CN104764900A - Filter press filtrate monitoring device - Google Patents
Filter press filtrate monitoring device Download PDFInfo
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- CN104764900A CN104764900A CN201510172135.0A CN201510172135A CN104764900A CN 104764900 A CN104764900 A CN 104764900A CN 201510172135 A CN201510172135 A CN 201510172135A CN 104764900 A CN104764900 A CN 104764900A
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Abstract
The invention belongs to the field of filter press auxiliary equipment, and particularly relates to a filter press filtrate monitoring device. The filter press filtrate monitoring device mainly comprises a mechanical part and a circuit part; the mechanical part mainly comprises a tachogenerator, an impeller and a shell, the tachogenerator is fixedly connected with the shell, and a rotation shaft of the tachogenerator is connected with the impeller; the circuit part mainly comprises a circuit board and a threshold value setting device, a window comparator, a relay and a signal transmitting device which are installed on the circuit board, the circuit board is further provided with an input port of the tachogenerator, two input ports of the window comparator are connected with an output port of the threshold value setting device and the input port of the tachogenerator respectively, an output port of the window comparator is connected with an input port of the relay, an output port of the relay is connected with the signal transmitting device, and the signal transmitting device is connected with a PLC. The filter press filtrate monitoring device is simple in structure, convenient to install, low in fault rate and cost, and capable of improving the automation control of a filter press.
Description
Technical field
The invention belongs to pressure filter utility appliance field, specifically, relate to a kind of filter press filtrate monitoring device.
Background technology
Pressure filter is a kind of conventional solid-liquid separating equipment, is widely used in chemical industry, pharmacy, metallurgy, dyestuff, food, brewages, pottery and the industry such as environmental protection.Pressure filter generally has three large ingredients: frame, hold-down mechanism and filter mechanism.Filter mechanism is generally made up of some filter plates, filter frame and filter cloth, filter cloth covers filter plate both sides, filter frame is positioned at composition filter chamber in the middle of two pieces of filter plates, and material enters each filter chamber from charging aperture, and the penetration by liquid filter cloth under the extruding of hold-down mechanism in material is discharged from the liquid outlet filter plate.The filter type of pressure filter is divided into free flow filtration and undercurrent to filter, and it is that filtrate is directly discharged extraneous from liquid outlet that free flow filters, and can see the discharge process of filtrate intuitively, but free flow filtration is only applicable to volatile and not nontoxic liquid; And undercurrent filtration connects liquid outlet channel, all filtrate is concentrated discharge, undercurrent filters the discharge process that can't see filtrate, but is applicable to all liq.
In order to adapt to modern production, pressure filter progressively to full-automatic future development, advanced PLC control technology is utilized to improve pressure filter, and add automatic pulling plate system, automatic panel-turnover system, automatic cleaning system etc., whole pressure-filtering process is decomposed, the monitor different by some functions carries out node control, such that equipment is more intelligent, robotization.
Summary of the invention
The object of the present invention is to provide a kind of filter press filtrate monitoring device, whether the filter process of monitoring pressure filter completes, for pressure filter provides more accurate control signal.
The technical solution used in the present invention is: filter press filtrate monitoring device, it mainly comprises mechanical part and circuit part, described mechanical part mainly comprises tech-generator, impeller and shell, described tech-generator is fixedly connected on the outside of shell, enclosure is stretched in the rotating shaft of tech-generator, and the rotating shaft of tech-generator is fixedly connected with impeller;
Threshold value setting device, window comparator, relay and sender unit that described circuit part mainly comprises circuit board and installs on circuit boards, described circuit board is also provided with tech-generator input port, two input ports connect threshold setting device output port and tech-generator input port respectively of described window comparator, the output port of described window comparator connects the input port of relay, the output port connection signal emitter of described relay, described sender unit connects PLC.
Preferably, above described tech-generator, the inside of shell is fixedly connected with collector tube, and described collector tube is funnel-form, and described impeller is positioned at immediately below collector tube lower port.
