motor and 11. A flowmeter.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Example 1
As shown in figure 1, the intelligent control system for concentration and filter pressing comprises a concentrator 1, wherein an outlet of the concentrator 1 is connected with an underflow pump 3, the underflow pump 3 is connected with an inlet of a stirring barrel 5, an interface instrument 2 is arranged in the concentrator 1, a liquid level meter 6 is arranged in the stirring barrel 5, an outlet of the stirring barrel 5 is connected with a feed pump 7, the feed pump 7 is connected with an inlet of a filter press 8, a filtrate outlet of the filter press 8 is connected with an inlet of the concentrator 1, a flow meter 11 is arranged at a filtrate outlet of the filter press 8, a vibrating motor 10 and a weighing sensor 9 are arranged on the filter press 8, and the interface instrument 2, the underflow pump 3, the liquid level meter 6, the feed pump 7, the filter press 8, the weighing sensor 9, the vibrating motor 10 and the flow meter 11 are all connected by a control unit.
The thickener 1 and the underflow pump 3, the underflow pump 3 and the stirring barrel 5, the stirring barrel 5 and the feeding pump 7, the feeding pump 7 and the filter press 8, and the filter press 8 and the thickener 1 are all connected through pipelines. The interface instrument 2 is arranged above the thickener 1, the liquid level meter 6 is arranged in the stirring barrel 5, the weighing sensor 9 and the rapping motor 10 are arranged on the filter press 8, and the flowmeter 11 is arranged on a pipeline between the filter press 8 and the thickener 1. The interface instrument 2, the liquid level meter 6, the weighing sensor 9 and the flowmeter 11 are electrically connected with the control unit 4 and feed back data to the control unit 4 in real time. The control unit 4 is electrically connected with the underflow pump 3 and the feed pump 7, and production is adjusted in real time according to sensor data. The filter press 8 is one of a plate-and-frame filter press and a box filter press. The concentrator 1 is one of a sloping plate concentrator, an inclined tube concentrator, a deep cone concentrator and a concentration sedimentation tank.
Example 2
As shown in fig. 1 to 3, the intelligent control method for concentration and pressure filtration of the present invention is specifically implemented according to the following steps:
step 4, when the liquid level of the stirring barrel 5 is greater than a set value Y1, the control unit 4 starts the feeding pump 7, the filter press 8 starts to work, and filtrate flows into the thickener 1 from the filter press 8;
and 8, when the weight of the filter plate is less than or equal to a set value M0, indicating that the filter cake is completely unloaded, ending the unloading process, and starting the next filter pressing cycle.
In the step 2, the set value Y1 is 20% of the total volume liquid level of the stirring barrel 5, and in the step 3, the set value Y2 is 80% of the total volume liquid level of the stirring barrel 5, so that the liquid level of the stirring barrel is controlled to be 20% -80% of the total volume.
Therefore, compared with the prior art, the intelligent control system and the control method for concentration and filter pressing improve the defect of low automation level of the conventional concentration-filter pressing link, increase sensors such as an interface instrument, a liquid level meter and a flowmeter, realize centralized control of equipment such as a concentrator, a filter press and a feeding pump, and improve the working efficiency. In addition, the intelligent control system and the control method for concentration and filter pressing are simple in technical process, easy to operate and suitable for modification of a coal preparation plant, and only sensors such as an interface instrument, a liquid level meter and a flow meter need to be added in the original concentration-filter pressing link, so that the technical scheme is simple to operate, low in equipment investment, low in operation cost, easy to implement and good in market popularization and use prospect.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, and that the invention is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a concentrated filter-pressing intelligence control system, its characterized in that, includes concentrated machine (1), the exit linkage of concentrated machine (1) has underflow pump (3), the entry linkage of underflow pump (3) and agitator (5), be provided with interface appearance (2) in concentrated machine (1), be provided with level gauge (6) in agitator (5), the exit linkage of agitator (5) has charge pump (7), the entry linkage of charge pump (7) and pressure filter (8), the filtrate export of pressure filter (8) and the entry linkage of concentrated machine (1), the filtrate exit of pressure filter (8) is provided with flowmeter (11), is provided with on pressure filter (8) and shakes and shake motor (10) and weighing sensor (9), interface shakes and shakes appearance (2), underflow pump (3), level gauge (6), charge pump (7), pressure filter (8), weighing sensor (9), motor (10) and flowmeter (11) and is the control unit connection.
2. The intelligent control system for concentration and pressure filtration according to claim 1, wherein the pressure filter (8) is one of a plate and frame filter press and a box filter press.
3. The intelligent control system for concentration and filter pressing according to claim 2, wherein the concentrator (1) is one of a sloping plate concentrator, an inclined tube concentrator, a deep cone concentrator and a concentration and sedimentation tank.
