CN1325957A - Inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer - Google Patents
Inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer Download PDFInfo
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- CN1325957A CN1325957A CN 00114590 CN00114590A CN1325957A CN 1325957 A CN1325957 A CN 1325957A CN 00114590 CN00114590 CN 00114590 CN 00114590 A CN00114590 A CN 00114590A CN 1325957 A CN1325957 A CN 1325957A
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Abstract
A low-temp antibacterial microfilter apparatus for beer is composed of filter unit, back flushing unit, cleaning unit and control unit, and features that the microfilter membrane used in the filter unit is an inorganic ceramic membrane which has high antibacterial effect and retains the fragrance and useful substances of beer; and a two-position three-way valve used in back flushing unit can timely back-flush the filter membrane to prevent it form being blocked.
Description
The present invention relates to a kind of liquid filtering technology, relate in particular to a kind of inorganic ceramic film liquid filtering sterilization technique.
As a kind of liquid filtering technology, be widely used in the filtration sterilization of beverages such as tap water, mineral water, also have the filtration of heart K mother liquor, and rice spills, pure draught beer spills, fresh fruit clarification of juice and filtration sterilization.
Wherein the beer filter at low temperature degerming of spilling is particularly important.
The development of the brewing industry of China rapidly, every year on average with the speed increment of 6-8%.1998 annual production have reached 1986.26 tons, and are the continuation growth momentum.Expect 2003, China's beer ultimate production will reach 2,500 ten thousand tons, surpass the U.S., become the first in the world beer production big country.
From making method, bottled beer is aseptic in order to reach the warranty period, and the most frequently used method is the high temperature pasteurization, and this traditional technology has changed the local flavor of beer to a great extent, destroyed some nutritions in the beer, made bottled beer in fact become hot beer.
From international beer consumption structure, spill with cold conditions membrane filtration and the bottled beer of pure life that is configured to production such as sterile filling system,, maintenance natural fragrance good with its mouthfeel and advantage such as be easy to deposit replaced hot beer basically.The proportion that accounts for beer consumption as draft beers such as the U.S., France has reached more than 80%, and Japan is more up to about 99%.
Now Chang Yong beer filtration sterilization technique is:
" fold cartridge " so that materials such as polypropylene, polysulfones, nylon are made than widespread usage, is characterized in that filtering traffic is bigger, and because of folding surface-area is big, and filtering accuracy is higher; But the life-span is short, the long filter core of common diameter phi a 60 * 762mm, 160 tons of beer of specified filtration, and in fact connect 100 tons less than, and the import filter core costs an arm and a leg, and has increased running cost; Non-refractory is yielding with 85 ℃ thermokalite water cleaning in addition, and therefore, normal configuration one opens one fully in the design, has increased investment.
A kind of good beer filtration sterilization technique, should be to various beer under safety and economic prerequisite, have long period and filter stable ability, that is:
1. it must have a kind of strainer that can remove unwanted bacteria from beer;
2. it should be economical, filters the low and short time of payment of running expense exactly;
3. filtering must be gentle, should not remove benefit materials from beer, otherwise the fragrance of beer and nutrition will incur loss.
This just requires " pore size distribution " that inorganic film tube should have a narrow range (PSD), and promptly PSD must remove unwanted bacteria, and allows other useful material pass through.Because the unwanted bacteria size is all greater than 0.5 μ m in the beer, therefore, the film of PSD with 0.45 μ m is comparatively desirable.
Purpose of the present invention just is to overcome the problem and shortage that exists in the existing beer filtration sterilization technique, and provides a kind of strainability good, long service life, the low and good inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer of resistance toheat of running cost.