Preferably, described tech-generator is DC tachometer generator.
Preferably, the blade of described impeller is plate blade or curved blade.
Preferably, described impeller is made up of PPS plastics.
Preferably, the width of the blade of described impeller is equal with the external diameter of collector tube lower port.
The invention has the advantages that: structure of the present invention is simple, easy for installation, failure rate is low and with low cost, can judge more accurately to filter and whether complete, improve the Automated condtrol of pressure filter.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the invention will be further described:
Fig. 1 is the structural representation of the mechanical part of filter press filtrate monitoring device embodiment 1 of the present invention;
Fig. 2 is the circuit diagram of the circuit part of filter press filtrate monitoring device of the present invention;
Fig. 3 is the structural representation of the mechanical part of filter press filtrate monitoring device embodiment 2 of the present invention;
In figure: 1, DC tachometer generator; 2, impeller; 3, collector tube; 4, shell.
Embodiment
Embodiment 1
Filter press filtrate monitoring device, it mainly comprises mechanical part and circuit part.
As shown in Figure 1, described mechanical part mainly comprises DC tachometer generator 1, impeller 2 and shell 4, described DC tachometer generator 1 is fixedly connected on the outside of shell 4, shell 4 inside is stretched in the rotating shaft of DC tachometer generator 1, the rotating shaft of DC tachometer generator 1 is fixedly connected with impeller 2, above described DC tachometer generator 1, the inside of shell 4 is fixedly connected with collector tube 3, described collector tube 3 is in funnel-form, described impeller 2 is positioned at immediately below collector tube 3 lower port, the blade of described impeller 2 is plate blades, described impeller 2 is made up of PPS plastics, the width of the blade of described impeller 2 is equal with the external diameter of collector tube 3 lower port.Except the plate blade shown in Fig. 1, the blade of impeller 2 can also be curved blade.
As shown in Figure 2, threshold value setting device, window comparator, relay and sender unit that described circuit part mainly comprises circuit board and installs on circuit boards, described circuit board is also provided with tech-generator input port, two input ports connect threshold setting device output port and tech-generator input port respectively of described window comparator, the output port of described window comparator connects the input port of relay, the output port connection signal emitter of described relay, described sender unit connects PLC.
Principle of work is as follows:
Filtrate is by directly to drop on after collector tube 3 on impeller 2 and impeller 2 is rotated, thus make DC tachometer generator 1 produce a voltage, and by tech-generator input port by this voltage input window comparer, the threshold value of the voltage that DC tachometer generator 1 inputs by window comparator and setting compares, if higher than the threshold value of setting, window comparator output low level, relay does not work; If lower than the threshold value of setting, window comparator exports high level, relay work, and sender unit is launched can by the analog quantity of PLC identification, and PLC controls pressure filter and carries out follow-up work.
Embodiment 2
Filter press filtrate monitoring device, it mainly comprises mechanical part and circuit part.
As shown in Figure 3, described mechanical part mainly comprises DC tachometer generator 1, impeller 2 and shell 4, described DC tachometer generator 1 is fixedly connected on the outside of shell 4, shell 4 inside is stretched in the rotating shaft of DC tachometer generator 1, the rotating shaft of DC tachometer generator 1 is fixedly connected with impeller 2, the blade of described impeller 2 is plate blades, and described impeller 2 is made up of PPS plastics.Except the plate blade shown in Fig. 3, the blade of impeller 2 can also be curved blade.
As shown in Figure 2, threshold value setting device, window comparator, relay and sender unit that described circuit part mainly comprises circuit board and installs on circuit boards, described circuit board is also provided with tech-generator input port, two input ports connect threshold setting device output port and tech-generator input port respectively of described window comparator, the output port of described window comparator connects the input port of relay, the output port connection signal emitter of described relay, described sender unit connects PLC.
