CN108181871B - Method for controlling filtering device by computer - Google Patents
Method for controlling filtering device by computer Download PDFInfo
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- CN108181871B CN108181871B CN201810053554.6A CN201810053554A CN108181871B CN 108181871 B CN108181871 B CN 108181871B CN 201810053554 A CN201810053554 A CN 201810053554A CN 108181871 B CN108181871 B CN 108181871B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Automation & Control Theory (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a method for controlling a filtering device by a computer. A piston hydraulic cylinder is fixed on the frame, a piston hydraulic rod is arranged on the piston hydraulic cylinder, and a piston is fixed at the lower end of the piston hydraulic rod; the frame is provided with a sliding chute which is fixedly connected with the filter cylinder through a filter cylinder connecting plate, and the lower parts of the filter cylinder connecting plates at two sides are connected with pushing oil cylinders; the lower part of the filter cylinder is provided with a filter plate support frame, the upper part of the filter cylinder is provided with a filter plate, and the lower part of the filter cylinder is provided with a liquid collecting tank; a hydraulic pump station is arranged on one side of the frame; the other side of the frame is provided with a slurry groove, a slurry pump is arranged in the groove, the pump is connected with a grouting pipe, and the upper opening of the pipe is arranged on the outer side of the opening edge of the filtering cylinder. The frame is provided with a controller, a PLC is arranged in the controller, a power switch and a power converter are arranged in the controller, and the PLC is connected with a piston hydraulic cylinder control module, a pushing oil cylinder control module, a hydraulic pump station control module and a slurry pump control module. The invention controls the filtering process automatically through a computer controller. The method is suitable for being used as a method for controlling the filtering device by a computer.
Description
Technical Field
The invention provides a filtering device in the field of machinery, in particular to a method for controlling the filtering device by a computer
Background
The existing filter usually has a plate frame type and a box type, and is used for filtering liquid and carrying out solid-liquid separation. The method has the defects of incomplete solid-liquid separation, filter cloth waste, unclean filtration, manual control, low efficiency and complex operation.
Disclosure of Invention
The invention provides a method for controlling a filtering device by a computer in order to control the filtering device by the computer. The method solves the technical problem of computer control of the filtering device by controlling the filtering action through a computer.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a piston hydraulic cylinder is fixed on the frame, a piston hydraulic rod is arranged in the piston hydraulic cylinder, and a piston is fixed at the lower end of the piston hydraulic rod;
the frame is provided with a chute which is fixedly connected with the filter cylinder through a filter cylinder connecting plate, and the lower parts of the filter cylinder connecting plates at two sides are connected with pushing oil cylinders;
a filter plate support frame is arranged at the lower part of the filter cylinder through a support frame caster, a filter plate is arranged at the upper part of the filter plate support frame, and a liquid collecting tank is arranged at the lower part of the filter plate;
a hydraulic pump station is arranged on one side of the frame;
the other side of the frame is provided with a slurry tank, a slurry pump is arranged in the slurry tank, a grouting pipe is connected on the gun material pump, and the upper opening of the grouting pipe is arranged on the outer side of the opening edge of the filtering cylinder.
The frame is provided with a controller, the controller is internally provided with a PLC, the controller is internally provided with a power switch and a power converter, and the PLC is connected with a piston hydraulic cylinder control module, a pushing oil cylinder control module, a hydraulic pump station control module and a slurry pump control module.
The automatic filter has the advantages that the automatic control of the filtering process is realized through the computer controller, the automation degree is high, the filtering speed is high, and the operation is simple. The method is suitable for being used as a method for controlling filtration by a computer.
Drawings
FIG. 1 is a schematic view of a filter assembly according to the present invention;
fig. 2 is a diagram showing the controller of the present invention.
