CN102021107A - Total-reflux white spirit freezing and filtering device and method thereof - Google Patents
Total-reflux white spirit freezing and filtering device and method thereof Download PDFInfo
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Abstract
The invention discloses a total-reflux white spirit freezing and filtering device and a method thereof. The device is characterized in that a primary exchanger (1), a secondary exchanger (2), a primary filter (3) and a secondary filter (4) are interconnected in series through relevant pipelines, pumps and valves, the secondary exchanger (2) is connected in series with a cooling tower (5) to form the freezing and filtering device; the method comprises the steps that: white spirit is frozen by the primary exchanger and the secondary exchanger successively, the white spirit at normal temperature reaches 2 to 0 DEG C by the primary exchanger and reaches the temperature below -10 DEG C by the secondary exchanger; the cooled white spirit is filtered by the primary filter or the secondary filter to be clarified; diatomite adsorbing flocculent ester substances is recovered in a diatomite recovery tank, and grease is recovered in an oil/water separating tank. The device of the invention is reasonable in structure and simple in technological flow, solves white turbidity, gloss loss and other problems of white spirit in the process of white spirit production, can recover and reutilize diatomite and flocculent high fatty acid ethyl ester thereof, and has high comprehensive economical benefit.
Description
Technical field
The invention belongs to the wine liquid treatment technology of liquor, be specifically related to a kind of total reflux liquor freezing and filtering device and method.
Background technology
As everyone knows, the reduction temperature can present phenomenons such as white opacity, loss of gloss after the wine liquid of liquor added water, after deliberation, this phenomenon is that the higher fatty acid ethyl esters dissolving reduction in the liquor causes, at present, adopt charcoal absorption to remove higher fatty acid ethyl esters to wine liquid, obtain clarifying wine liquid through diatomite filtration; Existing processing mode not only energy consumption is big, forms a large amount of waste gac, diatomite, and gac, diatomite cause the wasting of resources, contaminate environment.
Summary of the invention
The objective of the invention is to: a kind of total reflux liquor freezing and filtering device and method is provided, the wine liquid of liquor is handled through this device and method, in follow-up cryopreservation process white opacity can not appear, all the time guarantee transparency clearly, efficient recovery diatomite, grease, recycle diatomite is realized the total reflux zero release, economize on resources, reduce production costs.
Technical solution of the present invention is: the freezing and filtering device comprises one-level interchanger, secondary interchanger, one-level filter, secondary filter and cooling tower, one-level interchanger, secondary interchanger, one-level filter and secondary filter are connected successively through corresponding pipeline, pump, valve, secondary interchanger series connection cooling tower constitutes the freezing and filtering device; Wherein, connect Y type deep bed filter at one-level interchanger front end; Wherein, between one-level filter and secondary filter, surge tank is installed; Wherein, agitation vat is communicated with one-level filter and secondary filter through pipeline respectively; Wherein, behind the secondary filter, connect millipore filter; It is characterized in that: the one-level filter is connected diatomite grease recycling unit with secondary filter rear end, described diatomite grease recycling unit comprises the diatomite withdrawing can, deep bed filter, gun barrel, air vessel, alcohol container and pure water pot, one-level filter and secondary filter rear end are through corresponding pipeline, pump, valve connects the diatomite withdrawing can, the diatomite withdrawing can is communicated with agitation vat and deep bed filter respectively, deep bed filter is communicated with gun barrel, air vessel is communicated with the one-level filter respectively through pipeline, secondary filter and diatomite withdrawing can, alcohol container is communicated with the diatomite withdrawing can through pipeline, and pure water pot is communicated with the one-level filter respectively through pipeline, secondary filter and diatomite withdrawing can.
Total reflux liquor freezing and filtering method is: at first, wine liquid is successively freezed by one-level interchanger and secondary interchanger, the wine liquid of normal temperature reaches 2-0 ℃ through the one-level interchanger, reaches below-10 ℃ through the secondary interchanger; Secondly, the wine liquid after the cooling filters through one-level filter or secondary filter, makes wine liquid reach clarification; It is characterized in that: last, to adsorption-flocculation the diatomite of Ester clean with edible ethanol at the diatomite withdrawing can and carry out diatomite and reclaim, reclaim grease at gun barrel.
