CN102908822B - Defecator and filter method - Google Patents
Defecator and filter method Download PDFInfo
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- CN102908822B CN102908822B CN201110267257.XA CN201110267257A CN102908822B CN 102908822 B CN102908822 B CN 102908822B CN 201110267257 A CN201110267257 A CN 201110267257A CN 102908822 B CN102908822 B CN 102908822B
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- 238000011084 recovery Methods 0.000 claims abstract description 89
- 239000011550 stock solution Substances 0.000 claims abstract description 84
- 239000000706 filtrate Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 230000000875 corresponding Effects 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 88
- 230000001276 controlling effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 abstract description 44
- 239000007921 spray Substances 0.000 abstract description 22
- 239000012530 fluid Substances 0.000 description 31
- 238000005406 washing Methods 0.000 description 20
- 238000007792 addition Methods 0.000 description 19
- 238000001125 extrusion Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 15
- 239000000243 solution Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 230000000240 adjuvant Effects 0.000 description 6
- 239000002671 adjuvant Substances 0.000 description 6
- 230000002093 peripheral Effects 0.000 description 6
- 239000005909 Kieselgur Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000001629 suppression Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 235000013555 soy sauce Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
Use multiple filter main body that residual spray mixture can also be made to be a small amount of defecator and filter method even if the present invention provides.nullThe present invention possesses: multiple filter main body (1) ~ (3) of filter raw liquid，It is connected to filter main body (1) ~ (3) and takes out filtrate drain passageway (31) ~ (33) of filtrate，It is connected to filter main body (1) ~ (3) and reclaims debris recovery passage (51) ~ (53) of the debris residuing in inside, filter main body (1) ~ (3)，Path change mechanism (54) ~ (56) with the circulation status of switching debris recovery passage (51) ~ (53)，Wherein，Stock solution filter main body (1) ~ (3) are filtered simultaneously，Now，By path change mechanism (54)，Switch to the state that debris recovery passage (51) circulates，The debris reclaimed by debris recovery passage (51) is filtered by the filter main body (2) different from the filter main body (1) corresponding to this debris recovery passage (51) and filter main body (3).
Description
Technical field
The present invention relates to filter raw liquid and take out defecator and the filter method of filtrate, particularly relate to make stock solution lead to
Cross and be coated with the filter element of the filtration adjuvants such as kieselguhr and the diatomaceous earth filter of filter raw liquid and use its filtration side
Method.
Background technology
As defecator, it is known to make stock solution filter former by being coated with the filter element of the filtration adjuvants such as kieselguhr
The device (the most following patent documentation 1) of liquid.In filter element, such as, there is candle metal wire being wound into cylindrical shape and formed
Formula or the thin board type (リ Off formula) formed with the flat board of metal mesh shaped.Filter element is built in the housing of filter main body
Use.
When filter progress is carried out, owing to filtration resistance increase causes the intrinsic pressure rising of filter main body, eventually arrive at filtration
The limit so that the supply of stock solution stops.Now, the debris residuing in filter body interior can be made by air extrusion
Reclaim for filtrate.Air extrusion refers to get rid of debris by the compressed air of high pressure and be passed to filter element.
But, the stock solution to filterability difference, the syrup or (raw containing a large amount of sedimentary oleo stock soy sauce that such as viscosity is high
Oil) when filtering, it is difficult to air extrusion goes out the debris in whole filter main bodys.Even good former of filterability
Liquid, goes out whole debris by air extrusion and reclaims as filtrate and also expend the time.Therefore, patent documentation 1 proposes
Will not pass through air extrusion and carry out the scheme that the debris of filtration treatment carries out reclaiming under conditions of not by filter element.
[patent documentation 1]: Japanese Unexamined Patent Publication 2009-148680 publication.
Summary of the invention
The problem that invention is to be solved
The debris reclaimed can carry out filtration treatment as stock solution in follow-up filter progress.But, residual spray mixture increases
Time many, the burden of filtration treatment in follow-up filter progress can be increased.It addition, in terms of production programming, carrying out follow-up mistake
When having time interval before filter operation, there is the problems such as debris corruption, from undesirable in terms of health.And then, after there is also
In continuous filter progress, the kind of stock solution changes, and makes the debris of recovery can not be blended in the stock solution of follow-up filter progress
Situation.In this case, the special equipment (debris filter) of filtration treatment debris can only be provided for, or can only be by
Debris waste treatment.
Debris filter can use such as cartridge filter etc..But, owing to cartridge filter is disposable, therefore
The frequency that residual spray mixture changes cartridge filter the most at most is the highest, and the cost needed for debris filtration treatment is the biggest.Therefore,
Expect that residual spray mixture is the fewest.The capacity of filter main body carrying out filtering is the biggest, then remain when filtration treatment terminates
Liquid measure is the most.In the defecator such as patent documentation 1, filter main body is the composition of 1, the capacity of filter main body
Greatly, residual spray mixture also increases.It addition, used filter area can not be changed according to the treating capacity of stock solution, the most do not imitate
Rate.
On the other hand, by 1 above-mentioned filter main body is divided into multiple filter main body, these multiple filters are made
The total filter area of main body is equivalent to the composition of above-mentioned 1 filter main body, can select institute according to the treating capacity of stock solution
The quantity of the filter main body used, the filter area i.e. used, is therefore effective.But, if selecting multiple filtration
Owner's body, then can produce the debris of capacity corresponding to these multiple filter main bodys, hence in so that residual spray mixture increases.
The present invention solves existing problem as above, uses multiple filter main body even if its objective is to provide,
Can also make residual spray mixture is a small amount of defecator and filter method.
For solving the means of problem
In order to reach above-mentioned purpose, the defecator of the present invention is filter raw liquid and takes out the defecator of filtrate, its
It is characterised by possessing: multiple filter main bodys of filter raw liquid, is connected to each of above-mentioned multiple filter main body and takes out
The filtrate drain passageway of filtrate, is connected to each of above-mentioned multiple filter main body and reclaims and residue in above-mentioned multiple mistake
The debris recovery passage of the debris that each of filter main body is internal, and switch the circulation shape of above-mentioned debris recovery passage
The path change mechanism of state, wherein, stock solution filters by more than 2 filter main bodys simultaneously, changes machine by above-mentioned path
Structure, switch to above-mentioned debris recovery passage circulation state, by above-mentioned debris recovery passage reclaim debris with
The filter main body different corresponding to the filter main body of this debris recovery passage filters.
