US2668796A - Method of reclaiming detergent solutions - Google Patents

Method of reclaiming detergent solutions Download PDF

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Publication number
US2668796A
US2668796A US121808A US12180849A US2668796A US 2668796 A US2668796 A US 2668796A US 121808 A US121808 A US 121808A US 12180849 A US12180849 A US 12180849A US 2668796 A US2668796 A US 2668796A
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US
United States
Prior art keywords
stream
liquid
solution
reclaiming
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US121808A
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English (en)
Inventor
Frederick W Wehmiller
William J Nekola
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Barry Wehmiller Co Inc
Original Assignee
Barry Wehmiller Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE497757D priority Critical patent/BE497757A/xx
Application filed by Barry Wehmiller Co Inc filed Critical Barry Wehmiller Co Inc
Priority to US121808A priority patent/US2668796A/en
Priority to GB14710/50A priority patent/GB685228A/en
Priority to FR1022573D priority patent/FR1022573A/fr
Application granted granted Critical
Publication of US2668796A publication Critical patent/US2668796A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention

Definitions

  • This invention relates to methods of -reclaiming detergent solutions, and particularly to the problem of" reclaiming -suchs0lutions" th'athave been 1 used under conditions which produce large volumes of'foam.
  • foaming occurs when a detergent solution is forcibly employed for cleansing operations, especially when the solution is: forcibly: projected from nozzles In somecasesthe foaming ismaterially increased by; the -presenceof paper; glue, etc.
  • a specific obj ect' of the present invention is to immediately subject the foamystream to acontinuous reclaiming operation while it fallingfrom a cleansing zone-, thereby eliminating some tions" whereby interrupted foam bubbles are" broken, or merged intoeach other and converted into'free' liquid; which descends with said liquid portions of 'the falling stream; while the 1 inter-- rupted solid foreigntmaterial travels away from the liquid stream.
  • the re sultant used solution is a voluminous frothymass containing solid foreign material such as paper labels;- orfragments of labels; brokemglass; andothen'solidg particles, all' of which are discharged" 2; stream of recl'aimed solution that can be readily delivered toa storage receptacle, while solid? foreign matteris withdrawn and separated -from' the falling liquid-solution;
  • the invention comprises the novel method here thereby interrupting a mass of foam and solidi:
  • a screen 3 provided with a frame including: side wall members flit and an endiwall member: 5.
  • This screen i is yieldahly supported by a pair: of?" elongated leaf;springs 6, each having a middle; portion rigidly secured to astationarylsbracket I; and free upper: end" portions 8? attached tonnes ofthe side wallmemhers
  • the screen can be yieldably supported and vibrated in. any suitable manner.
  • A's a-simple means for impartingsairapid vibrant:- tory motion to the screen, we have shown aa-tua bulan housing 9*- located above the screen and having: its ends 1 rigidly secured a to Y the? sideswalli members.
  • This housing contains :a': rotary; shafts having'an eccentric: portion Illiforming; an une balanced weight and trunnions l l extending from; said weight, said" trunnions being: supportedr in suitable bearings at end? portions :of: the: housing 9.
  • A- driving pulley! 2 ins-secured toioneroffthesw trunnions- H to-providefor rotation of?
  • the ec'a centric weights
  • the housing 9 and its eccentric shaft are supported by the side wall members 4 of the screen frame which rest upon the free upper ends of the springs 6.
  • the screen will vibrate in response to rotary movements of the eccentric weight 10, which whirls around the axis of the trunnions ll without touching the housing 9.
  • Extremely rapid vibrations can be produced by turning the eccentric shaft at high speeds, so as to rapidly vibrate the screen in more or less circular cycles. For example, a speed of about 2000 revolutions per minute will produce effective rapid vibrations, but any other desirable high speed can be employed.
  • the drawings illustrate a system wherein the new method has been very advantageously used on a large commercial scale to recover caustic solution while it is falling from a cleansing zone.
  • Numerous streams of the solution are discharged onto and into traveling bottles at the cleansing zone, so as to remove labels, glue, etc.
  • extremely violent foaming occurs at the numerous streams which forcibly contact with the bottles and splash onto portions of the bottle carriers, and finally fall with additional splashing to a large discharge opening.
  • the foaming is increased by the presence of paper and glue in the violently agitated solution, so the outgoing stream is a voluminous frothy mass, that has been difficult to control after it leaves the cleansing zone.
  • our reclaiming operations can be performed while the continuous stream is descending by gravity from a cleansing zone, without using pumps or other mechanical transferring devices that would forcibly agitate the solution and thereby cause additional foaming.
  • the new process very conveniently eliminates large volumes of foam and greatly reduces the problem of handling and reclaiming the bulky stream.
  • the interrupted mixture of paper and other solid foreign material travels along the vibrating screen to the open end I! of the screen frame, where it is separately discharged from the system.
  • An example of a detergent solution actually used in the removal of labels, etc. from traveling bottles consists of a 4% solution of sodium hydroxide, known as a caustic solution, which may be modified by the addition of sodium carbonate, trisodium phosphate as well as other organic or inorganic agents tending to increase the detergent powers of the solution.
  • a caustic solution which may be modified by the addition of sodium carbonate, trisodium phosphate as well as other organic or inorganic agents tending to increase the detergent powers of the solution.
  • advantages of the invention can be obtained in the reclaiming of other detergent solutions which produce large volumes of foam in response to violent agitation in a cleansing zone.
  • the strokes of the rapid vibrations of the screen are very short, and may be about 3 2' of an inch, or even less.
  • a screen having a mesh between 12 and 20 per inch is satisfactory.
  • the method of reclaiming the liquids held in a bubble-like suspension of a frothy mass in caustic solution, containing paper and other solid materials which comprises directing all of the liquid, frothy mass of suspended liquid and solid material in a free falling stream, interrupting the solids and frothy mass of the stream while allowing the liquid portions of the stream to pass on in the same direction as the free falling stream, breaking down the interrupted frothy mass to separate the liquid portion from the solids and release the air and other gases entrapped therein and simultaneously progressively displacing the interrupted solids from the free falling stream, collecting below the point of interruption of the solids and frothy mass the liquid portions of the stream, including the separated liquid portion of the frothy mass, and directing the collected liquid into a pool at a relatively low velocity to avoid frothing of the reclaimed solution.
  • the method of reclaiming the liquids held in a bubble-like suspension of a frothy mass in a caustic solution, containing paper and other solid materials which comprises directing all of the liquid, frothy mass of suspended liquid and solid material in a free falling stream, interrupting the solids and frothy mass of the stream while allowing the liquid portions of the stream to pass on in the same direction as the free falling stream, vibrating the interrupted frothy mass and solids to displace the solids from the stream and simultaneously convert the frothy mass to free liquid, collecting below the level at which interruption occurs only the liquid portions of the stream, including the separated liquid portion of the frothy mass, and running off the collecting liquid into a pool at a relatively low velocity to avoid frothing of the reclaimed solution in the pool.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Paper (AREA)
US121808A 1949-10-17 1949-10-17 Method of reclaiming detergent solutions Expired - Lifetime US2668796A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE497757D BE497757A (enrdf_load_stackoverflow) 1949-10-17
US121808A US2668796A (en) 1949-10-17 1949-10-17 Method of reclaiming detergent solutions
GB14710/50A GB685228A (en) 1949-10-17 1950-06-13 Improvements in or relating to a method of reclaiming detergent solutions
FR1022573D FR1022573A (fr) 1949-10-17 1950-07-27 Perfectionnements à un procédé de régénération de solutions détersives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US121808A US2668796A (en) 1949-10-17 1949-10-17 Method of reclaiming detergent solutions

