CN1088469A - The device of cross-flow pre-coating method and this method of realization - Google Patents
The device of cross-flow pre-coating method and this method of realization Download PDFInfo
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- CN1088469A CN1088469A CN93114273A CN93114273A CN1088469A CN 1088469 A CN1088469 A CN 1088469A CN 93114273 A CN93114273 A CN 93114273A CN 93114273 A CN93114273 A CN 93114273A CN 1088469 A CN1088469 A CN 1088469A
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- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title description 27
- 239000012065 filter cake Substances 0.000 claims abstract description 45
- 239000000706 filtrate Substances 0.000 claims abstract description 18
- 230000008595 infiltration Effects 0.000 claims abstract description 12
- 238000001764 infiltration Methods 0.000 claims abstract description 12
- 238000011045 prefiltration Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims 1
- 239000012466 permeate Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 235000013361 beverage Nutrition 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 206010061876 Obstruction Diseases 0.000 description 1
- 229920003071 Polyclar® Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019990 fruit wine Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000015040 sparkling wine Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/147—Microfiltration
-
- 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
- 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
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
- B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- 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
- B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
- B01D29/56—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 multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—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 multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/16—Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
Abstract
In a kind of cross-flow pre-coating method, the filtrate that will contain pre-filter pulp and selectively be added with filter aid is sent at least one by the opening on filter chamber one end and is roughly columnar filter chamber.Filter chamber is made of the filter basket that is located in the pressure vessel.The filter cake that filtrate flow forms through the filter medium of filter chamber appointment, and as permeate discharge.Filter cake is formed in filter chamber by the filtrate of containing filter aid at first, and described filter medium is passed in the filtrate infiltration.Therefore, in order to prolong the service life of filter medium, with a tributary with approximate axial flow through the residue opening of filter chamber to the other end.This tributary is in case from the discharge of residue opening, and it just turns back to first opening of filter chamber from the outside of filter chamber.
Description
The present invention relates to the cross-flow pre-coating method in claim 1 preamble.
The invention further relates to the filter basket of the cross-flow pre-coating method of realizing claim 6 preamble and the pre-coating device of cross-flow of claim 10 preamble.
Coming the method for filter beverages and chemicals, medicine or similar liquids by the insoluble granule in the separating liquid has been known techniques.In this case, filter aid is added in the untreated pre-filter pulp, makes the pre-coated filter aid agent form filter cake.The solid particle rinsing that will be deposited on then in the filter cake is clean, again with filter aid with added any stabilizing agent regenerate (as patent EP0460499).Attempt when in a single day condition satisfies like this, but one can be filtered and the back filtration in presetting with same filter cake repeated application.In more detail, the pre-filtering pre-filter pulp that contains constant filter aid compound through metering enables to produce the filter cake of the deposition of 10-50mm thickness.Suspended particles in staying filter no longer change, or in case reached maximum when allowing pressure reduction, then carry out rinsing with solvent to being filtered the particle that remains in the liquid in the filter cake.The back filter relate to through pre-filtered liquid by the rinsing that during pre-filtering, forms and the filtration as the filter cake of filter medium of sterilizing.Clean again with appropriate solvent afterwards.In order to make this method energy continued operation, the precoating of filter cake and pre-filtering are to carry out in first filter, then filter and then carry out in second filter in downstream.Realize that the employed filter of this filter method comprises a boiler filter, and filter cake is formed on the dish type filter element.By make this disc spins can remove filter cake fully with motor-driven, the sealing of this machine costs an arm and a leg.And this filter maintenance load is big also easily to go wrong.
The present invention relates to a kind of thick and/or thin a kind of cross-flow pre-coating method (Crossflow Precoating Process) that is called that filters that is different from.This method only some common steps in the little cross-flow of prior art (micro-crossflow) method is used.Especially useful to the sort of filter basket that has an additional outlet that is used for residuals, this is the necessary condition of little cross-flow filtration square law device.Here, residuals is discharged by this outlet, and is not so just under the situation of the filter basket that is provided with filter bag (filter bag), and it is to be undertaken by removing the filter bag that comprises residuals.The holder basket (Support baskets) that has filter bag only is used for absorbing the pressure that puts on this holder basket from the inside of filter chamber, and the volume of filter chamber is then determined by filter bag and filter basket.
