CN107088319A - Filter press intelligent operation control device and control method - Google Patents
Filter press intelligent operation control device and control method Download PDFInfo
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- CN107088319A CN107088319A CN201710485673.4A CN201710485673A CN107088319A CN 107088319 A CN107088319 A CN 107088319A CN 201710485673 A CN201710485673 A CN 201710485673A CN 107088319 A CN107088319 A CN 107088319A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000706 filtrate Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 239000000523 sample Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 239000012065 filter cake Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 208000005156 Dehydration Diseases 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- B01D25/006—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration by level measuring
-
- 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
- B01D37/045—Controlling the filtration by level measuring
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
Present invention relates particularly to a kind of filter press intelligent operation control device and control method；Including one-level collecting vessel, one-level level probe is installed, the one-level level probe is by cradle hangs inside one-level collecting vessel, and the one-level level probe connects liquid level gauge by signal wire, and the liquid level gauge connects PLC in the one-level collecting vessel；The side wall upper part of the one-level collecting vessel is provided with one-level overflow delivery port, and the bottom of one-level collecting vessel is provided with one-level control delivery port；One-level is provided with the one-level control delivery port and far controls valve, the one-level far controls valve connection PLC；The present invention controls to automatically generate filling and the filtration time of filter press using the change for detecting filtrate water-carrying capacity, by PLC, not only reduces the labor intensity of post worker, saves the electricity charge, and filter press is remained high-efficiency operation.
Description
Technical field
The present invention relates to Intellectualized controller, and in particular to a kind of filter press intelligent operation control device and controlling party
Method.
Background technology
Filter press is a kind of pressure filtration facility of intermittent operation, it is adaptable to the separation of solid and liquid of various suspensions, is applicable
Scope is wide, good separating effect, easy to operate, safe and reliable.Coal preparation plant of the country uses filter press mainly to slime water treatment at present.
Filter press used in Si He ore deposits coal preparation plant is the plate and frame type filter-press produced by Kang Ming Ces Co., Ltd of Spain, type
Number be APN18S6 types, separate unit filter area：208m2, totally 9.In daily production process, the feed time of filter press can only be leaned on
The streamflow size of filter press driver observation filtrate water, the dry and wet of briquette are manually set, due to individual's warp of filter press driver
Test different with operating habit, the factors such as ature of coal situation change cause this operating method to have great hysteresis quality and shakiness
It is qualitative, and cause filter press work efficiency very low.
The filling of filter press on domestic market and filtration time setting do not reach by pressing all by being manually set
Filter sets the feed time each circulated automatically according to ature of coal situation and with dehydrating effect.
The content of the invention
The present invention needs to be manually set the filling of filter press and filtration time to solve existing filter press, it is impossible to according to ature of coal
There is provided a kind of filter press intelligent operation control to control the filling of filter press and the technical problem of filtration time for situation and dehydrating effect
Device processed and control method.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
One-level liquid level is installed in a kind of filter press intelligent operation control device, including one-level collecting vessel, the one-level collecting vessel
Probe, the one-level level probe is by cradle hangs inside one-level collecting vessel, and the one-level level probe passes through signal wire
First liquid level gauge is connected, the liquid level gauge connects PLC；The side wall upper part of the one-level collecting vessel is provided with one-level and overflow
The mouth of a river is flowed out, the lower sides of one-level collecting vessel are provided with one-level control delivery port；It is provided with the one-level control delivery port
One-level far controls valve, and the one-level far controls Valve controlling end connection PLC.
Said apparatus is applied to most of material and carries out press filtration control.
Said apparatus is in specific works, and one-level collecting vessel bucket is placed on the delivery port bottom of filter press filtrate water.