In the figure, 1, a frame, 2, a piston hydraulic cylinder, 2.1, a piston hydraulic cylinder control module, 3, a piston hydraulic rod, 4, a piston, 5, a filter cylinder, 6, a filter cylinder connecting plate, 7, a sliding chute, 8, a filter plate, 9, a filter plate supporting frame, 10, a supporting frame caster, 11, a liquid collecting tank, 12, a pushing oil cylinder, 12.1, a pushing oil cylinder control module, 13, a pushing rod, 14, a hydraulic pump station, 14.1, a hydraulic pump station control module, 15, a slurry pump, 15.1, a slurry pump control module, 16, a slurry tank, 17, a grouting pipe, 18, a controller, 18.1, a PLC, 18.2, a power switch and 18.3 are included.
Detailed Description
As shown in the figure, the control device structure: a piston hydraulic cylinder 2 is fixed on the frame 1, a piston hydraulic rod 3 is arranged in the piston hydraulic cylinder, and a piston 4 is fixed at the lower end of the piston hydraulic rod;
the frame is provided with a chute 7 which is fixedly connected with the filter cylinder 5 through a filter cylinder connecting plate 6, and the lower parts of the filter cylinder connecting plates at two sides are connected with a pushing oil cylinder 12;
a filter plate support frame 9 is arranged at the lower part of the filter cylinder through a support frame caster 10, a filter plate 8 is arranged at the upper part of the filter plate support frame, and a liquid collecting tank 11 is arranged at the lower part of the filter plate;
a hydraulic pump station 14 is arranged on one side of the frame;
a slurry groove 16 is arranged at the other side of the frame, a slurry pump 15 is arranged in the slurry groove, a grouting pipe 17 is connected on the slurry pump, and the upper opening of the grouting pipe is arranged at the outer side of the opening edge of the filtering cylinder.
The frame is provided with a controller 18, the controller is internally provided with a PLC 18.1, the controller is internally provided with a power switch 18.2 and a power converter 18.3, and the PLC is connected with a piston hydraulic cylinder control module 2.1, a pushing oil cylinder control module 12.1, a hydraulic pump station control module 14.1 and a slurry pump control module 15.1.
Controlling the filtration process with a computer controller:
the PLC of the controller is internally provided with a piston ascending and descending position program, and the program is input through the PLC to enable the piston hydraulic cylinder control module to execute the up-and-down stroke operation.
And a program for pushing the upper dead point and the lower dead point of the oil cylinder is set in a PLC of the controller, and the program is input through the PLC to push an oil cylinder control module to execute the upper dead point and the lower dead point operation.
A hydraulic pump station working program is input into a PLC of the controller, the PLC inputs the program, and a hydraulic pump station control module executes the operation of a hydraulic pump station.
A slurry pump working program is input into a PLC of the controller, and a slurry pump control module executes start-stop operation of the slurry pump by inputting the program through the PLC.
Linkage between control modules: and in the preparation stage before filtration, the slurry pump is started to inject materials into the filter cylinder, a liquid level sensor is arranged on the edge of the opening of the filter cylinder, and when the liquid level sensor senses that the liquid level reaches the end point, the slurry pump is automatically stopped.
When the piston hydraulic rod is pressed down, the hydraulic pump station injects oil into the piston hydraulic cylinder under the instruction of the hydraulic pump station control module to drive the piston hydraulic rod to drive the piston to move downwards until the potential difference is balanced, and at the moment, the oil is pumped reversely, so that the piston hydraulic cylinder returns to the original state, and the operation is one stroke.
When the filter cylinder is moved up and down, the hydraulic pump station is also started to inject oil into the pushing oil cylinder, the filter cylinder is lifted up through the push rod, and when the filter cylinder reaches a set position, the oil is pumped reversely, so that the push rod of the pushing oil cylinder retracts, and the filter cylinder falls onto the filter plate.
The filtering process programming is realized by programming the program in the PLC and the modules act in a linkage manner.
The programming comprises the program control of starting and stopping the slurry pump, the program control of the hydraulic pump station to the piston hydraulic cylinder and the oil injection and return in the pushing oil cylinder and the program of sequential interlocking action.