The object of the present invention is achieved like this:
1. adopt inorganic ceramic film as filter core, and the practical membrane module of design.Inorganic ceramic film selects for use cylindrical honeycomb to do supporter, prepares inorganic ceramic film with sintering process.The mould material alumina powder is as long as accurately sieve the film that just can obtain needed different average pore diameters.The inorganic ceramic film mean pore size that the filtered pure unpasteurized beer is used is 0.45 μ m.Every film useful area is 0.2m
2, transit dose is 400L/m
2According to the filtration yield size, and the quantity of definite film.The two ends of film are fixed on (on the flange) on the card with sealing-ring, and shell is the stainless steel cylinder, the component film assembly.The functional layer of film claims inner pressed usually at the inwall of cellular porous body, by topping-up pump under pressure, makes the solute less than mean pore size see through (seeing through liquid), and is trapped greater than the material of mean pore size.Because the mean pore size of beer filtration is 0.45 μ m, this just holds back yeast and other harmful bacterium, and useful composition sees through smoothly in the beer.
2. stop up for preventing, structurally be designed to cross flow filter, make wine liquid at film chamber internal recycle by topping-up pump.
3. design timing pulse formula recoil Xian, be equipped with air water simultaneously and mix recoil, thereby guarantee that film has long filtration cycle.
Compared with prior art, the present invention has the following advantages:
1, because microfiltration membrane of the present invention is an inorganic ceramic film, and its aperture is 0.45 μ m, and used mould material is an aluminum oxide, its major advantage has:
1. high chemical stability, it means and can at high temperature regenerate with strong acid and liquid caustic.
2. high mechanical strength can bear the high pressure back flushing.
3. high thermal stability, it makes the high-temperature vapour sterilization become possibility.
4. narrow PSD, these inorganic ceramic films prepare with the filling of aluminum oxide powder, subsequently sintering.As long as the alumina powder particle size is accurate, just be expected to obtain corresponding narrow PSD.
5. long service life it has been generally acknowledged that can surpass 8-10 work-ing life.
2, owing to be the back flushing of timing pulse formula, effectively prevent the obstruction of membrane module, obtained stable big flow.
Describe in detail below in conjunction with drawings and Examples:
Fig. 1 is a composition frame chart of the present invention.
Fig. 2 is the membrane module sectional view.
Fig. 3 is present embodiment structural representation (main looking)
Fig. 4 is a present embodiment structural representation (overlooking).Wherein:
A---filtration fraction; B---recoil part; C---wash section; D---control section;
The A part:
1---the feed liquid tundish, because of the present invention is that " cross-flow " filters, therefore be the intercycle jar again;
2---main pipe line;
QF1---Pneumatic butterfly valve is closed in limited time automatically when feed liquid tundish 1 liquid level is lower than down;
3---topping-up pump, pump pressure=0.6pn, flow velocity V=3-5m/s;
4---the high-low pressure protection switch, make topping-up pump 3 work by the pressure that sets in advance, otherwise shut down, the protective membrane assembly is injury-free;
5---collecting pipe;
6---membrane module,
SF1, SF2, SF3, SF4---Hand-operated butterfly valve, wherein SF1, SF2 do membrane module 6 integrity test usefulness, carry out before each shift begins;
LJ1---electric flow meter;
7---the reflux side collecting pipe;
8---plate-type heat exchanger;
9---return line;
10---venting hole;
11---the liquid level automatic controller;
12---see through the liquid pipeline;
QF2---Pneumatic butterfly valve;
LJ2---electric flow meter;
SF5---Hand-operated butterfly valve;
13---equipment chassis;
14---expansion screw.
The B part:
21---the recoil pipeline;
SF6---Hand-operated butterfly valve;
22---two position three-way valve, give first setting by controller 41, on time conversion;
23---cylinder, stroke is adjustable, adjustable in pressure, cylinder holds size and can guarantee to finish pulsatile once and recoil required through liquid;
QF3---Pneumatic butterfly valve.