The concrete steps of total reflux liquor freezing and filtering method are as follows: (1) precooling: the wine liquid of normal temperature passes through valve, charging variable frequency pump to Y type deep bed filter, the one-level interchanger is sent in supercharging hold back the granule foreign in the wine liquid in Y type deep bed filter after, carrying out the cold displacement with the lonely wine liquid below-10 ℃ of secondary filter outlet, is 2-0 ℃ through one-level exchanger outlet wine liquid temp; (2) speed is cold:
2-0 ℃ wine liquid flows into the secondary interchanger and cools off once more, and cooling back wine liquid temp is below-10 ℃, waits to be filtered; (3) one-level is filtered: squeeze into the precoating of one-level filter after diatomite stirs in agitation vat, wine liquid through overrunning cold enters the one-level filter by valve, pump, the internal recycle that carries out 10-15min in the one-level filter carries out normal filtration again, and it is to be filtered that the wine liquid after the filtration enters surge tank; (4) cascade filtration: squeeze into the precoating of secondary filter in agitation vat after diatomite stirs, wine liquid in the surge tank enters the internal recycle that carries out 10-15min in the secondary filter and carries out normal filtration again, the millipore filter in secondary filter exit is held back micro-diatomite dust and fine impurities, obtains the liquor of clear; It is characterized in that: (5) diatomite reclaims: the one-level filter, in the secondary filter adsorption-flocculation diatomite of higher fatty acid ethyl esters extrude remaining wine through oil-free compressed air, be mixed into slurry with pure water and diatomite, open the one-level filter, secondary filter bottom valve, slurry reclaims pump by diatomite and pumps into the diatomite withdrawing can, feed oil-free compressed air and fully stirring in the diatomite withdrawing can, leave standstill, the upper strata oil-water mixture is squeezed into gun barrel, remove remaining water in lower floor's diatomite with oil-free compressed air again, the 70%vol edible ethanol is squeezed in the diatomite withdrawing can diatomite is carried out cleaning and regeneration, and the diatomite of regenerating returns pump by diatomite and pumps into agitation vat and recycle; (6) grease reclaims: the upper strata oil-water mixture in the diatomite withdrawing can after precipitation leaves standstill pumps into gun barrel again and carries out the oily water separation processing by the residual diatomite particle of deep bed filter filtering, reclaims grease wherein.
Freezing and filtering apparatus structure of the present invention is reasonable, the operational path of freezing and filtering method is simple, wine liquid presents problems such as white opacity, loss of gloss in the solution liquor production process, the higher fatty acid ethyl esters of recycle and reuse filtration medium diatomite and flocculation thereof, realize the total reflux zero release, the overall economic efficiency height.
Description of drawings
Fig. 1 is a freezing and filtering apparatus structure synoptic diagram of the present invention.
Among the figure: 1 one-level interchanger, 2 secondary interchangers, 3 one-level filters, 4 secondary filters, 5 cooling towers, 6 Y type deep bed filter, 7 millipore filters, 8 surge tanks, 9 agitation vats, 10 diatomite withdrawing cans, 11 deep bed filter, 12 gun barrels, 13 air vessels, 14 alcohol containers, 15 pure water pots.
Embodiment
Further specify apparatus and method of the present invention below in conjunction with drawings and Examples, these embodiment can not be interpreted as it is restriction to technical scheme.
As shown in Figure 1, the freezing and filtering device comprises one-level interchanger 1, secondary interchanger 2, one-level filter 3, secondary filter 4 and cooling tower 5, one-level interchanger 1, secondary interchanger 2, one-level filter 3 and secondary filter 4 are connected successively through corresponding pipeline, pump, valve, secondary interchanger 2 series connection cooling towers 5 constitute the freezing and filtering device; Wherein, connect Y type deep bed filter 6 at one-level interchanger 1 front end; Wherein, surge tank 8 is installed between one-level filter 3 and secondary filter 4; Wherein, agitation vat 9 is communicated with one-level filter 3 and secondary filter 4 through pipeline respectively; Wherein, connect millipore filter 7 in secondary filter 4 backs; It is characterized in that: one-level filter 3 is connected diatomite grease recycling unit with secondary filter 4 rear ends, described diatomite grease recycling unit comprises diatomite withdrawing can 10, deep bed filter 11, gun barrel 12, air vessel 13, alcohol container 14 and pure water pot 15, one-level filter 3 and secondary filter 4 rear ends are through corresponding pipeline, pump, valve connects diatomite withdrawing can 10, diatomite withdrawing can 10 is communicated with agitation vat 9 and deep bed filter 11 respectively, deep bed filter 11 is communicated with gun barrel 12, air vessel 13 is communicated with one-level filter 3 respectively through pipeline, secondary filter 4 and diatomite withdrawing can 10, alcohol container 14 is communicated with diatomite withdrawing can 10 through pipeline, and pure water pot 15 is communicated with one-level filter 3 respectively through pipeline, secondary filter 4 and diatomite withdrawing can 10.