When filtering, firstly, preparation is carried out before filtering, the piston is lifted up through the controller and leaves the upper opening of the filtering cylinder, then the pushing oil cylinder is retracted through the controller to drive the filtering cylinder to move downwards and be buckled on the filtering plate, slurry to be filtered is pumped into the slurry tank through the pump, then the slurry pump is started to pump the slurry into the filtering cylinder, after the slurry is fully pumped, the piston is pressed downwards through the controller again to extrude the slurry, the liquid part flows out of the filtering plate into the liquid collecting tank under the action of pressure, the solid part is gradually extruded to the bottom of the filtering cylinder until no liquid is discharged, namely the filtering cylinder is positioned at the bottom dead center, at the moment, the piston and the filtering cylinder are lifted up through the controller, a filter cake gap is formed between the filtering cylinder and the filtering plate, and a filter cake is taken out through machinery or manual work, and a filtering task is completed. After one filtration, the computer controller is used repeatedly to control the filtration process, and the preparation stage before filtration is carried out again.
The slurry is a solid-liquid mixed slurry.
According to the requirements of slurry filtration, a solid filter cake or liquid slurry is selected as a finished product.
The method is characterized in that:
the computer controller is installed on the filtering device, wherein the filtering device has innovativeness, and the computer controller is more creative for controlling the filtering process.
The method can realize the automation of the slurry filtration computer control, has high efficiency and is convenient for operation and management.
Claims (1)
1. A method of computer control of a filtration apparatus, characterized by:
the structure of the filtering device is as follows:
a piston hydraulic cylinder (2) is fixed on the frame (1), a piston hydraulic rod (3) is arranged in the piston hydraulic cylinder, and a piston (4) is fixed at the lower end of the piston hydraulic rod;
a sliding chute (7) is arranged on the frame, the sliding chute is fixedly connected with the filter cylinder (5) through a filter cylinder connecting plate (6), and the lower parts of the filter cylinder connecting plates on the two sides are connected with a pushing oil cylinder (12);
a filter plate support frame (9) is arranged at the lower part of the filter cylinder through a support frame caster (10), a filter plate (8) is arranged at the upper part of the filter plate support frame, and a liquid collecting tank (11) is arranged at the lower part of the filter plate;
a hydraulic pump station (14) is arranged on one side of the frame;
a slurry tank (16) is arranged at the other side of the frame, a slurry pump (15) is arranged in the slurry tank, a grouting pipe (17) is connected to the gun material pump, and the upper opening of the grouting pipe is arranged at the outer side of the opening edge of the filtering cylinder;
a controller (18) is arranged on the frame, a PLC (18.1) is arranged in the controller, a power switch (18.2) and a power converter (18.3) are arranged in the controller, and a piston hydraulic cylinder control module (2.1), a push oil cylinder control module (12.1), a hydraulic pump station control module (14.1) and a slurry pump control module (15.1) are connected to the PLC;
controlling the filtration process with a computer controller:
setting a piston ascending and descending position program in a PLC of the controller, and inputting the program through the PLC to enable a piston hydraulic cylinder control module to execute up-and-down stroke operation;
setting a program for pushing the top and bottom dead center positions of the oil cylinder in a PLC of the controller, and pushing an oil cylinder control module to execute top and bottom dead center operations by inputting the program through the PLC;
inputting a hydraulic pump station working program into a PLC of the controller, inputting the program into the PLC, and executing the operation of a hydraulic pump station by a hydraulic pump station control module;
inputting a slurry pump working program into a PLC of the controller, and executing the start-stop operation of the slurry pump by a slurry pump control module through inputting the program by the PLC;
linkage between control modules: in the preparation stage before filtration, a slurry pump is started to inject materials into a filter cylinder, a liquid level sensor is arranged on the edge of the opening of the filter cylinder, and when the liquid level sensor senses that the liquid level reaches the end point, the slurry pump is automatically stopped;