4. An intelligent control method for concentration and filter pressing is realized based on the intelligent control system for concentration and filter pressing as claimed in any one of claims 1-3, and is characterized by comprising the following steps:
step 1, an interface instrument (2) monitors the thickness of a coal slime layer at the bottom of a thickener (1) in real time, a liquid level meter (6) monitors the liquid level of a stirring barrel (5) in real time, and the interface instrument and the liquid level meter feed back signals to a control unit (4);
step 2, when the thickness of the coal slime layer at the bottom of the thickener is greater than or equal to a set value H0 and the liquid level in the stirring barrel is less than or equal to a set value Y1, the control unit starts the underflow pump;
step 3, when the thickness of the coal slime layer at the bottom of the thickener (1) is smaller than a set value H0 or the liquid level in the stirring barrel (5) is higher than a set value Y2, the control unit (4) closes the underflow pump (3);
step 4, when the liquid level of the stirring barrel (5) is larger than a set value Y1, the control unit (4) starts the feeding pump (7), the filter press (8) starts to work, and filtrate flows into the thickener (1) from the filter press (8);
step 5, detecting the flow of the filtrate in real time by the flowmeter (11) and feeding the flow back to the control unit (4), when the flow of the filtrate is zero, finishing filter pressing and feeding, and closing the feeding pump (7) by the control unit (4);
step 6, the filter press (8) starts to unload materials, the weighing sensor (9) is installed on a sliding track of a filter plate of the filter press (8), and the weight of each filter plate during unloading is fed back to the control unit (4) in real time;
step 7, when the weight of the filter plate is greater than the set value M0, the filter plate is stuck on the filter cloth, and at the moment, the control unit (4) starts a rapping motor (10) on the track of the filter plate to forcibly unload the material until the weight of the filter plate is less than or equal to the set value M0;
and 8, when the weight of the filter plate is less than or equal to a set value M0, indicating that the filter cake is completely unloaded, ending the unloading process, and starting the next filter pressing cycle.
5. The intelligent concentration, filter-pressing and control method according to claim 4, wherein in the step 2, the set value Y1 is 20% of the total volume liquid level of the stirring barrel (5).
6. The intelligent concentration, filter-pressing and control method according to claim 5, wherein in the step 3, the set value Y2 is 80% of the total volume liquid level of the stirring barrel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866133.1A CN115228158A (en) | 2022-07-22 | 2022-07-22 | Concentration and filter pressing intelligent control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866133.1A CN115228158A (en) | 2022-07-22 | 2022-07-22 | Concentration and filter pressing intelligent control system and control method |
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| CN115228158A true CN115228158A (en) | 2022-10-25 |
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| CN202210866133.1A Pending CN115228158A (en) | 2022-07-22 | 2022-07-22 | Concentration and filter pressing intelligent control system and control method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5167801A (en) * | 1991-06-21 | 1992-12-01 | Ishigaki Mechanical Industry Co., Ltd. | Filter press with cake removing device |
| CA2235404A1 (en) * | 1995-10-20 | 1997-04-24 | United States Filter Corporation | Filter press with weight-responsive bumping of filter plates |
| US5674384A (en) * | 1995-10-20 | 1997-10-07 | Jwi, Inc. | Filter press with weight-responsive bumping of filter plates |
| CN205360712U (en) * | 2016-03-05 | 2016-07-06 | 山西神悦节能技术有限责任公司 | Automatic system of prepareeing material of coal washery pressure filter |
| CN109626460A (en) * | 2019-02-11 | 2019-04-16 | 天津中新智冠信息技术有限公司 | Intelligent slime water treatment method and device |
| CN114634232A (en) * | 2022-03-09 | 2022-06-17 | 山西天地王坡煤业有限公司 | Control method, device, equipment and medium for slime water treatment system |
-
2022
- 2022-07-22 CN CN202210866133.1A patent/CN115228158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5167801A (en) * | 1991-06-21 | 1992-12-01 | Ishigaki Mechanical Industry Co., Ltd. | Filter press with cake removing device |
| CA2235404A1 (en) * | 1995-10-20 | 1997-04-24 | United States Filter Corporation | Filter press with weight-responsive bumping of filter plates |
| US5674384A (en) * | 1995-10-20 | 1997-10-07 | Jwi, Inc. | Filter press with weight-responsive bumping of filter plates |
| CN205360712U (en) * | 2016-03-05 | 2016-07-06 | 山西神悦节能技术有限责任公司 | Automatic system of prepareeing material of coal washery pressure filter |
| CN109626460A (en) * | 2019-02-11 | 2019-04-16 | 天津中新智冠信息技术有限公司 | Intelligent slime water treatment method and device |
| CN114634232A (en) * | 2022-03-09 | 2022-06-17 | 山西天地王坡煤业有限公司 | Control method, device, equipment and medium for slime water treatment system |
Non-Patent Citations (3)
| Title |
|---|
| 付银香: "ORCA声纳界面仪在盐井选煤厂中的应用", 选煤技术, no. 5, pages 48 - 51 * |
| 巩固;: "寺河矿选煤厂浓缩池工况实时监测系统的研究与实践", 矿业安全与环保, no. 06, pages 69 - 71 * |
| 范强强;郑意川;韩腾飞;王亚楠;: "选煤厂煤泥压滤系统自动化控制的研究与应用", 煤质技术, no. 06, pages 71 - 73 * |
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