The C part:
31---clear Xian Guandao;
32---sewage draining exit;
SF7---Hand-operated butterfly valve;
SF8---Hand-operated butterfly valve;
The D part:
41---the PLC programmable logic controller;
A, b, c, e, f, g, h, i, j..---interface, the j point of the i of the h of the g of the f of the e of the d of the c of the b of a of automatic controller 11, Pneumatic butterfly valve QF1, topping-up pump 3, high-low pressure protection switch 4, electric flow meter LJ1, Pneumatic butterfly valve QF2, electric flow meter LJ2, two position three-way valve 22, cylinder 23, Pneumatic butterfly valve QF3 is connected with liquid respectively.
51---former wine, 52---line of beer, 53---aseptic compressed air, 54---CIP just washes, and 55---CIP returns and washes, and 56---CIP reclaims (just washing), and 57---CIP reclaims (return and wash), and 58---CO
2Inlet, 59---the refrigerant inlet, 60---refrigerant exit.
1, as shown in Figure 1, the present invention is made up of filtration fraction A, recoil part B, wash section C and control section D.
1. filtration fraction A is made up of following parts, and connects successively: feed liquid tundish 1 → main pipe line 2 → Pneumatic butterfly valve QF1 → topping-up pump 3 → high-low pressure protection switch 4 → collecting pipe 5 → Hand-operated butterfly valve SF1 → membrane module 6 → Hand-operated butterfly valve SF2 → reflux side collecting pipe 7 → Hand-operated butterfly valve SF3 → electric flow meter LJ1 → Hand-operated butterfly valve SF4 → plate-type heat exchanger 8 → return line 9 → feed liquid tundish 1.Membrane module 6 → through liquid pipeline 12 → Pneumatic butterfly valve QF2 → electric flow meter LJ2 → Hand-operated butterfly valve SF5.There is venting hole 10 on feed liquid tundish 1 top, in liquid level automatic controller 11 is installed.
2. the part that recoils B is made up of following parts, and its annexation is: the top of recoil pipeline 21 is connected with the mouth of pipe of aseptic compressed air 53, tail end be connected through liquid pipeline 12; On recoil pipeline 21, Pneumatic butterfly valve QF6, two position three-way valve 22, cylinder 23, Pneumatic butterfly valve QF3 are installed successively.
3. wash section C inserts membrane module 6 by pipe blow-through 31, and blow-off pipe 32 is installed in the bottom of feed liquid tundish 1.Hand-operated butterfly valve SF7 is arranged on the pipe blow-through 31, Hand-operated butterfly valve SF8 is arranged on the blow-off pipe 32.
4. control section C is made up of PLC programmable logic controller 41 and interface a, b, c, d, e, f, g, h, i, j.
2, membrane module 6 is core filtration fractions of this equipment, and as shown in Figure 2, each membrane module is made up of one group of inorganic ceramic membrane filtration stamen 6.1 and sealing-ring 6.2, stainless steel card 6.3 and stainless steel cylinder 6.4.Wherein every membrane filtration stamen 6.1 is φ 30mm. length 1020mm, and 19 holes are cellular porous body; Many membrane filtration stamens 6.1 are one group again, also are cellular distribution; Two ends are fixed on the stainless steel card 6.3 with rubber seal 6.2, and card 6.3 is installed on the stainless steel cylinder 6.4.This membrane module 6 is equipped with 7 membrane filtration stamens 6.1; During practical application, membrane module 6 can be selected the membrane filtration stamen 6.1 and the various combination of different radicals according to the filtration yield needs.
3, filtration fraction B often reduces because of obstruction makes flow in operational process gradually, needs recoil.This recoil portion C is connected with timing commutation pulse signal h interface in the controller 41 by the contact h of two position three-way valve 22, thereby obtains the fabulous periodic pulsed back flushing of a kind of developing result, guarantees stable big flow.
4, the embodiment of the invention as shown in Figure 3, Figure 4, the membrane module 6 of filtration fraction A has 4 groups of (6.a6.b, 6.c, 6.d), be up and down and arrange, its left end is connected with collecting pipe 5 by Hand-operated butterfly valve SF1 (SF1a, SF1b, SF1c, SF1d) respectively, and its right-hand member is connected with reflux side collecting pipe 7 by Hand-operated butterfly valve SF2 (SF2a, SF2b, SF2c, SF2d) respectively, all does the resistance to air loss experiment.According to production-scale different sizes, membrane module 6 can suitably increase and reduce.