Embodiment 1: according to following steps freezing and filtering wine liquid:
(1) precooling:
18℃ wine liquid by valve, charging variable frequency pump to Y type deep bed filter, the one-level interchanger is sent in supercharging hold back the granule foreign in the wine liquid in Y type deep bed filter after, carrying out the cold displacement with the lonely wine liquid below-10 ℃ of secondary filter outlet, is 2 ℃ through one-level exchanger outlet wine liquid temp; Wherein, Y type deep bed filter is imported and exported and is set metered valve respectively, and the wine liquid measure that control enters Y type deep bed filter can fully be filtered wine liquid;
(2) speed is cold:
2℃ wine liquid flow into the secondary interchanger and cool off once more, cooling back wine liquid temp is below-10 ℃, waits to be filtered; Wherein, provide cold by spiral-lobe compressor, adjust according to the automatic level Four energy of load variations, and show energy adjustment state, the refrigeration compressor condenser adopts water cooling mode, and refrigeration agent is R22;
(3) one-level is filtered: squeeze into the precoating of one-level filter after diatom stirs in agitation vat, wine liquid through overrunning cold enters the one-level filter by valve, pump, carry out carrying out normal filtration again behind the internal recycle of 10min in the one-level filter, it is to be filtered that the wine liquid after the filtration enters surge tank; Wherein, one-level filter wine liquid ingress dress thermometer and tensimeter are monitored the temperature and the pipeline pressure of wine liquid at any time; Between outlet of one-level filter and surge tank, increase automatic reflux line to secondary interchanger inlet, when the wine liquid temp that enters the one-level filter is higher than-10 ℃, wine liquid is back to the secondary interchanger lowers the temperature, until reaching set(ting)value;
(4) cascade filtration: squeeze into the precoating of secondary filter in agitation vat after diatomite stirs, wine liquid in the surge tank enters the internal recycle that carries out 10min in the secondary filter and carries out normal filtration again, the millipore filter in secondary filter exit is held back micro-diatomite dust and fine impurities, obtains the liquor of clear;
(5) diatomite reclaims: the one-level filter, in the secondary filter adsorption-flocculation diatomite of lipid material extrude remaining wine through oil-free compressed air, be mixed into slurry with pure water and diatomite, open the one-level filter, secondary filter bottom valve, slurry reclaims pump by diatomite and pumps into the diatomite withdrawing can, feed oil-free compressed air and fully stirring in the diatomite withdrawing can, leave standstill, the upper strata oil-water mixture is squeezed into gun barrel, remove remaining water in lower floor's diatomite with oil-free compressed air again, the 70%vol edible ethanol is squeezed in the diatomite withdrawing can diatomite is carried out cleaning and regeneration, and the diatomite of regenerating returns pump by diatomite and pumps into agitation vat and recycle;
(6) grease reclaims: the upper strata oil-water mixture in the diatomite withdrawing can after precipitation leaves standstill, and by the residual diatomite particle of deep bed filter filtering, pump into gun barrel again and carry out the oily water separation processing, reclaim grease wherein.
