CN102908822A - Filtration apparatus and filtration method - Google Patents
Filtration apparatus and filtration method Download PDFInfo
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- CN102908822A CN102908822A CN201110267257XA CN201110267257A CN102908822A CN 102908822 A CN102908822 A CN 102908822A CN 201110267257X A CN201110267257X A CN 201110267257XA CN 201110267257 A CN201110267257 A CN 201110267257A CN 102908822 A CN102908822 A CN 102908822A
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- 238000001914 filtration Methods 0.000 title claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 291
- 238000011084 recovery Methods 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 94
- 238000000034 method Methods 0.000 claims description 37
- 230000008859 change Effects 0.000 claims description 16
- 230000008520 organization Effects 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 23
- 239000007921 spray Substances 0.000 description 23
- 238000005406 washing Methods 0.000 description 19
- 238000001125 extrusion Methods 0.000 description 18
- 238000004140 cleaning Methods 0.000 description 16
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000002671 adjuvant Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000004064 recycling Methods 0.000 description 7
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- 238000006073 displacement reaction Methods 0.000 description 4
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 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
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- 235000013555 soy sauce Nutrition 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention provides a filtration apparatus and a filtration method which can leave a small amount of residual liquid when using a plurality of filter bodies. The present invention includes: a plurality of filter bodies (1)-(3) for filtering a raw liquid, filtrate discharge passages (31)-(33) connected to the filter bodies (1)-(3) to remove the filtrate, residual liquid recovery passages (51)-(53) connected to the filter bodies (1)-(3) to recover the residual liquid remaining in the filter bodies (1)-(3), and passage switching mechanisms (54)-(56) in a circulation state for switching residual liquid recovery passages (51)-(53), wherein the raw liquid is filtered by the filter bodies (1)-(3) at the same time, the residual liquid recovery passage (51) in the status of circulation is switched by the passage switching mechanism (54), and the residual liquid recovered by the residual liquid recovery passage (51) is filtered by the filter body (2) and the filter body (3) other than the filter body (1) corresponding to the residual liquid recovery passage (51).
Description
Technical field
The filter and the filter method that the present invention relates to filter stoste and take out filtered fluid particularly relate to and make stoste filter the diatomaceous earth filter of stoste by the filter element that is coated with the filtration adjuvant such as diatomite and use its filter method.
Background technology
As filter, known have the stoste of making to filter the device (for example following patent documentation 1) of stoste by the filter element that is coated with the filtration adjuvants such as diatomite.In filter element, the thin board type (リ ー Off formula) that metal wire is wound into the cylindric and candle formula that forms or forms with the flat board of metal mesh shaped is for example arranged.Filter element is built in the housing of filter main body and uses.
When filter progress carries out and since filtration resistance increase cause the filter main body in press liter, final arrival filtered the limit, so that the supply of stoste stops.At this moment, the Liquid Residue that residues in the filter body interior can reclaim as filtered fluid by air extrusion.Air extrusion refers to that getting rid of Liquid Residue by the compressed air of high pressure makes it pass through filter element.
But, the stoste poor to filterability, the syrup that for example viscosity is high or contain a large amount of sedimentary magma soy sauce (Sheng Yang Soy oil) when filtering, be difficult to air extrusion and go out Liquid Residue in whole filter main bodys.Even the stoste that filterability is good goes out whole Liquid Residues and reclaims as filtered fluid and also to expend time in by air extrusion.Therefore, the scheme that the Liquid Residue that has proposed in the patent documentation 1 to carry out filtration treatment by air extrusion reclaims under the condition by filter element not.
[patent documentation 1]: TOHKEMY 2009-148680 communique.
Summary of the invention
The problem that invention will solve
The Liquid Residue that reclaims can carry out filtration treatment as stoste in follow-up filter progress.But, when residual spray mixture increases, can increase the burden of the filtration treatment in the follow-up filter progress.In addition, aspect production programming, before carrying out follow-up filter progress, during free interval, there are the problems such as Liquid Residue corruption, from undesirable aspect the health.And then, also exist the kind of stoste in the follow-up filter progress to change, make the Liquid Residue of recovery can not be blended in situation in the stoste of follow-up filter progress.In this case, can only be provided for the special equipment (Liquid Residue filter) of filtration treatment Liquid Residue, perhaps can only be with the Liquid Residue waste treatment.
The Liquid Residue filter can use such as cartridge filter etc.But, because cartridge filter is disposable, thus residual spray mixture to change more at most the frequency of cartridge filter also higher, the required cost of Liquid Residue filtration treatment is also larger.Therefore, the expectation residual spray mixture is few as much as possible.The capacity of the filter main body of filtering is larger, and then residual spray mixture is more when filtration treatment stops.Be in 1 the formation in filter main body as the filter of patent documentation 1, the capacity of filter main body is large, and residual spray mixture also increases.In addition, can not change according to the treating capacity of stoste employed filter area, therefore inefficent.
On the other hand, by 1 above-mentioned filter main body is divided into a plurality of filter main bodys, make the total filter area of these a plurality of filter main bodys be equivalent to the formation of above-mentioned 1 filter main body, can select according to the treating capacity of stoste the quantity of employed filter main body, being employed filter area, is effective therefore.But, if select a plurality of filter main bodys, then can produce the Liquid Residue corresponding to the capacity of these a plurality of filter main bodys, therefore so that residual spray mixture increase.
The invention solves aforesaid existing problem, even its objective is to provide uses a plurality of filter main bodys, also can make residual spray mixture is a small amount of filter and filter method.
Be used for solving the means of problem
In order to reach above-mentioned purpose, filter of the present invention is to filter stoste and the filter that takes out filtered fluid, it is characterized in that, possess: a plurality of filter main bodys of filtering stoste, be connected in each of above-mentioned a plurality of filter main bodys and take out the filtered fluid drain passageway of filtered fluid, the Liquid Residue that is connected in each of above-mentioned a plurality of filter main bodys and reclaims each the inner Liquid Residue that residues in above-mentioned a plurality of filter main bodys reclaims path, path change mechanism with the circulation status that switches above-mentioned Liquid Residue recovery path, wherein, stoste is filtered simultaneously with 2 above filter main bodys, change mechanism by above-mentioned path, switch to the state that above-mentioned Liquid Residue reclaims the path circulation, reclaim that Liquid Residue that path reclaims is used and reclaim the different filter main body of the filter main body of path corresponding to this Liquid Residue and filter by above-mentioned Liquid Residue.