Working process of the present invention is:
Entering former wine 51 of the present invention must be that its major requirement has through the filtering pure mellow wine of silicon dried soil:
1. total plate count≤100/ml (it is qualified that anerobe etc. should be handled in former process).
2. yeast＜5/ml
3. turbidity＜0.3EBC-TU
4. the B-dextran is low more good more
5. iodine number:＜0.25
The former wine 51 that meets the These parameters requirement is delivered to feed liquid tundish 1; when the pressure of liquid level in filtration state and main pipe line 2 in the set(ting)value of high-low pressure protection switch 4; and from line of beer 52 want the wine signal time, topping-up pump 3 starts automatically, this moment all valves in running order.
Want filtering former wine, enter membrane module 6, under pressure, see through the function face of film in the former wine 51 less than the material (solution) of 0.45 μ m, be pooled to through liquid pipeline 12, to line of beer 52 by pipeline flow-direction that sets in advance and reasonable pressure state; And stopped greater than the goods and materials (yeast impurity part colloidalmaterial) of 0.45 μ m in the former wine or with the former wine 51 feed liquid tundish 1 that reflux again, constantly circulating filtration will obtain qualified aseptic beer for this reason.
And the former wine concentration in the feed liquid tundish 1, it is increasing As time goes on to become, and when reaching the concentration maximum set value, stops to filter as " beer tail " and handles.
Film inevitably can stop up in filtration procedure, and in order to guarantee that the constant flow is arranged in the working hour, the present invention is provided with special recoil portion C.The recoil of timing pulse formula is to realize recoil automatically by giving time and the pressure set earlier in filtration procedure.The control of the timing commutation pulse signal of the two position three-way valve 22 controlled devices 41 on the recoil pipeline 21.Air water mixes recoil, and gas is aseptic compressed air 53, and water is sterilized water.Owing to be that air water mixes recoil, more thoroughly removed the particulate in the membrane module deep layer pore and make it recover big flux preferably
When each shift finishes, cleans more completely by CIP, comprise that CIP is just washing 54, CIP returns and washes 55, CIP recovery (return and wash) 57, CIP reclaim (just washing) 58.Waste liquid after thoroughly cleaning is discharged from sewage draining exit 32.The cleanliness factor that cleans is shown automatically by transmitter, instrument.
Replace the technology that tradition falls behind because the invention belongs to employs new technology, therefore, wide application prospect is arranged in the production in other beverage at draft beer.
Claims (3)
1, a kind of inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer is made up of filtration fraction A, recoil part B, wash section C and control section D, it is characterized in that:
1. filtration fraction A is made up of following parts, and connect feed liquid tundish (1), main pipe line (2), Pneumatic butterfly valve (QF1), topping-up pump (3), high-low pressure protection switch (4), collecting pipe (5), Hand-operated butterfly valve (SF1), membrane module (6), Hand-operated butterfly valve (SF2), reflux side collecting pipe (7), Hand-operated butterfly valve (SF3), electric flow meter (LJ1), Hand-operated butterfly valve (SF4), plate-type heat exchanger (8), return line (9), feed liquid tundish (1) successively; Membrane module (6), see through liquid pipeline (12), Pneumatic butterfly valve (QF2), electric flow meter (LJ2), Hand-operated butterfly valve (SF5); There is venting hole 10 on feed liquid tundish 1 top, in liquid level automatic controller 11 is installed;
2. the part that recoils B is made up of following parts, and its annexation is: the top of recoil pipeline (21) is connected with the mouth of pipe of aseptic compressed air (53), tail end be connected through liquid pipeline (12); Hand-operated butterfly valve (SF6), two-bit triplet pipe (22), cylinder (23), Pneumatic butterfly valve (QF3) are installed on recoil pipeline (21) successively, see through liquid pipeline (12);
3. wash section C inserts membrane module (6) by pipe blow-through (31), and blow-off pipe (32) is installed in the bottom of feed liquid tundish 1; Hand-operated butterfly valve (SF7) is arranged on the pipe blow-through (31), Hand-operated butterfly valve (SF8) is arranged on the blow-off pipe 32;
4. control section D is made up of PLC programmable logic controller (41) and interface (a, b, c, d, e, f, g, h, i, j), is connected with (a), (b), (c), (d), (e), (f), (g), (h), (i) of cylinder (23) of two position three-way valve (22) of electric flow meter (LJ2) of Pneumatic butterfly valve (QF2) of electric flow meter (LJ1) of high-low pressure protection switch (4) of topping-up pump (3) of Pneumatic butterfly valve (QF1) of liquid level automatic controller (11), (j) point of Pneumatic butterfly valve (QF3) respectively.