The filter method of the present invention is filter raw liquid and takes out the filter method of filtrate, it is characterised in that uses and filters
Multiple filter main bodys of stock solution, residue in above-mentioned multiple filtration owner by the filtrate drain passageway and recovery that take out filtrate
The debris recovery passage of the debris that each of body is internal is connected to each of above-mentioned multiple filter main body, with 2
Above filter main body filter raw liquid simultaneously, by switching the path change machine of the circulation status of above-mentioned debris recovery passage
Structure, switches to the state of above-mentioned debris recovery passage circulation, the debris reclaimed by above-mentioned debris recovery passage is used
The filter main body different from the filter main body corresponding to this debris recovery passage filters.
According to the present invention, the debris of filter main body is not to remain with the state of debris, and is through residual
Liquid recovery passage reclaims, by the filter main body mistake different from the filter main body corresponding to this debris recovery passage
Filter.Therefore, even if use multiple filter main body, debris when filtration treatment terminates can suppress as being only last returning
Receive the debris in the filter main body of debris, it is possible to reduce residual spray mixture.And then, owing to stock solution is with more than 2 filters
Main body filters simultaneously, therefore decreases the time needed for filtration.
Wherein, carry out getting rid of filtered air by the compressed air utilizing high pressure and extrude, can make to residue in arrive
The debris of the filter main body during filter limit is taken out as filtrate.In the present invention, as set forth above, it is possible to by other mistake
Filter bulk filter debris.Therefore, present invention filterability difficult for stock solution, be difficult to be filtered all by air extrusion
The situation of debris, and filter whole debris by air extrusion and carry out reclaiming time-consuming situation, the most effectively.
In the defecator of the invention described above, be preferably provided for staggering between above-mentioned multiple filter main bodys by
State the controlling organization in the period of the circulation status of the path change mechanism above-mentioned debris recovery passage of switching.In the invention described above
In filter method, preferably stagger between above-mentioned multiple filter main bodys and to switch the circulation status of above-mentioned debris recovery passage
Period.
In this composition, even if the 1st filter main body in multiple filter main body is transferred to debris and reclaims, other filter
Owner's body can also maintain filter progress.Now, the debris of the 1st filter main body can be carried out by other filter main bodys
Filtration treatment.Such as, when arranging more than 3 filter main bodys, the 1st filter main body the debris reclaimed is dispersed in remaining
The filter main body of more than 2 in carry out filtration treatment.Then, by the 2nd filter main body reclaim debris with remaining 1
Individual above filter main body carries out filtration treatment.By this filtration treatment, disposable with the debris of other filter main bodys
Situation about all remaining in the last filter main body reclaiming debris is compared, it is possible to reduce finally reclaim the filtration of debris
Residual spray mixture in owner's body.Thus, it is possible to reduce the filter area remaining in the last filter main body reclaiming debris, knot
Really, it is possible to reduce finally reclaim the capacity of the filter main body of debris.In the present invention as above, due to filter progress
Debris during termination is only the debris in the filter main body finally reclaiming debris, therefore more reduces last recovery residual
Staying the capacity of the filter main body of liquid, residual spray mixture also becomes the fewest.
In the defecator of the invention described above, preferably stock solution supply pump is connected to above-mentioned each filter main body.?
In the filter method of the invention described above, preferably stock solution supply pump is connected to above-mentioned each filter main body.By this composition, can
Each filter main body is supplied stock solution with each filter main body dedicated pump.Therefore, defecator both can have been used to be had
Whole multiple filter main bodys, it is possible to use the filter main body selected from multiple filter main bodys.It addition, by control
Make the rotation number of the electromotor of each pump, it is also possible to easily individually set the flow of the stock solution supplied to each filter main body.
In the defecator of the invention described above, the most above-mentioned multiple filter main bodys include filter area or inner capacities
At least any one filter main body different from other filter main bodys, can select to be used according to the treating capacity of stock solution
Filter main body.In the filter method of the invention described above, above-mentioned multiple filter main body is preferably made to include filter area or interior
At least any one filter main body different from other filter main bodys of capacity, selects to be used according to the treating capacity of stock solution
Filter main body.By this composition, according to the treating capacity of stock solution, the filtercondition such as the change of filterability of stock solution, even if
When filter area needed for per pass filter progress, internal volume change, it is also possible to independent assortment selects filter main body.Make
When filtering with filtration adjuvant, as the change of filtercondition, also can enumerate the change of the amount of filtration adjuvant used.
In the defecator of the invention described above, preferably from above-mentioned multiple filter main bodys, debris is recovered
Filter main body start to wash successively.In the filter method of the invention described above, preferably from above-mentioned multiple filter main bodys
In, filter main body that debris has been recovered starts to wash successively.By this composition, debris is being recovered
Filter main body carry out period of washing, it is also possible to carrying out utilizing the filtration treatment of other filter main bodys, therefore, result can
To shorten the required time of whole operations.
In the defecator of the invention described above, it is preferably provided with different from above-mentioned multiple filter main bodys residual for filtering
Stay the debris filter of liquid, by the debris of the filter main body fewer than the quantity of the filter main body being used for filtration with above-mentioned
Debris filter filters.In the filter method of the invention described above, it is preferably provided with different from above-mentioned multiple filter main bodys
The debris filter for filtration residue liquid, by the filter main body fewer than being used for the quantity of filter main body that filters
Debris filters with above-mentioned debris filter.By this composition, stock solution can all be taken out as filtrate.Therefore,
Debris need not be left to follow-up filter progress, also will not increase the burden of filtration treatment in follow-up filter progress.It addition,
In the present invention as above, final debris is suppressed to the most finally to reclaim in the filter main body of debris
Debris.Therefore, the filtration burden of debris filter can both be alleviated, it is also possible to shorten the activity duration that debris filters.
It addition, by alleviating filtration burden, in the case of debris filter uses such as cartridge filter, it is possible to reduce change
Frequency, reduction debris filtration treatment needed for cost.
Invention effect
According to the present invention, the debris of filter main body is reclaimed by debris recovery passage, with correspond to
The filter main body that the filter main body of this debris recovery passage is different filters, even if using multiple filter main bodys
In the case of, debris when filtration treatment terminates can suppress in the filter main body for being only last recovery debris
Debris, it is possible to reduce residual spray mixture.