Filter method of the present invention is to filter stoste and the filter method that takes out filtered fluid, it is characterized in that, use a plurality of filter main bodys of filtering stoste, reclaim each that path is connected in above-mentioned a plurality of filter main bodys with taking out the filtered fluid drain passageway of filtered fluid and the Liquid Residue of each inner Liquid Residue that recovery residues in above-mentioned a plurality of filter main bodys, filter simultaneously stoste with 2 above filter main bodys, reclaim the path change mechanism of the circulation status of path by switching above-mentioned Liquid Residue, switch to the state that above-mentioned Liquid Residue reclaims the path circulation, will reclaim that Liquid Residue that path reclaims is used and reclaim the different filter main body of the filter main body of path corresponding to this Liquid Residue and filter by above-mentioned Liquid Residue.
According to the present invention, the Liquid Residue of filter main body is not residual with the state of Liquid Residue, reclaims but make it reclaim path by Liquid Residue, uses the filter main body different from the filter main body that reclaims path corresponding to this Liquid Residue to filter.Therefore, even when using a plurality of filter main body, the Liquid Residue when filtration treatment stops can suppress the Liquid Residue that reclaims at last in the filter main body of Liquid Residue for only being, can reduce residual spray mixture.And then, because stoste is filtered simultaneously with 2 above filter main bodys, therefore reduced and filtered the required time.
Wherein, get rid of the filtered air extruding by the compressed air that utilizes high pressure, the Liquid Residue that residues in the filter main body when arriving the filtration limit is taken out as filtered fluid.Among the present invention, as mentioned above, can be with other filter main body filtration residue liquid.Therefore, the present invention embarrasses situation filterability, that be difficult to filter by air extrusion whole Liquid Residues for stoste, and filters whole Liquid Residues by air extrusion and reclaim time-consuming situation, and is effective especially.
In the filter of the invention described above, preferably be provided between above-mentioned a plurality of filter main bodys, staggering and switch the controlling organization in period that above-mentioned Liquid Residue reclaims the circulation status of path by above-mentioned path change mechanism.In the filter method of the invention described above, preferably between above-mentioned a plurality of filter main bodys, stagger and switch the period that above-mentioned Liquid Residue reclaims the circulation status of path.
During this consists of, reclaim even the 1st filter main body in a plurality of filter main body is transferred to Liquid Residue, other filter main bodys also can be kept filter progress.At this moment, the Liquid Residue of the 1st filter main body can carry out filtration treatment by other filter main bodys.For example, when 3 above filter main bodys were set, the Liquid Residue that is reclaimed by the 1st filter main body was dispersed in remaining filter main body more than 2 and carries out filtration treatment.Then, the Liquid Residue that is reclaimed by the 2nd filter main body carries out filtration treatment with remaining filter main body more than 1.By this filtration treatment, compare with the situation in the disposable filter main body that all remains in last recovery Liquid Residue of the Liquid Residue of other filter main bodys, can reduce the residual spray mixture in the filter main body of last recovery Liquid Residue.Thus, can reduce the filter area of the filter main body that remains in last recovery Liquid Residue, the result can reduce the capacity of the filter main body of last recovery Liquid Residue.In aforesaid the present invention, because the Liquid Residue of filter progress when stopping only be the Liquid Residue in the last filter main body that reclaims Liquid Residue, so more reduce to reclaim at last the capacity of the filter main body of Liquid Residue, it is fewer that residual spray mixture also becomes.
In the filter of the invention described above, preferably stoste is supplied with and be connected in above-mentioned each filter main body with pump.In the filter method of the invention described above, preferably stoste is supplied with and be connected in above-mentioned each filter main body with pump.By this formation, can supply with stoste to each filter main body with each filter main body dedicated pump.Therefore, the whole a plurality of filter main bodys that both can use filter to have also can be used the filter main body of selecting from a plurality of filter main bodys.In addition, the rotation number of the engine by controlling each pump can also easily be set separately the flow of the stoste of supplying with to each filter main body.
In the filter of the invention described above, preferred above-mentioned a plurality of filter main bodys comprise at least any one filter main body different from other filter main bodys of filter area or inner capacities, can select employed filter main body according to the treating capacity of stoste.In the filter method of the invention described above, preferably make above-mentioned a plurality of filter main body comprise at least any one filter main body different from other filter main bodys of filter area or inner capacities, select employed filter main body according to the treating capacity of stoste.Consist of by this, according to the filterconditions such as variation of the filterability of the treating capacity of stoste, stoste, even in the required filter area of per pass filter progress, when internal volume changes, also can select the filter main body by independent assortment.When using filtration adjuvant to filter, as the variation of filtercondition, also can enumerate the variation of the amount of used filtration adjuvant.
In the filter of the invention described above, preferably filter main body from above-mentioned a plurality of filter main bodys, that Liquid Residue has been recovered begins to wash successively.In the filter method of the invention described above, preferably filter main body from above-mentioned a plurality of filter main bodys, that Liquid Residue has been recovered begins to wash successively.Consist of by this, the filter main body that Liquid Residue has been recovered wash during, also can utilize the filtration treatment of other filter main bodys, therefore, the result can shorten the required time of whole operations.
In the filter of the invention described above, preferably possess the Liquid Residue filter that be used for filtration residue liquid different from above-mentioned a plurality of filter main bodys, will filter with above-mentioned Liquid Residue filter than the Liquid Residue of the filter main body of lacking for the quantity of the filter main body of filtering.In the filter method of the invention described above, preferably possess the Liquid Residue filter that be used for filtration residue liquid different from above-mentioned a plurality of filter main bodys, will filter with above-mentioned Liquid Residue filter than the Liquid Residue of the filter main body of lacking for the quantity of the filter main body of filtering.By this formation, stoste can all be taken out as filtered fluid.Therefore, Liquid Residue needn't be left to follow-up filter progress, also can not increase the burden of the filtration treatment in the follow-up filter progress.In addition, in aforesaid the present invention, it only is the Liquid Residue that reclaims at last in the filter main body of Liquid Residue that final Liquid Residue is suppressed to.Therefore, both can alleviate the filtration burden of Liquid Residue filter, also can shorten the activity duration that Liquid Residue filters.In addition, by alleviating the filtration burden, in the Liquid Residue filter, use in the situation of cartridge filter for example, can reduce the required cost of filtration treatment of replacement frequency, reduction Liquid Residue.
