CN108342919A - Polydisc directly clear filter and its application method - Google Patents
Polydisc directly clear filter and its application method Download PDFInfo
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- CN108342919A CN108342919A CN201810392053.0A CN201810392053A CN108342919A CN 108342919 A CN108342919 A CN 108342919A CN 201810392053 A CN201810392053 A CN 201810392053A CN 108342919 A CN108342919 A CN 108342919A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
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Abstract
Directly clear filter and its application method are related to the filtration arts such as trade effluent, mthod of white water from paper making to polydisc of the present invention, more particularly to polydisc directly clear filter and its application method, including shell and the supporting rack being arranged in shell, the top of the shell one side is provided with a plain boiled water water inlet pipe, corresponding another side lower part is provided with a drainpipe on shell, several supporting racks being mutually parallel are provided between plain boiled water water inlet pipe and drainpipe；The present invention be it is a kind of for papermaking single machine platform exploitation white water recycling, fiber recovery novel device, the equipment utilization metallic fiber filter disc, realize that fiber recovery reaches 99.5% or more, almost without the loss of fiber, the clarity of super clear filtrate is up to 99% or more, and the suspension content in super clear filtrate is less than 20mg/L.The present invention evaded traditional polydisc because disc quantity, strainer clogging cause filtrate water not enough lead to problems such as vacuum water leg formed poor, vacuum force it is small caused by filter cake is thin, mass dryness fraction is poor, stripping is difficult.
Description
Technical field
The present invention relates to the filtration arts such as trade effluent, mthod of white water from paper making, and in particular to polydisc directly clear filter and its use
Method.
Background technology
Contain a large amount of fiber fines and chemical residues object in the plain boiled water generated in traditional paper-making process, enterprise is discharging
A large amount of fund is spent on trade effluent, is carried out slurry recycling and sewage disposal, is all huge consuming in material resources, financial resources.
Papermaking enterprise mostly uses greatly the recycling that more disk fibre recovery machines carry out fiber and water in plain boiled water at present.More disk fibre recovery machines
By separating and filtering technology, by water fiber and water detach, paper machine white water processing is by fiber cushion by thin to thick production
Raw three kinds of different liquid, are turbid filtrate, clear filtrate, super clear filtrate respectively, and turbid filtrate is starched for paper mechanism；Clear filtrate is for protecting
Demonstrate,prove the sealing water of paper mechanism slurry；Super clear filtrate can be used for the normal pressure of paper machine, high-pressure wash；And the fiber separated is for making
The secondary use of paper.By this process, solve that traditional paper grade (stock) water is big, and the costly problem of water process reaches environmental protection
Clean manufacturing.
More disk fibre recovery machines on the market mostly use the polyester mesh bag of polyester material braiding, but meeting in use at present
There is following drawback：Polyester material mesh bag is wrapped in Dropbox by heat shrink, because of its material reason, easily leads to polyester webs
Uneven, mesh outstanding problem not of uniform size is shunk in hole, poor to filtering accuracy occur；And also using heat tightening installation method
Can make mesh bag occur bulge, fall slurry, water filtering performance weakens, the problems such as filtering water is poor.Polyester webs in the long-term use by
Slurry impurity frictional influence easily causes polyester twine initial line plucking, hooks fiber and blocks mesh, so that water filtering performance is reduced, the energy
Consumption increases, and long-time service easy tos produce bulge, wrinkles, and stripping difficulty increases, and service efficiency can be reduced to new net filtration efficiency
More than half；It is cleaned to ensure that the high-air-permeability producer of mesh mostly uses high pressure water, by what is deposited in polyester mesh screen
Impurity is cleaned, and dredges mesh, but high pressure water is easy that polyester mesh bag is made to rupture because pressure is excessive, reduces the utilization rate of equipment.