Therefore, present invention filterability difficult for stock solution, be difficult to be filtered the feelings of whole debris by air extrusion
Condition, and filter whole debris by air extrusion and carry out reclaiming time-consuming situation, the most effectively.And then, due to
Stock solution filters by more than 2 filter main bodys simultaneously, can suppress to filter the required time.
Accompanying drawing explanation
[Fig. 1] illustrates the structure chart of the precoating operation of the defecator of one embodiment of the invention.
[Fig. 2] illustrates the structure chart of the filter progress of the defecator of one embodiment of the invention.
[Fig. 3] illustrates the structure chart of the debris recovery process (1) of the defecator of one embodiment of the invention.
[Fig. 4] illustrates the structure chart of the debris recovery process (2) of the defecator of one embodiment of the invention.
[Fig. 5] illustrates the structure chart of the debris recovery process (3) of the defecator of one embodiment of the invention.
[Fig. 6] illustrates the structure chart of the debris conveying operation of the defecator of one embodiment of the invention.
[Fig. 7] illustrates the structure chart of the debris filter progress of the defecator of one embodiment of the invention.
[Fig. 8] illustrates the structure chart of the washing procedure of the defecator of one embodiment of the invention.
Specific embodiments
Hereinafter, with reference to the accompanying drawings of one embodiment of the invention.Fig. 1 is the filtration dress of one embodiment of the invention
Put the structure chart of 10.This figure is also the structure chart of the precoating operation that explanation is discussed below, and with reference first to Fig. 1, defecator 10 is described
Schematic configuration.Defecator 10 is diatomaceous earth filter.Diatomaceous earth filter is to make stock solution pass through to be coated with filtration to help
The filter element of agent (kieselguhr, cellulose, activated carbon etc.), with by device fining for stock solution.
3 filter main bodys 1 ~ 3 are connected in parallel in original fluid container 20 by the path through being made up of pipe arrangement.Supply to original fluid container 20
Give the stock solution as filtering object.When using whole 3 filter main bodys 1 ~ 3, the stock solution in original fluid container 20 is to filter main body 1
~ 3 supplies.Stock solution is filtered by the filter element 7 ~ 9 that is built in filter main body 1 ~ 3, takes out from filter main body 1 ~ 3
Filtrate.
Filter main body 1 is built-in multiple filter elements 7 in cylindric housing 4.Similarly, filter main body 2, filtration
Built-in multiple filter elements 8, multiple filter element 9 in owner's body 3 each comfortable housing 5, housing 6.Filter element 7 ~ 9 is with candle formula
Example illustrates, and metal wire is wound into cylindrical shape and is formed.During filtration, on the surface of filter element 7 ~ 9 by above-mentioned filtration
Auxiliary agent forms precoated shet.
The stock solution supplied in filter main body 1 ~ 3 by supply mouth 40 ~ 42 is by being formed at the pre-of filter element 7 ~ 9 surface
Coating and filtered, formed filtrate.This filtrate was flowed into filtering element by the gap between the metal wire of filter element 7 ~ 9
The inside of part 7 ~ 9, is discharged by outlet 43 ~ 45.These filtrate discharged are recovered in filtration flow container 50.
Filter element 7 ~ 9 can use various forms of element, is not limited to the element of cylindrical shape, it is also possible to be by tinsel
The element that netted flat board is formed, and it is not limited to metallic filter, it is also possible to it is the filter of resin or cloth or paper etc..Separately
Outward, in FIG, filter element 7 ~ 9 be the inside of housing 4 ~ 6 suspention hang candle type but it also may be by filter element 7 ~ 9 by
Lower and upper upright vertical candle type.
Hereinafter, for using defecator 10 to carry out the filtration treatment of stock solution, illustrate by process sequence.First, 3
In individual filter main body 1 ~ 3, select the quantity of the filter main body used according to the treating capacity of stock solution.Following description is to make
Situation by whole 3 filter main bodys 1 ~ 3.Fig. 1 is the structure chart illustrating to precoat operation.The path represented with thick line in Fig. 1
Represent the flowing of the liquid precoated in operation.In precoating operation, put into filtration adjuvant to the stock solution being supplied in original fluid container 20,
Make it circulate in original fluid container 20 and filter main body 1 ~ 3, thus form what filtration adjuvant produced on the surface of filter element 7 ~ 9
Precoated shet.
With reference to Fig. 1, the path of circulation in precoating operation is illustrated.Original fluid container 20 and filter main body 1 are passed through former
Liquid supply passageway 11 is connected, original fluid container 20 and filter main body 2 is connected, by original fluid container 20 and mistake by stock solution supply passageway 12
Filter main body 3 is connected by stock solution supply passageway 13.Stock solution supply passageway 11 exists pump 17 and valve 14, logical in stock solution supply
There is pump 18 and valve 15 on road 12, stock solution supply passageway 13 exists pump 19 and valve 16.
It addition, filter main body 1 is connected with the pre-coating solution peripheral passage 21 that there is valve 24.Similarly, filter main body 2
It is connected with the pre-coating solution peripheral passage 22 that there is valve 25, filter main body 3 and pre-coating solution peripheral passage 23 phase that there is valve 26
Connect.
And then, filter main body 1 is connected with the filtrate drain passageway 31 that there is valve 34.Similarly, filter main body 2
It is connected with the filtrate drain passageway 32 that there is valve 35, filter main body 3 and filtrate drain passageway 33 phase that there is valve 36
Connect.Filtrate drain passageway 31 ~ 33 is the path taking out the filtrate obtained by filter main body 1 ~ 3.
In above path is constituted, by path change mechanism, the state of each path circulation can be switched and do not circulate
State.In the present embodiment, each valve that path change mechanism is present on each path.It is not limited to above-mentioned path,
For other paths being discussed below, it is also possible to switch circulation status by each valve as path change mechanism.To filter
As a example by owner's body 1, by opening valve 24 and closing valve closing 34, pre-coating solution peripheral passage 21 forms circulation status, and filtrate is discharged logical
Road 31 forms the state not circulated.