The invention effect
According to the present invention, the Liquid Residue of filter main body is reclaimed by Liquid Residue recovery path, filter with the filter main body different from the filter main body that reclaims path corresponding to this Liquid Residue, even in the situation of using a plurality of filter main bodys, Liquid Residue when filtration treatment stops can suppress the Liquid Residue that reclaims at last in the filter main body of Liquid Residue for only being, can reduce residual spray mixture.
Therefore, the present invention embarrasses situation filterability, that be difficult to filter by air extrusion whole Liquid Residues for stoste, and filters whole Liquid Residues by air extrusion and reclaim time-consuming situation, and is effective especially.And then, because stoste is filtered simultaneously with 2 above filter main bodys, can suppress to filter the required time.
Description of drawings
[Fig. 1] illustrates the structure chart of precoating operation of the filter of one embodiment of the invention.
[Fig. 2] illustrates the structure chart of filter progress of the filter of one embodiment of the invention.
[Fig. 3] illustrates the structure chart of Liquid Residue recovery process (1) of the filter of one embodiment of the invention.
[Fig. 4] illustrates the structure chart of Liquid Residue recovery process (2) of the filter of one embodiment of the invention.
[Fig. 5] illustrates the structure chart of Liquid Residue recovery process (3) of the filter of one embodiment of the invention.
[Fig. 6] illustrates that the Liquid Residue of the filter of one embodiment of the invention carries the structure chart of operation.
[Fig. 7] illustrates the structure chart of Liquid Residue filter progress of the filter of one embodiment of the invention.
[Fig. 8] illustrates the structure chart of washing procedure of the filter of one embodiment of the invention.
Specific embodiments
Below, with reference to description of drawings one embodiment of the invention.Fig. 1 is the structure chart of the filter 10 of one embodiment of the invention.This figure also is the structure chart that the precoating operation that illustrates later is described, the schematic configuration of filter 10 at first is described with reference to Fig. 1.Filter 10 is diatomaceous earth filter.Diatomaceous earth filter is to make stoste by being coated with the filter element of filtration adjuvant (diatomite, cellulose, activated carbon etc.), with the device with the stoste clarificationization.
Through the path that is consisted of by pipe arrangement 3 filter main bodys 1 ~ 3 are connected in parallel in original fluid container 20.To the stoste of original fluid container 20 supplies as filtering object.Use whole 3 filter main body 1 ~ 3 o'clock, the stostes in the original fluid container 20 are supplied with to filter main body 1 ~ 3.Stoste is filtered by the filter element 7 ~ 9 that is built in the filter main body 1 ~ 3, takes out filtered fluid from filter main body 1 ~ 3.
Filter main body 1 is at housing 4 built-in a plurality of filter elements 7 cylindraceous.Similarly, filter main body 2, filter main body 3 each comfortable housing 5, housing 6 built-in a plurality of filter elements 8, a plurality of filter element 9.Filter element 7 ~ 9 is with the example diagram of candle formula, is wound into metal wire cylindric and forms.During filtration, form precoated shet on the surface of filter element 7 ~ 9 by above-mentioned filtration adjuvant.
Be filtered by the precoated shet that is formed at filter element 7 ~ 9 surfaces by the stoste of supply port 40 ~ 42 to 1 ~ 3 interior supply of filter main body, form filtered fluid.This filtered fluid flow into the inside of filter element 7 ~ 9 by the gap between the metal wire of filter element 7 ~ 9, is discharged by outlet 43 ~ 45.The filtered fluid of these discharges is recovered in and filters in the flow container 50.
Filter element 7 ~ 9 can use various forms of elements, is not limited to element cylindraceous, and also can be the element that the flat board by metal mesh shaped forms, and be not limited to metallic filter, also can be the filter of resin or cloth or paper etc.In addition, in Fig. 1, filter element 7 ~ 9 is the candle type that hangs in the suspention of the inside of housing 4 ~ 6, but also can be with filter element 7 ~ 9 upright vertical candle type from bottom to top.
Below, for adopting filter 10 to carry out the filtration treatment of stoste, describe by process sequence.At first, in 3 filter main bodys 1 ~ 3, select the quantity of employed filter main body according to the treating capacity of stoste.Below explanation is the situation of using whole 3 filter main bodys 1 ~ 3.Fig. 1 is the structure chart of explanation precoating operation.The path that represents with thick line among Fig. 1 represents the flowing of liquid in the precoating operation.In the precoating operation, drop into filtration adjuvant to the stoste that supplies in the original fluid container 20, it is circulated in original fluid container 20 and filter main body 1 ~ 3, form the precoated shet that filtration adjuvant produces on the surface of filter element 7 ~ 9 thus.
With reference to Fig. 1 the path that circulates in the precoating operation is described.Original fluid container 20 is connected with the filter main body connects, original fluid container 20 is connected with the filter main body connects, original fluid container 20 is connected with the filter main body connects by stoste supply passageway 13 by stoste supply passageway 12 by stoste supply passageway 11.There are pump 17 and valve 14 at stoste supply passageway 11, have pump 18 and valve 15 at stoste supply passageway 12, have pump 19 and valve 16 at stoste supply passageway 13.
In addition, filter main body 1 is connected with the pre-coating solution peripheral passage 21 that has valve 24.Similarly, filter main body 2 is connected with the pre-coating solution peripheral passage 22 that has valve 25, and filter main body 3 is connected with the pre-coating solution peripheral passage 23 that has valve 26.
And then filter main body 1 is connected with the filtered fluid drain passageway 31 that has valve 34.Similarly, filter main body 2 is connected with the filtered fluid drain passageway 32 that has valve 35, and filter main body 3 is connected with the filtered fluid drain passageway 33 that has valve 36.Filtered fluid drain passageway 31 ~ 33rd takes out the path of the filtered fluid that is obtained by filter main body 1 ~ 3.
In above path consists of, by path change mechanism, can switch the state of each path circulation and the state that does not circulate.In the present embodiment, path change mechanism is each valve that is present on each path.Be not limited to above-mentioned path, for other paths that illustrate later, also can switch circulation status by each valve as path change mechanism.Take filter main body 1 as example, by opening valve 24 and shut off valve 34, pre-coating solution peripheral passage 21 forms circulation status, and filtered fluid drain passageway 31 forms the state that does not circulate.