In other known filter method, these methods comprise the cleaning process again that combines with filter basket itself, solids by with general filter operation in filtrate port in the applied opposite liquid flow path direction discharge.
These filter methods have a common shortcoming, it is the so fast threshold value that consequently reaches very soon that the deposited particles in the filter medium is accumulated during filtering, in this case, filter process must interrupt, even and the whole filter medium of the solids of precoating need be removed from the filter chamber.
Problem to be solved by this invention mainly is to provide a kind of filter method, and in this method, in a single day filter cake forms just can be for more time as filter medium, the regeneration of energy delayed filtering device.Method of the present invention also should be particularly suitable for automated production.
Be suitable for realizing that the device of this method also should have minimum moving component, thereby extra energy consumes low (except pump draws the energy that the liquor charging body is consumed); This device should be not easy to wear and be broken, easy break-down not yet.
Cross-flow pre-coating method of the present invention is distinguished by the feature of describing in claim 1 characteristic.
This method is characterised in that, formed filter cake (comprising the precoating auxiliary agent) in case pass filter basket by the approximate width of cloth jet (comprising filter aid) of filtrate, then contain the undesirable filter cake that reduces percent of pass increase by filter chamber vertically in one almost be that the foundation in axial tributary is inhibited, the inlet that turns back to filter chamber is then discharged by the outlet of the residuals in the filter chamber in this axial tributary.Unexpected effect is, this axial tributary has cleaning action in fact to the inner surface of filter cake, and this makes that the service life of filter cake is longer in the filtration operation.Yet, in the filtration operation of this stabilisation, because the effect filter cake of filter aid is keeping this effect remaining effectively aspect the filtration minuteness particle in the more deep layer of this filter cake still intactly.One ideally, the axial tributary of this part that return has reached certain balance at the filter cake of precoating (filter aid) with because cross-flow acts between the etch of its inner surface.
Method of the present invention is particularly suitable for making the processing technology of beverage such as beer, fruit wine, fruit syrup and light sparkling wine etc.Yet this filter method also can utilize on other field such as varnish and coatings industry.In this case, refuse to be processed is few.It also is applicable to microfiltration, and for this microfiltration, the cross-flow method is uneconomic in the past.
The advantage of the another embodiment of cross-flow pre-coating method (this embodiment uses the filter basket with approximate circle tubular filter chamber) is to wash step again described in the accessory claim again 2, so that remove discarded filter cake fully from filter chamber or filter basket.Mouthful insert the liquid into filter under pressure by one in filter infiltration, this liquid flows in the filter basket from the outside, collects the surplus materials of filter cake in the basket and by opening residue is discharged.Especially, filter cake at first is not dissolved in water, and this makes it can pump the filter chamber.This method brings any shortcoming can for the filter with dish type filter, and in this device, discarded filter cake must rotate this filter disc with machinery it is worn away.Except the advantage that from the problem that this method solves is set, obtains, also should see, promptly having only minimum dead space volume, so can keep the general construction volume of filter very little because filter basket adapts to the total measurement (volume) amount of filtering casing easily well.
This cross-flow pre-coating method (comprise and remove discarded filter cake) is particularly suitable for automated production.Known parameters that depends in the filter process to be monitored such as sepage stream and/or the pressure reduction described in the claim 3 just can be realized automated production with the mechanically actuated valve-off.
As described in claim 4, although need continuous treatment step during the filtrate of continuous filtration accumulation, the continued operation of this cross-flow pre-coating method is still possible.Thereby store in the middle of not needing basically or buffering.
Be suitable for realizing that the filter basket of cross-flow pre-coating method has as described constituted the basic structure of filter, filter basket has the filter cake of precoating (filter aid).Described filter basket is characterized in that the opening of standard in filter basket also is provided with the residue opening (usually at the top).