In precoating operation, open valve 14 ~ 16 and valve 24 ~ 26, close other valves.That is, the stock solution represented with thick line in Fig. 1
Supply passageway 11 ~ 13 and pre-coating solution peripheral passage 21 ~ 23 form circulation status.For this circulation status, with filter main body 1 it is
Example, by the driving of pump 17, the stock solution from original fluid container 20 is supplied in filter main body 1 via stock solution supply passageway 11.And
And, discharged by filter main body 1, return in original fluid container 20 via pre-coating solution peripheral passage 21.
In precoating operation, in original fluid container 20, put into filter aid material together with stock solution, to filter main body 1 ~ 3
Supply is suspended with the pre-coating solution of filter aid material in stock solution.By making this pre-coating solution circulate, on the surface of filter element 7 ~ 9
Coating filter aid material.When making pre-coating solution circulation several tens minutes, form precoated shet on the surface of filter element 7 ~ 9.
After precoating operation terminates, it is transferred to filter progress.Fig. 2 is the structure chart that filter progress is described.In filter progress,
As shown in the thick line of Fig. 2, open valve 34 ~ 36, pass valve closing 24 ~ 26, thus the stock solution supply closed in precoating operation
Path 11 ~ 13 and filtrate drain passageway 31 ~ 33 form circulation status.
In this circulation status, by the driving of pump 17 ~ 19, from the stock solution of original fluid container 20 via stock solution supply passageway 11
~ 13 and be supplied in filter main body 1 ~ 3.In precoating operation, form precoated shet on the surface of filter element 7 ~ 9.Therefore, supply
It is given to the stock solution in filter main body 1 ~ 3 filtered by precoated shet, forms the filtrate of clarification.This filtrate was flowed into
The inner side of filtering element 7 ~ 9, discharges from outlet 43 ~ 45.The filtrate discharged is recovered to by filtrate drain passageway 31 ~ 33
Filter in flow container 50.
When carrying out filter progress, the impurity contained in stock solution is attached to above-mentioned precoated shet lentamente.Accompany with this, cross filtration resistance
Power increases, and the intrinsic pressure rising of housing 4 ~ 6 eventually arrives at the filtration limit.Therefore, when housing 4 ~ 6 intrinsic pressure rises to certain value, former
The supply of liquid stops, and filters and terminates.
In the present embodiment, filtration is arrived according to the order of filter main body 1, filter main body 2, filter main body 3
The limit, stops stock solution supply according to this order.When stopping supplying stock solution to filter main body 1, residue in filtration owner
The stock solution not filtered in body 1 is referred to as debris.When filter main body 2 and filter main body 3 are also same.
The filter main body 1 that stopped stock solution supply is then transferred to debris recovery process.After, according to filtering owner
Body 2, the order of filter main body 3, be transferred to debris recovery process.Thus, shift to debris recovery process to stagger
Period, defecator 10 possesses controlling organization 30(such as sequence unit).In the present embodiment, wrong by controlling organization 30
Reach to reach the period filtering the limit, stagger simultaneously by as path change mechanism each Vavle switching debris recovery passage 51 ~
The period of the circulation status of 53.In Fig. 1 ~ 5, Fig. 8, in order to make diagram substantially be clear to, eliminate connection control mechanism 30 with each
The diagram of the holding wire of valve.
Stagger and filter the period of the limit, can be supplied by the stock solution making the per unit filter area to filter main body 1 ~ 3
Give and measure different realization.The regulation of stock solution quantity delivered can be passed through by such as each arranging current transformer on pump 17 ~ 19
Controlling organization 30 controls the driving frequency of the electromotor of pump 17 ~ 19 and carries out with the rotation number controlling electromotor.Hereinafter, will relate to
The debris recovery process of filter main body 1 is referred to as debris recovery process (1), the debris relating to filter main body 2 is returned
Sequence of knocking off is referred to as debris recovery process (2), the debris recovery process relating to filter main body 3 is referred to as debris recovery work
Sequence (3).
Fig. 3 is the structure chart that debris recovery process (1) is described.The thick line of Fig. 3 represents in debris recovery process (1)
The path of liquid flowing.When housing 4 intrinsic pressure rises to certain value, pump 17 stops, valve 14 cuts out, and stops to filter main body 1
Supply stock solution.Meanwhile, valve 57 is opened, from compressed air supply source 27 via compressed air supply passageway 47 to filtering owner
Body 1 supplies the compressed air of high pressure.Thus, the debris in filter main body 1 is squeezed out by supplying mouth 40, filter main body 1
Interior filtrate squeezes out from outlet 43.Hereinafter, the compressed air by supply high pressure is squeezed in filter main body 1 ~ 3
The mode extruding debris or filtrate is referred to as air extrusion.
A part for debris is filtered by filter element 7, is squeezed out as filtrate from outlet 43.At figure
In 3, owing to valve 34 is in open mode, the filtrate therefore gone out by air extrusion from outlet 43 is through filtrate drain passageway
31 and be recycled to filter in flow container 50.
Almost all of debris in filter main body 1 via supply mouth 40, former as not over filter element 7
The debris of liquid status is squeezed out.In figure 3, valve 14 and valve 64 are to close, and open valve 54, make debris recovery passage 51
Form circulation status.Therefore, supply mouth 40 debris squeezed out is recovered to original fluid container via debris recovery passage 51
In 20.
Debris recovery process (1) period, the mistake in filter main body 2 and filter main body 3 is carried out in filter main body 1
Filter operation proceeds.Therefore, the debris of the filter main body 1 being recycled in original fluid container 20 passes through filter main body 2 and mistake
Filter main body 3 filters, and reclaims as filtrate.
Fig. 4 is the structure chart that debris recovery process (2) are described.The thick line of Fig. 4 represents liquid in debris recovery process (2)
The path of body flowing.When housing 5 intrinsic pressure rises to certain value, pump 18 stops, valve 15 cuts out, and stops former to filter main body 2
For feeding.Meanwhile, open valve 58, from compressed air supply source 27 via compressed air supply passageway 48 to filter main body
2 supply compressed airs.Thus, the debris in filter main body 2 squeezes out from supply mouth 41, the filtration in filter main body 2
Liquid squeezes out from outlet 44.
A part for debris is filtered by filter element 8, is squeezed out as filtrate from outlet 44.At figure
In 4, owing to valve 35 is in open mode, therefore from outlet 44 by the filtrate of air extrusion via filtrate drain passageway 32
It is recovered to filter in flow container 50.