Three most basic steps are to collect, handle and dispose in waste water of paper mill processing system, major part papermaking at present
Using centralized processing pattern, this just needs to be equipped with corresponding aqueduct and boost in pressure pump house for factory, and according to demand,
It needs processing equipment being arranged 9 meters of high positions, by waste water lifting to processing equipment, the processed water of processing equipment passes through
Pipeline flows into pond, then during this, processed water can form " water leg " in pipeline, is carried out in " water leg " vacuum action
Dehydration, for slurry into the dipped filter weir plate of feed box, flow direction is opposite with the steering of filter disc to control liquid level by rotating speed.Sector filter plate submerges
In the slurry, filtrate flows into fanning strip and mandrel, and the air being displaced is discharged by the pipeline that valve is communicated with air.Papermaking
Paper pulp fiber pulp concentration in production process and white water recycle filtering, as the washing in paper for daily use or waste paper removal process is net
Pulp concentration after change collects fiber fines and filler in white water recycle.
But more disk fibre recovery machine FAQs：Strainer be easy it is bad, every time shut down need to change, have lower productivity,
Filter liquor concentration is too high, causes a large amount of stock losses, increases production cost；Dehydrating effect is bad, and pulp layer is too thin, or does not become
Pulp layer, more disk discs do not wash clean clearly, and high-pressure nozzle is frequently occluded, maintenance of machine somewhat expensive.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of simple in structure, easy to operate, can greatly improve filter efficiency
And filtering accuracy, service life is long, improves waste treatment capacity and production effect, and the polydisc for reducing production cost directly filters clearly
Machine device and its application method.
Polydisc of the present invention directly clear filter, including shell and the supporting rack that is arranged in shell, the shell one side
Top is provided with a plain boiled water water inlet pipe, and corresponding another side lower part is provided with a drainpipe, plain boiled water water inlet pipe on shell
It is provided with several supporting racks being mutually parallel between drainpipe, the filter of several metallic fibers is both provided on support frame as described above
Disk, the metallic fiber filter disc are mutually arranged in parallel；
The shell inner top is fixedly installed number and location filter cake corresponding with metallic fiber filter disc number and location
Stripping off device；
The housing bottom is provided with one and connects grout hopper, described to connect grout hopper and shell is interconnected, and connects and is provided with a stirring in grout hopper
Device, the agitating device stretching connect grout hopper and are externally connected with a driving motor；
It is provided with pneumatic control valve on the plain boiled water water inlet pipe, connects and is provided with a blowing pipeline in grout hopper, discharge pipe road is arranged
There is a blowing valve；
A turbid white water pipe is additionally provided on the shell.
Preferably, metallic fiber filter disc includes spacer screen and veil and metal fiber felt, several are evenly equipped on the spacer screen
Filter hole is also equipped with several filter hole on veil, and the spacer screen, veil and metal fiber felt overlap, and stationary phase
Even, the number that is connected to of the online filter hole of filter hole knead dough and metal fiber felt on spacer screen is adjusted, the filtering essence of ripple Dropbox is changed
Degree, the wire side of the spacer screen, veil and metal fiber felt is corrugated, and material is stainless (steel) wire.
Preferably, agitating device includes rotating and sealing the rotation main shaft that is connected with doctor-roll, the rotation main shaft with it is even
It is equal to starch roller diameter, there are three stirring rod, the central axis of the stirring rod by the connection of several connecting rods on rotation main shaft
With rotation main shaft centerline axis parallel, and the central axis of three stirring rods be distributed on rotation main shaft central axis where circle
On the circle of the heart, the doctor-roll is connected with driving motor.
Preferably, filter cake stripping off device includes removing water pump and the stripping water pipe that is connected with water pump, on the stripping water pipe
It is provided with quantity nozzle corresponding with metallic fiber filter disc quantity, the nozzle is towards metallic fiber filter disc.
Preferably, it is provided with a pneumatic control valve on plain boiled water water inlet pipe.
Preferably, an industrial equipment is socketed with outside shell to walk on stage staircase, the industrial equipment is walked on stage and is also associated on staircase
One climbing inclined ladder.