Embodiment 2: according to following steps freezing and filtering wine liquid:
(1) precooling:
21℃ wine liquid by valve, charging variable frequency pump to Y type deep bed filter, the one-level interchanger is sent in supercharging hold back the granule foreign in the wine liquid in Y type deep bed filter after, carrying out the cold displacement with the lonely wine liquid below-10 ℃ of secondary filter outlet, is 1 ℃ through one-level exchanger outlet wine liquid temp; Wherein, Y type deep bed filter is imported and exported and is set metered valve respectively, and the wine liquid measure that control enters Y type deep bed filter can fully be filtered wine liquid;
(2) speed is cold:
1℃ wine liquid flow into the secondary interchanger and cool off once more, cooling back wine liquid temp is below-10 ℃, waits to be filtered; Wherein, provide cold by spiral-lobe compressor, adjust according to the automatic level Four energy of load variations, and show energy adjustment state, the refrigeration compressor condenser adopts water cooling mode, and refrigeration agent is R22;
(3) one-level is filtered: squeeze into the precoating of one-level filter after diatom stirs in agitation vat, wine liquid through overrunning cold enters the one-level filter by valve, pump, carry out carrying out normal filtration again behind the internal recycle of 10min in the one-level filter, it is to be filtered that the wine liquid after the filtration enters surge tank; Wherein, one-level filter wine liquid ingress dress thermometer and tensimeter are monitored the temperature and the pipeline pressure of wine liquid at any time; Between outlet of one-level filter and surge tank, increase automatic reflux line to secondary interchanger inlet, when the wine liquid temp that enters the one-level filter is higher than-10 ℃, wine liquid is back to the secondary interchanger lowers the temperature, until reaching set(ting)value;
(4) cascade filtration: squeeze into the precoating of secondary filter in agitation vat after diatomite stirs, wine liquid in the surge tank enters the internal recycle that carries out 10min in the secondary filter and carries out normal filtration again, the millipore filter in secondary filter exit is held back micro-diatomite dust and fine impurities, obtains the liquor of clear;
(5) diatomite reclaims: the one-level filter, in the secondary filter adsorption-flocculation diatomite of Ester extrude remaining wine through oil-free compressed air, be mixed into slurry with pure water and diatomite, open the one-level filter, secondary filter bottom valve, slurry reclaims pump by diatomite and pumps into the diatomite withdrawing can, feed oil-free compressed air and fully stirring in the diatomite withdrawing can, leave standstill, the upper strata oil-water mixture is squeezed into gun barrel, remove remaining water in lower floor's diatomite with oil-free compressed air again, the 70%vol edible ethanol is squeezed in the diatomite withdrawing can diatomite is carried out cleaning and regeneration, and the diatomite of regenerating returns pump by diatomite and pumps into agitation vat and recycle;
(6) grease reclaims: the upper strata oil-water mixture in the diatomite withdrawing can after precipitation leaves standstill, and by the residual diatomite particle of deep bed filter filtering, pump into gun barrel again and carry out the oily water separation processing, reclaim grease wherein.
Embodiment 3: according to following steps freezing and filtering wine liquid:
(1) precooling: the wine liquid under the normal temperature passes through valve, charging variable frequency pump to Y type deep bed filter, the one-level interchanger is sent in supercharging hold back the granule foreign in the wine liquid in Y type deep bed filter after, carrying out the cold displacement with the lonely wine liquid below-10 ℃ of secondary filter outlet, is 0 ℃ through one-level exchanger outlet wine liquid temp; Wherein, Y type deep bed filter is imported and exported and is set metered valve respectively, and the wine liquid measure that control enters Y type deep bed filter can fully be filtered wine liquid;
(2) speed is cold:
0℃ wine liquid flow into the secondary interchanger and cool off once more, cooling back wine liquid temp is below-10 ℃, waits to be filtered; Wherein, provide cold by spiral-lobe compressor, adjust according to the automatic level Four energy of load variations, and show energy adjustment state, the refrigeration compressor condenser adopts water cooling mode, and refrigeration agent is R22;
(3) one-level is filtered: squeeze into the precoating of one-level filter after diatom stirs in agitation vat, wine liquid through overrunning cold enters the one-level filter by valve, pump, carry out carrying out normal filtration again behind the internal recycle of 10min in the one-level filter, it is to be filtered that the wine liquid after the filtration enters surge tank; Wherein, one-level filter wine liquid ingress dress thermometer and tensimeter are monitored the temperature and the pipeline pressure of wine liquid at any time; Between outlet of one-level filter and surge tank, increase automatic reflux line to secondary interchanger inlet, when the wine liquid temp that enters the one-level filter is higher than-10 ℃, wine liquid is back to the secondary interchanger lowers the temperature, until reaching set(ting)value;
(4) cascade filtration: squeeze into the precoating of secondary filter in agitation vat after diatomite stirs, wine liquid in the surge tank enters the internal recycle that carries out 10min in the secondary filter and carries out normal filtration again, the millipore filter in secondary filter exit is held back micro-diatomite dust and fine impurities, obtains the liquor of clear;
(5) diatomite reclaims: the one-level filter, in the secondary filter adsorption-flocculation diatomite of lipid material extrude remaining wine through oil-free compressed air, be mixed into slurry with pure water and diatomite, open the one-level filter, secondary filter bottom valve, slurry reclaims pump by diatomite and pumps into the diatomite withdrawing can, feed oil-free compressed air and fully stirring in the diatomite withdrawing can, leave standstill, the upper strata oil-water mixture is squeezed into gun barrel, remove remaining water in lower floor's diatomite with oil-free compressed air again, the 70%vol edible ethanol is squeezed in the diatomite withdrawing can diatomite is carried out cleaning and regeneration, and the diatomite of regenerating returns pump by diatomite and pumps into agitation vat and recycle;
(6) grease reclaims: the upper strata oil-water mixture in the diatomite withdrawing can after precipitation leaves standstill, and by the residual diatomite particle of deep bed filter filtering, pump into gun barrel again and carry out the oily water separation processing, reclaim grease wherein.