According to claim 7, the washing and cleaning operation step requires filter basket which floor concentric layer is arranged again, and according to Claim 8, its intermediate layer is to filtration role maximum, and outer penetrating in the liquid stream at two possible width of cloth especially has the support effect.Confirmed already that only was to have the intermediate layer that the sieve mesh width is the 50-60 micron.
In claim 10, described a step that in pre-coating device, can not find usually,,, or be connected with filtrate opening in filter or the pressure vessel with the pipeline of the closed center valve of residue opening and automatic control system by this.
The filter that only an approximate circle tubular filtering bodies is contained in the pressure vessel is particularly conducive to the volume that reduces filter.However, yet claim 11 has been described a kind of considerable modification, and is especially all the more so when bigger filter.
Can understand the present invention in more detail by following description.
Utilize 8 accompanying drawings to describe embodiments of the invention, they are expressed as follows respectively:
Fig. 1 represents the whole cross-flow precoating schematic representation of apparatus that is used to work continuously;
Fig. 2 a represents to be used for the cut-away view of the filter of said apparatus;
Fig. 2 b represents to comprise the filter basket figure of three concentric layers (section);
Fig. 3 represents the cut-away view of a modification of filter;
Fig. 4 represents the part diagrammatic sketch that whole device is activated when filter cake forms;
Fig. 5 represents the part schematic diagram of whole device work when filter cake is stablized;
The part diagrammatic sketch of device work when Fig. 6 represents filter cake regeneration;
The part diagrammatic sketch of device work when Fig. 7 represents to remove filter cake;
The part diagrammatic sketch of whole device when Fig. 8 represents to be used for washing again.
The core of the pre-coating device of cross-flow is the filter 1 and 2 of two identical alternations as shown in Figure 1.
The cut-away view of Fig. 2 a provides the further details of relevant filter, and in the drawings, label 3 shows a withstand voltage filter housing with lid 4 sealings, has held a holder basket or filter basket 5 in the housing 3.
Seen in Fig. 2 b, filter basket 5 comprises three concentric layers 50,51 and 52, and its innermost layer 50 and outermost layer 52 are as the scalping supporting layer, and intermediate layer 51 is as the dusting cover of filtration applications.
The special characteristic of holder basket 5 is that a residue opening 6 is arranged shown in Fig. 2 a, and this opening reaches in the outlet 7 in the filter housing.The holder basket is routinely in its open top, and this opening label is 8.
The lid 4 of filter is provided with the pipeline 9 that is used as pay standard filtrate specially.One infiltration outlet 10 is loaded on the bottom of housing 3.
Particularly just can see that with reference to Fig. 1 and the description below Fig. 4 using above-mentioned filter just can realize the cross-flow pre-coating method.
In case when the course of work is initial, finished preliminary precoating, just with pump 11 liquid supplied with filter 1 and will add in the liquid stream through pump 12 through the filter aid or the stabilizing agent of metering.Will separate with beverage as stabilizing agent or situation with the solids of good one-tenth pie and other fluid separation applications under, if necessary, then can save precoating and add filter aid subsequently.In this case, closing element 13 and 14 is opened, and all other closing elements of the filter 1 that arrives are being closed.When this filter outgased fully, then element 13 was closed and additional the opening with the beverage or the filtrate that allow to have filter aid of closing element 15 are circulated through pipeline 16.
The latter's the conformation of returning the filtrate that comprises filter aid is depicted among Fig. 4.By this way, form filter cake in the inside of holder basket 5, as shown in Figure 2.When filtrate is returned, form the filter cake that has embedding filter aid.When the permeate flow of the outlet of the infiltration from filter 1 10 outflows is Clear ﹠ Transparent, just think that the thickness of filter cake is enough.Close closing element 15 then, and filter 1 keep stand-by in the time need regenerating because of the filter 2 of working always till.