A kind of application method of polydisc directly clear filter, includes the following steps：
The first step, by polydisc, directly clear filter is connected by bed course slurry pipeline with forebay is destroyed, and pad is arranged on bed course slurry pipeline
Layer slurry valve, bed course slurry valve and copies on pipeline between forebay to be also connected with by kowtowing after-bay stock pump and kowtows after-bay；By discharge pipe
Road is connected with forebay is kowtowed, and blowing valve is arranged on discharge pipe road, kowtow forebay by double plate mill with kowtow after-bay and be connected；It will be turbid white
Water pipe is connected with plain boiled water tower or white water chest, and turbid white water pump is arranged in turbid white water pipe；Plain boiled water tower or white water chest by plain boiled water into
Directly clear filter is connected water pipe with polydisc, and water supply pump is provided on plain boiled water water inlet pipe；Drainpipe is connected with a gas by filtrate pump
Triple valve is moved, is also associated with water pipe and return pipe on Pneumatic three-way valve, water pipe is connected with clear water reserviors, return pipe and plain boiled water
Water inlet pipe is connected；Stripping water pump is connected with clear water reserviors；
Second step, plain boiled water feed liquor, plain boiled water enter polydisc directly in the shell of clear filter by plain boiled water water inlet pipe, plain boiled water inlet pipeline
On pneumatic control valve, control shell words spoken by an actor from offstage aqueous position concurrently opens bed course slurry valve and agitating device, and bed course starches valve
The door opening time grows short-sighted bed course slurry actual requirement and carries out time control, realizes that directly clear filter supplies slurry to polydisc；
Third walks, filtrate, and after plain boiled water reaches setting liquid level in shell, control agitating device stops stirring, opens on drainpipe
Filtrate pump is connected with Pneumatic three-way valve on filtrate pump；
When the filter cake thickness on metallic fiber filter disc is less than 1cm, the filtrate of filtrate pump outflow is entered back by Pneumatic three-way valve
Water pipe, and the plain boiled water water inlet pipe by being connected with return pipe enters polydisc directly clear filter, realizes cycle in system；
When the filter cake thickness on metallic fiber filter disc is more than 1cm and is less than 3cm, the filtrate of filtrate pump outflow passes through Pneumatic three-way
Valve enters water pipe, and is entered in clear water reserviors by water pipe；
When the filter cake thickness on metallic fiber filter disc is more than 3cm, the pneumatic control valve closing on plain boiled water inlet pipeline, turbid plain boiled water
Pump is opened, and liquid of the polydisc directly in clear filter is entered by turbid white water pipe in plain boiled water tower or white water chest；When liquid level is low in shell
When setting value, turbid white water pump is stopped；
4th step, filter cake stripping, turbid white water pump stopping action, also stopping acts filtrate pump, the air inlet in filtrate pump inlet ductwork
Valve automatically turns on, filter cake stripping water pump and stirring automatically turn on, filter cake stripping, the air inlet in filtrate pump inlet ductwork after the completion
Valve is automatically closed, removes water pump stopping；
5th step, discharging slurry, stripping water pump are stopped, and blowing valve opening is put when liquid level is less than setting value in shell
Slurry valve is closed；
6th step, blowing valve are closed, and the pneumatic control valve on plain boiled water inlet pipeline is opened；Second step is repeated again to the 5th step
Step.
The present invention be it is a kind of for papermaking single machine platform exploitation white water recycling, fiber recovery novel device, the equipment profit
With metallic fiber filter disc, realize that fiber recovery reaches 99.5% or more, almost without the loss of fiber, the clarification of super clear filtrate
Degree is up to 99% or more, and the suspension content in super clear filtrate is less than 20mg/L.
Plain boiled water is handled with the present invention, the liquid of outflow is super clear filtrate entirely, this super clear filtrate is fully able to substitute clear
Water, for paper machine high-low pressure spray, mechanical seal, wind turbine is cooling, petrol station is cooling, dispersant dissolved dilution, reduces rinse dosage.
The present invention configures for single machine platform, avoids workshop board mostly and paper type, slurry are different, plain boiled water centralized recovery,
Reuse caused by the paste composition complexity recycled is difficult.
The present invention is positioned over slurrying upstairs according to technological process, and easy to operate, maintenance clean is conveniently.Recycle slurry directly into
Forebay is kowtowed, by defibrination again, fiber fines obtain further wire-dividing broom purification, and Hydrogen bonding forces increase between fiber when paper sheet formation
By force, workshop dust is reduced.
The present invention has evaded traditional polydisc because equipment is cleaned difficult, and system, which is also easy to produce rotten slurry, leads to that product stain is more, hole eye
More quality problems.
The present invention has evaded traditional polydisc because the problems such as filter bag installation is elastic inconsistent, distributing valve is poorly sealed leads to filtrate
Quality it is unstable.
