US3756405A - Separating apparatus and method - Google Patents

Separating apparatus and method Download PDF

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Publication number
US3756405A
US3756405A US00232449A US3756405DA US3756405A US 3756405 A US3756405 A US 3756405A US 00232449 A US00232449 A US 00232449A US 3756405D A US3756405D A US 3756405DA US 3756405 A US3756405 A US 3756405A
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US
United States
Prior art keywords
grid
elements
conduit
separating
set forth
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Expired - Lifetime
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US00232449A
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English (en)
Inventor
E Fenska
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.)
Phillips Petroleum Co
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Phillips Petroleum Co
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Publication date
Application filed by Phillips Petroleum Co filed Critical Phillips Petroleum Co
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Publication of US3756405A publication Critical patent/US3756405A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements

Definitions

  • This invention therefore resides in an improved separating apparatus and method having a downwardly extending grid and means for delivering material to be separated onto an upper end portion of the grid.
  • Said grid is formed of elements spaced one from the other a distance sufficient for separating pellet globules and elongated filaments from pellets.
  • Conduits extend across the grid and have a plurality of openings directed along the upper surface of the grid and through the grid for passing pressurized fluid streams therealong and therethrough.
  • FIG. 1 shows a side view of the apparatus
  • FIG. 2 shows a view of the grid of the apparatus
  • FIG. 3 shows another embodiment of the grid.
  • a housing 2 having first and second outlets 4, 6 and an inlet 8 is positioned about a downwardly extending separating apparatus or grid 10.
  • a material hopper 12 contains materials to be separated and extends through the housing inlet 8 with its discharge end 14 adjacent and over an upper end portion 16 of an upper surface 18 of the grid 10.
  • a blower 20 can be positioned adjacent a lower surface 22 of the grid for passing a volume of air through the housing 2 and the grid 10 in a direction from the lower surface 22 toward the upper surface 18 of the grid 10.
  • the first outlet 4 is in communication with the lower surface 22 of the grid 10 for delivering separated material, pellets for example, to a preselected location.
  • the second outlet 6 is in communication with the upper surface 18 of the grid 10 for directing material that does not pass through the grid 10, for example balled filaments and elongated filaments, to another preselected location, for example a disposal location.
  • the granular polymers can be accompanied by balled filaments called bird nests," fine particles called fines and elongated filaments or film streamers called angel hair.
  • pellets 26 By use of the term pellets 26 herein, it is meant the desired product particles.
  • balled filaments 28 utilized herein is meant a conglomeration of entangled elongated filaments sometimes called bird nest.
  • elongated filaments 29 utilized herein is meant the elongated strips or film streamers sometimes called angel hair.
  • the pellets 26 pass through the grid 10 and outwardly through the first oulet 4 to a recovery situs.
  • the balled filaments 28 and the elongated filaments 29 do not pass through the grid 10 and are directed into and through the second outlet 6 to another location where they are recovered and disposed of. At least a portion of the fines can be removed from the pellets 26 by a stream of air passing from the blower through the second outlet 6.
  • a first conduit 30 is positioned across the grid 10 adjacent the upper end portion 16 and the upper surface 18 of the grid 10.
  • the first conduit 30 has a plurality of openings 32 directed along the upper surface of the grid 10.
  • the first conduit 30 is connected to a pressurized fluid supply source 34, for example an air compressor, for passing air into and through the conduit 30, through the conduit openings 32, and along the upper surface 18 of the grid 10.