In the precoating operation, open valve 14 ~ 16 and valve 24 ~ 26, close other valves.That is the stoste supply passageway 11 ~ 13 that, represents with thick line among Fig. 1 and pre-coating solution peripheral passage 21 ~ 23 form circulation status.For this circulation status, take filter main body 1 as example, by the driving of pump 17, supply in the filter main body 1 via stoste supply passageway 11 from the stoste of original fluid container 20.And, by the 1 interior discharge of filter main body, turn back in the original fluid container 20 via pre-coating solution peripheral passage 21.
In the precoating operation, in original fluid container 20, drop into the filtration auxiliary material with stoste, supply with to filter main body 1 ~ 3 and in stoste, be suspended with the pre-coating solution that filters auxiliary material.By making this pre-coating solution circulation, at the surface-coated filtration auxiliary material of filter element 7 ~ 9.Make the pre-coating solution period in the time of ten minutes, form precoated shet on the surface of filter element 7 ~ 9.
The precoating operation is transferred to filter progress after finishing.Fig. 2 is the structure chart of explanation filter progress.In filter progress, shown in the thick line of Fig. 2 like that, open valve 34 ~ 36, the shut off valve 24 ~ 26 of in the precoating operation, closing, stoste supply passageway 11 ~ 13 and filtered fluid drain passageway 31 ~ 33 form circulation status thus.
In this circulation status, by the driving of pump 17 ~ 19, supply in the filter main body 1 ~ 3 via stoste supply passageway 11 ~ 13 from the stoste of original fluid container 20.In the precoating operation, form precoated shet on the surface of filter element 7 ~ 9.Therefore, the stoste that supplies in the filter main body 1 ~ 3 is filtered by precoated shet, forms the filtered fluid of clarification.This filtered fluid flow into the inboard of filter element 7 ~ 9, discharges from outlet 43 ~ 45.The filtered fluid of discharging is recovered to by filtered fluid drain passageway 31 ~ 33 and filters in the flow container 50.
When carrying out filter progress, the impurity that contains in the stoste is attached to above-mentioned precoated shet lentamente.Accompany therewith, filtration resistance increases, and presses liter in the housing 4 ~ 6, and final arrival filtered the limit.Therefore, press when being raised to certain value in the housing 4 ~ 6, the supply of stoste stops, and filters to stop.
In the present embodiment, filter the limit according to the order arrival of filter main body 1, filter main body 2, filter main body 3, sequentially stop stoste according to this and supply with.In the moment that stops to supply with to filter main body 1 stoste, the stoste that is not filtered that residues in the filter main body 1 is called Liquid Residue.Also be same situation for filter main body 2 and filter main body 3.
The filter main body 1 that has stopped the stoste supply then is transferred to the Liquid Residue recovery process.After, the order according to filter main body 2, filter main body 3 is transferred to the Liquid Residue recovery process.Thus, for the period of staggering and shifting to the Liquid Residue recovery process, filter 10 possesses for example sequence unit of controlling organization 30().In the present embodiment, by the period that controlling organization 30 staggers the arrival filtration limit, stagger simultaneously and switch the period that Liquid Residue reclaims the circulation status of path 51 ~ 53 by each valve as path change mechanism.In Fig. 1 ~ 5, Fig. 8, obviously easily see in order to make diagram, omitted the diagram of the holding wire of connection control mechanism 30 and each valve.
Stagger and filter the period of the limit, can be by making to different realization of stoste quantity delivered of the per unit filter area of filter main body 1 ~ 3.The adjusting of stoste quantity delivered can be by for example arranging current transformer separately on pump 17 ~ 19, the driving frequency of the engine by controlling organization 30 control pumps 17 ~ 19 is carried out with the rotation number of control engine.Below, the Liquid Residue recovery process that the Liquid Residue recovery process that the Liquid Residue recovery process that will be referred to filter main body 1 is called Liquid Residue recovery process (1), will be referred to filter main body 2 is called Liquid Residue recovery process (2), will be referred to filter main body 3 is called Liquid Residue recovery process (3).
Fig. 3 is the structure chart of explanation Liquid Residue recovery process (1).The thick line of Fig. 3 is illustrated in the path of liquid flow in the Liquid Residue recovery process (1).Press when rising to certain value in the housing 4, pump 17 stops, valve 14 cuts out, and stops to supply with stoste to filter main body 1.Meanwhile, valve 57 is opened, and supplies with the compressed air of high pressure to filter main body 1 via compressed air supply passageway 47 from compressed air supply source 27.Thus, the Liquid Residue in the filter main body 1 is squeezed out by supply port 40, and the filtered fluid in the filter main body 1 squeezes out from outlet 43.Below, the mode that will be by the compressed air of supplying with high pressure squeezes out Liquid Residue or filtered fluid in the filter main body 1 ~ 3 is called air extrusion.
The part of Liquid Residue is filtered by filter element 7, is squeezed out as filtered fluid from outlet 43.In Fig. 3, because valve 34 is in open mode, the filtered fluid that is therefore gone out by air extrusion from outlet 43 is recycled to through filtered fluid drain passageway 31 and filters the flow container 50.
Nearly all Liquid Residue in the filter main body 1 is via supply port 40, is squeezed out as the Liquid Residue of the former liquid status by filter element 7 not.In Fig. 3, valve 14 and valve 64 are closed, and open valve 54, make Liquid Residue reclaim path 51 and form circulation status.Therefore, the Liquid Residue that is squeezed out by supply port 40 reclaims path 51 via Liquid Residue and is recovered in the original fluid container 20.
During filter main body 1 was carried out Liquid Residue recovery process (1), the filter progress in filter main body 2 and the filter main body 3 was proceeded.Therefore, the Liquid Residue that is recycled to the filter main body 1 in the original fluid container 20 filters by filter main body 2 and filter main body 3, reclaims as filtered fluid.
Fig. 4 is the structure chart of explanation Liquid Residue recovery process (2).The thick line of Fig. 4 represents the path of liquid flow in the Liquid Residue recovery process (2).Press when rising to certain value in the housing 5, pump 18 stops, valve 15 cuts out, and stops to filter main body 2 former in feeding.Meanwhile, open valve 58, supply with compressed air via compressed air supply passageway 48 to filter main body 2 from compressed air supply source 27.Thus, the Liquid Residue in the filter main body 2 squeezes out from supply port 41, and the filtered fluid in the filter main body 2 squeezes out from outlet 44.
The part of Liquid Residue is filtered by filter element 8, is squeezed out as filtered fluid from outlet 44.In Fig. 4, because valve 35 is in open mode, therefore is recovered to via filtered fluid drain passageway 32 by the filtered fluid of air extrusion from outlet 44 and filters the flow container 50.
