WO2001060493A1 - Method and device for purifying liquids - Google Patents
Method and device for purifying liquids Download PDFInfo
- Publication number
- WO2001060493A1 WO2001060493A1 PCT/CH2001/000091 CH0100091W WO0160493A1 WO 2001060493 A1 WO2001060493 A1 WO 2001060493A1 CH 0100091 W CH0100091 W CH 0100091W WO 0160493 A1 WO0160493 A1 WO 0160493A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coolant
- liquid
- tank
- suction device
- coolant tank
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1069—Filtration systems specially adapted for cutting liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0009—Settling tanks making use of electricity or magnetism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/04—Working-up used lubricants to recover useful products ; Cleaning aqueous emulsion based
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
Definitions
- the present invention relates to a method for cleaning liquids according to the preamble of claim 1 and an apparatus for performing the method according to the preamble of claim 6.
- Contaminants in liquids that are used in a closed circuit such as cooling liquids, must be able to be removed in the most effective manner without restricting the throughput rate of the liquid flow too much.
- the method according to the invention is also particularly suitable for cleaning large liquid throughputs, for example up to 1000 liters / minute, and reliably removes all contaminants in the liquid.
- Another major advantage is that the dirt accumulates as a puncture-resistant sludge concentrate, which is easy to handle on the one hand and easy to dispose of on the other.
- This sediment is then drawn off from the bottom and also fed to the fine filter with a small volume flow, where these dirt particles are also reliably removed.
- the one used for transportation and now cleaned Liquid can advantageously be returned to the liquid tank.
- the method according to the invention is particularly suitable for the cleaning of cooling liquid, such as are used for cooling the machining tools in machine tools. A large part of the machined, removed material of the workpiece is swept away from the processing point by the cooling liquid and must be removed from the cooling liquid.
- the method can also be used for other liquids used in a circuit, which are to be continuously freed of impurities.
- the bottom region of the liquid tank with a conical central part that promotes the sedimentation of the residues in the coolant and allows it to accumulate at a defined location, namely preferably an annular bottom region of the coolant tank.
- the sediment can be reliably suctioned off in a simple manner and fed to the further cleaning stage.
- This arrangement is particularly advantageous for compact systems of smaller format, as can be used for example for individual machine tools.
- such a cleaning system is capable of reliably cleaning even relatively high liquid throughputs, for example up to 1000 liters / minute.
- FIG. 2 schematically shows the longitudinal section through a cleaning device according to the invention.
- FIG. 1 schematically shows the process diagram of the process according to the invention.
- coolant 2 is supplied to the cooling location 4 in a supply line 3.
- This can be, for example, the processing location of a machine tool, where the coolant cools the tool on the one hand and the material removed from the workpiece on the other. the processing residues removed from processing location 4.
- These processing backlogs can be small solids made from a wide variety of materials or chemical residues.
- the coolant 2 contaminated in this way is then collected, for example, in a collecting funnel 5 and fed to a coarse filter 7 via a discharge line 6.
- the coarse impurities are separated from the coolant 2 in a first step.
- This can be done, for example, by means of a screening plant with passage openings equipped according to the expected size of the contaminants.
- a magnetic separator is preferably used when metal processing tools are used. The latter is particularly suitable when metallic contaminations are to be expected, as occurs when machining or abrasive machining of metallic workpieces.
- the coolant 2 flowing through this coarse filter 7 is then passed into a liquid tank 8.
- the impurities retained by the separator and / or filter of the pre-coarse filter 7 are removed via a flushing channel 9 with a small amount of coolant and fed to a fine filter system 10.
- the connecting line 11 between the pre-coarse filter 7 and the liquid tank 8 preferably opens into the upper region of the liquid tank 8.
- This liquid tank 8 is dimensioned so large that sedimentation of the contamination still in the cooling liquid 2 can take place on the bottom of the liquid tank 8.
- These sediments are continuously sucked off from the bottom of the liquid tank 8 by means of a suction device 12 and also fed to the fine filter system 10, for example via the flushing channel 9.
- the suction pump 12 ' is used for this.
- FIG. 2 shows the liquid tank 8 as the central component of a cleaning device according to the invention.
- the liquid tank 8 preferably has a conically tapering shape and preferably consists of a chromium-nickel steel.