Almost all of debris in filter main body 5 via supply mouth 41, former as not over filter element 8
The debris of liquid status is squeezed out.In the diagram, valve 15 and valve 65 are to close, and open valve 55, make debris recovery passage 52
Form circulation status.Therefore, supply mouth 41 debris squeezed out is recovered to original fluid container via debris recovery passage 52
In 20.
On the other hand, debris recovery process (2) period, the filterer in filter main body 3 are carried out in filter main body 2
Sequence proceeds.Therefore, the debris of the filter main body 2 being recycled in original fluid container 20 is filtered by filter main body 3,
Reclaim as filtrate.
Fig. 5 is the structure chart that debris recovery process (3) are described.The thick line of Fig. 5 represents liquid in debris recovery process (3)
The path of body flowing.When housing 6 intrinsic pressure rises to certain value, pump 19 stops, valve 16 cuts out, and stops supplying to filter main body 3
To stock solution.Meanwhile, open valve 59, from compressed air supply source 27 via compressed air supply passageway 49 to filter main body
3 supply compressed airs.Thus, the debris in filter main body 3 squeezes out from supply mouth 42, the filtration in filter main body 3
Liquid squeezes out from outlet 45.
A part for debris is filtered by filter element 9, is squeezed out as filtrate from outlet 45.At figure
In 5, owing to valve 36 is in open mode, therefore from outlet 45 by the filtrate of air extrusion via filtrate drain passageway 33
It is recovered to filter in flow container 50.
Almost all of debris in filter main body 3 via supply mouth 42, former as not over filter element 9
The debris of liquid status is squeezed out.In Figure 5, valve 16 and valve 66 are to close, and open valve 56, make debris recovery passage 53
Form circulation status.Therefore, the debris squeezed out from supply mouth 42 is recovered to original fluid container via debris recovery passage 53
In 20.
In the present embodiment, supply mouth 40 debris of the filter main body 1 being recycled in original fluid container 20 filters
Owner's body 2 and filter main body 3 filter, and reclaim as filtrate.It addition, be recycled in original fluid container 20 by supply mouth 41
The debris filter main body 3 of filter main body 2 filters, and reclaims as filtrate.That is, filter main body 1 and filtration
The debris of owner's body 2 does not remains as unfiltered stock solution, but reclaims with debris recovery passage, with right
Should filter in the filter main body that the filter main body of this debris recovery passage is different.Therefore, even if using 3 filtrations
Owner's body 1 ~ 3, debris when filter progress terminates can also be suppressed to the most finally be transferred to debris recovery process
Filter main body 3 in debris, it is possible to reduce residual spray mixture.
In the present embodiment, a part for the debris of filter main body 1 and filter main body 2 utilize air extrusion and
Carry out filtering, reclaiming by filter element 7 and filter element 8.On the other hand, for difficult filterability former of Filtration Filtration difference
The situation of liquid, it is difficult to carry out the whole debris in Filtration Filtration owner's body by air extrusion.Even if good former of filterability
Liquid, filters whole debris and also expends the time.In the present embodiment, when air extrusion, almost all of debris is passed through
Filter element 7 and filter element 8, but be recovered in original fluid container 20, lead to as said above with reclaiming corresponding to this debris
The filter main body that the filter main body on road is different filters.Therefore, the present embodiment filterability difficult for stock solution, difficult
To be filtered the situation of whole debris by air extrusion, and filter whole debris by air extrusion and reclaim
Time-consuming situation, the most effectively.
It addition, in the present embodiment, in filter progress, owing to stock solution was carried out by 3 filter main bodys 1 ~ 3 simultaneously
Filter, decreases the time needed for filtration.It addition, by using filter main body 1 ~ 3 simultaneously, the precoating operation of Fig. 1 can be in the lump
Complete 3 parts of filter main body 1 ~ 3.Therefore, there is no need to carry out follow-up precoating operation, the required of whole operation can be shortened
Time, the path switching between operation can be simplified simultaneously.
And then, in the present embodiment, between 3 filter main bodys 1 ~ 3, stagger and reclaim to debris from filter progress
The period of operation switched path.Therefore, even if as it has been described above, filter main body 1 being transferred to debris recovery process (1), mistake
Filter main body 2 and filter main body 3 can also maintain filter progress.Now, the debris of filter main body 1 is scattered in filter
Main body 2 and filter main body 3, carry out filtration treatment.Then, the debris filter main body 3 reclaimed from filter main body 2 is entered
Row filtration treatment.In this filtration treatment, and by the most residual for the debris of filter main body 1 and filter main body 2
Situation about staying in filter main body 3 is compared, it is possible to reduce remain in the residual spray mixture in filter main body 3.Thus, it is possible to subtract
The filter area of few last filter main body 3 reclaiming debris is as a result, the capacity of filter main body 3 can be reduced.As above institute
Stating, in the present embodiment, debris when filter progress terminates can be only the last filter main body 3 reclaiming debris
In debris, therefore more reduce the capacity of filter main body 3, residual spray mixture is the fewest.
In the present embodiment, owing to filter main body 1 ~ 3 is respectively provided with pump 17, pump 18, pump 19, can make to filter
The stock solution quantity delivered of main body 1 ~ 3 is different.Thus, it is possible to stagger filter main body 1 ~ 3 arrive filter the limit period, i.e. from
Filter progress is to the period of debris recovery process switched path.Permissible to the regulation of the stock solution quantity delivered of filter main body 1 ~ 3
Such as it has been described above, realized by the rotation number of the electromotor of control pump 17 ~ 19.
It addition, in the present embodiment, owing to possessing 3 filter main bodys 1 ~ 3, therefore can be according to the treating capacity of stock solution
Select used filter main body 1 ~ 3.
Above, to until the operation of debris recovery process (3) is illustrated, terminate at debris recovery process (3)
Moment, original fluid container 20 is remained the debris reclaimed by debris recovery process (3).Under this debris can be passed through
Secondary filtration treatment filters, it is also possible to adds filter plant, filtered before being transferred to next filtration treatment.With
Under, the filtration to the debris residued in original fluid container 20 illustrates.