when the piston hydraulic rod is pressed down, the hydraulic pump station injects oil into the piston hydraulic cylinder under the instruction of the hydraulic pump station control module to drive the piston hydraulic rod to drive the piston to move downwards until the potential difference is balanced, and at the moment, the oil is pumped in a reverse direction, so that the piston hydraulic cylinder returns to the original state, namely the operation of one stroke;
when the filter cylinder moves up and down, the hydraulic pump station is also started to inject oil into the pushing oil cylinder, the filter cylinder is lifted up through the push rod, and when the filter cylinder reaches a set position, the oil is pumped in a reverse direction, so that the push rod of the pushing oil cylinder retracts, and the filter cylinder falls onto the filter plate;
when filtering is carried out, firstly, preparation before filtering is carried out, the piston is lifted up through the controller and leaves the upper opening of the filtering cylinder, then the pushing oil cylinder is retracted through the controller to drive the filtering cylinder to move downwards and be buckled on the filtering plate, slurry to be filtered is pumped into the slurry tank through the pump, then the slurry pump is started to pump the slurry into the filtering cylinder, after the slurry is fully pumped, the piston is pressed downwards through the controller again to extrude the slurry, the liquid part flows out of the filtering plate into the liquid collecting tank under the action of pressure, the solid part is gradually extruded to the bottom of the filtering cylinder until no liquid is discharged, namely the filtering cylinder is positioned at the bottom dead center, at the moment, the piston and the filtering cylinder are lifted up through the controller, a filter cake gap is formed between the filtering cylinder and the filtering plate, and filter cakes are taken out through machinery or manpower, and a filtering task is completed; after one filtration, the computer controller is used repeatedly to control the filtration process, and the preparation stage before filtration is carried out again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053554.6A CN108181871B (en) | 2018-01-19 | 2018-01-19 | Method for controlling filtering device by computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810053554.6A CN108181871B (en) | 2018-01-19 | 2018-01-19 | Method for controlling filtering device by computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108181871A CN108181871A (en) | 2018-06-19 |
| CN108181871B true CN108181871B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810053554.6A Active CN108181871B (en) | 2018-01-19 | 2018-01-19 | Method for controlling filtering device by computer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662286A (en) * | 2002-05-31 | 2005-08-31 | 维苏维尤斯·克鲁斯布公司 | Fiber reinforced filter for molten metal filtration and method for producing such filters |
| CN101455915A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
| CN101829449A (en) * | 2010-05-18 | 2010-09-15 | 王光华 | Rotary pressure filter |
| CN103405952A (en) * | 2013-08-30 | 2013-11-27 | 重庆三温暖电气有限公司 | Filter press control method and system |
| CN103890411A (en) * | 2011-09-30 | 2014-06-25 | 普茨迈斯特工程有限公司 | Hydraulic system with suction/return filter |
| CN205216311U (en) * | 2015-11-25 | 2016-05-11 | 江西核工业兴中新材料有限公司 | Alkali formula nickelous carbonate filters to press uses membrane filter press futilely |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014197884A1 (en) * | 2013-06-07 | 2014-12-11 | NF Industries, LLC | Solar water purifier |
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2018
- 2018-01-19 CN CN201810053554.6A patent/CN108181871B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662286A (en) * | 2002-05-31 | 2005-08-31 | 维苏维尤斯·克鲁斯布公司 | Fiber reinforced filter for molten metal filtration and method for producing such filters |
| CN101455915A (en) * | 2008-12-30 | 2009-06-17 | 周立武 | Desulfurization waste-water high-pressure filteration no-leakage system and technique |
| CN101829449A (en) * | 2010-05-18 | 2010-09-15 | 王光华 | Rotary pressure filter |
| CN103890411A (en) * | 2011-09-30 | 2014-06-25 | 普茨迈斯特工程有限公司 | Hydraulic system with suction/return filter |
| CN103405952A (en) * | 2013-08-30 | 2013-11-27 | 重庆三温暖电气有限公司 | Filter press control method and system |
| CN205216311U (en) * | 2015-11-25 | 2016-05-11 | 江西核工业兴中新材料有限公司 | Alkali formula nickelous carbonate filters to press uses membrane filter press futilely |
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| CN108181871A (en) | 2018-06-19 |
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