A kind of filter press intelligent operation control method, is realized using above-mentioned filter press intelligent operation control device, including
Following steps,
A, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel, and the one-level on one-level control delivery port is set in advance
The aperture of remote control valve, the filtrate water-carrying capacity that initial stage is flowed into one-level collecting vessel is controlled out more than one-level collecting vessel upper level
Liquid level in the flow at the mouth of a river, one-level collecting vessel is increased；
B, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, the filtrate water-carrying capacity also all corresponding reduction of one-level collecting vessel is flowed into, when inflow one
When filtrate water-carrying capacity in level collecting vessel is less than the flow of one-level control delivery port, the liquid level in one-level collecting vessel is gradually reduced,
When one-level level probe is changed into touching less than filtrate water in one-level collecting vessel from touching filtrate water, connect with one-level level probe
Signal is transmitted to PLC by the first liquid level gauge connect, and the feed pump of PLC control filter press is automatically stopped work, pressed
The charging of filter terminates.
Set in the lower end of the one-level overflow delivery port in two grades of collecting vessels, two grades of collecting vessels and two grades of liquid are installed
Position probe, two grades of level probes are by cradle hangs inside two grades of collecting vessels, and two grades of level probes pass through signal
Line connects second liquid level gauge, and the liquid level gauge connects PLC；The side wall upper part of two grades of collecting vessels is provided with two grades
Overflow delivery port, the lower sides of two grades of collecting vessels are provided with Two-stage control delivery port；Set on the Two-stage control delivery port
There are two grades remote control valve, described two grades remote control Valve controlling end connection PLC.
The devices such as two grades of collecting vessels are set to be directed to some hardly possible dehydrations in the one-level overflow delivery port of one-level collecting vessel
Material, is carried out set during press filtration during ature of coal situation extreme variation.Two grades of collecting vessels are intended to control on control one-level collecting vessel
The aperture of outlet valve.
A kind of filter press intelligent operation control method, is realized using above-mentioned filter press intelligent operation control device, including
Following steps,
A, the action time t for setting two grades of level probes in PLC first；
B, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel, and the one-level on one-level control delivery port is set in advance
The aperture of remote control valve, the filtrate water-carrying capacity that initial stage is flowed into one-level collecting vessel is controlled out more than one-level collecting vessel upper level
Liquid level in the flow at the mouth of a river, one-level collecting vessel is increased；After reaching a certain height, filtrate water in one-level collecting vessel is from one
Level overflow delivery port flows into two grades of collecting vessels, the aperture of the two grades remote control valve on Two-stage control delivery port is set in advance, just
The filtrate water-carrying capacity that stage phase is flowed into two grades of collecting vessels is more than the flow of Two-stage control delivery port；Liquid level in two grades of collecting vessels
Increase；
C, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, and the filtrate water-carrying capacity for flowing into one-level collecting vessel and two grades of collecting vessels is also all corresponding
Reduce；When the filtrate water-carrying capacity in two grades of collecting vessels of inflow is less than the flow of Two-stage control delivery port, in two grades of collecting vessels
Liquid level is gradually reduced, when two grades of level probes are changed into touching less than the filtrate water in two grades of collecting vessels from that can touch filtrate water
When, signal is transmitted to PLC by the second liquid level gauge being connected with two grades of level probes, and PLC starts according to filter press
The action time t for running to two grade level probes of the time used in second liquid level gauge transmission signal with setting before is compared
It is right：Divide following two situations；
If 1. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is less than the effect of two grades of level probes
During time t, PLC control one-level is far controlled valve and closed rapidly, until two grades of level probes touch two grades of collections again
During filtrate water in bucket and postpone 5 seconds, then, one-level far controls 90% that valve automatically opens up the aperture size to before closing；
If 2. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is more than the effect of two grades of level probes
During time t, one-level far controls valve opening size and keeps constant；
D, over time, the filtrate for flowing into one-level collecting vessel accordingly reduces, when one-level level probe is by touching filtrate water
When being changed into touching less than filtrate water in one-level collecting vessel, signal is transmitted to by the first liquid level gauge being connected with one-level level probe
PLC, the feed pump of PLC control filter press is automatically stopped work, and the charging of filter press terminates.
Compared with prior art the invention has the advantages that：
1st, the traditional concept for setting manually filter press filling and filtration time is broken, using the change for detecting filtrate water-carrying capacity,
Control to automatically generate filling and the filtration time of filter press by PLC, not only reduce the labor intensity of post worker, save electricity
Take, and filter press is remained high-efficiency operation.