  • a pressurized fluid supply source 34 for example an air compressor
  • a second conduit 36 is positioned across the grid 10 adjacent a lower end portion 38 of the grid 10 and the lower surface 22 of the grid 10.
  • the second conduit 36 has a plurality of openings 40 directed toward the grid 10.
  • the second conduit 36 is also connected to a pressurized air supply source, preferably source 34, for passing air into and through the conduit 36, through the conduit openings 40, and the grid 10.
  • a pressurized air supply source preferably source 34
  • the grid 10 is preferably formed of elongated, separating or grid elements 42.
  • These grid elements 42 are preferably of a curvalinear concave configuration in order that the elements can be of greater stiffness and the spacing between the elements 42 can be maintained without further bracing which might decrease the efficiency of separation.
  • the elements In order to further increase the rigidity of elements 42, it is preferred that the elements be maintained in tension along their length by exerting opposed forces on opposite ends of the elements with said forces being directed in opposed directions.
  • the elements 42 can be corrugated or of other configuration.
  • removable spacing elements 44 be positioned between adjacent grid elements 42 in order that the distance of separation A between adjacent grid elements 42 can be easily changed when the materials to be separated are changed.
  • openings 40 of the second conduits 36 be aligned and directed toward the spaces S between adjacent grid elements 42 and that there i be an opening adjacent eachspace.
  • a preferred angle of inclination (in FIG. 3) of the grid 10 is an angle in the range of about 12 to about 26 relative to the horizontal. At angles less than about 12 the material tends to pile up on the grid 10, and at angles greater than about 26 excessive amounts of pellets are not separated and pass through the second outlet 6, thereby resulting in waste.
  • the air streams passing from the openings 32 contact the material discharging from the hopper 12 and stir said material on the grid 10 thereby facilitating the separation of the pellets by bringing said pellets to unrestricted locations above the spaces S of the grid 10.
  • pellets 26 often become supported by elongated filaments 29 and/or the balled filaments 28 and are moved by the undesirable material into the second outlet 6 thereby causing waste.
  • the air streams discharging from openings 40 contact the elongated filaments 29 and balled filaments 28 and cause them to be urged upwardly for further assuring that said materials 28, 29 are not supporting pellets and causing pellets to be separated from the materials.
  • At least a portion, preferably all, of the grid elements 42 adjacent the second conduit 36 have an abrupt change in width W" forming an interrupted upper surface 18.
  • the interruption 50 is of a magnitude such that material 26, 28, 29 moving along the upper surface 18 of the grid elements 42 free fall at the location of the interruption 50 from the upper end portion 16 to the lower end portion 38 of the grid elements 42.
  • a separating apparatus having a downwardly extending grid and means for delivering material to be separated onto an upper end portion of the grid, said grid being formed of grid elements spaced one from the other a distance sufficient for passing pellets between the grids for separating pellet globules and elongated filaments from the pellets, the improvement comprising:
  • first conduit extending across the grid adjacent the upper end portion and an upper surface ofthe grid, said conduit having a plurality of openings directed along the upper surface of the grid;
  • a second conduit extending across the grid adjacent a lower end portion of the grid and a lower surface of the grid, said conduit having a plurality of openings directed toward the grid for passing air from the conduit upwardly through the grid;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US00232449A 1972-03-07 1972-03-07 Separating apparatus and method Expired - Lifetime US3756405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23244972A 1972-03-07 1972-03-07