Nearly all Liquid Residue in the filter main body 5 is via supply port 41, is squeezed out as the Liquid Residue of the former liquid status by filter element 8 not.In Fig. 4, valve 15 and valve 65 are closed, and open valve 55, make Liquid Residue reclaim path 52 and form circulation status.Therefore, the Liquid Residue that is squeezed out by supply port 41 reclaims path 52 via Liquid Residue and is recovered in the original fluid container 20.
On the other hand, during filter main body 2 was carried out Liquid Residue recovery process (2), the filter progress in the filter main body 3 was proceeded.Therefore, the Liquid Residue that is recycled to the filter main body 2 in the original fluid container 20 filters by filter main body 3, reclaims as filtered fluid.
Fig. 5 is the structure chart of explanation Liquid Residue recovery process (3).The thick line of Fig. 5 represents the path of liquid flow in the Liquid Residue recovery process (3).Press when rising to certain value in the housing 6, pump 19 stops, valve 16 cuts out, and stops to supply with stoste to filter main body 3.Meanwhile, open valve 59, supply with compressed air via compressed air supply passageway 49 to filter main body 3 from compressed air supply source 27.Thus, the Liquid Residue in the filter main body 3 squeezes out from supply port 42, and the filtered fluid in the filter main body 3 squeezes out from outlet 45.
The part of Liquid Residue is filtered by filter element 9, is squeezed out as filtered fluid from outlet 45.In Fig. 5, because valve 36 is in open mode, therefore is recovered to via filtered fluid drain passageway 33 by the filtered fluid of air extrusion from outlet 45 and filters the flow container 50.
Nearly all Liquid Residue in the filter main body 3 is via supply port 42, is squeezed out as the Liquid Residue of the former liquid status by filter element 9 not.In Fig. 5, valve 16 and valve 66 are closed, and open valve 56, make Liquid Residue reclaim path 53 and form circulation status.Therefore, the Liquid Residue that squeezes out from supply port 42 reclaims path 53 via Liquid Residue and is recovered to the original fluid container 20.
In the present embodiment, the Liquid Residue that is recycled to the filter main body 1 in the original fluid container 20 by supply port 40 filters with filter main body 2 and filter main body 3, reclaims as filtered fluid.In addition, the Liquid Residue that is recycled to the filter main body 2 in the original fluid container 20 by supply port 41 filters with filter main body 3, reclaims as filtered fluid.That is, the Liquid Residue of filter main body 1 and filter main body 2 reclaims but reclaim path with Liquid Residue not as unfiltered stoste and residual, uses and reclaims the different filter main body of the filter main body of path corresponding to this Liquid Residue and filter.Therefore, even use 3 filter main bodys 1 ~ 3, it only is the Liquid Residue that is transferred at last in the filter main body 3 of Liquid Residue recovery process that the Liquid Residue when filter progress stops also can be suppressed to, and can reduce residual spray mixture.
In the present embodiment, the part of the Liquid Residue of filter main body 1 and filter main body 2 is utilized air extrusion and is filtered, reclaims by filter element 7 and filter element 8.On the other hand, for the situation of the stoste of filtering the poor difficult filterability of filterability, be difficult to come whole Liquid Residues in the filtering filter main body by air extrusion.Even if the stoste that filterability is good is filtered whole Liquid Residues and is also expended time in.In the present embodiment, Liquid Residue nearly all when air extrusion is by filter element 7 and filter element 8, but be recovered in the original fluid container 20, use as mentioned above the filter main body different from the filter main body that reclaims path corresponding to this Liquid Residue to filter.Therefore, the present embodiment is embarrassed situation filterability, that be difficult to filter by air extrusion whole Liquid Residues for stoste, and filters whole Liquid Residues by air extrusion and reclaim time-consuming situation, and is effective especially.
In addition, in the present embodiment, in filter progress, because stoste is filtered simultaneously with 3 filter main bodys 1 ~ 3, reduced and filtered the required time.In addition, by using simultaneously filter main body 1 ~ 3, the precoating operation of Fig. 1 can be finished 3 parts of filter main body 1 ~ 3 in the lump.Therefore, do not need to carry out follow-up precoating operation, can shorten the required time of whole operations, the path between can simplifying working process simultaneously switches.
And then, in the present embodiment, between 3 filter main bodys 1 ~ 3, the period from from filter progress to Liquid Residue recovery process switched path of staggering.Therefore, as mentioned above, even filter main body 1 is transferred to Liquid Residue recovery process (1), filter main body 2 and filter main body 3 also can be kept filter progress.At this moment, the Liquid Residue of filter main body 1 is scattered in filter main body 2 and filter main body 3, carries out filtration treatment.Then, the Liquid Residue that reclaims from filter main body 2 carries out filtration treatment with filter main body 3.In this filtration treatment, compare with the situation that Liquid Residue with filter main body 1 and filter main body 2 all remains in the filter main body 3 once, can reduce the residual spray mixture that remains in the filter main body 3.Thus, can reduce the filter area of the filter main body 3 of last recovery Liquid Residue, the result can reduce the capacity of filter main body 3.As mentioned above, in the present embodiment, the Liquid Residue when filter progress stops can only be the Liquid Residue in the last filter main body 3 that reclaims Liquid Residue, so more reduces the capacity of filter main body 3, and residual spray mixture is fewer.
In the present embodiment, because filter main body 1 ~ 3 has respectively pump 17, pump 18, pump 19, can make to the stoste quantity delivered of filter main body 1 ~ 3 different.Thus, the filter main body that can stagger 1 ~ 3 arrives the period of filtering the limit, i.e. period from filter progress to Liquid Residue recovery process switched path.Can be for example as mentioned above to the adjusting of the stoste quantity delivered of filter main body 1 ~ 3, the rotation number of the engine by control pump 17 ~ 19 realizes.
In addition, in the present embodiment, owing to possess 3 filter main bodys 1 ~ 3, therefore can select employed filter main body 1 ~ 3 according to the treating capacity of stoste.
More than, to until the operation of Liquid Residue recovery process (3) is illustrated, in the moment that Liquid Residue recovery process (3) stops, residual in original fluid container 20 have a Liquid Residue that reclaims by Liquid Residue recovery process (3).This Liquid Residue can filter by the filtration treatment of next time, also can append filter plant, filter before being transferred to next filtration treatment.Below, the filtration that residues in the Liquid Residue in the original fluid container 20 is described.