2nd, when ature of coal situation extreme variation, this device can be by two grades of collecting vessel intelligentized control method one-level collecting vessels
One-level control the aperture size of outlet valve, can be according to the control system of this device of on-site actual situations intelligent optimization.
3rd, this patent is may be used on all filter presses and similar devices, realizes the automatic of filter press and similar devices
Change, intellectuality is run, and is the important breakthrough in filter press and similar devices technological innovation, imitated with important economy and society
Benefit.
Brief description of the drawings
Fig. 1 is filter press intelligent operation control device.
Fig. 2 is liquid level gauge connection line figure.
Fig. 3 is liquid level gauge and PLC connection line figure.
Marked in figure as follows：
1- one-level collecting vessels, 2- one-level level probes, 3- one-level overflow delivery ports, 4- one-levels control delivery port, 5- one-level blowdowns
Delivery port, 6- one-levels far control valve, 7- one-level valves, bis- grades of collecting vessels of 8-, bis- grades of level probes of 9-, bis- grades of overflow water outlets of 10-
Mouthful, 11- Two-stage control delivery ports, bis- grades of blowdown delivery ports of 12-, the bis- grades remote control valves of 13-, 14- secondary valves door.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
One-level liquid is installed in a kind of filter press intelligent operation control device, including one-level collecting vessel 1, the one-level collecting vessel 1
Position probe 2, the one-level level probe 2 is by cradle hangs inside one-level collecting vessel 1, and the one-level level probe 2 passes through
Signal wire connects first liquid level gauge, and the liquid level gauge connects PLC；The side wall upper part of the one-level collecting vessel 1 is provided with
One-level overflow delivery port 3, the lower sides of one-level collecting vessel 1 are provided with one-level control delivery port 4；The one-level controls delivery port
One-level is provided with 4 and far controls valve 6, the one-level far controls the control end of valve 6 connection PLC.
Described filter press intelligent operation control device, one-level blowdown delivery port is provided with the bottom of one-level collecting vessel 1
5, one-level valve 7 is provided with the one-level blowdown delivery port 5.
Set in the lower end of the one-level overflow delivery port 3 in two grades of collecting vessels 8, two grades of collecting vessels 8 and be provided with two
Level level probe 9, two grades of level probes 9 by cradle hangs inside two grades of collecting vessels 8, two grades of level probes 9
Second liquid level gauge is connected by signal wire, the liquid level gauge connects PLC；The side wall upper part of two grades of collecting vessels 8 is set
Two grades of overflow delivery ports 10 are equipped with, the lower sides of two grades of collecting vessels 8 are provided with Two-stage control delivery port 11；The Two-stage control
Two grades remote control valve 13, described two grades remote control valve 13 control end connection PLC are provided with delivery port 11.
The bottom of two grades of collecting vessels 8 is provided with two grades of blowdown delivery ports 12, two grades of blowdown delivery ports 12 and is provided with
Secondary valve door 14.
A kind of filter press intelligent operation control method, comprises the following steps,
A, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel 1, and one on one-level control delivery port 4 is set in advance
The aperture of the remote control valve 6 of level, the filtrate water-carrying capacity that initial stage flows into one-level collecting vessel 1 is more than the upper level of one-level collecting vessel 1
The liquid level in the flow of delivery port 4, one-level collecting vessel is controlled to increase；
B, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, is flowed into the filtrate water-carrying capacity also all corresponding reduction of one-level collecting vessel 1, is worked as inflow
When filtrate water-carrying capacity in one-level collecting vessel 1 is less than one-level and controls the flow of delivery port 4, liquid level in one-level collecting vessel gradually under
Drop, when one-level level probe 2 is changed into touching less than filtrate water in one-level collecting vessel 1 from touching filtrate water, with one-level liquid level
Signal is transmitted to PLC by the first liquid level gauge that probe 2 is connected, and the feed pump of PLC control filter press is automatically stopped
Work, the charging of filter press terminates.