2, by the automatic low temperature degerming of the described a kind of inorganic ceramic film of claim 1 microfiltration equipment, it is characterized in that membrane module (6) is made up of inorganic ceramic membrane cartridge (6.1), sealing-ring (6.2), card (6.3) and cylinder (6.4), inorganic ceramic membrane cartridge (6.1) is made by alumina material, be cellular, two ends are fixed on the card (6.3) with sealing-ring (6.2), are installed on the cylinder (6.4) again.
3,, it is characterized in that the contact (h) of two position three-way valve (22) is connected with timing commutation pulse signal (h) interface in the controller (41) by the automatic low temperature degerming of the described a kind of inorganic ceramic film of claim 1 microfiltration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114590 CN1325957A (en) | 2000-05-25 | 2000-05-25 | Inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114590 CN1325957A (en) | 2000-05-25 | 2000-05-25 | Inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer |
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| Publication Number | Publication Date |
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| CN1325957A true CN1325957A (en) | 2001-12-12 |
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| CN 00114590 Pending CN1325957A (en) | 2000-05-25 | 2000-05-25 | Inorganic ceramic membrane microfilter for automatic low-temp bacteria removal of beer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322287C (en) * | 2004-11-29 | 2007-06-20 | 王继柱 | Domestic sewage extracting and flushing process in sewage hot pump thermal supplying air conditioner system |
| CN100420509C (en) * | 2005-09-16 | 2008-09-24 | 中国石油化工股份有限公司 | Membrane cleaning device and method in membrane separating technology and its application |
| CN102899234A (en) * | 2012-10-18 | 2013-01-30 | 江苏久吾高科技股份有限公司 | Membrane-process beer sterilization and yeast recovery method |
| CN117417006A (en) * | 2023-11-23 | 2024-01-19 | 青岛百发海水淡化有限公司 | Seawater desalination pretreatment process system in low-temperature state and operation method |
-
2000
- 2000-05-25 CN CN 00114590 patent/CN1325957A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322287C (en) * | 2004-11-29 | 2007-06-20 | 王继柱 | Domestic sewage extracting and flushing process in sewage hot pump thermal supplying air conditioner system |
| CN100420509C (en) * | 2005-09-16 | 2008-09-24 | 中国石油化工股份有限公司 | Membrane cleaning device and method in membrane separating technology and its application |
| CN102899234A (en) * | 2012-10-18 | 2013-01-30 | 江苏久吾高科技股份有限公司 | Membrane-process beer sterilization and yeast recovery method |
| CN102899234B (en) * | 2012-10-18 | 2014-06-25 | 江苏久吾高科技股份有限公司 | Membrane-process beer sterilization and yeast recovery method |
| CN117417006A (en) * | 2023-11-23 | 2024-01-19 | 青岛百发海水淡化有限公司 | Seawater desalination pretreatment process system in low-temperature state and operation method |
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