- a tapered cone 18 is preferably inserted, which together with the side walls delimits an annular bottom of the liquid tank 8.
- the contamination still present in the coolant 2 is deposited as sediment on this annular base 8 ', which preferably has a circular shape. This is then sucked off by the suction device 12, the suction opening 12 ′′ of which is preferably driven to rotate about the vertical axis of the liquid tank 8, and fed via line 19 to the fine filter 10 arranged next to the liquid tank 8.
- the coarse filter 7 is arranged above the liquid tank 8, in which the discharge line 6 opens with the contaminated coolant 2.
- the pre-coarse filter 7 is preferably designed as a magnetic separator with a sieve, the separated or. Parts caught in the sieve can also be fed to the fine filter 10 via the line 9.
- Such a system has, for example, a liquid tank volume of 1500 liters and a coolant capacity of up to 250 liters / minute.
- the suction device 12 pumps out the sediment area with a maximum of 60 liters / minutes, which leads to a correspondingly reduced volume flow in the fine filter area 10.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001229947A AU2001229947A1 (en) | 2000-02-16 | 2001-02-12 | Method and device for purifying liquids |
EP01902231A EP1257341A1 (en) | 2000-02-16 | 2001-02-12 | Method and device for purifying liquids |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH299/00 | 2000-02-16 | ||
CH2992000 | 2000-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001060493A1 true WO2001060493A1 (en) | 2001-08-23 |
Family
ID=4490238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2001/000091 WO2001060493A1 (en) | 2000-02-16 | 2001-02-12 | Method and device for purifying liquids |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1257341A1 (en) |
AU (1) | AU2001229947A1 (en) |
WO (1) | WO2001060493A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1459839A1 (en) * | 2003-03-19 | 2004-09-22 | Cem di Cimini Nicola | Plant for shavings processing and for the oil recovery |
FR2979275A1 (en) * | 2011-08-24 | 2013-03-01 | Philippe Bruno Rouzee | Accessory apparatus for grinding machine that is utilized for polishing glass e.g. lens, has pump pumping collected water so as to circulate collected water through filtering device for removing residues obtained from grinding of glass |
CN103394967A (en) * | 2013-07-17 | 2013-11-20 | 上虞市金科环境设备有限公司 | Cutting fluid recycle regenerator |
CN104275626A (en) * | 2014-09-24 | 2015-01-14 | 浙江长兴天辰磁业有限公司 | Coolant recovery device for neodymium-iron-boron cutting machine tool |
CN104595469A (en) * | 2014-11-25 | 2015-05-06 | 合肥合锻机床股份有限公司 | Oil tank capable of recycling lubricating oil |
CN105397562A (en) * | 2015-12-10 | 2016-03-16 | 宁波海天精工股份有限公司 | Numerically-controlled machine tool high-pressure spindle inner-cooling system applied to deep hole machining |
CN105415087A (en) * | 2016-01-11 | 2016-03-23 | 苏州帝瀚环保科技股份有限公司 | Machine tool liquid tank purification system |
WO2021219243A1 (en) * | 2020-04-26 | 2021-11-04 | Smart Material Printing B.V. | Device and method for cleaning and recycling used lubricants and/or cooling lubricants |
CN114392607A (en) * | 2022-01-14 | 2022-04-26 | 中国科学院上海光学精密机械研究所 | Optical lens polishing solution circulating filter device |
CN114505727A (en) * | 2022-01-11 | 2022-05-17 | 范婷婷 | Cooling circulation system of metal processing machine and cooling method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455457A (en) * | 1965-11-22 | 1969-07-15 | Frank J Popelar | Liquid filtering system for machine coolant |
DE2220132A1 (en) * | 1972-04-25 | 1973-12-06 | Man Waerme Lufttechnik | Extracting steel making slags from a liq - process water is completely purified and recycled |
DE2731538A1 (en) * | 1977-07-09 | 1979-01-25 | Spandau Maschf Geco Pumpentech | Filter system for cutting coolant - having clean liquid tank with pump and dirty liquid tank feeding hydrocyclone purifier |