Principle of work of the present invention is as follows:
Filtrate is directly dropped on after entering shell 4 on impeller 2 and impeller 2 is rotated, thus make DC tachometer generator 1 produce a voltage, and by tech-generator input port by this voltage input window comparer, the threshold value of the voltage that DC tachometer generator 1 inputs by window comparator and setting compares, if higher than the threshold value of setting, window comparator output low level, relay does not work; If lower than the threshold value of setting, window comparator exports high level, relay work, and sender unit is launched can by the analog quantity of PLC identification, and PLC controls pressure filter and carries out follow-up work.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of amplifying out or variation be still in the row of protection scope of the present invention.
Claims (6)
1. filter press filtrate monitoring device, it is characterized in that: it mainly comprises mechanical part and circuit part, described mechanical part mainly comprises tech-generator, impeller (2) and shell (4), described tech-generator is fixedly connected on the outside of shell (4), shell (4) inside is stretched in the rotating shaft of tech-generator, and the rotating shaft of tech-generator is fixedly connected with impeller (2);
Threshold value setting device, window comparator, relay and sender unit that described circuit part mainly comprises circuit board and installs on circuit boards, described circuit board is also provided with tech-generator input port, two input ports connect threshold setting device output port and tech-generator input port respectively of described window comparator, the output port of described window comparator connects the input port of relay, the output port connection signal emitter of described relay, described sender unit connects PLC.
2. according to filter press filtrate monitoring device according to claim 1, it is characterized in that: above described tech-generator, the inside of shell (4) is fixedly connected with collector tube (3), described collector tube (3) is in funnel-form, and described impeller is positioned at immediately below collector tube (3) lower port.
3. according to filter press filtrate monitoring device according to claim 1, it is characterized in that: described tech-generator is DC tachometer generator (1).
4. according to filter press filtrate monitoring device according to claim 1, it is characterized in that: the blade of described impeller (2) is plate blade or curved blade.
5. according to the filter press filtrate monitoring device described in claim 1 or 4, it is characterized in that: described impeller (2) is made up of PPS plastics.
6. according to filter press filtrate monitoring device according to claim 2, it is characterized in that: the width of the blade of described impeller (2) is equal with the external diameter of collector tube (3) lower port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172135.0A CN104764900A (en) | 2015-04-11 | 2015-04-11 | Filter press filtrate monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172135.0A CN104764900A (en) | 2015-04-11 | 2015-04-11 | Filter press filtrate monitoring device |
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| CN104764900A true CN104764900A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510172135.0A Pending CN104764900A (en) | 2015-04-11 | 2015-04-11 | Filter press filtrate monitoring device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139848Y (en) * | 1992-09-14 | 1993-08-11 | 高钦 | Test device for pull plate reversing of filter press |
| CN101097226A (en) * | 2006-06-28 | 2008-01-02 | 亨特风扇公司 | Air filter monitor |
| CN201251462Y (en) * | 2008-08-07 | 2009-06-03 | 王宾 | Fluid metering device |
| CN101601946A (en) * | 2009-06-25 | 2009-12-16 | 徐柏根 | A kind of rotary dynamic closed filtering process and device |
| CN102445244A (en) * | 2011-10-18 | 2012-05-09 | 昆明有色冶金设计研究院股份公司 | Ore slurry online detection device and multi-parameter detection method |
-
2015
- 2015-04-11 CN CN201510172135.0A patent/CN104764900A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139848Y (en) * | 1992-09-14 | 1993-08-11 | 高钦 | Test device for pull plate reversing of filter press |
| CN101097226A (en) * | 2006-06-28 | 2008-01-02 | 亨特风扇公司 | Air filter monitor |
| CN201251462Y (en) * | 2008-08-07 | 2009-06-03 | 王宾 | Fluid metering device |
| CN101601946A (en) * | 2009-06-25 | 2009-12-16 | 徐柏根 | A kind of rotary dynamic closed filtering process and device |
| CN102445244A (en) * | 2011-10-18 | 2012-05-09 | 昆明有色冶金设计研究院股份公司 | Ore slurry online detection device and multi-parameter detection method |
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Application publication date: 20150708 |