Publications (1)

Publication Number Publication Date
US3756405A true US3756405A (en) 1973-09-04

Family

ID=22873155

Family Applications (1)

Application Number Title Priority Date Filing Date
US00232449A Expired - Lifetime US3756405A (en) 1972-03-07 1972-03-07 Separating apparatus and method

Country Status (10)

Country Link
US (1) US3756405A (it)
JP (1) JPS5834190B2 (it)
BE (1) BE796333A (it)
CA (1) CA970720A (it)
DE (2) DE7308642U (it)
ES (1) ES412225A1 (it)
FR (1) FR2175144B1 (it)
GB (1) GB1412035A (it)
IT (1) IT981161B (it)
ZA (1) ZA73127B (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900498A (en) * 1988-03-25 1990-02-13 Phillips Petroleum Company Method for separating elongated contaminants from a stream of material
US5009331A (en) * 1988-03-25 1991-04-23 Phillips Petroleum Company Apparatus for separating elongated contaminants from a stream of material
US5341937A (en) * 1992-12-16 1994-08-30 Machinefabriek Bollegraaf Appingedam B.V. Apparatus for separating recyclable waste
DE4446323A1 (de) * 1994-12-23 1996-06-27 Koehl Maschbau Gmbh Tabakrecycling
DE19606890A1 (de) * 1996-02-23 1997-08-28 Peter Sendrowski Verfahren und Vorrichtung zum Trennen von Kunststoff- bzw. Nichtkunststoff-Mischkomponenten
US20060016920A1 (en) * 2004-05-18 2006-01-26 Wolfgang Holzer Device for feeding wood chips to a processing unit
US20100133152A1 (en) * 2008-12-03 2010-06-03 Westlake Longview Corporation Streamer trap assembly
CN111036552A (zh) * 2019-12-25 2020-04-21 巢湖美维食品有限公司 一种紫薯干加工用原料连续式筛选装置
US10987699B2 (en) * 2016-11-08 2021-04-27 Jesús Sánchez Rodríguez Density separator for waste material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342038B2 (it) * 1973-11-19 1978-11-08
JP2535778B2 (ja) * 1994-03-18 1996-09-18 工業技術院長 固形物の気流選別方法及び装置
DE19717514A1 (de) * 1997-04-25 1998-10-29 Peter Dieckmann Verfahren und Vorrichtung zur Aufbereitung von getrockneten Kräutern
DE102013010841A1 (de) * 2013-06-28 2014-12-31 Dirk Barnstedt Vorrichtung zum Trennen von flächigen und körperförmigen leichten und schweren Feststoffen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US742158A (en) * 1902-03-21 1903-10-27 American Coal Screen Company Coal-screen.
US2825454A (en) * 1954-09-10 1958-03-04 Merrill N Musgrave Devices for separating raisins from admixed stems
US3506123A (en) * 1968-12-06 1970-04-14 Allis Chalmers Mfg Co Rod deck screen with resilient material receiving section

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840131A (it) * 1971-09-29 1973-06-13

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US742158A (en) * 1902-03-21 1903-10-27 American Coal Screen Company Coal-screen.
US2825454A (en) * 1954-09-10 1958-03-04 Merrill N Musgrave Devices for separating raisins from admixed stems
US3506123A (en) * 1968-12-06 1970-04-14 Allis Chalmers Mfg Co Rod deck screen with resilient material receiving section

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900498A (en) * 1988-03-25 1990-02-13 Phillips Petroleum Company Method for separating elongated contaminants from a stream of material
US5009331A (en) * 1988-03-25 1991-04-23 Phillips Petroleum Company Apparatus for separating elongated contaminants from a stream of material
US5341937A (en) * 1992-12-16 1994-08-30 Machinefabriek Bollegraaf Appingedam B.V. Apparatus for separating recyclable waste
DE4446323A1 (de) * 1994-12-23 1996-06-27 Koehl Maschbau Gmbh Tabakrecycling
DE19606890A1 (de) * 1996-02-23 1997-08-28 Peter Sendrowski Verfahren und Vorrichtung zum Trennen von Kunststoff- bzw. Nichtkunststoff-Mischkomponenten
US20060016920A1 (en) * 2004-05-18 2006-01-26 Wolfgang Holzer Device for feeding wood chips to a processing unit
US20100133152A1 (en) * 2008-12-03 2010-06-03 Westlake Longview Corporation Streamer trap assembly
US8118173B2 (en) * 2008-12-03 2012-02-21 Westlake Longview Corp. Streamer trap assembly
US10987699B2 (en) * 2016-11-08 2021-04-27 Jesús Sánchez Rodríguez Density separator for waste material
CN111036552A (zh) * 2019-12-25 2020-04-21 巢湖美维食品有限公司 一种紫薯干加工用原料连续式筛选装置

Also Published As

Publication number Publication date
CA970720A (en) 1975-07-08
JPS48101648A (it) 1973-12-21
ZA73127B (en) 1973-09-26
DE2311308B2 (it) 1980-01-03
BE796333A (fr) 1973-09-06
GB1412035A (en) 1975-10-29
FR2175144A1 (it) 1973-10-19
DE2311308A1 (de) 1973-10-18
JPS5834190B2 (ja) 1983-07-25
IT981161B (it) 1974-10-10
DE2311308C3 (de) 1980-09-04
ES412225A1 (es) 1976-05-01
DE7308642U (de) 1976-03-18
AU5100273A (en) 1974-07-11
FR2175144B1 (it) 1976-09-10

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