GB2084479A (en) * | 1980-09-23 | 1982-04-15 | Ford Motor Co | Separating solids from liquids |
US4872975A (en) * | 1989-01-31 | 1989-10-10 | Ingersoll-Rand Company | System for separating abrasive material from a fluid used in fluid jet cutting |
JPH07246542A (en) * | 1994-03-08 | 1995-09-26 | Mazda Motor Corp | Purifying device |
US5529695A (en) * | 1994-07-21 | 1996-06-25 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and method for removing swarf and fines from cutting fluids |
-
2001
- 2001-02-12 EP EP01902231A patent/EP1257341A1/en not_active Withdrawn
- 2001-02-12 WO PCT/CH2001/000091 patent/WO2001060493A1/en not_active Application Discontinuation
- 2001-02-12 AU AU2001229947A patent/AU2001229947A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455457A (en) * | 1965-11-22 | 1969-07-15 | Frank J Popelar | Liquid filtering system for machine coolant |
DE2220132A1 (en) * | 1972-04-25 | 1973-12-06 | Man Waerme Lufttechnik | Extracting steel making slags from a liq - process water is completely purified and recycled |
DE2731538A1 (en) * | 1977-07-09 | 1979-01-25 | Spandau Maschf Geco Pumpentech | Filter system for cutting coolant - having clean liquid tank with pump and dirty liquid tank feeding hydrocyclone purifier |
GB2084479A (en) * | 1980-09-23 | 1982-04-15 | Ford Motor Co | Separating solids from liquids |
US4872975A (en) * | 1989-01-31 | 1989-10-10 | Ingersoll-Rand Company | System for separating abrasive material from a fluid used in fluid jet cutting |
JPH07246542A (en) * | 1994-03-08 | 1995-09-26 | Mazda Motor Corp | Purifying device |
US5529695A (en) * | 1994-07-21 | 1996-06-25 | The United States Of America As Represented By The Secretary Of The Army | Apparatus and method for removing swarf and fines from cutting fluids |
Non-Patent Citations (2)
Title |
---|
DIETER W: "FILTERUNG VON KUPFERHALTIGEN KUEHL- UND SPUELFLUESSIGKEITEN", INDUSTRIE ANZEIGER,DE,LEINFELDEN-ECHTERDINGEN, vol. 97, no. 44, 30 May 1975 (1975-05-30), pages 869 - 871, XP002016488 * |
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01 31 January 1996 (1996-01-31) * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1459839A1 (en) * | 2003-03-19 | 2004-09-22 | Cem di Cimini Nicola | Plant for shavings processing and for the oil recovery |
FR2979275A1 (en) * | 2011-08-24 | 2013-03-01 | Philippe Bruno Rouzee | Accessory apparatus for grinding machine that is utilized for polishing glass e.g. lens, has pump pumping collected water so as to circulate collected water through filtering device for removing residues obtained from grinding of glass |
CN103394967A (en) * | 2013-07-17 | 2013-11-20 | 上虞市金科环境设备有限公司 | Cutting fluid recycle regenerator |
CN104275626A (en) * | 2014-09-24 | 2015-01-14 | 浙江长兴天辰磁业有限公司 | Coolant recovery device for neodymium-iron-boron cutting machine tool |
CN104595469A (en) * | 2014-11-25 | 2015-05-06 | 合肥合锻机床股份有限公司 | Oil tank capable of recycling lubricating oil |
CN105397562A (en) * | 2015-12-10 | 2016-03-16 | 宁波海天精工股份有限公司 | Numerically-controlled machine tool high-pressure spindle inner-cooling system applied to deep hole machining |
CN105415087A (en) * | 2016-01-11 | 2016-03-23 | 苏州帝瀚环保科技股份有限公司 | Machine tool liquid tank purification system |
WO2021219243A1 (en) * | 2020-04-26 | 2021-11-04 | Smart Material Printing B.V. | Device and method for cleaning and recycling used lubricants and/or cooling lubricants |
CN114505727A (en) * | 2022-01-11 | 2022-05-17 | 范婷婷 | Cooling circulation system of metal processing machine and cooling method thereof |
CN114392607A (en) * | 2022-01-14 | 2022-04-26 | 中国科学院上海光学精密机械研究所 | Optical lens polishing solution circulating filter device |
CN114392607B (en) * | 2022-01-14 | 2023-02-10 | 中国科学院上海光学精密机械研究所 | Optical lens polishing solution circulating filter device |
Also Published As
Publication number | Publication date |
---|---|
EP1257341A1 (en) | 2002-11-20 |
AU2001229947A1 (en) | 2001-08-27 |
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