Publications (1)

Publication Number Publication Date
US2668796A true US2668796A (en) 1954-02-09

Family

ID=22398932

Family Applications (1)

Application Number Title Priority Date Filing Date
US121808A Expired - Lifetime US2668796A (en) 1949-10-17 1949-10-17 Method of reclaiming detergent solutions

Country Status (4)

Country Link
US (1) US2668796A (enrdf_load_stackoverflow)
BE (1) BE497757A (enrdf_load_stackoverflow)
FR (1) FR1022573A (enrdf_load_stackoverflow)
GB (1) GB685228A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776339A (en) * 1952-09-05 1957-01-01 Edgar Gretener Eidophor liquid regenerating system
US3216643A (en) * 1962-07-13 1965-11-09 Verter Walton G De Foam fluxing apparatus
US3273573A (en) * 1964-09-14 1966-09-20 Champion Dish Washing Machine Dishwashing machine and refuse disposal and method
DE1271292B (de) * 1964-12-08 1968-06-27 Shell Int Research Verfahren zur Herstellung von Schmieroelen oder Schmieroelbestandteilen
US4326859A (en) * 1980-04-25 1982-04-27 Burnham Gerald E Sr Degassing of drilling fluids
US4362628A (en) * 1980-07-23 1982-12-07 Methods Engineering, Inc. Method and apparatus for cleaning basins
US4897203A (en) * 1988-02-26 1990-01-30 Pure-Chem Products, Inc. Process and apparatus for recovery and recycling conveyor lubricants
US4897202A (en) * 1988-01-25 1990-01-30 Pure-Chem Products, Inc. Process and apparatus for recovery and recycling conveyor lubricants

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1805830A (en) * 1929-05-20 1931-05-19 Mason Charles Dorel Foam destroyer
US2183896A (en) * 1937-06-01 1939-12-19 Colorado Fuel & Iron Corp Method of filtering or dewatering
US2329333A (en) * 1941-11-10 1943-09-14 Robert J S Carter Dewatering screen
US2421952A (en) * 1943-10-28 1947-06-10 Lipsius Samuel Purification of copals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1805830A (en) * 1929-05-20 1931-05-19 Mason Charles Dorel Foam destroyer
US2183896A (en) * 1937-06-01 1939-12-19 Colorado Fuel & Iron Corp Method of filtering or dewatering
US2329333A (en) * 1941-11-10 1943-09-14 Robert J S Carter Dewatering screen
US2421952A (en) * 1943-10-28 1947-06-10 Lipsius Samuel Purification of copals

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2776339A (en) * 1952-09-05 1957-01-01 Edgar Gretener Eidophor liquid regenerating system
US3216643A (en) * 1962-07-13 1965-11-09 Verter Walton G De Foam fluxing apparatus
US3273573A (en) * 1964-09-14 1966-09-20 Champion Dish Washing Machine Dishwashing machine and refuse disposal and method
DE1271292B (de) * 1964-12-08 1968-06-27 Shell Int Research Verfahren zur Herstellung von Schmieroelen oder Schmieroelbestandteilen
US4326859A (en) * 1980-04-25 1982-04-27 Burnham Gerald E Sr Degassing of drilling fluids
US4362628A (en) * 1980-07-23 1982-12-07 Methods Engineering, Inc. Method and apparatus for cleaning basins
US4897202A (en) * 1988-01-25 1990-01-30 Pure-Chem Products, Inc. Process and apparatus for recovery and recycling conveyor lubricants
US4897203A (en) * 1988-02-26 1990-01-30 Pure-Chem Products, Inc. Process and apparatus for recovery and recycling conveyor lubricants

Also Published As

Publication number Publication date
FR1022573A (fr) 1953-03-06
BE497757A (enrdf_load_stackoverflow)
GB685228A (en) 1952-12-31

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