Referring to Fig. 5, the operation of actual filtration step is by opening closing element 17, and its allows penetrating fluid to lead to filling station (not marking reference number) from infiltration outlet 10.The closing element of linking on the pipeline 9 of filter lid 14 also is in open mode in this stage.Not only take from the penetrating fluid of storage container of corresponding not label and the filter aid pipeline 9 of constantly flowing through, and also be like this from the tributary of holder basket inside.Basically with the y direction operation of holder basket, it is marked with label 17 in Fig. 2 in this tributary.This tributary turns back to pump 11 by residue mouth 6 discharging and the closing element 18 by being contained in residue mouth 6 with through return line 16.This tributary 17 in the holder basket keeps a passage (not shown) mouth, filter is remained valid in holder basket and precoating filter cake operation, so that width of cloth jet 19 also penetrates filter medium, in this case, filter cake keeps clean and can avoid too early obstruction owing to its surface.
When permeate flow drops to preset value when following, just begin starting through above-mentioned backflow, and enter " cross-flow mode of operation " by closing element 18.Before this, closing element 18 at first keeps closed condition, and filter cake still continues to form by means of filter aid in filter process; This has such effect, and permeate flow descends when promptly increasing along with the pressure reduction on the filter.
The i.e. concentrated top layer that rinses filter cake in Xun Huan tributary changed over to after circulation and filter kept operation at the penetrating fluid of discharging, reached this situation at last, although no longer can produce sufficient osmotic flow.At this moment, by closing closing element 14,17 and 18 and open the closing element 20 and 22 of filter 2, filter and switch to stand-by filter 2, thereby make filtrate can continue to send to the filling station from filter 1.
Renewable filter aid is that as the distinct advantages of " Polyclar Plus " the last filter cake that forms can be regenerated in filter 1.For this purpose, as shown in Figure 6, alkali lye is sent into the inlet line 9 of filter 1 through closing element 23,24 and 14 with pump 22.If contaminated, then alkali lye can be through closing element 17 and 25 dischargings, if or not comtaminated, then it can turn back to hold-up vessel and can be utilized again through closing element 26.
Be to remove step subsequently, see Fig. 7, during entire job, often carry out this removing step as required.For this purpose, water enters filter 1 through pump 27 and closing element 28 to 30 by pipeline 9, and can emit by the closing element 17 in the infiltration outlet 10 with through closing element 25.
At last, as the final step in this method, Fig. 8 has shown the cleaning again through the filter cake after the regeneration.When this step occurs in filter cake by rinsing fully up hill and dale.In order to clean again, except the closing element 31 of residue (this residue can enter the filter aid container) mouth 7, all the other closing elements that connect filter 1 are all closed.Closing element 32 and 33 also is closed, and these two closing elements are on the pipeline that is contained in by pump 27 feed-water.Water is to be used for cleaning the residue that turns back to the filter cake in the filter aid container, so that re-use.
Fig. 3 has described the modification of filter, and wherein, pressure vessel 34 comprises three parallel holder basket structures 35 to 37.Can form by its Mnltilayered structures as for each holder basket structure.The opening 38-40 of holder in the basket be contained in a pallet 41 above.Pressure vessel chamber and a connection piece 42 on the pallet 41 link, and the inlet line 9 among this and Fig. 2 is similar.Residue opening 43,44 and 45 inserts in the carriage 46, its following residue chamber part 47 that then forms.This chamber 47 has a residue mouth 48.One infiltration outlet 49 is communicated with space between carriage 41 and 46.Though this filter shown in Fig. 3 is actually parallel mutually at three holder baskets or filter element 35,36 and 37, its operation is identical with mode shown in Figure 2 basically.
Claims (11)
1, a kind of cross-flow pre-coating method, the filtrate that the filtrate that wherein will contain pre-filter pulp is added with optional filter aid is sent into the described filter chamber of at least one the approximate circle tubular that is configured in the pressure vessel from first end (8) of filter chamber, the flow through filter medium of described filter chamber appointment, form a filter cake, as penetrating fluid discharge,
It is characterized in that,
The filtrate that to contain filter aid at first send the filter chamber that constitutes by filter basket (5) to and through described filter medium infiltration till forming filter cake, and a tributary is from the residue opening of approximate its axle (17) on the other end that passes this filter chamber opposite filter chamber to described first end in succession, and described first opening (8) of this filter chamber is discharged, turns back to from the outside of this filter chamber then in this tributary from this residue opening.