A kind of filter press intelligent operation control method, comprises the following steps,
A, the action time t for setting two grades of level probes 9 in PLC first；
B, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel 1, and one on one-level control delivery port 4 is set in advance
The aperture of the remote control valve 6 of level, the filtrate water-carrying capacity that initial stage flows into one-level collecting vessel 1 is more than the upper level of one-level collecting vessel 1
The liquid level in the flow of delivery port 4, one-level collecting vessel is controlled to increase；After reaching a certain height, the filter in one-level collecting vessel
Liquid water flows into two grades of collecting vessels 8 from one-level overflow delivery port 3, and the two grades remote control valve on Two-stage control delivery port 12 is set in advance
The aperture of door 13, initial stage flows into two grades of collecting vessels 8 flow of the filtrate water-carrying capacity more than Two-stage control delivery port 12；Two
Liquid level in level collecting vessel is increased；
C, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, flows into the filtrate water-carrying capacity of one-level collecting vessel 1 and two grades of collecting vessels 8 also all phase
It should reduce；When the filtrate water-carrying capacity in two grades of collecting vessels 8 of inflow is less than the flow of Two-stage control delivery port 12, two grades of collecting vessels
Interior liquid level is gradually reduced, when two grades of level probes 9 are changed into touching less than the filter in two grades of collecting vessels 8 from that can touch filtrate water
During liquid water, signal is transmitted to PLC by the second liquid level gauge being connected with two grades of level probes 9, and PLC is according to filter press
Bring into operation to second liquid level gauge and send the action time t of the time used in signal and the two grades of level probes 9 set before
It is compared：Divide following two situations；
If 1. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is less than the effect of two grades of level probes 9
During time t, PLC control one-level far controls the closing rapidly of valve 6, until two grades of level probes 9 touch two grades of receipts again
Collect bucket 8 in filtrate water when and postpone 5 seconds（Can separately it be set according to scene）, then, one-level is far controlled valve 6 and automatically opened up to original
The 90% of aperture size before aperture or closing（Can separately it be set according to scene）；Over time, when two grades of collecting vessels of inflow
Filtrate water-carrying capacity in 8 again less than Two-stage control delivery port 12 flow when, the liquid level in two grades of collecting vessels is gradually reduced, when
When two grades of level probes 9 are changed into touching less than filtrate water in two grades of collecting vessels 8 from that can touch filtrate water again, with two grades of liquid
Signal is transmitted to PLC by the second liquid level gauge that position probe 9 is connected, and PLC brings into operation to second according to filter press
The action time t that liquid level gauge sends two grade level probes 9 of the time with setting before used in signal is compared, if small
When the action time t of two grades of level probes 9, PLC control continues executing with the control of above-mentioned control valve remote to one-level, such as
This is reciprocal, until filter press brings into operation to second liquid level gauge, the time sent used in signal is more than the two grades of liquid set before
During the action time t of position probe 9, PLC is not performing control to the remote control valve of one-level；
If 2. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is more than the effect of two grades of level probes 9
During time t, one-level far controls the aperture size of valve 6 and keeps constant；
D, over time, flows into one-level collecting vessel（1）Filtrate accordingly reduce, when one-level level probe（2）By touching
Filtrate water is changed into touching less than one-level collecting vessel（1）During interior filtrate water, with one-level level probe（2）The first liquid level gauge of connection
Signal is transmitted to PLC, the feed pump of PLC control filter press is automatically stopped work, and the charging of filter press terminates.
The action time t of two grades of level probes 9 setting range is 800-1000 seconds, according to different ature of coal and thing
The dehydration complexity of material is determined.
One-level blowdown delivery port 5 and two grades of blowdown water outlets that the bottom of the one-level collecting vessel 1 and two grades of collecting vessels 8 is set
Mouth 12 is used for discharge impurities or the rubbish fallen into bucket.
Claims (7)
1. a kind of filter press intelligent operation control device, it is characterised in that：Including one-level collecting vessel（1）, the one-level collecting vessel
（1）One-level level probe is inside installed（2）, the one-level level probe（2）By cradle hangs in one-level collecting vessel（1）It is interior
Portion, the one-level level probe（2）First liquid level gauge is connected by signal wire, the liquid level gauge connects PLC；It is described
One-level collecting vessel（1）Side wall upper part be provided with one-level overflow delivery port（3）, one-level collecting vessel（1）Lower sides be provided with
One-level controls delivery port（4）；The one-level controls delivery port（4）On be provided with one-level and far control valve（6）, the one-level far controls valve
Door（6）Control end connects PLC.