Fig. 6 is the structure chart that debris conveying operation is described, Fig. 7 is the structure chart that debris filter progress is described.Fig. 6 and
Fig. 7 is identical structure, and the thick line of Fig. 6 represents the path of liquid flowing in debris conveying operation, and the thick line of Fig. 7 represents residual
The path of liquid flowing in liquid filter progress.In figure 6 and figure 7, the defecator 10 shown in Fig. 1 ~ 5 has been added it had been used for
The equipment of filter debris.Fig. 6 and Fig. 7 attaches most importance to this additional equipment and illustrates, Fig. 6 and Fig. 7 omits the part of diagram with
The structure of Fig. 1 ~ 5 identical.
With reference to Fig. 6 to for filtration residue liquid, additional equipment illustrates.Stock solution supply passageway 13 and debris are returned
Closed cans 70 connects by there is the debris carrying path 86 of valve 87.Debris recycling can 70 and debris filter 90 are by depositing
Debris supply passageway 88 at pump 89 and valve 93 connects.Debris filter 90 possesses filter 92 in housing 91, passes through
The debris of filter 92 is recovered as filtrate.Debris filter 90 and filtration flow container 50 are by filtrate supply passageway
94 connect.
In said structure, the debris at Fig. 6 carries in operation, and valve 16 cuts out, valve 87 is opened, and pump 19 operates.Thus,
Debris in the original fluid container 20 of Fig. 5 is recycled to debris and reclaims via stock solution supply passageway 13 and debris carrying path 86
In tank 70.In the debris filter progress of Fig. 7, valve 93 is opened, pump 89 operates.Thus, the residual in debris recycling can 70
Liquid debris filter 90 filters, and is recovered to filter in flow container 50 via filtrate drain passageway 94.
Operation and the debris filter progress of Fig. 7 is carried by the debris via Fig. 6, can be using stock solution all as filtering
Liquid takes out.Therefore, debris need not remain in follow-up filter progress, also will not increase the filtration in follow-up filter progress
The burden processed.It addition, as it has been described above, in the present embodiment, final debris can suppress as being only last transfer
Debris to the filter main body 3 of debris recovery process.The filtration that therefore, it can alleviate debris filter 90 is born
Load, it is possible to shorten the activity duration that debris filters.It addition, by alleviating filtration burden, use at debris filter 90
Cost such as in the case of cartridge filter, it is possible to reduce replacement frequency, needed for the filtration treatment of suppression debris.
It addition, be not limited to the debris of 1 filter main body by the debris of debris filter 90 filtration.Even if
After to be transferred to the filter main body of debris recovery process be multiple, if this quantity than filter progress initial filter used
The quantity of main body is few, the most final residual spray mixture can than filter progress the residual spray mixture of initial filter main body part used
Few.Therefore, even if in this case, it is also possible to alleviate the filtration burden of debris filter 90, shorten the work that debris filters
The industry time, it is thus achieved that reduced the effect that the cost brought reduces by the replacement frequency of debris filter.
Then, washing procedure is illustrated.In the explanation of above-mentioned Fig. 1 ~ 7, although eliminate saying of washing procedure
Bright, but when the debris recovery process (1) of filter main body 1 terminates, the washers of filter main body 1 can be transferred to
Sequence.Similarly, when debris recovery process (2) terminates, can be transferred to the washing procedure of filter main body 2, debris reclaims
When operation (3) terminates, the washing procedure of filter main body 3 can be transferred to.
Fig. 8 is the structure chart that washing procedure is described.The thick line of Fig. 8 represents that filter main body 1 is transferred to liquid during washing procedure
The path of body flowing.In Fig. 8, although filter main body 1 is transferred to washing procedure, but filter main body 2 and filter main body 3
Filter progress proceeds.Valve 24 and valve 34 are closed, and valve 74 is opened.Therefore, from cleaning mixture supply source 28 cleaning mixture via
Cleaning mixture supply passageway 83, is discharged in filter main body 1 from outlet 43.Owing to this cleaning mixture is from the back side of filter element 7
Lateral surface effluent moves, and by this flowing, the filter aid material of the precoated shet forming filter element 7 surface is peeling-off.
In the path of supply mouth 40 side of filter main body 1, close valve closing 14 and valve 54, open valve 64, drainage channel 61
Form circulation status.Therefore, the filter aid material peeled off is recycled to displacement can via drainage channel 61 together with cleaning mixture
In 60.
Above, the washing procedure of filter main body 1 is illustrated, filter main body 2 and the washing of filter main body 3
Operation is identical with the situation of filter main body 1.Therefore, for filter main body 2 and the washing procedure of filter main body 3, omit
Describe in detail, be only briefly described.Valve 75 and valve 76 are corresponding to valve 74, cleaning mixture supply passageway 84 and cleaning mixture supply passageway
85 correspond to cleaning mixture supply passageway 83.
When debris recovery process (2) terminates, filter main body 2 is transferred to washing procedure, and cleaning mixture is discharged into filter
In main body 2.The filter aid material peeled off from filter element 8 is recycled to displacement can 60 via drainage channel 62 together with cleaning mixture
In.Similarly, when debris recovery process (3) terminates, filter main body 3 is transferred to washing procedure, and cleaning mixture is discharged into filtration
In owner's body 3.The filter aid material peeled off from filter element 9 is recycled to displacement can via drainage channel 63 together with cleaning mixture
In 60.
In the above-described embodiment, even during the filter main body 1 being recovered debris is washed, its
He utilizes the filter progress process of filter main body 2 and filter main body 3 still carrying out as a result, whole operation institute can be shortened
The time needed.
The present embodiment is the example of 3 the filter main bodys 1 ~ 3 simultaneously using defecator 10, but can also basis
The treating capacity of stock solution uses selected 2 filter main body simultaneously.It addition, the number of filter main body that defecator is possessed
Both 2 can be, it is also possible to be more than 4.And then, the example that defecator 10 is candle formula diatomaceous earth filter is carried out
Illustrate, but can also be other kinds of defecator.Such as, both can be the diatomaceous earth filter of thin board type, it is possible to
Being not use diatomaceous defecator.
[embodiment]
Hereinafter, with reference to embodiment, the present embodiment is specifically described further.Embodiment has and the mistake shown in Fig. 1
The structure that filter device 10 is same, through using each operation of Fig. 1 ~ Fig. 5 explanation that stock solution is carried out filtration treatment.It addition, embodiment
Also debris conveying operation, the debris filter progress of Fig. 7 and the washing procedure of Fig. 6 are implemented.