Fig. 6 is that the explanation Liquid Residue is carried the structure chart of operation, and Fig. 7 is the structure chart of explanation Liquid Residue filter progress.Fig. 6 is identical structure with Fig. 7, and the thick line of Fig. 6 represents the path of liquid flow in the Liquid Residue conveying operation, and the thick line of Fig. 7 represents the path of liquid flow in the Liquid Residue filter progress.In Fig. 6 and Fig. 7, appended the equipment that is used for filtration residue liquid for the filter 10 shown in Fig. 1 ~ 5.Fig. 6 and Fig. 7 append equipment with this and attach most importance to and illustrate, and omit structure identical of illustrated part and Fig. 1 ~ 5 among Fig. 6 and Fig. 7.
The equipment that appends being used for filtration residue liquid with reference to Fig. 6 describes.Stoste supply passageway 13 is connected with the Liquid Residue recycling can by Liquid Residue carrying path 86 connections that have valve 87.Liquid Residue recycling can 70 is connected with the Liquid Residue filter by Liquid Residue supply passageway 88 connections that exist pump 89 to be connected with valve.Liquid Residue filter 90 possesses filter 92 in housing 91, the Liquid Residue by filter 92 is recovered as filtered fluid.Liquid Residue filter 90 be connected flow container 50 and connect by filtered fluid supply passageway 94.
In said structure, to carry in the operation at the Liquid Residue of Fig. 6, valve 16 cuts out, valve 87 is opened, pump 19 runnings.Thus, the Liquid Residue in the original fluid container 20 of Fig. 5 is recycled in the Liquid Residue recycling can 70 via stoste supply passageway 13 and Liquid Residue carrying path 86.In the Liquid Residue filter progress of Fig. 7, valve 93 is opened, pump 89 runnings.Thus, the Liquid Residue in the Liquid Residue recycling can 70 filters with Liquid Residue filter 90, is recovered to via filtered fluid drain passageway 94 and filters in the flow container 50.
By carry the Liquid Residue filter progress of operation and Fig. 7 via the Liquid Residue of Fig. 6, stoste all can be taken out as filtered fluid.Therefore, Liquid Residue needn't remain in the follow-up filter progress, also can not increase the burden of the filtration treatment in the follow-up filter progress.In addition, as mentioned above, in the present embodiment, final Liquid Residue can suppress the Liquid Residue that is transferred at last in the filter main body 3 of Liquid Residue recovery process for only being.Therefore, the filtration burden of Liquid Residue filter 90 can be alleviated, and the activity duration that Liquid Residue filters can be shortened.In addition, by alleviating the filtration burden, use at Liquid Residue filter 90 in the situation of cartridge filter for example, can reduce replacement frequency, suppress the required cost of filtration treatment of Liquid Residue.
In addition, the Liquid Residue that filters with Liquid Residue filter 90 is not limited to the Liquid Residue of 1 filter main body.Even it is a plurality of being transferred at last the filter main body of Liquid Residue recovery process, if this quantity is lacked than the quantity of the initial used filter main body of filter progress, then final residual spray mixture can be lacked than the residual spray mixture of the initial used filter main body part of filter progress.Therefore, even in this case, also can alleviate the filtration burden of Liquid Residue filter 90, the activity duration that the shortening Liquid Residue filters, obtain to be reduced by the replacement frequency of Liquid Residue filter the effect of the cost that brings.
Then, washing procedure is described.In the explanation of above-mentioned Fig. 1 ~ 7, although omitted the explanation of washing procedure, when the Liquid Residue recovery process (1) of filter main body 1 stops, can be transferred to the washing procedure of filter main body 1.Similarly, when Liquid Residue recovery process (2) stops, the washing procedure of filter main body 2 can be transferred to, when Liquid Residue recovery process (3) stops, the washing procedure of filter main body 3 can be transferred to.
Fig. 8 is the structure chart of explanation washing procedure.The path of liquid flow when the thick line of Fig. 8 represents that filter main body 1 is transferred to washing procedure.Among Fig. 8, although filter main body 1 is transferred to washing procedure, the filter progress of filter main body 2 and filter main body 3 is proceeded.Valve 24 and valve 34 are closed, and valve 74 is opened.Therefore,, be discharged in the filter main body 1 from outlet 43 via cleaning solution supply passageway 83 from the cleaning solution of cleaning solution supply source 28.Because this cleaning solution flows to face side from the rear side of filter element 7, flows by this, the filtration auxiliary material that form the precoated shet on filter element 7 surfaces are peeled off.
In the path of supply port 40 sides of filter main body 1, shut off valve 14 and valve 54, open valve 64, drainage channel 61 forms circulation status.Therefore, the filtration auxiliary material of having peeled off are recycled in the displacement can 60 via drainage channel 61 with cleaning solution.
More than, the washing procedure of filter main body 1 is illustrated, the washing procedure of filter main body 2 and filter main body 3 is identical with the situation of filter main body 1.Therefore, for the washing procedure of filter main body 2 and filter main body 3, detailed is only carried out simple declaration.Valve 75 and valve 76 are corresponding to valve 74, and cleaning solution supply passageway 84 and cleaning solution supply passageway 85 are corresponding to cleaning solution supply passageway 83.
When Liquid Residue recovery process (2) stopped, filter main body 2 was transferred to washing procedure, and cleaning solution is discharged in the filter main body 2.The filtration auxiliary material of peeling off from filter element 8 are recycled to the displacement can 60 via drainage channel 62 with cleaning solution.Similarly, when Liquid Residue recovery process (3) stopped, filter main body 3 was transferred to washing procedure, and cleaning solution is discharged in the filter main body 3.The filtration auxiliary material of peeling off from filter element 9 are recycled to the displacement can 60 via drainage channel 63 with cleaning solution.
In the above-described embodiment, even during the filter main body 1 that Liquid Residue has been recovered is washed, other utilize the filter progress processing of filter main body 2 and filter main body 3 still carrying out, and the result can shorten the required time of whole operations.
The present embodiment is to use simultaneously the example of 3 filter main bodys 1 ~ 3 of filter 10, but also can use simultaneously selected 2 filter main bodys according to the treating capacity of stoste.In addition, the number of the filter main body that filter possesses both can be 2, also can be more than 4.And then, for the example of candle formula diatomaceous earth filter is illustrated, also can be the filter of other kinds to filter 10 still.For example, both can be the diatomaceous earth filter of thin board type, also can be not use diatomaceous filter.