The present invention, which has evaded traditional polydisc filtrate water caused by disc quantity, strainer clogging, not enough leads to vacuum water
The problems such as filter cake is thin, mass dryness fraction is poor caused by that leg is formed is poor, vacuum force is small, stripping is difficult.
Economic benefit and social benefit of the present invention are notable, and compared with traditional polydisc, ton paper power consumption reduces by 40 kw.h or so,
Ton paper water consume reduces by 8 cubic metres or so, and ton paper sewage load reduces 8 cubic metres or so, and ton paper quantity of wastewater effluent reduces 8
Cubic meter or so.
Description of the drawings
Fig. 1 is polydisc directly clear filtering machine structure schematic diagram.
Fig. 2 is polydisc of the present invention directly clear filter stereogram.
Fig. 3 is metallic fiber filter disc structure schematic diagram.
Fig. 4 is the A-A sectional views in Fig. 3.
Fig. 5 be polydisc directly the use of clear filter when connection relationship diagram.
Reference numeral：1- shells, 2- metallic fiber filter discs, 3- nozzles, 4- connect grout hopper, 5- agitating devices, 6- blowing pipelines,
7- industrial equipments are walked on stage staircase, and 8- climbs inclined ladder, 9- veils, 10- filter hole, 11- spacer screens.
Specific implementation mode
Polydisc of the present invention directly clear filter, including shell 1 and the supporting rack that is arranged in shell 1,1 one side of the shell
Top be provided with a plain boiled water water inlet pipe, corresponding another side lower part is provided with a drainpipe, plain boiled water water inlet on shell 1
Several supporting racks being mutually parallel are provided between pipe and drainpipe, several metallic fibers are both provided on support frame as described above
Filter disc 2, the metallic fiber filter disc 2 are mutually arranged in parallel；
1 inner top of the shell is fixedly installed number and location filter corresponding with 2 number and location of metallic fiber filter disc
Cake stripping off device；
1 bottom of the shell is provided with one and connects grout hopper 4, described to connect grout hopper 4 and shell 1 is interconnected, and connects in grout hopper 4 and is provided with one
Agitating device 5, the stretching of the agitating device 5 connect grout hopper 4 and are externally connected with a driving motor；
It is provided with pneumatic control valve on the plain boiled water water inlet pipe, connects and is provided with a blowing pipeline 6 in grout hopper 4, set on blowing pipeline 6
It is equipped with a blowing valve；
A turbid white water pipe is additionally provided on the shell 1.
Metallic fiber filter disc 2 includes spacer screen 11 and veil 9 and metal fiber felt, several mistakes are evenly equipped on the spacer screen 11
Filter opening 10 is also equipped with several filter hole 10 on veil 9, and the spacer screen 11, veil 9 and metal fiber felt overlap, and
It is fixedly linked, adjusts the number that is connected to of filter hole 10 and filter hole 10 on veil 9 and metal fiber felt on spacer screen 11, change ripple
The wire side of the filtering accuracy of Dropbox, the spacer screen 11, veil 9 and metal fiber felt is corrugated, and material is stainless (steel) wire.
Agitating device 5 includes rotating and sealing the rotation main shaft being connected with doctor-roll, and the rotation main shaft and doctor-roll are straight
Diameter is equal, and by the connection of several connecting rods, there are three stirring rod, the central axis of the stirring rod and rotations on rotation main shaft
The centerline axis parallel of main shaft, and the central axis of three stirring rods is distributed on the circle in the central axis place center of circle of rotation main shaft
On, the doctor-roll is connected with driving motor.
Filter cake stripping off device includes the stripping water pipe removed water pump and be connected with water pump, and number is provided on the stripping water pipe
Amount nozzle 3 corresponding with 2 quantity of metallic fiber filter disc, the nozzle 3 is towards metallic fiber filter disc 2.
A pneumatic control valve is provided on plain boiled water water inlet pipe.
It is socketed with an industrial equipment outside shell 1 to walk on stage staircase 7, the industrial equipment, which is walked on stage, to be also associated with one on staircase 7 and climb
Climb inclined ladder 8.