Claims (3)
1. total reflux liquor freezing and filtering device, the freezing and filtering device comprises one-level interchanger (1), secondary interchanger (2), one-level filter (3), secondary filter (4) and cooling tower (5), one-level interchanger (1), secondary interchanger (2), one-level filter (3) and secondary filter (4) are connected successively through corresponding pipeline, pump, valve, secondary interchanger (2) series connection cooling tower (5) constitutes the freezing and filtering device; Wherein, connect Y type deep bed filter (6) at one-level interchanger (1) front end; Wherein, between one-level filter (3) and secondary filter (4), surge tank (8) is installed; Wherein, agitation vat (9) is communicated with one-level filter (3) and secondary filter (4) through pipeline respectively; Wherein, connect millipore filter (7) in secondary filter (4) back; It is characterized in that: one-level filter (3) is connected diatomite grease recycling unit with secondary filter (4) rear end, described diatomite grease recycling unit comprises diatomite withdrawing can (10), deep bed filter (11), gun barrel (12), air vessel, alcohol container and pure water pot, one-level filter (3) and secondary filter (4) rear end are through corresponding pipeline, pump, valve connects diatomite withdrawing can (10), diatomite withdrawing can (10) is communicated with agitation vat (9) and deep bed filter (11) respectively, deep bed filter (11) is communicated with gun barrel (12), air vessel (13) is communicated with one-level filter (3) respectively through pipeline, secondary filter (4) and diatomite withdrawing can (10), alcohol container (14) is communicated with diatomite withdrawing can (10) through pipeline, and pure water pot (15) is communicated with one-level filter (3) respectively through pipeline, secondary filter (4) and diatomite withdrawing can (10).
2. total reflux liquor freezing and filtering method at first, is successively freezed wine liquid by one-level interchanger and secondary interchanger, and the wine liquid of normal temperature reaches 2-0 ℃ through the one-level interchanger, reaches below-10 ℃ through the secondary interchanger; Secondly, the wine liquid after the cooling filters through one-level filter or secondary filter, makes wine liquid reach clarification; It is characterized in that: last, to adsorption-flocculation the diatomite of higher fatty acid ethyl esters clean with edible ethanol at the diatomite withdrawing can and carry out diatomite and reclaim, reclaim grease at gun barrel.