[embodiment]
Below, with reference to embodiment, the present embodiment is further specifically described.Embodiment has the structure same with filter shown in Figure 1 10, through each operation of using Fig. 1 ~ Fig. 5 explanation stoste is carried out filtration treatment.In addition, embodiment has also implemented the Liquid Residue conveying operation of Fig. 6, Liquid Residue filter progress and the washing procedure of Fig. 7.
Filter main body 1 is identical with the specification of filter main body 2, and filter area is 4m
2, internal volume is 400L.Housing 4 and housing 5 are the drum of stainless steel.Filter element 7 and filter element 8 are the candle-shaped filter of each stainless steel 19, diameter 60mm, length 1200mm.The filter area of filter main body 3 is 1m
2, internal volume is 100L.Housing 6 is the drum of stainless steel.Filter element 9 is the candle-shaped filter of stainless steel 8, diameter 60mm, length 700mm.
The Liquid Residue filter 90 of Fig. 6 is, the bag-shaped bag type filter 92 of built-in 1 diameter 170mm, length 800mm in the housing 91 of the drum of stainless steel.In addition, stoste is used the liquid glucose 20kL of difficult filterability.
In the precoating operation of Fig. 1, drop into the liquid glucose of stoste to original fluid container 20, drop into the diatomite 13.5kg that is used for precoating.After they are fully stirred, will in stoste, be suspended with diatomaceous pre-coating solution and supply with to housing 4 ~ 6 simultaneously by pump 17 ~ 19.The flow of the pre-coating solution of this moment is that the standard of filter main body 1 and filter main body 2 is that the standard of 200L/min, filter main body 3 is 50L/min.After the circulation of pre-coating solution begins tens of minutes, at the surperficial precoated diatomite of filter element 7 ~ 9, can confirm that clarificationization occurs the pre-coating solution that is back to original fluid container 20.
After confirming that the precoating operation is finished, open valve 34 ~ 36, follow shut off valve 24 ~ 26, be transferred to the filter progress of Fig. 2.The standard of the flow of the filtered fluid of being discharged by filter main body 1 ~ 3 at this moment, is that filter main body 1 be that 160L/min, filter main body 2 are 25L/min for 120L/min, filter main body 3.When carrying out filter progress, the precoated shet on the surface that is formed at filter element 7 ~ 9 adheres to impurity contained in the liquid glucose, the discharge rate slow decreasing of filtered fluid., set in an embodiment: the frequency of control pump 17 ~ 19 to be reaching above-mentioned flow on one side for this reason, continue to filter on one side, reach moment of 400kPa in the interior pressure of housing 4 ~ 6, enter the Liquid Residue recovery process.
The beginning filter progress is after 60 minutes, and the interior pressure of housing 4 reaches 400kPa, is transferred to the Liquid Residue recovery process (1) of Fig. 3.At this moment, pump 17 stops, and valve 14 cuts out.Meanwhile, open valve 57, via compressed air supply passageway 47, to the compressed air of housing 4 internal feed 450kPa, and then open valve 54 from compressed air supply source 27.The part of the Liquid Residue of housing 4 inside is recycled in the filtration flow container 50 via filtered fluid drain passageway 31 as filtered fluid by filter element 7, is recycled in the original fluid container 20 but most of Liquid Residue reclaims path 51 via Liquid Residue.In addition, the Liquid Residue of the filter main body 1 that is recovered mixes with the stoste of original fluid container 20 inside, filters with filter main body 2 and filter main body 3.
The beginning filter progress is after 80 minutes, and the interior pressure of housing 5 reaches 400kPa, is transferred to the Liquid Residue recovery process (2) of Fig. 4.At this moment, pump 18 stops, and valve 15 cuts out.Meanwhile, open valve 58, via compressed air supply passageway 48, to the compressed air of housing 5 internal feed 450kPa, open again valve 55 from compressed air supply source 27.The part of the Liquid Residue of housing 5 inside is recycled to via filtered fluid drain passageway 32 by filter element 8 and filters in the flow container 50, is recycled in the original fluid container 20 but most of Liquid Residue reclaims path 52 via Liquid Residue.In addition, the Liquid Residue of the filter main body 2 that is recovered mixes with the stoste of original fluid container 20 inside, filters with filter main body 3.
The beginning filter progress is after 100 minutes, and the interior pressure of housing 6 reaches 400kPa, is transferred to the Liquid Residue recovery process (3) of Fig. 5.At this moment, pump 19 stops, and valve 16 cuts out.Meanwhile, open valve 59, via compressed air supply passageway 49, to the compressed air of housing 6 internal feed 450kPa, open again valve 56 from compressed air supply source 27.The part of the Liquid Residue of housing 6 inside is recycled to via filtered fluid drain passageway 33 by filter element 9 and filters in the flow container 50, is recycled in the original fluid container 20 but most of Liquid Residue reclaims path 53 via Liquid Residue.
Then, the Liquid Residue that is transferred to Fig. 6 is carried operation, and the Liquid Residue that is recycled to the filter main body 3 in the original fluid container 20 by Liquid Residue recovery process (3) utilizes pump 19 to be delivered in the Liquid Residue recycling can 70 of Fig. 6.The residual spray mixture of carrying at this moment, is 90L.When the conveying of Liquid Residue finishes, be transferred to the Liquid Residue filter progress of Fig. 7.The Liquid Residue of Liquid Residue recycling can 70 filters with Liquid Residue filter 90, is recovered to filter in the flow container 50.The standard of the filtering traffic of this moment is 10L/min.Even in the Liquid Residue filter progress, when filtering, the discharge rate slow decreasing of filtered fluid, but can filter whole Liquid Residue 90L in the time of 30 minutes at beginning Liquid Residue filter progress.In addition, in the Liquid Residue filter progress, the interior pressure of final housing is 150kPa.
In an embodiment, implement the washing procedure same with above-mentioned embodiment.The filter main body 1 of Liquid Residue recovery process (1) of Fig. 3 of being through with is transferred to the washing procedure of Fig. 8.As cleaning solution, use 60 ℃ warm water.Open valve 74, from cleaning solution supply source 28 via cleaning solution supply passageway 83,1 this warm water of interior release from outlet 43 to the filter main body.After repeating to discharge this warm water 3 times, the inside of Visual Confirmation filter main body 1, results verification, the diatomite that is attached to the surface of filter element 7 all peels off.Filter main body 2 to the Liquid Residue recovery process (2) of the Fig. 4 that is through with is implemented same washing, and the filter main body 3 of the Liquid Residue recovery process (3) of the Fig. 5 that is through with is implemented same washing.For the filter element 8 of filter main body 2 and the filter element 9 of filter main body 3, confirm that also being attached to its surperficial diatomite all peels off.