The application method of a kind of polydisc directly clear filter, which is characterized in that include the following steps：
The first step, by polydisc, directly clear filter is connected by bed course slurry pipeline with forebay is destroyed, and pad is arranged on bed course slurry pipeline
Layer slurry valve, bed course slurry valve and copies on pipeline between forebay to be also connected with by kowtowing after-bay stock pump and kowtows after-bay；By discharge pipe
Road 6 is connected with forebay is kowtowed, and blowing valve is arranged on blowing pipeline 6, kowtow forebay by double plate mill with kowtow after-bay and be connected；It will be turbid
White water pipe is connected with plain boiled water tower or white water chest, and turbid white water pump is arranged in turbid white water pipe；Plain boiled water tower or white water chest pass through plain boiled water
Directly clear filter is connected water inlet pipe with polydisc, and water supply pump is provided on plain boiled water water inlet pipe；Drainpipe is connected with one by filtrate pump
Pneumatic three-way valve is also associated with water pipe and return pipe on Pneumatic three-way valve, and water pipe is connected with clear water reserviors, return pipe with it is white
Water water inlet pipe is connected；Stripping water pump is connected with clear water reserviors；
Second step, plain boiled water feed liquor, plain boiled water enter polydisc directly in the shell 1 of clear filter by plain boiled water water inlet pipe, plain boiled water water inlet pipe
Bed course slurry valve and agitating device 5, bed course are concurrently opened in the pneumatic control valve of road, 1 words spoken by an actor from offstage aqueous position of control shell
The slurry valve opening time grows short-sighted bed course slurry actual requirement and carries out time control, realizes that directly clear filter supplies slurry to polydisc
Material；
Third walks, filtrate, and after plain boiled water reaches setting liquid level in shell 1, control agitating device 5 stops stirring, opens on drainpipe
Filtrate pump, be connected with Pneumatic three-way valve on filtrate pump；
When the filter cake thickness on metallic fiber filter disc 2 is less than 1cm, the filtrate of filtrate pump outflow is entered back by Pneumatic three-way valve
Water pipe, and the plain boiled water water inlet pipe by being connected with return pipe enters polydisc directly clear filter, realizes cycle in system；
When the filter cake thickness on metallic fiber filter disc 2 is more than 1cm and is less than 3cm, the filtrate of filtrate pump outflow passes through pneumatic three
Port valve enters water pipe, and is entered in clear water reserviors by water pipe；
When the filter cake thickness on metallic fiber filter disc 2 is more than 3cm, the pneumatic control valve on plain boiled water inlet pipeline closes, is turbid white
Water pump is opened, and liquid of the polydisc directly in clear filter is entered by turbid white water pipe in plain boiled water tower or white water chest；When liquid level in shell 1
When less than setting value, turbid white water pump is stopped；
4th step, filter cake stripping, turbid white water pump stopping action, also stopping acts filtrate pump, the air inlet in filtrate pump inlet ductwork
Valve automatically turns on, filter cake stripping water pump and stirring automatically turn on, filter cake stripping, the air inlet in filtrate pump inlet ductwork after the completion
Valve is automatically closed, removes water pump stopping；
5th step, discharging slurry, stripping water pump are stopped, blowing valve opening, when liquid level is less than setting value in shell 1,
Blowing valve is closed；
6th step, blowing valve are closed, and the pneumatic control valve on plain boiled water inlet pipeline is opened；Second step is repeated again to the 5th step
Step.
Corresponding logic control circuit may be used in the startup and closing of each valve and pump or controller is realized automatically
Change control.
The present invention be it is a kind of for papermaking single machine platform exploitation white water recycling, fiber recovery novel device, the equipment profit
With metallic fiber filter disc 2, realize that fiber recovery reaches 99.5% or more, almost without the loss of fiber, the clarification of super clear filtrate
Degree is up to 99% or more, and the suspension content in super clear filtrate is less than 20mg/L.
Plain boiled water is handled with the present invention, the liquid of outflow is super clear filtrate entirely, this super clear filtrate is fully able to substitute clear
Water, for paper machine high-low pressure spray, mechanical seal, wind turbine is cooling, petrol station is cooling, dispersant dissolved dilution, reduces rinse dosage.
The present invention configures for single machine platform, avoids workshop board mostly and paper type, slurry are different, plain boiled water centralized recovery,
Reuse caused by the paste composition complexity recycled is difficult.
