CN105209142A - Disc filter apparatus and method for controlling a disc filter - Google Patents
Disc filter apparatus and method for controlling a disc filter Download PDFInfo
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- CN105209142A CN105209142A CN201380076371.1A CN201380076371A CN105209142A CN 105209142 A CN105209142 A CN 105209142A CN 201380076371 A CN201380076371 A CN 201380076371A CN 105209142 A CN105209142 A CN 105209142A
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- 238000000034 method Methods 0.000 title claims description 39
- 239000000706 filtrate Substances 0.000 claims abstract description 53
- 230000008929 regeneration Effects 0.000 claims abstract description 53
- 238000011069 regeneration method Methods 0.000 claims abstract description 53
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000011001 backwashing Methods 0.000 claims description 87
- 238000001914 filtration Methods 0.000 claims description 59
- 239000012065 filter cake Substances 0.000 claims description 23
- 238000009790 rate-determining step (RDS) Methods 0.000 claims description 16
- 230000035699 permeability Effects 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 description 16
- 239000002002 slurry Substances 0.000 description 10
- 238000005554 pickling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000004506 ultrasonic cleaning Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 230000001939 inductive effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000002000 scavenging effect Effects 0.000 description 5
- 108091006146 Channels Proteins 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
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- 239000007787 solid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 238000003828 vacuum filtration Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011118 depth filtration Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
- B01D33/23—Construction of discs or component sectors thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/808—Accessories integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/56—Wireless systems for monitoring the filter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Abstract
A disc filter is provided with a pressure sensor (32) arranged in the filtrate collector line (30, 31) and configured to measure the backwash pressure of cleaning liquid pumped back to the filter plates (22) via the filtrate collector line during the backwash zone per revolution of the filter disc (20). The regeneration of the filter plate (22) is automatically or manually controlled or optimized on the basis of the measured backwash pressure.
Description
Technical field
In short, the present invention relates to disc filter.
Background technology
Filtration is a kind of widely used technique, and by this technique, force slurry or solidliquid mixture by a medium, solid stays on the medium, and liquid phase flows through this medium.Industrially, people generally understand this technique very much.The example of filtration types comprises in-depth filtration, pressure and vacuum filtration and gravity and centrifugal filtration.
Pressure and vacuum filter are used for essence mine dehydration.The main distinction between filter-press and vacuum filter is that the mode of the driving force produced for filtering is different.In pressure filtration, the excess pressure in filtering chamber produces by means of such as barrier film, piston or external equipment (such as feed pump).Thus, deposition of solid is on filter medium, and filtrate flows in filtrate channel via it.Because discharge filter cake continuously to be more difficult to realize, so filter-press usually runs with batch mode.
Vacuum filtration forms filter cake based on producing suction in filtrate channel.The most frequently used filter medium for vacuum filter filters cloth and coated media such as ceramic filter medium.Although there is the vacuum filter of several types, scope from belt filter to drum strainer, only comprise specific rotatory vacuum disc filter herein.
Rotatory vacuum disc filter filters suspension, such as essence mine dehydration freely for filtering the relative of large scale.Except producing the low filter cake of water content, essence mine dehydration also requires high ability.The usual energy ezpenditure of large-scale process is like this large, needs the means being used for reducing specific energy consumption.Vacuum disc type filter can comprise around central tube or the axle multiple filtering tables arranged coaxially in alignment.Each filtering table can independently filter sector (being referred to as filter) by several and be formed, described filtration sector is installed in a radial plane to form filtering table around central tube or axle circumference, when axle is assembled so that when rotating, each filter or sector are moved in slurry tank successively, and further, when rotating shaft rotates, each filter or sector raise and from slurry tank out.When filter medium is immersed in slurry tank, under the effect of vacuum, filter cake is formed on medium.Once filter sector or coil from slurry tank out, hole was drained along with a filter cake dehydrated scheduled time, and this scheduled time limits primarily of the rotary speed of dish.Filter cake by the back pulse of air or can be discharged by swiping, and restarts circulation afterwards.Although due to the cause by the vacuum leak of cloth during cake dewatering, the use of cloth filter media needs powerful vacuum pump, but, ceramic filter medium does not allow air to flow through when becoming wet, This further reduces required vacuum, make it possible to use minipump, and therefore produce significant energy-saving effect.
Filter is subject to the impact of pulp particle and external compound, and particularly in essence mine dehydration field, high owing to changing plate possibility cost, need overtime when the working time of each filter, the regeneration of filter medium becomes key factor.Filter medium periodically regenerates by means of one or more in three kinds of distinct methods, such as: (1) backwash, and (2) Ultrasonic Cleaning, and (3) pickling.The palingenesis of backwash and Ultrasonic Cleaning is close to as mechanical, and the regeneration utilizing acid is then based on chemical action.As another benefit of ceramic filter medium, ceramic filter plate is mechanically with chemically all ratio is as more durable in filtered cloth, and thus can bear harsh condition of work, the filter medium of its reproduction ratio other types is better.These attributes allow the sour chemical regeneration of filter, and cloth will have to abandon after being covered by particle, and have to change several times at the duration of work of a year.
Typically, periodically regenerate, such as every day 1 to 3 times.In automatically processing, after disc filter reaches predetermined filtration time, system itself can be cleaned and be got back to automatic fitration operation after the washing.Regeneration or scavenging period are also the scheduled times.The time interval between regeneration, it set once when disc filter assembles first usually as the duration of regeneration.Problem is, this scheduled time is not best scheduled time of the optimum performance for realizing disc filter usually.In addition, some filter operation personnel may often hesitate whether regenerate filtration media, because filter does not produce filter cake during the regeneration period.