As mentioned above, in the present embodiment, the filter area of filter main body 1 and filter main body 2 is 4m
2, internal volume is 400L, the filter area of filter main body 3 is 1m
2, internal volume is 100L.At this moment, total filter area is 9m
2, total capacity is 900L.For this structure, in the present embodiment, as mentioned above, final residual spray mixture is 90L.Relative therewith, compare the operation of example 1, comparative example 1 is that 1, the filter area of filter main body are 9m for the number of filter main body
2, internal volume is 850L.In comparative example 1, residual spray mixture is 780L.And then, compare the operation of example 2, filter main body 1 ~ 3, omission Liquid Residue recovery process (1) ~ (3), taking-up filter main body 1 ~ 3 separately the filtered fluid of comparative example 2 for using present embodiment.The structure of comparative example 2 is divided into 3 filter main bodys, the total filter area 9m of 3 filter main bodys of comparative example 2 for the filter main body with comparative example 1
2Filter area 9m with the filter main body of comparative example 1
2Identical.In comparative example 2, the residual spray mixture of filter main body 1 and filter main body 2 370L that respectively does for oneself, the residual spray mixture of filter main body 3 is 90L, residual spray mixture add up to 830L.
To sum up, although the total filter area in the present embodiment is identical with comparative example 2 with comparative example 1, compare with comparative example 2 with comparative example 1, can significantly reduce residual spray mixture.Hence one can see that, compares with comparative example 2 with comparative example 1, and embodiment can alleviate the filtration burden of Liquid Residue filter 90, filters the required activity duration but also can shorten Liquid Residue.
[symbol description]
1,2,3 filter main bodys
11,12,13 stoste supply passageways
17,18,19 pumps
20 original fluid containers
30 controlling organizations
31,32,33 filtered fluid drain passageways
47,48,49 compressed air supply passageways
51,52,53 Liquid Residues reclaim path
54,55,56 valves (path change mechanism)
60 displacement cans
61,62,63 drainage channels
70 Liquid Residue recycling cans
83,84,85 cleaning solution supply passageways
90 Liquid Residue filters.
Claims (12)
1. filter, it is to filter stoste and the filter that takes out filtered fluid, it is characterized in that possessing
Filter a plurality of filter main bodys of stoste,
Be connected in each of above-mentioned a plurality of filter main bodys and take out the filtered fluid drain passageway of filtered fluid,
The Liquid Residue that is connected in each of above-mentioned a plurality of filter main bodys and reclaims each the inner Liquid Residue that residues in above-mentioned a plurality of filter main bodys reclaims path, and
Switch the path change mechanism that above-mentioned Liquid Residue reclaims the circulation status of path, wherein,
Stoste is filtered simultaneously with 2 above filter main bodys,
Change mechanism by above-mentioned path, switch to the state that above-mentioned Liquid Residue reclaims the path circulation,
Reclaim that Liquid Residue that path reclaims is used and reclaim the different filter main body of the filter main body of path corresponding to this Liquid Residue and filter by above-mentioned Liquid Residue.
2. filter claimed in claim 1 wherein, is provided for staggering between above-mentioned a plurality of filter main bodys and switches the controlling organization in period that above-mentioned Liquid Residue reclaims the circulation status of path by above-mentioned path change mechanism.
3. filter claimed in claim 1 wherein, is connected in above-mentioned each filter main body with the stoste supply with pump.
4. filter claimed in claim 1, wherein, above-mentioned a plurality of filter main body comprises at least any one filter main body different from other filter main bodys of filter area or inner capacities, can select employed filter main body according to the treating capacity of stoste.
5. filter claimed in claim 1, wherein, filter main body from above-mentioned a plurality of filter main bodys, that Liquid Residue has been recovered begins to wash successively.
6. filter claimed in claim 1, wherein, possess the Liquid Residue filter that be used for filtration residue liquid different from above-mentioned a plurality of filter main bodys, will filter with above-mentioned Liquid Residue filter than the Liquid Residue of the filter main body of lacking for the quantity of the filter main body of filtering.
7. filter method, it is to filter stoste and the filter method that takes out filtered fluid, it is characterized in that,
Use a plurality of filter main bodys of filtering stoste,
Reclaim each that path is connected in above-mentioned a plurality of filter main bodys with taking out the filtered fluid drain passageway of filtered fluid and the Liquid Residue of each inner Liquid Residue that recovery residues in above-mentioned a plurality of filter main bodys,
Filter simultaneously stoste with 2 above filter main bodys,
Reclaim the path change mechanism of the circulation status of path by switching above-mentioned Liquid Residue, switch to the state that above-mentioned Liquid Residue reclaims the path circulation,
To reclaim that Liquid Residue that path reclaims is used and reclaim the different filter main body of the filter main body of path corresponding to this Liquid Residue and filter by above-mentioned Liquid Residue.
8. filter method claimed in claim 7, wherein, between above-mentioned a plurality of filter main bodys, the switching period that the above-mentioned Liquid Residue that staggers reclaims the circulation status of path.
9. filter method claimed in claim 7 wherein, is connected in above-mentioned each filter main body with the stoste supply with pump.
10. filter method claimed in claim 7, wherein, make above-mentioned a plurality of filter main body comprise at least any one filter main body different from other filter main bodys of filter area or inner capacities, select employed filter main body according to the treating capacity of stoste.
11. filter method claimed in claim 7, wherein, filter main body from above-mentioned a plurality of filter main bodys, that Liquid Residue has been recovered begins to wash successively.
12. filter method claimed in claim 7, wherein, possess the Liquid Residue filter that be used for filtration residue liquid different from above-mentioned a plurality of filter main bodys, will filter with above-mentioned Liquid Residue filter than the Liquid Residue of the filter main body of lacking for the quantity of the filter main body of filtering.
Applications Claiming Priority (2)
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Also Published As
| Publication number | Publication date |
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| KR101763168B1 (en) | 2017-07-31 |
| KR20130016006A (en) | 2013-02-14 |
| JP2013031819A (en) | 2013-02-14 |
| JP5759825B2 (en) | 2015-08-05 |
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