2. filter press intelligent operation control device according to claim 1, it is characterised in that：One-level collecting vessel（1）Bottom
Portion is provided with one-level blowdown delivery port（5）, the one-level blowdown delivery port（5）On be provided with one-level valve（7）.
3. filter press intelligent operation control device according to claim 1 or 2, it is characterised in that：In the one-level overflow
Delivery port（3）Lower end set two grades of collecting vessels（8）, two grades of collecting vessels（8）Two grades of level probes are inside installed（9）, institute
State two grades of level probes（9）By cradle hangs in two grades of collecting vessels（8）Inside, two grades of level probes（9）Pass through signal
Line connects second liquid level gauge, and the liquid level gauge connects PLC；Two grades of collecting vessels（8）Side wall upper part be provided with two
Level overflow delivery port（10）, two grades of collecting vessels（8）Lower sides be provided with Two-stage control delivery port（11）；The Two-stage control
Delivery port（11）On be provided with two grades remote control valves（13）, described two grades remote control valve（13）Control end connects PLC.
4. filter press intelligent operation control device according to claim 3, it is characterised in that：Two grades of collecting vessels（8）Bottom
Portion is provided with two grades of blowdown delivery ports（12）, two grades of blowdown delivery ports（12）On be provided with secondary valve door（14）.
5. a kind of filter press intelligent operation control method, controls to fill using filter press intelligent operation as claimed in claim 1 or 2
Put to realize, it is characterised in that：Comprise the following steps,
A, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel（1）, one-level control delivery port is set in advance（4）On
One-level far control valve（6）Aperture, initial stage flow into one-level collecting vessel in（1）Filtrate water-carrying capacity be more than one-level collecting vessel
（1）Upper level controls delivery port（4）Flow, the liquid level in one-level collecting vessel increases；
B, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, flows into one-level collecting vessel（1）Filtrate water-carrying capacity it is also all corresponding reduce, work as stream
Enter one-level collecting vessel（1）Interior filtrate water-carrying capacity is less than one-level and controls delivery port（4）Flow when, the liquid level in one-level collecting vessel
It is gradually reduced, when one-level level probe（2）It is changed into touching less than one-level collecting vessel from filtrate water can be touched（1）Interior filtrate water
When, with one-level level probe（2）Signal is transmitted to PLC by the first liquid level gauge of connection, PLC control filter press
Feed pump is automatically stopped work, and the charging of filter press terminates.
6. a kind of filter press intelligent operation control method, using filter press intelligent operation control device as claimed in claim 3
To realize, it is characterised in that：Comprise the following steps,
A, two grades of level probes are set in PLC first（9）Action time t；
B, filter press close filter plate, are formed after filter chamber, and filter press feed pump starts charging, after material filling full filter chamber, material
Dehydration starts, and the filtrate water flowed out from filter press flows into one-level collecting vessel（1）, one-level control delivery port is set in advance（4）On
One-level far control valve（6）Aperture, initial stage flow into one-level collecting vessel in（1）Filtrate water-carrying capacity be more than one-level collecting vessel
（1）Upper level controls delivery port（4）Flow, the liquid level in one-level collecting vessel increases；After reaching a certain height, one-level is received
Collect the filtrate water in bucket from one-level overflow delivery port（3）Flow into two grades of collecting vessels（8）, Two-stage control delivery port is set in advance
（12）On two grades remote control valve（13）Aperture, initial stage flow into two grades of collecting vessels in（8）Filtrate water-carrying capacity be more than two
Level control delivery port（12）Flow；Liquid level in two grades of collecting vessels is increased；
C, over time, filter cake is gradually formed in filter press filter chamber, and solids content gradually increases in filter chamber, out of filter chamber
The filtrate water of discharge is gradually decreased, at the same time, flows into one-level collecting vessel（1）With two grades of collecting vessels（8）Filtrate water-carrying capacity