Filter main body 1 is identical with the specification of filter main body 2, and filter area is 4m2, internal volume be 400L.Housing 4 He
Housing 5 is the drum of stainless steel.Filter element 7 and filter element 8 be each 19, diameter 60mm, length 1200mm
The candle-shaped filter of stainless steel.The filter area of filter main body 3 is 1m2, internal volume be 100L.Housing 6 is rustless steel
The drum of system.Filter element 9 is candle-shaped filter 8, the stainless steel of diameter 60mm, length 700mm.
The debris filter 90 of Fig. 6 is, in the housing 91 of the drum of stainless steel built-in 1 diameter 170mm,
The bag-shaped pouch-type filter 92 of length 800mm.It addition, stock solution uses sugar liquid 20kL of difficult filterability.
In the precoating operation of Fig. 1, put into the sugar liquid of stock solution to original fluid container 20, put into the kieselguhr for precoating
13.5kg.After they are sufficiently stirred for, will be suspended with in stock solution diatomaceous pre-coating solution by pump 17 ~ 19 simultaneously to housing 4 ~
6 supplies.The flow of pre-coating solution now is, the standard of filter main body 1 and filter main body 2 is 200L/min, filters owner
The standard of body 3 is 50L/min.After the circulation of pre-coating solution starts several tens minutes, at the surface precoated diatomite of filter element 7 ~ 9,
Can confirm that the pre-coating solution being back to original fluid container 20 occurs fining.
After confirming that precoating operation completes, open valve 34 ~ 36, be then switched off valve 24 ~ 26, be transferred to the filter progress of Fig. 2.This
Time, filter main body 1 ~ 3 standard of the flow of the filtrate discharged is that filter main body 1 is 160L/min, filter main body
2 be 120L/min, filter main body 3 be 25L/min.When carrying out filter progress, it is being formed at surface pre-of filter element 7 ~ 9
Adhering to impurity contained in sugar liquid in coating, the output of filtrate, slowly declines.To this end, set in an embodiment: control
The frequency of pump 17 ~ 19 processed, to reach above-mentioned flow, continues to filter, when housing 4 ~ 6 intrinsic pressure reaches 400kPa, enters
Enter debris recovery process.
Beginning filter progress is after 60 minutes, and the intrinsic pressure of housing 4 reaches 400kPa, is transferred to the debris recovery process of Fig. 3
(1).Now, pump 17 stops, and valve 14 cuts out.Meanwhile, open valve 57, supply via compressed air from compressed air supply source 27
To path 47, to the compressed air of housing 4 internal supply 450kPa, and then open valve 54.One of debris within housing 4
Divide by filter element 7, be recycled to filter in flow container 50 via filtrate drain passageway 31 as filtrate, but major part residual
Liquid is recycled in original fluid container 20 via debris recovery passage 51.It addition, the debris of the filter main body 1 being recovered and stock solution
Stock solution mixing within tank 20, filters by filter main body 2 and filter main body 3.
Beginning filter progress is after 80 minutes, and the intrinsic pressure of housing 5 reaches 400kPa, is transferred to the debris recovery process of Fig. 4
(2).Now, pump 18 stops, and valve 15 cuts out.Meanwhile, open valve 58, supply via compressed air from compressed air supply source 27
To path 48, to the compressed air of housing 5 internal supply 450kPa, then open valve 55.A part for debris within housing 5
It is recycled to filter in flow container 50 via filtrate drain passageway 32 by filter element 8, but major part debris is via residual
Liquid recovery passage 52 is recycled in original fluid container 20.It addition, within the debris of the filter main body 2 being recovered and original fluid container 20
Stock solution mixes, and filters by filter main body 3.
Beginning filter progress is after 100 minutes, and the intrinsic pressure of housing 6 reaches 400kPa, and the debris being transferred to Fig. 5 reclaims work
Sequence (3).Now, pump 19 stops, and valve 16 cuts out.Meanwhile, open valve 59, from compressed air supply source 27 via compressed air
Supply passageway 49, to the compressed air of housing 6 internal supply 450kPa, then opens valve 56.One of debris within housing 6
Divide and be recycled to filter in flow container 50 via filtrate drain passageway 33 by filter element 9, but major part debris is via residual
Liquid recovery passage 53 is stayed to be recycled in original fluid container 20.
Then, it is transferred to the debris conveying operation of Fig. 6, is recycled in original fluid container 20 by debris recovery process (3)
The debris of filter main body 3 utilize pump 19 to be delivered in the debris recycling can 70 of Fig. 6.Now, the debris carried
Amount is 90L.At the end of the conveying of debris, it is transferred to the debris filter progress of Fig. 7.The debris of debris recycling can 70 is used
Debris filter 90 filters, and is recovered to filter in flow container 50.The standard of filtering traffic now is 10L/min.I.e.
Making in debris filter progress, when filtering, the output of filtrate, slowly declines, but is starting debris filter progress
Whole debris 90L can be filtered when 30 minutes.It addition, in debris filter progress, the intrinsic pressure of final housing is
150kPa。
In an embodiment, the washing procedure as the embodiment above is implemented.Finish the debris recovery process of Fig. 3
(1) filter main body 1 is transferred to the washing procedure of Fig. 8.As cleaning mixture, use the warm water of 60 DEG C.Open valve 74, from washing
Liquid supply source 28, via cleaning mixture supply passageway 83, discharges this warm water from outlet 43 in filter main body 1.Repeating release should
After warm water 3 times, being visually confirmed to be the inside of filter main body 1, results verification, the kieselguhr on the surface being attached to filter element 7 is complete
Portion peels off.The filter main body 2 of the debris recovery process (2) finishing Fig. 4 is implemented same washing, to finishing Fig. 5
The filter main body 3 of debris recovery process (3) implement same washing.Filter element 8 and mistake for filter main body 2
The filter element 9 of filter main body 3, also confirms that the kieselguhr being attached to its surface all peels off.