The present invention is positioned over slurrying upstairs according to technological process, and easy to operate, maintenance clean is conveniently.Recycle slurry directly into
Forebay is kowtowed, by defibrination again, fiber fines obtain further wire-dividing broom purification, and Hydrogen bonding forces increase between fiber when paper sheet formation
By force, workshop dust is reduced.
The present invention has evaded traditional polydisc because equipment is cleaned difficult, and system, which is also easy to produce rotten slurry, leads to that product stain is more, hole eye
More quality problems.
The present invention has evaded traditional polydisc because the problems such as filter bag installation is elastic inconsistent, distributing valve is poorly sealed leads to filtrate
Quality it is unstable.
The present invention, which has evaded traditional polydisc filtrate water caused by disc quantity, strainer clogging, not enough leads to vacuum water
The problems such as filter cake is thin, mass dryness fraction is poor caused by that leg is formed is poor, vacuum force is small, stripping is difficult.
Economic benefit and social benefit of the present invention are notable, and compared with traditional polydisc, ton paper power consumption reduces by 40 kw.h or so,
Ton paper water consume reduces by 8 cubic metres or so, and ton paper sewage load reduces 8 cubic metres or so, and ton paper quantity of wastewater effluent reduces 8
Cubic meter or so.
Claims (7)
1. polydisc directly clear filter, including shell（1）And it is arranged in shell（1）Interior supporting rack, which is characterized in that the shell
（1）The top of one side is provided with a plain boiled water water inlet pipe, shell（1）Upper corresponding another side lower part is provided with a draining
Pipe, is provided with several supporting racks being mutually parallel, if being both provided on support frame as described above between plain boiled water water inlet pipe and drainpipe
Dry metallic fiber filter disc（2）, the metallic fiber filter disc（2）Mutually it is arranged in parallel；
The shell（1）Inner top be fixedly installed number and location with metallic fiber filter disc（2）Number and location are corresponding
Filter cake stripping off device；
The shell（1）Bottom is provided with one and connects grout hopper（4）, described to connect grout hopper（4）And shell（1）It is interconnected, connects grout hopper（4）
Inside it is provided with an agitating device（5）, the agitating device（5）Stretching connects grout hopper（4）It is externally connected with a driving motor；
It is provided with pneumatic control valve on the plain boiled water water inlet pipe, connects grout hopper（4）On be provided with a blowing pipeline（6）, blowing pipeline
（6）On be provided with a blowing valve；
The shell（1）On be additionally provided with a turbid white water pipe.
2. polydisc as described in claim 1 directly clear filter, which is characterized in that the metallic fiber filter disc（2）Including spacer screen
（11）And veil（9）And metal fiber felt, the spacer screen（11）On be evenly equipped with several filter hole（10）, veil（9）On also set
It is equipped with several filter hole（10）, the spacer screen（11）, veil（9）It overlaps, and is fixedly linked with metal fiber felt, adjust
Spacer screen（11）Upper filter hole（10）And veil（9）Upper filter hole（10）With the number that is connected to of metal fiber felt, change ripple Dropbox
Filtering accuracy, the spacer screen（11）, veil（9）Wire side with metal fiber felt is corrugated, and material is stainless (steel) wire.
3. polydisc as claimed in claim 2 directly clear filter, which is characterized in that the agitating device（5）Including turning with doctor-roll
Rotation main shaft dynamic and that sealing is connected, the rotation main shaft is equal with homogenate roller diameter, rotates on main shaft through several connections
There are three stirring rod, the centerline axis parallel of the central axis and rotation main shaft of the stirring rod, and three stirring rods for bar connection
Central axis be distributed on rotation main shaft central axis where the center of circle circle on, the doctor-roll is connected with driving motor.
4. polydisc as claimed in claim 3 directly clear filter, which is characterized in that the filter cake stripping off device include stripping water pump and
The stripping water pipe being connected with water pump is provided with quantity and metallic fiber filter disc on the stripping water pipe（2）The corresponding spray of quantity
Mouth（3）, the nozzle（3）Towards metallic fiber filter disc（2）.
5. polydisc as claimed in claim 4 directly clear filter, which is characterized in that be provided with one on the plain boiled water water inlet pipe and pneumatic adjust
Save valve.