It is all corresponding to reduce；When two grades of collecting vessels of inflow（8）Interior filtrate water-carrying capacity is less than Two-stage control delivery port（12）Flow when, two
Liquid level in level collecting vessel is gradually reduced, when two grades of level probes（9）It is changed into less than two grades receipts of touching from filtrate water can be touched
Collect bucket（8）During interior filtrate water, with two grades of level probes（9）Signal is transmitted to PLC, PLC by the second liquid level gauge of connection
Controller was brought into operation according to filter press to the time used in second liquid level gauge transmission signal and the two grades of liquid levels set before
Probe（9）Action time t be compared：Divide following two situations；
If 1. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is less than two grades of level probes（9）Work
During with time t, PLC control one-level far controls valve（6）It is rapid to close, until two grades of level probes（9）Touch again
Two grades of collecting vessels（8）During interior filtrate water and postpone 5 seconds, then, one-level far controls valve（6）It is big that aperture is automatically opened up to before closing
Small 90%；
If 2. filter press, which brought into operation to the time used in second liquid level gauge transmission signal, is more than two grades of level probes（9）Work
During with time t, one-level far controls valve（6）Aperture size keeps constant；
D, over time, flows into one-level collecting vessel（1）Filtrate accordingly reduce, when one-level level probe（2）By touching
Filtrate water is changed into touching less than one-level collecting vessel（1）During interior filtrate water, with one-level level probe（2）The first liquid level gauge of connection
Signal is transmitted to PLC, the feed pump of PLC control filter press is automatically stopped work, and the charging of filter press terminates.
7. a kind of filter press intelligent operation control method according to claim 6, it is characterised in that：Two grades of liquid levels are visited
Pin（9）Action time t setting range be 800-1000 seconds.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245951A (en) * | 2018-02-13 | 2018-07-06 | 常州信息职业技术学院 | A kind of method of work and press filteration system of antiseep press filteration system |
| CN108298604A (en) * | 2018-01-19 | 2018-07-20 | 常州信息职业技术学院 | A kind of working method and press filteration system of the press filteration system resetted based on electromagnetism |
| CN109865325A (en) * | 2017-12-05 | 2019-06-11 | 南京机器人研究院有限公司 | A kind of sewage disposal system and its working method |
| CN109865327A (en) * | 2017-12-05 | 2019-06-11 | 南京机器人研究院有限公司 | A kind of plate and frame press filteration system and its working method suitable for carrying drying function |
| CN111111275A (en) * | 2019-12-31 | 2020-05-08 | 天津中新智冠信息技术有限公司 | Control system, filter press feeding state detection method and monitoring equipment |
| CN112361217A (en) * | 2020-09-29 | 2021-02-12 | 中核四0四有限公司 | Debugging method of long-distance high-differential-pressure water transmission pipeline |
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| GB2252058A (en) * | 1991-01-25 | 1992-07-29 | Fernando Martinez Mugica | Filter cleaning system |
| US20040060850A1 (en) * | 2002-09-26 | 2004-04-01 | Chiaphua Industries Limited | Water purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109865325A (en) * | 2017-12-05 | 2019-06-11 | 南京机器人研究院有限公司 | A kind of sewage disposal system and its working method |
| CN109865327A (en) * | 2017-12-05 | 2019-06-11 | 南京机器人研究院有限公司 | A kind of plate and frame press filteration system and its working method suitable for carrying drying function |
| CN108298604A (en) * | 2018-01-19 | 2018-07-20 | 常州信息职业技术学院 | A kind of working method and press filteration system of the press filteration system resetted based on electromagnetism |
| CN108245951A (en) * | 2018-02-13 | 2018-07-06 | 常州信息职业技术学院 | A kind of method of work and press filteration system of antiseep press filteration system |
| CN111111275A (en) * | 2019-12-31 | 2020-05-08 | 天津中新智冠信息技术有限公司 | Control system, filter press feeding state detection method and monitoring equipment |
| CN112361217A (en) * | 2020-09-29 | 2021-02-12 | 中核四0四有限公司 | Debugging method of long-distance high-differential-pressure water transmission pipeline |
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