As it has been described above, in the present embodiment, the filter area of filter main body 1 and filter main body 2 is 4m2, internal volume
For 400L, the filter area of filter main body 3 is 1m2, internal volume be 100L.Now, total filter area is 9m2, total capacity be
900L.For this structure, in the present embodiment, as it has been described above, final residual spray mixture is 90L.On the other hand, example is compared
The operation of 1, comparative example 1 be the number of filter main body be 1, the filter area of filter main body be 9m2, internal volume be
850L.In comparative example 1, residual spray mixture is 780L.And then, comparing the operation of example 2, comparative example 2 is for using the present embodiment
Filter main body 1 ~ 3, omit debris recovery process (1) ~ (3), take out the respective filtrate of filter main body 1 ~ 3.Relatively
The structure of example 2 is that the filter main body of comparative example 1 is divided into 3 filter main bodys, the conjunction of 3 filter main bodys of comparative example 2
Meter filter area 9m2Filter area 9m with the filter main body of comparative example 12Identical.In comparative example 2, filter main body 1 He
The residual spray mixture of filter main body 2 is respectively 370L, and the residual spray mixture of filter main body 3 is 90L, adding up to of residual spray mixture
830L。
To sum up, although the total filter area in the present embodiment is identical with comparative example 1 and comparative example 2, but with comparative example 1 and ratio
Relatively example 2 is compared, and residual spray mixture can be greatly decreased.It follows that compared with comparative example 1 and comparative example 2, embodiment can alleviate
The filtration burden of debris filter 90, but also the activity duration needed for debris filters can be shortened.
[symbol description]
1,2,3 filter main body
11,12,13 stock solution supply passageways
17,18,19 pumps
20 original fluid containers
30 controlling organizations
31,32,33 filtrate drain passageways
47,48,49 compressed air supply passageways
51,52,53 debris recovery passages
54,55,56 valves (path change mechanism)
60 displacement cans
61,62,63 drainage channels
70 debris recycling cans
83,84,85 cleaning mixture supply passageways
90 debris filters.
Claims (12)
1. defecator, it is filter raw liquid and takes out the defecator of filtrate, it is characterised in that possess
It is built-in with filter element, filter raw liquid multiple filter main body,
It is connected to each of above-mentioned multiple filter main body and takes out the filtrate drain passageway of filtrate,
It is connected to each of above-mentioned multiple filter main body and reclaims in each residuing in above-mentioned multiple filter main body
The debris recovery passage of the debris in portion, and
Switch the path change mechanism of the circulation status of above-mentioned debris recovery passage, wherein,
Stock solution filters by more than 2 filter main bodys simultaneously,
Described more than 2 filter main bodys stop stock solution supply according to arriving the order filtering the limit,
For stopped the above-mentioned filter main body of stock solution supply, by above-mentioned path change mechanism, switch to above-mentioned debris
The state of recovery passage circulation,
The debris reclaimed by above-mentioned debris recovery passage, with residual with corresponding to this in above-mentioned more than 2 filter main bodys
The filter main body filter main body different, that proceed filter progress staying liquid recovery passage filters,
A part in the debris of above-mentioned each filter body interior residual is filtered, as mistake by above-mentioned filter element
Filtrate is recovered via above-mentioned filtrate drain passageway.
2. the defecator described in claim 1, wherein, be provided for staggering between above-mentioned multiple filter main bodys by
State the controlling organization in the period of the circulation status of the path change mechanism above-mentioned debris recovery passage of switching.
3. the defecator described in claim 1, wherein, is connected to above-mentioned each filter main body by stock solution supply pump.
4. the defecator described in claim 1, wherein, above-mentioned multiple filter main bodys include filter area or inner capacities extremely
Any one filter main body different from other filter main bodys few, can select used mistake according to the treating capacity of stock solution
Filter main body.
5. the defecator described in claim 1, wherein, from above-mentioned multiple filter main bodys, debris has been recovered
Filter main body starts to wash successively.
6. the defecator described in claim 1, wherein, possesses different from above-mentioned multiple filter main bodys for filtration residue
The debris filter of liquid, by the debris of the filter main body fewer than the quantity of the filter main body being used for filtration with above-mentioned residual
Liquid filter is stayed to filter.
7. filter method, it is filter raw liquid and takes out the filter method of filtrate, it is characterised in that
Use and be built-in with filter element, filter raw liquid multiple filter main body,
The filtrate drain passageway and recovery that take out filtrate are residued in each inside of above-mentioned multiple filter main body
The debris recovery passage of debris is connected to each of above-mentioned multiple filter main body,
With more than 2 filter main bodys filter raw liquid simultaneously,
Described more than 2 filter main bodys stop stock solution supply according to arriving the order filtering the limit,
For stopped the above-mentioned filter main body of stock solution supply, by switching the circulation status of above-mentioned debris recovery passage
Path change mechanism, switches to the state of above-mentioned debris recovery passage circulation,
The debris that will be reclaimed by above-mentioned debris recovery passage, with in above-mentioned more than 2 filter main bodys and corresponding to being somebody's turn to do
The filter main body of debris recovery passage filter main body different, that proceed filter progress filters,
A part in the debris of above-mentioned each filter body interior residual is filtered, as mistake by above-mentioned filter element
Filtrate is recovered via above-mentioned filtrate drain passageway.
8. the filter method described in claim 7, wherein, between above-mentioned multiple filter main bodys, the above-mentioned debris that staggers is returned
Receive the switching period of the circulation status of path.
9. the filter method described in claim 7, wherein, is connected to above-mentioned each filter main body by stock solution supply pump.
10. the filter method described in claim 7, wherein, makes above-mentioned multiple filter main body include filter area or inner capacities
At least any one filter main body different from other filter main bodys, select used mistake according to the treating capacity of stock solution
Filter main body.
Filter method described in 11. claim 7, wherein, from above-mentioned multiple filter main bodys, debris has been recovered
Filter main body starts to wash successively.
Filter method described in 12. claim 7, wherein, possesses different from above-mentioned multiple filter main bodys residual for filtering
Stay the debris filter of liquid, by the debris of the filter main body fewer than the quantity of the filter main body being used for filtration with above-mentioned
Debris filter filters.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-170001 | 2011-08-03 | ||
| JP2011170001A JP5759825B2 (en) | 2011-08-03 | 2011-08-03 | Filtration apparatus and filtration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102908822A CN102908822A (en) | 2013-02-06 |
| CN102908822B true CN102908822B (en) | 2016-12-14 |
Family
ID=
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