6. polydisc as claimed in claim 5 directly clear filter, which is characterized in that the shell（1）It is socketed with an industrial equipment outside
It walks on stage staircase（7）, the industrial equipment walks on stage staircase（7）On be also associated with a climbing inclined ladder（8）.
7. a kind of application method of polydisc as claimed in any one of claims 1 to 6 directly clear filter, which is characterized in that including with
Lower step：
The first step, by polydisc, directly clear filter is connected by bed course slurry pipeline with forebay is destroyed, and pad is arranged on bed course slurry pipeline
Layer slurry valve, bed course slurry valve and copies on pipeline between forebay to be also connected with by kowtowing after-bay stock pump and kowtows after-bay；By discharge pipe
Road（6）It is connected with forebay is kowtowed, and in blowing pipeline（6）Upper setting blowing valve, kowtow forebay by double plate mill with kowtow after-bay and be connected；
Turbid white water pipe is connected with plain boiled water tower or white water chest, and turbid white water pump is set in turbid white water pipe；Plain boiled water tower or white water chest pass through
Directly clear filter is connected plain boiled water water inlet pipe with polydisc, and water supply pump is provided on plain boiled water water inlet pipe；Drainpipe is connected by filtrate pump
There is a Pneumatic three-way valve, water pipe and return pipe are also associated on Pneumatic three-way valve, water pipe is connected with clear water reserviors, return pipe
It is connected with plain boiled water water inlet pipe；Stripping water pump is connected with clear water reserviors；
Second step, plain boiled water feed liquor, plain boiled water enter the shell of polydisc directly clear filter by plain boiled water water inlet pipe（1）It is interior, plain boiled water water inlet
Pneumatic control valve on pipeline controls shell（1）Concurrently open bed course slurry valve and agitating device in words spoken by an actor from offstage aqueous position
（5）, the bed course slurry valve opening time grows short-sighted bed course slurry actual requirement and carries out time control, realizes to polydisc directly clear filter
Supply slurry；
Third walks, filtrate, shell（1）After interior plain boiled water reaches setting liquid level, agitating device is controlled（5）Stop stirring, opens draining
Filtrate pump on pipe is connected with Pneumatic three-way valve on filtrate pump；
When metallic fiber filter disc（2）On filter cake thickness be less than 1cm when, filtrate pump outflow filtrate entered by Pneumatic three-way valve
Return pipe, and the plain boiled water water inlet pipe by being connected with return pipe enters polydisc directly clear filter, realizes cycle in system；
When metallic fiber filter disc（2）On filter cake thickness be more than 1cm and less than 3cm when, filtrate pump outflow filtrate pass through it is pneumatic
Triple valve enters water pipe, and is entered in clear water reserviors by water pipe；
When metallic fiber filter disc（2）On filter cake thickness when being more than 3cm, the pneumatic control valve on plain boiled water inlet pipeline closes, is turbid
White water pump is opened, and liquid of the polydisc directly in clear filter is entered by turbid white water pipe in plain boiled water tower or white water chest；Work as shell（1）It is interior
When liquid level is less than setting value, turbid white water pump is stopped；
4th step, filter cake stripping, turbid white water pump stopping action, also stopping acts filtrate pump, the air inlet in filtrate pump inlet ductwork
Valve automatically turns on, filter cake stripping water pump and stirring automatically turn on, filter cake stripping, the air inlet in filtrate pump inlet ductwork after the completion
Valve is automatically closed, removes water pump stopping；
5th step, discharging slurry, stripping water pump are stopped, and blowing valve opening works as shell（1）Interior liquid level is less than setting value
When, blowing valve is closed；
6th step, blowing valve are closed, and the pneumatic control valve on plain boiled water inlet pipeline is opened；Second step is repeated again to the 5th step
Step.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392053.0A CN108342919A (en) | 2018-04-27 | 2018-04-27 | Polydisc directly clear filter and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392053.0A CN108342919A (en) | 2018-04-27 | 2018-04-27 | Polydisc directly clear filter and its application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467289A (en) * | 2019-09-16 | 2019-11-19 | 西安兴晟造纸不锈钢网有限公司 | Air-flotation type polydisc directly clear filter and its application method |
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