3. total reflux liquor freezing and filtering method according to claim 2, its concrete steps are as follows: (1) precooling: the wine liquid of normal temperature passes through valve, charging variable frequency pump to Y type deep bed filter, the one-level interchanger is sent in supercharging hold back the granule foreign in the wine liquid in Y type deep bed filter after, carrying out the cold displacement with the lonely wine liquid below-10 ℃ of secondary filter outlet, is 2-0 ℃ through one-level exchanger outlet wine liquid temp; (2) speed is cold:
2-0 ℃ wine liquid flows into the secondary interchanger and cools off once more, and cooling back wine liquid temp is below-10 ℃, waits to be filtered; (3) one-level is filtered: squeeze into the precoating of one-level filter after diatomite stirs in agitation vat, wine liquid through overrunning cold enters the one-level filter by valve, pump, the internal recycle that carries out 10-15min in the one-level filter carries out normal filtration again, and it is to be filtered that the wine liquid after the filtration enters surge tank; (4) cascade filtration: squeeze into the precoating of secondary filter in agitation vat after diatomite stirs, wine liquid in the surge tank enters the internal recycle that carries out 10-15min in the secondary filter and carries out normal filtration again, the millipore filter in secondary filter exit is held back micro-diatomite dust and fine impurities, obtains the liquor of clear; It is characterized in that: (5) diatomite reclaims: the one-level filter, in the secondary filter adsorption-flocculation diatomite of Ester extrude remaining wine through oil-free compressed air, be mixed into slurry with pure water and diatomite, open the one-level filter, secondary filter bottom valve, slurry reclaims pump by diatomite and pumps into the diatomite withdrawing can, feed oil-free compressed air and fully stirring in the diatomite withdrawing can, leave standstill, the upper strata oil-water mixture is squeezed into gun barrel, remove remaining water in lower floor's diatomite with oil-free compressed air again, the 70%vol edible ethanol is squeezed in the diatomite withdrawing can diatomite is carried out cleaning and regeneration, and the diatomite of regenerating returns pump by diatomite and pumps into agitation vat and recycle; (6) grease reclaims: the upper strata oil-water mixture in the diatomite withdrawing can after precipitation leaves standstill pumps into gun barrel again and carries out the oily water separation processing by the residual diatomite particle of deep bed filter filtering, reclaims grease wherein.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010554207 CN102021107B (en) | 2010-11-23 | 2010-11-23 | Total-reflux white spirit freezing and filtering device and method thereof |
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| CN 201010554207 CN102021107B (en) | 2010-11-23 | 2010-11-23 | Total-reflux white spirit freezing and filtering device and method thereof |
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| CN102021107B CN102021107B (en) | 2012-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102304459A (en) * | 2011-09-14 | 2012-01-04 | 福建惠泽龙酒业有限公司 | Yellow wine clarifying device |
| CN103666995A (en) * | 2012-09-04 | 2014-03-26 | 扬州润明轻工机械有限公司 | White spirit freezing and filtering system |
| CN104096701A (en) * | 2014-06-30 | 2014-10-15 | 吐鲁番楼兰酒业有限公司 | Self-cleaning degerming filtrating wine-filling device and use method thereof |
| CN108102869A (en) * | 2018-01-16 | 2018-06-01 | 天津市宝钜净化设备工程有限公司 | Zero-emission, the cryogenic freezing filtering cleaning of continuous operation wine and device |
| CN108587846A (en) * | 2018-05-02 | 2018-09-28 | 果洛金粿生态科技发展有限责任公司 | A kind of filter device and its processing technology for the production of black highland barley wine |
| CN109055157A (en) * | 2018-09-20 | 2018-12-21 | 劲牌有限公司 | A kind of energy-efficient continuous freezing and filtering system and process of health-care spirit |
| CN110117519A (en) * | 2019-06-10 | 2019-08-13 | 宁波乐惠国际工程装备股份有限公司 | Continuous filtering device and continous way filter plant |
| CN110331072A (en) * | 2019-08-11 | 2019-10-15 | 高云芝 | A kind of process for cleanly preparing of filter at low temperature equipment |
| CN111960918A (en) * | 2019-05-20 | 2020-11-20 | 中山市华士达生物科技有限公司 | Production line of purified ethanol |
| CN112831391A (en) * | 2020-12-31 | 2021-05-25 | 重庆中轻装备有限公司 | White spirit filtering system and technological method |
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| CN109055157A (en) * | 2018-09-20 | 2018-12-21 | 劲牌有限公司 | A kind of energy-efficient continuous freezing and filtering system and process of health-care spirit |
| CN111960918A (en) * | 2019-05-20 | 2020-11-20 | 中山市华士达生物科技有限公司 | Production line of purified ethanol |
| CN110117519A (en) * | 2019-06-10 | 2019-08-13 | 宁波乐惠国际工程装备股份有限公司 | Continuous filtering device and continous way filter plant |
| CN110117519B (en) * | 2019-06-10 | 2024-04-05 | 宁波乐惠国际工程装备股份有限公司 | Continuous filter device and continuous filter equipment |
| CN110331072A (en) * | 2019-08-11 | 2019-10-15 | 高云芝 | A kind of process for cleanly preparing of filter at low temperature equipment |
| CN112831391A (en) * | 2020-12-31 | 2021-05-25 | 重庆中轻装备有限公司 | White spirit filtering system and technological method |
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| CN102021107B (en) | 2012-12-05 |
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