2, cross-flow pre-coating method as claimed in claim 1, it is characterized in that,, flow into described filter basket (5) from the outside and discharge with the residue that washes out by one in filter infiltration opening (10) and sent into described filter continuously at liquid under pressure by residue opening (6).
3, cross-flow pre-coating method as claimed in claim 1 or 2, it is characterized in that, in filter chamber, set up filter cake consecutive steps, utilize axial tributary in the filter chamber to stablize filter cake and wash step again by what infiltration opening (10) inserted the liquid into filter, they exported the function of pressure reduction between (10) as infiltration capacity and/or filtrate inlet (9) and infiltration and controlled.
4, as the described cross-flow pre-coating method of arbitrary claim of claim 1 to 3, it is characterized in that, its each comprise two filters (1 of the filter chamber at least one balancing gate pit, 2) blocked operation in the following manner, promptly under each situation, one of two filters (1,2) are set up filter cake or ripple liquid are filtered, and another in two filters then cleans again or be in dormant state at the same time.
5, the described cross-flow pre-coating method of arbitrary as described above claim is characterized in that, the polyvinylpyrrolidone that will combine with cellulose is as filter aid.
6, a kind of realization as the employed filter basket of the described cross-flow pre-coating method of arbitrary claim of claim 1 to 5, it is approximately cylindrical shape and opening at its top,
It is characterized in that,
It has the residue opening in the bottom.
7, filter basket as claimed in claim 6 is characterized in that, it comprises three concentric layers (50,51,52).
8, filter basket as claimed in claim 7 is characterized in that, it has three layers (50,51,52), and its intermediate layer (51) have thinner sieve aperture than innermost layer (50).
9, filter basket as claimed in claim 8 is characterized in that, the sieve mesh width of intermediate layer (51) is the 50-60 micron.
10, a kind of pre-coating device of cross-flow with at least one realization as the filter basket of the described cross-flow pre-coating method of arbitrary claim of claim 1 to 5, its uses the described filter basket of arbitrary claim as claim 6 to 9,
It is characterized in that,
Pressure vessel (3,4) has filtrate that residue outlet (7) and shut off valve (15) be configured in residue outlet and pressure vessel and enters the mouth in the pipeline between (9).
11, the pre-coating device of cross-flow as claimed in claim 10 is characterized in that, a plurality of filter elements (35,36,37) be configured in the pressure vessel (34) their residue opening (43,44,45) insert in the shared residue chamber, this residue chamber has residue outlet (48).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4237714.5 | 1992-11-09 | ||
| DE4237714A DE4237714C2 (en) | 1992-11-09 | 1992-11-09 | Crossflow precoat filtration process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088469A true CN1088469A (en) | 1994-06-29 |
Family
ID=6472391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93114273A Pending CN1088469A (en) | 1992-11-09 | 1993-11-09 | The device of cross-flow pre-coating method and this method of realization |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1088469A (en) |
| AU (1) | AU5328894A (en) |
| DE (1) | DE4237714C2 (en) |
| WO (1) | WO1994011087A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780349A (en) * | 2010-02-11 | 2010-07-21 | 曹达文 | Multi-pipe external-compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device |