Summary of the invention
The object of the invention is the performance improving disc filter.The object of the invention is by realize according to the equipment of independent claims, method, system and computer program.Embodiments of the invention openly in the dependent claims.
An aspect of of the present present invention is to provide a kind of rotary disk fil-ter equipment, especially a kind of capillarity disc filter, and it comprises:
Going barrel, described going barrel is with the coaxial filtering table of multiple continuous print, and described filtering table is formed by multiple fan-shaped screen plate;
At least one pressure sensor, described pressure sensor configurations becomes to measure the backwashing pressure being reversed the cleaning fluid being pumped to filter during filtering table often encloses the backwash district of rotation via filtrate collection pipeline; And
Control system, described control system is configured to the regeneration according to measured backwashing pressure controlled filter plate.
In one embodiment, described equipment comprises:
For holding the groove of granular materials suspension, fan-shaped screen plate is circumferentially installed in a radial plane around the central longitudinal axis of going barrel, to form corresponding dish;
The internal fluid communication of filtrate collection pipeline and filter;
For rotating the tumbler of going barrel around central longitudinal axis, each filter is displaced in described groove successively and from groove out;
In order to filter collector pipeline and the vacuum plant providing partial vacuum to filter, so that by being aspirated the filtrate of suspension and the granular materials suspension in dry slot by filtrate collection pipeline and filter, filtrate filter cake to be formed on described filter and to remove from filter during the Part I often enclosing rotation;
For during the Part II often enclosing rotation with backwashing pressure by collector pipeline and filter reverse pumping cleaning fluid the cleaning device of cleaned filter plate;
At least one pressure sensor, described pressure sensor configurations becomes the backwashing pressure in measurement collection organ pipe road;
Controller, described controller is configured to monitoring from the backwashing pressure measured by least one pressure sensor described.
In one embodiment, filtrate collection pipeline comprises the special collector pipeline being often drained through filter plate of the same sector for the coaxial filtering table of continuous print, and wherein, at least one pressure sensor described is included in each special collector at least one pressure sensor ducted, to be preferably incorporated in each special collector pipeline and to be positioned at a pressure sensor of an end of going barrel.
In one embodiment, filtrate collection pipeline comprises the special collector pipeline being often drained through filter plate of the same sector for the coaxial filtering table of continuous print, and wherein, filtrate collection pipeline comprises the special filtrate pipe for each filter, it is for being connected to corresponding collector pipeline by filter, at least one pressure sensor described be included in often be drained through in filter plate at least one described in pressure sensor in special filtrate pipe, be preferably incorporated in the pressure sensor in the special filtrate pipe of the last filter be often drained through in filter plate.
In one embodiment, this equipment comprises controller, is configured to monitor the peak value from the backwashing pressure of at least one pressure sensor described, and is configured to perform predetermined action when the peak value of measured backwashing pressure reaches predetermined threshold.
In one embodiment, this equipment comprises position sensor, preferred inclinometer, its be provided in that the peak value measuring backwashing pressure reaches predetermined threshold that be drained through position data on filter plate.
In one embodiment, controller is arranged in the going barrel of disc filter equipment, and this equipment comprises induction power delivery unit, and it is arranged to be energized to controller by means of the fixed part of induction power transmitting device from disc filter equipment.
In one embodiment, controller is arranged in the going barrel of disc filter equipment, and this equipment comprises wireless signal delivery unit, preferred induced signal delivery unit, and it is arranged to the fixed part transmission signal from controller to this equipment.
Another aspect of the present invention is to provide a kind of method for controlling rotary disk fil-ter, especially capillarity disc filter, described rotary disk fil-ter comprises going barrel, described going barrel is with the coaxial filtering table of multiple continuous print, described filtering table is formed by multiple fan-shaped screen plate, and the method comprises:
Measure the backwashing pressure being reversed the cleaning fluid being pumped to filter during filtering table often encloses the backwash district of rotation via collector pipeline; And
According to the regeneration of measured backwashing pressure controlled filter plate.
In one embodiment, rate-determining steps comprises: if the peak value of measured backwashing pressure reaches predetermined threshold, then control rotary disk fil-ter and enter regeneration operational mode.
In one embodiment, rate-determining steps comprises: if the peak value of measured backwashing pressure reaches predetermined threshold, then notify the operating personnel of rotary disk fil-ter, so that alert Non-follow control rotary disk fil-ter equipment enters regeneration operational mode.
In one embodiment, rate-determining steps comprises: the duration regenerated according to the independence of measured backwashing pressure controlled filter plate.
In one embodiment, rate-determining steps comprises: according to measured backwashing pressure control each independently regenerate between the time interval.
In one embodiment, rate-determining steps comprises: the average filtration ability of optimised filter plate and/or minimize the recovery time.
In one embodiment, rate-determining steps comprises: the filtrate filter cake production time optimizing rotary disk fil-ter equipment.
In one embodiment, rate-determining steps comprises:
According to the permeability of measured backwashing pressure assessment filter;
If the permeability assessed is less than first threshold, then increase the duration of independent regeneration;
If the permeability assessed is less than Second Threshold, then reduce the duration of independent regeneration.
In one embodiment, rate-determining steps comprises:
According to the permeability of measured backwashing pressure assessment filter;
If according to assessed permeability, at least one in filter is still blocked after several regenerations, then notify the operating personnel of rotary disk fil-ter.
In one embodiment, measuring process comprises: the backwashing pressure being often drained through filter plate measuring the same sector of the coaxial filtering table of continuous print respectively.
In one embodiment, measuring process comprises: measure the position of the last filter be often drained through in filter plate or the backwashing pressure near this position.
In one embodiment, the method comprises: based on the Angle Position of filtering table when measuring, determine the measured sector of the coaxial filtering table of continuous print.
Another aspect of the present invention is to provide a kind of control system for implementing control method.
Another aspect of the present invention is to provide a kind of computer program, and it comprises the program code for performing control method when this computer program runs on one or more computer or processor.
Accompanying drawing explanation
In more detail the present invention is described by means of exemplary embodiment below with reference to accompanying drawings, wherein:
Fig. 1 is the perspective plan view of the exemplary disc type filter apparatus can applying embodiments of the invention;
Fig. 2 shows the perspective plan view of the exemplary drum can applying embodiments of the invention;
Fig. 3 shows the perspective section view of the details of exemplary drum;
Fig. 4 shows the front view of the details of exemplary drum;
Fig. 5 shows the perspective plan view of exemplary sectorial ceramic filter plate;
Fig. 6 A, 6B and 6C show the example arrangement of the ceramic filter plate can applying embodiments of the invention;
Fig. 7 A, 7B, 7C, 7D and 7E show the different phase of filtering technique;
Fig. 8 A shows the backwashing pressure sensor be arranged in filtrate pipe according to exemplary embodiment of the present invention;
Fig. 8 B shows the connection of backwashing pressure sensor in filtrate pipe according to exemplary embodiment of the present invention;
Fig. 9 shows backwashing pressure sensor according to exemplary embodiment of the present invention in the ducted connection of filtrate collection;
Figure 10 shows the block diagram of the sensor control unit according to exemplary embodiment of the present invention;
Figure 10 B shows the flow chart of the exemplary operation of sensor control unit;
Figure 11 shows the perspective plan view of induction power according to exemplary embodiment of the present invention and signal transmission unit;
Figure 12 shows the flow chart that the regeneration according to exemplary embodiment is optimized; With
Figure 13 shows the flow chart that the regeneration according to another exemplary embodiment is optimized.
Detailed description of the invention
The fluent material that principle of the present invention can be applied to drying or dewater in any industrial technology, especially ore and mining industry.In the embodiments described herein, the material that filter is called as slurry, but embodiments of the invention are not intended to be confined to this kind of fluent material.Slurry can have high solid concentrate, such as base metal concentrate, iron ore, chromite, ferrochrome, copper, gold, cobalt, nickel, zinc, lead and pyrite.
Fig. 1 and Fig. 2 can apply the exemplary disc type filter apparatus of embodiments of the invention and the perspective plan view of exemplary drum 20.This exemplary disc type filter apparatus 10 comprises cylindrical drum 20, and drum is supported on framework 8 by bearing 13 and 17, and can rotate around the longitudinal axis of drum 20, makes the lower part of drum be immersed in the slurry tank 9 be arranged in below drum 20.Drum drive 12 is provided with the driver element 12 (such as electro-motor, gear-box) for making drum 20 rotate.Drum 20 comprises the central axis multiple ceramic filter dishes 21 arranged coaxially in alignment around drum 20.Such as, the quantitative range of ceramic filter dish can be from 2 to 20.The diameter of each dish 21 can be comparatively large, and such as scope is from 1.5 meters to 4 meters.The commercially available example can applying the disc filter of embodiments of the invention comprises the CeramecCC filter manufactured by OutotecInc., and model comprises CC-6, CC-15, CC-30, CC-45, CC-60, CC-96 and CC-144.
Fig. 3 and Fig. 4 is perspective section view and the front view of the details of the exemplary drum 20 can applying embodiments of the invention respectively.Fig. 5 shows the perspective plan view of exemplary sectorial ceramic filter plate 22.In figs. 3 and 4, only show in multiple filtering table 21, but other filtering tables in this dish row are structurally preferably substantially similar, as can seeing in Fig. 1 and Fig. 2.Each filtering table 22 can be formed by several independent fan-shaped ceramic filter elements (being referred to as filter 22), and filter element is installed in a radial plane around the central axis circumference of drum, to form the surface, square position of basic continous.The quantity of filter can be such as 12 or 15.Filter 22 can be provided with installation portion, such as secured opening 26,27 and 28, and it plays the effect of the device on the erecting device for being attached to by plate 22 in drum.In the exemplary embodiment shown in Fig. 3 and Fig. 4, filter 22 can be assembled on circular borderline structure 23, and this circular borderline structure 23 can be arranged on central cylinder or axle 25 by means of radial spoke 24a (being similar to spoke wheel).Borderline structure 23 can have hole or other devices, and the installation portion 26,27 and 28 of filter 22 can be attached in described hole or other devices.Filter 22 can also be provided with installation portion 29, such as pipe joint 29, and it plays the effect for the device providing the internal fluid passageway of filter 22 to be connected with collector pipeline 30 fluid in drum.In the exemplary embodiment shown in Fig. 3 and Fig. 4, each filter 22 utilizes flexible pipe 31 to be connected to collector pipeline 30.In the exemplary embodiment, filter 22 sets in a row, and can arrange several collector pipelines 30 along the longitudinal direction of drum, and the effect of collector pipeline connects the filter be arranged in same row; That is, the collector pipeline 30 (preferably, the corresponding collector pipeline 30 in each sector of filtering table 21) with the row as much of filter 3 can be there is.As shown in Figure 2, collector pipeline 30 can be connected to the distributing valve 14 be arranged on the axis of filter, and the effect of distributing valve 14 is that partial vacuum or excess pressure are transferred to filter 22.Distributing valve 14 can comprise multiple district, makes a part for filter 22 comprise partial vacuum (there is filter cake in this case to be formed and filtration cakes torrefaction) or excess pressure (in such cases by buffer brake water or filtrate cleaning and filtering element).If use longer drum, then advantageously, at the both ends place of drum, all distributing valve can be set.Can provide vacuum system, it can comprise filtrate cabinet 2, vavuum pump 3 and filtrate pump 1.Vavuum pump 3 keeps the partial vacuum in the pipeline 30 of filter, and filtrate pump 1 removes filtrate.Punching or backwash can be arranged down, make some filtrates or turn back to collector pipeline from the clear water of external water source by means of backwashing system, such as backwashing pump, filter 22 periodically can regenerate by means of one or more in three kinds of distinct methods, such as: backwash 4, Ultrasonic Cleaning 6 and pickling 7.The operation of disc filter can be controlled by filter control unit 5, such as programmable logic controller PLC.
Fig. 6 A, 6B and 6C show the example arrangement of the ceramic filter plate can applying embodiments of the invention.Micro-porous filtration plate can be strengthened and the aluminium oxide manufacture of wear-resisting material to realize machinery by high temperature sintering.Micro-porous filtration plate 22 can comprise the first suction walls 61A, 62A and relative the second suction walls 61B, 62B.First suction walls comprises microporous barrier 61A and micropore substrate 62A, and microporous barrier 61A is positioned on micropore substrate.Equally, the second suction walls comprises microporous barrier 61B and micropore substrate 62B.Between relative the first and second suction walls 61A, 62A and 61B, 62B, be limited with inner space 63, form sandwich thus.Inner space 63 is provided with runner or multiple runner, and described runner is connected being flowed with the collector pipeline 30 in drum 20 with flexible pipe 31 by jockey 29.When collector pipeline 30 is connected to vavuum pump, the inner space 63 of filter 22 keeps negative pressure, and namely suction walls both sides keep pressure reduction.Film 61 comprises micropore, and these micropores contact with water and form strong capillarity.This microporous filter media only allows liquid to flow through.When ceramic wafer 22 is immersed in slurry tank 9, filtrate is drawn by ceramic wafer 22, and filter cake 65 is formed on the surface of plate 22.The liquid or the filtrate that enter central interior space 63 are then sent in collector pipeline along filtrate pipe 31, then from drum 20 out.Inner space 64 can be open spaces, or it can be filled with bulk material, and this bulk material is used for the structure of reinforcement plate.Due to its granular character, this material can not hinder the flowing of the liquid entering central interior space 63, because bulk material does not exist larger resistance to liquid flow.Inner space 63 can also comprise support component or partition wall, in order to the structure of further reinforcement plate 22.The edge 64 of plate can strengthen by means of glazing (glazing).
When the row of filtering table 21 rotates, the plate 22 of each dish 22 is moved into and by groove 9.Therefore, during the often circle of dish 21 rotates, each filter 22 experiences four different process stages or section.At filter cake formation stages, when plate 22 is through slurry, liquid flows through plate 22, forms filter cake over the surface of the panel, as shown in Figure 7 A.After plate 22 leaves groove 9, plate enters filtration cakes torrefaction stage (as shown in Figure 7 B).If need to clean filter cake, then carry out filter cake cleaning when drying stage starts.In the filter cake discharge stage shown in Fig. 7 C, filter cake is wiped off by ceramic scratch board, makes thinner filter cake stay (space between scraper plate and plate 22) on plate 22.Often enclosing recoil (backwash) stage or the section of rotation, with sufficiently high pressure, backwash liquid is oppositely pumped across plate, as illustrated in fig. 7d.Backflush liquid removes particle by liquid in the flowing of " from inside to outside " of membranous wall both sides, thus rinses out remaining filter cake, and the hole of cleaned filter plate.Suitable recoil runs for filter and the high dynamic capability of maintenance filter medium is vital.Kickback pressure scope can be that this depends on the size of application scenario and filtering table such as from about 0.9 bar until 2.5 bar.Or punching can be arranged down, make some filtrates turn back to filter, or use external water source.
But recoil can not remove whole residue.Although recoil, residue is still stayed in capillary filter, and this is by the performance of lasting sacrifice capillary filter.Covering of filter medium is determined according to the phenomenon of the channel jam causing liquid normally to flow through.Therefore, filter capacity loss and cake moisture increase can be observed.Covering of filter medium has an impact to filtration at once: filter medium resistance increases, and causes filtrate rate reduction, and filter cake is fully discharged and become more difficult.Therefore, filter capacity loss can be observed.
So as seen in figure 7e, filter 22 periodically can regenerate by means of one or more in three kinds of distinct methods, such as: (1) backwash, (2) Ultrasonic Cleaning, and (3) pickling.The flushing (pickling and Ultrasonic Cleaning) of combination is the most effective.The acid typical case being used to pickling comprises nitric acid and oxalic acid.At cleaning run duration, rest in the hole of filter or the material be absorbed on the surface of filter and impurity are eliminated, the function of filter is resumed.
Regeneration or wash phase can be reduced in the ability of filter and start lower than during predetermined value.Typically, can periodically regenerate, such as every day 1 to 3 times.In automatically processing, after disc filter reaches predetermined filtration time, system itself can be cleaned and be got back to automatic fitration operation after the washing.Regeneration or scavenging period typical case can be such as 40 minutes to 60 minutes.Typically, periodically regenerate, such as every day 1 to 3 times.In automatically processing, after disc filter reaches predetermined filtration time, system itself can be cleaned and be got back to automatic fitration operation after the washing.Regeneration or scavenging period are also the scheduled times.The time interval between regeneration, it set once when disc filter assembles first usually as the duration of regeneration.Backwash and enough regeneration frequently of operational excellence will ensure high average filtration ability.Regeneration intervals (between twice regeneration institute's elapsed time) has main impact to population mean filter capacity.Problem is, these scheduled times are not best scheduled time of the optimum performance for realizing disc filter usually.In addition, some filter operation personnel often may be reluctant regenerate filtration media, because filter can not produce filter cake during the regeneration period.
An aspect of of the present present invention is to provide a kind of disc filter, it comprises at least one pressure sensor, and described pressure sensor to be arranged in filtrate collection pipeline and to be configured to measure the backwashing pressure being reversed the cleaning fluid being pumped to filter during filtering table often encloses the backwash district of rotation via filtrate collection pipeline.The regeneration of filter automatically or manually can control based on measured backwashing pressure.
In one embodiment, filtrate collection pipeline comprises the special collector pipeline 30 being often drained through filter plate 22 of the same sector for the coaxial filtering table of continuous print 20, as described above and Fig. 2, shown in 3 and 4.For being often drained through filter plate 22, at least one backwashing pressure sensor is set.In fact, although all Special reverse flushing pressure sensor can be installed to obtain plate-specific pressure (plate-specificpressure) data for each filter 22, but, from the quantity of required pressure sensor, installation and installation work amount and overall cost consideration, this is unpractical.Typically, know that the backwashing pressure being such as often drained through filter plate is just enough.Possible the covering of independent filter can not make a significant impact the overall capacity of disc filter.Typically, being often drained through filter plate pressure sensor can be enough.When pressure sensor is positioned at bulging end, best effect can be realized.
In one embodiment, pressure sensor 32 can be arranged at least one in the filtrate pipe 31 be often drained through in filter plate, is preferably placed in the filtrate pipe 31 of the last filter 22 be often drained through in filter plate, as shown in Fig. 4,8A and 8B.Pressure sensor 32 can be connected to the T connector 33 be arranged in filtrate pipe 31, and the hose coupling 29 of filter is connected to corresponding collector pipeline 30 by described T connector.Pressure sensor 32 can serve as the transmitter producing the Voltage force signal changed along with the backwashing pressure be applied in filtrate pipe 31.Pressure sensor (being also called pressure transmitter or pressure transmitter) can utilize three kinds of electricity to export usually: millivolt, amplification voltage and 4-20mA electric current.Voltage force signal can be supplied to along slotted line 34 sensor controller 100 that will hereafter discussing.Backwashing pressure sensor 32 is installed advantageous particularly when being applied to the existing disc filter in factory according to backwashing pressure sensing of the present invention.
In one embodiment, as required, T connector 33 or another kind of joint can be integrated in filter 22, such as, can be integrated in the hose coupling 29 of filter 22, and this allows to install backwashing pressure sensor 32.When uneasiness anti-loaded flushing pressure sensor 32, the corresponding port of T connector or analog can be coupled with lid.
In one embodiment, filter 22 can be provided with backwashing pressure sensor 32.In one embodiment, the hose coupling 29 in filter 22 can be provided with piecing devices, such as, for connecting backwashing pressure sensor 32.
In one embodiment, at least one pressure sensor 32 can be arranged in the filtrate collection pipeline 30 be often drained through in filter plate 22.Pressure sensor 32 can be connected to the T connector 33 in filtrate collection pipeline 30 in of going barrel 20 end, as shown in Figure 9.
In one embodiment, the drum 20 of disc filter is provided with sensor control unit, and described sensor control unit is configured to monitor backwashing pressure sensor 32 when disc filter 10 runs.Figure 10 A is block diagram, show illustrative sensors control unit 100 and with the sensor on drum and the connection with the filter control unit 5 in the fixed part of disc filter.Figure 10 B shows the flow chart of the exemplary operation of sensor control unit 100.Sensor controller 100 can comprise processor (CPU) 101, and this processor is with being configured to program code stored and memory that is dynamic data.Such as, this processor 101 can be C series of programmable (C-programmable) microcontroller.The Voltage force signal (such as 4-20mA electric current) received along slotted line 34 from backwashing pressure sensor 32 can be connected to input block 102 and be read by processor 101.This input block 102 can be digital converter unit.In example controller, for being often drained through filter plate 22, arrange a backwashing pressure sensor 32, therefore input block 102 is connected to monitor 15 backwashing pressure sensors 32 (quantity of sector is 15).The digitlization input corresponding to these received 15 Voltage force signals can put on processor CPU101.Input block 102 can the unit of multiplexer type, makes processor 101 can read the Voltage force signal of a backwashing pressure sensor 32 every now and then.Processor 101 can send original backwashing pressure sensing data or pretreated backwashing pressure sensing data to disc filter unit 5 by output unit 104 or 105, send operating personnel's screen to or send control or the maintenance system of any correspondence to.
In one embodiment, processor 101 can send the maximum backwashing pressure measured during the backwash stage or surge pressure to disc filter unit 5 by output unit 104 or 105, sends operating personnel's screen to or send control or the maintenance system of any correspondence to.Maximum backwashing pressure can comprise the maximum backwashing pressure of maximum backwashing pressure in all backwashing pressure sensors 32 or each backwashing pressure sensor 32.
In one embodiment, filter run duration (step 202 in Figure 10 B) at disc filter 10, processor 101 can by means of pressure sensor 32, preferably by means of the pressure sensor monitoring for being often drained through filter plate 22 or the maximum backwashing pressure measured during the backwash stage or surge pressure (step 204).When meeting a certain standard (step 208), such as when maximum backwashing pressure or surge pressure reach certain level, the maximum backwashing pressure measured during the backwash stage or surge pressure can send to disc filter control unit 5 by output unit 104 or 105 by processor 101, send to operating personnel's screen or send to control or the maintenance system (step 210) of any correspondence.After step 210 sends backwashing pressure, this flow process can turn back to step 204.If do not meet this standard in a step 208, this flow process also can turn back to step 204.
In one embodiment, position sensor 107, preferred inclinometer, on the axle that can be arranged on drum 20 or cylinder 25, the sector (step 106 in Figure 10 B) of the sector detecting the coaxial filtering table of the continuous print carrying out backwash with the Angle Position according to dish 21 or the coaxial filtering table of continuous print measuring backwashing pressure.Output current 4-20mA from inclinometer 107 corresponds to the position (0-360 degree) of drum 20.Inclinometer output current can be received in input block 102 as an input, and input block 102 can provide digitized inclinometer current value for processor 101.When backwashing pressure is exported by output unit 104 or 105 (step 110 in Figure 10 B), processor 101 also can export the data of the sector of inclinometer signal or the filtering table corresponding to this backwashing pressure of similar instruction.
In many embodiment:, drum 20 can comprise other sensor, and be such as arranged in the loop 70 of the fracture for being detected filter plate 22 in filter 22, described sensor can also be connected to input block 102 or 103 and be read by processor 101.Processor 101 can send other sensor information to disc filter controller 9 by output unit 104 or 105, send operating personnel's screen to or send control or the maintenance system of any correspondence to.
In one embodiment, disc filter comprises induction power delivery unit 106, and it is arranged to be energized to the sensor controller 100 of drum 20 by means of the fixed part of induction power transmitting device from disc filter.Therefore, in drum 20, do not need the additional power supply of such as battery.
In one embodiment, induction power delivery unit 106 comprises the reaction transmitter be positioned on bulging sidepiece and the inducing receiver be positioned on the fixed part of disc filter, in order to signal to be inductively sent to the fixed part of disc filter from sensor controller 100.
In one embodiment, the wireless transmission medium of wireless transmitting set or other types can be adopted from sensor controller 100 signal to be sent to the fixed part of disc filter.
In one embodiment, electric current is adopted to connect fixed part signal being sent to disc filter from sensor controller 100.
In one embodiment, the induction slip ring 120 that induction power and signal transmission unit 106 comprise the framework 8 being attached to disc filter and be attached to drum 25 axle 25 around a pair induction semi-ring 124 and 125, as shown in figure 11.Slip ring 120 can comprise permanent magnet.Semi-ring 124 and 125 all can comprise the coil of the power supply being connected to sensor controller 100, and described coil is located in the ring-shaped shell of axle 25 surrounding attachment.When semi-ring 124 and 125 rotates in slip ring 120, respond to generation current for this power supply in coil, this power supply produces the service voltage being used for other circuit possible in controller unit 100 and drum.The coil of semi-ring 124 and the coil of semi-ring 125 can as respectively from the inductive transmitter of the signal of output unit 104 and output unit 105.When signal is output to the coil of semi-ring 124 from output unit, the electric current in emitter coil is correspondingly modulated, and this can be detected by the receiver coil in the inducing receiver 106A be arranged on slip ring 120.Inducing receiver 120 can send this signal to disc filter controller 5 along cable or analog further.Equally, when signal is output to the emitter coil of semi-ring 124 from output unit, the electric current in this coil is correspondingly modulated, and this can be detected by inducing receiver 106A.Thus, semi-ring 124 and 125 is utilized can to implement the transmission of binary channels induced signal.
An aspect of of the present present invention is the backwashing pressure optimization regeneration according to obtaining from backwashing pressure sensor 32.Figure 12 shows the flow chart that the regeneration according to exemplary embodiment is optimized.When disc filter 10 runs (step 302 in Figure 12), pressure sensor 32 follows the tracks of maximum backwashing pressure in pipeline 30 and 32 or backwashing pressure pulse, and operation is optimized in the regeneration in disc filter control unit 5 can receive (step 304) from the original backwashing pressure data of sensor control unit 100 or maximum backwashing pressure data.
When backwashing pressure peak value reaches a certain stress level or meet another standard (step 306), such as when the filter capacity of filter or permeability reduction are to when crossing low-level, disc filter control unit 5 automatically can forward regeneration mode to, especially forwards pickling pattern (step 308) to.In an alternative embodiment, the operating personnel of disc filter 10 can open regeneration mode (step 312) based on the notice that operating personnel's screen shows or data (step 310), especially pickling pattern.Therefore, according to an aspect of of the present present invention, the start-up time of new regeneration dynamically can set according to the actual average filter capacity of filter or actual average permeability.Can exactly and only just start regeneration when needed because the invention enables, so filter capacity and filtrate production can maintain higher level.
In regeneration mode, disc filter control unit 5 controls pickling system 7 and/or ultrasonic cleaning system 6, with remove rest on filter hole in or the material that is absorbed on the surface of filter and impurity, thus recover the function of filter.At the end of regeneration cycle, disc filter control unit 5 can return automatically to filter progress.Regeneration or scavenging period can be predetermined amount of time or dynamically can set for each regeneration cycle.
In one embodiment, regeneration or scavenging period can adjust (automatically or manually) based on the backwashing pressure Data Dynamic obtained from backwashing pressure sensor.Figure 13 shows the flow chart that the regeneration according to another exemplary embodiment is optimized.When regeneration cycle terminates and coil to filter (step 402) when operation restarts, disc filter rinses for the backwashing pressure data (step 404) be often drained through measured by filter plate during optimization starts to be received in backwash again, the value of such as pressure pulse.Measured backwashing pressure pulse can compare (step 406) with one or more limit or a claimed range.Described one or more limit is preferably lower than standards for recycling.If the backwashing pressure peak value after regeneration cycle too high (such as compared with limiting value), this may indicate regeneration cycle time too short and can not cleaned filter plate fully, effectively can not recover best filter capacity.Therefore, the recovery time next time regenerated is increased to realize good cleaning performance (step 408) possibly.Equally, if the backwashing pressure peak value after regeneration cycle too low (such as compared with limiting value), then this may indicate regeneration cycle time unnecessarily long, and the shorter recovery time may be enough to cleaned filter plate and the filter capacity required by recovery fully.Therefore, the recovery time next time regenerated is shortened (step 408) possibly.In an alternative embodiment, the operating personnel of disc filter 10 can adjust the recovery time (step 412) based on the notice that operating personnel's screen shows or data (step 410).After set-up procedure 408 or 412, the monitoring operation shown in Figure 12 can be continued.
In other words, if the permeability of ceramic wafer too high (time is long), this measure can reduce the recovery time (especially pickling time), if or the permeability of ceramic wafer too low, this measure can increase the recovery time.Thus, the increase of the control of plate permeability, the optimization of recovery time and output can be realized.Because the recovery time is optimized, the consumption of acid will reduce to minimum.
When the interval between regenerating and recovery time are both optimized, disc filter can obtain the largest production time.
The example of the backwashing pressure scope of conventional filters run duration can be that 0.1 bar is to 1.1 bar.Can the backwashing pressure threshold value of triggered replenishment pattern can be such as 1.2 bar.Can as the recovery time optimize target required by backwashing pressure scope can be such as 1.0 bar to 1.5 bar.
Control technology as herein described can be implemented by various device.Such as, these technology can be implemented in the combination in hardware (one or more device), in firmware (one or more device), in software (one or more module) or at them.For firmware or software, can be implemented by the module (such as, program, function etc.) performing function as herein described.Software code can be stored in any applicable processor/mechanized data storage medium or mnemon and to be performed by one or more processor.Data storage medium or mnemon can be implemented outward in processor or at processor, and in this case, data storage medium or mnemon can be attached to processor communicatedly via various means known in the art.In addition, the parts of system as herein described can rearrange and/or can parts outside supplementary quota, to promote to realize about the various aspects described in this, target, advantage etc., and the parts of system as herein described are not limited to the exact configuration of setting forth in given accompanying drawing, as it will be appreciated by those skilled in the art that.
When reading the application, it will be apparent to those skilled in the art that the present invention conceives can implement in every way.The present invention and embodiment are not limited to above-mentioned example, and it can change within the scope of claim.
Claims (22)
1. a rotary disk fil-ter equipment, especially a kind of capillarity disc filter, it comprises:
Going barrel, described going barrel is with the coaxial filtering table of multiple continuous print, and described filtering table is formed by multiple fan-shaped screen plate;
At least one pressure sensor, described pressure sensor configurations becomes to measure the backwashing pressure being reversed the cleaning fluid being pumped to filter during filtering table often encloses the backwash district of rotation via filtrate collection pipeline; And
Control system, described control system is configured to according to measured backwashing pressure and the regeneration of controlled filter plate.
2. equipment as claimed in claim 1, it comprises:
For holding the groove of granular materials suspension;
Described fan-shaped screen plate is circumferentially installed in a radial plane around the central longitudinal axis of described going barrel, to form corresponding filtering table;
The internal fluid communication of described filtrate collection pipeline and described filter;
Tumbler, described tumbler is used for rotating described going barrel around central longitudinal axis, each filter is displaced in described groove successively and from groove out;
Vacuum plant, described vacuum plant is in order to provide partial vacuum to filter collector pipeline and to described filter, so that by by described filtrate collection pipeline and the filter suction filtrate of suspension and the granular materials suspension in dry described groove, filtrate filter cake to be formed on described filter and to be removed from described filter during the Part I often enclosing rotation;
Cleaning device, described cleaning device is used for cleaning described filter with backwashing pressure by described collector pipeline and the reverse pumping cleaning fluid of filter during the Part II often enclosing rotation;
At least one pressure sensor, described pressure sensor configurations becomes to measure the backwashing pressure in described collector pipeline;
Controller, described controller is configured to monitoring from the backwashing pressure measured by least one pressure sensor described.
3. equipment as claimed in claim 1 or 2, wherein, described filtrate collection pipeline comprises the special collector pipeline being often drained through filter plate of the same sector for the coaxial filtering table of continuous print, and wherein, at least one pressure sensor described is included in each special collector at least one pressure sensor ducted, to be preferably incorporated in each special collector pipeline and to be positioned at a pressure sensor of an end of described going barrel.
4. the equipment according to any one of claim 1-3, wherein, described filtrate collection pipeline comprises the special collector pipeline being often drained through filter plate of the same sector for the coaxial filtering table of continuous print, and wherein, described filtrate collection pipeline comprises the special filtrate pipe for each filter, it is for being connected to corresponding collector pipeline by filter, at least one pressure sensor described be included in often be drained through in filter plate at least one described in pressure sensor in special filtrate pipe, be preferably incorporated in the pressure sensor in the special filtrate pipe of the last filter be often drained through in filter plate.
5. the equipment according to any one of claim 1-4, comprise controller, described controller is configured to monitor the peak value from the backwashing pressure of at least one pressure sensor described, and is configured to perform predetermined action when the peak value of measured backwashing pressure reaches predetermined threshold.
6. equipment as claimed in claim 5, comprises position sensor, preferred inclinometer, its provide the peak value measuring backwashing pressure to reach predetermined threshold that be drained through position data on filter plate.
7. the equipment according to any one of claim 5-6, wherein, described controller is arranged in the described going barrel of described disc filter equipment, and described equipment comprises induction power delivery unit, described induction power delivery unit is arranged to be energized to controller by means of the fixed part of induction power transmitting device from described disc filter equipment.
8. the equipment according to any one of claim 5-6, wherein, described controller is arranged in the described going barrel of described disc filter equipment, and described equipment comprises wireless signal delivery unit, preferred induced signal delivery unit, it is arranged to the fixed part transmission signal from described controller to described equipment.
9. one kind for controlling the method for rotary disk fil-ter, especially capillarity disc filter, described rotary disk fil-ter comprises going barrel, described going barrel is with the coaxial filtering table of multiple continuous print, and described filtering table is formed by multiple fan-shaped screen plate, and the method comprises:
Measure the backwashing pressure being reversed the cleaning fluid being pumped to described filter during described filtering table often encloses the backwash district of rotation via collector pipeline; And
The regeneration of described filter is controlled according to measured backwashing pressure.
10. method as claimed in claim 9, wherein, rate-determining steps comprises: if the peak value of measured backwashing pressure reaches predetermined threshold, then control described rotary disk fil-ter and enter regeneration operational mode.
11. methods as described in claim 9 or 10, wherein, rate-determining steps comprises: if the peak value of measured backwashing pressure reaches predetermined threshold, then notify the operating personnel of rotary disk fil-ter, so that rotary disk fil-ter equipment enters regeneration operational mode described in alert Non-follow control.
12. methods according to any one of claim 9-11, wherein, rate-determining steps comprises: the duration controlling the independence regeneration of described filter according to measured backwashing pressure.
13. methods according to any one of claim 9-12, wherein, rate-determining steps comprises: according to measured backwashing pressure control each independently regenerate between the time interval.
14. methods according to any one of claim 9-13, wherein, rate-determining steps comprises: optimize the average filtration ability of described filter and/or minimize the recovery time.
15. methods according to any one of claim 9-14, wherein, rate-determining steps comprises: the filtrate filter cake production time optimizing described rotary disk fil-ter equipment.
16. as arbitrary in claim 9-15 as described in method, wherein, rate-determining steps comprises:
The permeability of described filter is assessed according to measured backwashing pressure;
If the permeability assessed is less than first threshold, then increase the duration of independent regeneration;
If the permeability assessed is less than Second Threshold, then reduce the duration of independent regeneration.
17. methods according to any one of claim 9-16, wherein, rate-determining steps comprises:
The permeability of described filter is assessed according to measured backwashing pressure;
If according to assessed permeability, at least one in described filter is still blocked after several regenerations, then notify the operating personnel of rotary disk fil-ter.
18. methods according to any one of claim 9-17, wherein, measuring process comprises: the backwashing pressure being often drained through filter plate measuring the same sector of the coaxial filtering table of continuous print respectively.
19. methods as claimed in claim 18, wherein, measuring process comprises: measure the position of the last filter be often drained through in filter plate or the backwashing pressure near this position.
20. methods according to any one of claim 9-19, comprising: based on the Angle Position of filtering table when measuring, determine the measured sector of the coaxial filtering table of continuous print.
21. 1 kinds of control systems, it is for implementing the control method according to any one of claim 9-20.
22. 1 kinds of computer programs, it comprises the program code for performing the method according to any one of claim 9-20 when described computer program runs on one or more computer or processor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FI2013/050426 WO2014170533A1 (en) | 2013-04-17 | 2013-04-17 | Disc filter apparatus and method for controlling a disc filter |
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|---|---|
| CN105209142A true CN105209142A (en) | 2015-12-30 |
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ID=51730859
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| CN201380076371.1A Pending CN105209142A (en) | 2013-04-17 | 2013-04-17 | Disc filter apparatus and method for controlling a disc filter |
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| Country | Link |
|---|---|
| CN (1) | CN105209142A (en) |
| AU (1) | AU2013387127B9 (en) |
| BR (1) | BR112015026033B1 (en) |
| CA (1) | CA2908842C (en) |
| EA (1) | EA030903B1 (en) |
| WO (1) | WO2014170533A1 (en) |
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| CN105999818A (en) * | 2016-07-06 | 2016-10-12 | 中信重工机械股份有限公司 | Discharging control device and method of disk filter |
| CN105999818B (en) * | 2016-07-06 | 2018-11-30 | 中信重工机械股份有限公司 | A kind of discharge control apparatus and method of disk filter |
| CN108744678A (en) * | 2018-08-02 | 2018-11-06 | 中冶北方（大连）工程技术有限公司 | Filter processing capacity, which can be improved, reduces the disc type filter device of filtering energy consumption |
| CN108744678B (en) * | 2018-08-02 | 2023-12-15 | 中冶北方（大连）工程技术有限公司 | Disc type filtering device capable of improving processing capacity of filter and reducing filtering energy consumption |
| CN109179881A (en) * | 2018-09-28 | 2019-01-11 | 广州亿骏科技有限公司 | A kind of mining filter device carrying out stable emissions water resource |
| CN110152381A (en) * | 2019-04-12 | 2019-08-23 | 中信重工机械股份有限公司 | A kind of filter disc structure of disk filter |
| CN110152381B (en) * | 2019-04-12 | 2021-06-22 | 中信重工机械股份有限公司 | Filter disc structure of disc filter |
| CN114849339A (en) * | 2022-05-18 | 2022-08-05 | 马鞍山格林环保科技有限公司 | Disc type vacuum filter with automatic liquid drainage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2908842C (en) | 2018-01-02 |
| CA2908842A1 (en) | 2014-10-23 |
| AU2013387127B9 (en) | 2017-04-13 |
| WO2014170533A1 (en) | 2014-10-23 |
| BR112015026033A2 (en) | 2017-07-25 |
| AU2013387127A1 (en) | 2015-11-12 |
| EA030903B1 (en) | 2018-10-31 |
| EA201591778A1 (en) | 2016-04-29 |
| AU2013387127B2 (en) | 2016-11-10 |
| BR112015026033B1 (en) | 2021-12-14 |
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