| CN102895820A (en) * | 2011-07-27 | 2013-01-30 | 广东粤海控股有限公司 | Dynamic membrane filter for water treatment |
| CN103608078A (en) * | 2011-07-28 | 2014-02-26 | 实瑞过滤设备股份有限公司 | Device for separating solid particles from liquids, and use thereof |
| CN109260822A (en) * | 2018-11-02 | 2019-01-25 | 石家庄通过滤器设备制造有限公司 | A kind of anti-cleaning filter |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19725295A1 (en) * | 1997-06-14 | 1998-12-17 | Knoll Maschinenbau Gmbh | Cleaning facility for machine-tool coolant |
| UA99718C2 (en) * | 2006-12-07 | 2012-09-25 | Инбев С.А. | Use of primary liquid filtration/stabilization installation |
| EP1949948B1 (en) * | 2007-01-29 | 2011-01-26 | Johannes Kiefer | Method and device for continuous processing of fluids |
| DE102011014184A1 (en) | 2011-03-16 | 2012-09-20 | Khs Gmbh | Apparatus and method for stabilizing a liquid, in particular beer |
| DE102011112291B4 (en) * | 2011-09-05 | 2015-07-09 | Sartorius Stedim Biotech Gmbh | Apparatus and method for filtering a liquid sample |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313830A (en) * | 1980-05-23 | 1982-02-02 | Hydronautics, Incorporated | Method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil |
| US4547296A (en) * | 1983-09-15 | 1985-10-15 | Croll-Reynolds Engineering Co., Inc. | Heel recovery filtration process and apparatus |
| ZA87553B (en) * | 1986-01-31 | 1988-03-30 | Water Res Commission | Dewatering slurries |
| DE3617519A1 (en) * | 1986-05-24 | 1987-11-26 | Seitz Enzinger Noll Masch | TWO- OR MULTI-STAGE METHOD FOR REMOVING IMPURITIES FROM STILL OR CARBONIC LIQUIDS, IN PARTICULAR DRINKS, AND APPARATUS FOR CARRYING OUT THIS |
| HU202768B (en) * | 1986-06-25 | 1991-04-29 | Debreceni Mezoegazdasagi | Filtering device with continuous flushing and pressure-regulating valve particularly for agricultural plant-protecting machines |
| JPS63237780A (en) * | 1987-03-27 | 1988-10-04 | Takeshi Kobayashi | Filtration of bacillus subtilis |
| DD276239A1 (en) * | 1988-10-17 | 1990-02-21 | Wtoez Brau & Malzind | METHOD FOR PRODUCT-RELATED AUTOMATIC DOSAGE OF FILTER TOOL AMOUNT AND COMPOSITION IN BRAKE FILTRATION |
| DE4110252C1 (en) * | 1990-06-02 | 1992-02-27 | Schenk-Filterbau Gmbh, 7076 Waldstetten, De | |
| US5149433A (en) * | 1991-08-05 | 1992-09-22 | Desalination Systems, Inc. | Method and apparatus for supply of decontaminated fuel to diesel engine |
-
1992
- 1992-11-09 DE DE4237714A patent/DE4237714C2/en not_active Expired - Fee Related
-
1993
- 1993-10-12 WO PCT/US1993/009749 patent/WO1994011087A1/en active Application Filing
- 1993-10-12 AU AU53288/94A patent/AU5328894A/en not_active Abandoned
- 1993-11-09 CN CN93114273A patent/CN1088469A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780349A (en) * | 2010-02-11 | 2010-07-21 | 曹达文 | Multi-pipe external-compression type mechanical circulation forced cross flow solid-liquid separation dynamic membrane system and device |
| CN102895820A (en) * | 2011-07-27 | 2013-01-30 | 广东粤海控股有限公司 | Dynamic membrane filter for water treatment |
| CN103608078A (en) * | 2011-07-28 | 2014-02-26 | 实瑞过滤设备股份有限公司 | Device for separating solid particles from liquids, and use thereof |
| CN103608078B (en) * | 2011-07-28 | 2015-12-02 | 实瑞过滤设备股份有限公司 | The device of separating solids particulate and application thereof from liquid |
| CN109260822A (en) * | 2018-11-02 | 2019-01-25 | 石家庄通过滤器设备制造有限公司 | A kind of anti-cleaning filter |
| CN109260822B (en) * | 2018-11-02 | 2021-05-07 | 石家庄一通过滤器设备制造有限公司 | Back-cleaning filter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4237714C2 (en) | 1996-02-29 |
| WO1994011087A1 (en) | 1994-05-26 |
| AU5328894A (en) | 1994-06-08 |
| DE4237714A1 (en) | 1994-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |