US3693794A - Method and apparatus for separating granular goods - Google Patents

Method and apparatus for separating granular goods Download PDF

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Publication number
US3693794A
US3693794A US817127A US3693794DA US3693794A US 3693794 A US3693794 A US 3693794A US 817127 A US817127 A US 817127A US 3693794D A US3693794D A US 3693794DA US 3693794 A US3693794 A US 3693794A
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US
United States
Prior art keywords
goods
support
duct
specific gravity
improvement
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
US817127A
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English (en)
Inventor
Hans Oetiker
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.)
Buehler AG
Original Assignee
Buehler AG
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 claimed from CH567868A external-priority patent/CH491685A/de
Application filed by Buehler AG filed Critical Buehler AG
Application granted granted Critical
Publication of US3693794A publication Critical patent/US3693794A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables

Definitions

  • casing 2 forms a free chamber 12 which tapers to a nipple 13 which is connected, through a tubular collar 14 and a conduit 15 with a compressed air source 16.
  • Casing 2, to which support 1 is fixedly connected along its outer, edges, is supported on flexible resilient supports 17.
  • a vibrator 18 is arranged on an end face of casing 2, and this vibrator includes a motor 19 having an eccentric weight 20 secured on its driven or output shaft.
  • casing 2 Toward its upper end, casing 2 is closed by a cover plate 21 which has a sight glass 42 extending at least in the range of outlet 6.
  • Cover plate 21 has a nipple 22 which connects the free space above support 1 and, through a tubular collar 23, with an air exhaust which has not been shown.
  • Support 1 is bounded, at its lowest point, by rib 7 over which the light fraction flows into discharge device 8.
  • Discharge device 8 has nipples 9 to each of which is connected an elastic tube 10 through which the light fraction is discharged into a sluice 33 of a pneumatic conveyor system.
  • Chamber 12, beneath support 1, is connected to compressed air' source 16 through nipple 13, tubular collar 14 and conduit 15.
  • Casing 2 is mounted on the oscillatable resilient supports 17.
  • the improvement claimed in claim 1 including subjecting at least one of the fractions to substantially a reversal in flow direction when charged onto the goods support.
  • said goods feeding device extends along one side of said goods support and substantially parallel to the gradient of said goods support; said casing having side walls; one side wall of said duct being formed by a side wall of said casing, and the other side wall of said duct being formed by a partition.
  • apparatus for separating granular goods of different specific gravity means directing a gas current upwardly through, the support, an outlet for the heavy fractions at one end of the support, a discharge device for the light fractions at the other end of the support, the support having a gradient which descendsafrom the outlet to the discharge device and being vibrated in 'a direction opposite to the descending gradient, and a goods feeding device discharging onto the goods support: the improvement comprising, in combination, a vibrating duct, having a gas-permeable bottom and a discharge mouth, included in said feeding device; means directing a gas current upwardly through said gas-permeable bottom; said duct forming an initial sedimentation path of the heavy fraction of the fed goods, and along which path the goods are pre-sorted into a bottom layer, enriched with the heavy fractions,
US817127A 1968-04-17 1969-04-17 Method and apparatus for separating granular goods Expired - Lifetime US3693794A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH567868A CH491685A (de) 1968-04-17 1968-04-17 Vorrichtung zum Trennen von körnigem Gut
CH1679968A CH498664A (de) 1968-04-17 1968-11-11 Vorrichtung zum Trennen von körnigem Gut

Publications (1)

Publication Number Publication Date
US3693794A true US3693794A (en) 1972-09-26

Family

ID=25698192

Family Applications (1)

Application Number Title Priority Date Filing Date
US817127A Expired - Lifetime US3693794A (en) 1968-04-17 1969-04-17 Method and apparatus for separating granular goods

Country Status (11)

Country Link
US (1) US3693794A (fr)
JP (2) JPS5551633B1 (fr)
AT (1) AT297626B (fr)
BE (1) BE731593A (fr)
CH (1) CH498664A (fr)
CS (1) CS182755B2 (fr)
DE (1) DE1913708C3 (fr)
ES (2) ES365656A1 (fr)
FR (1) FR2006345A1 (fr)
GB (1) GB1247963A (fr)
SE (1) SE369379B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005050A1 (fr) * 1984-05-08 1985-11-21 Gebrüder Bühler Ag Installation et procede de triage de produits lourds, en particulier de pierres ou materiaux similaires, a partir de cereales et d'autres produits en vrac
US4793918A (en) * 1986-07-08 1988-12-27 Oliver Manufacturing Co., Inc. Gravity separator
US5024334A (en) * 1989-06-09 1991-06-18 Iowa State University Research Foundation, Inc. Method and means for gravity table automation
CN106529022A (zh) * 2016-11-09 2017-03-22 中国地质大学（北京） 一种储层分选性精确划分方法
CN113909117A (zh) * 2021-11-05 2022-01-11 浙江宇博新材料有限公司 一种再生骨料多级振动筛

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2812286C2 (de) * 1978-03-21 1984-11-15 Alpine Ag, 8900 Augsburg Vorrichtung zum Trennen von Schwergut und Leichtgut eines Feststoffgemisches
DE3148475A1 (de) * 1981-02-23 1982-09-23 Gebrüder Bühler AG, 9240 Uzwil "trennvorrichtung fuer getreide und aehnliches korngut"
CN103586211B (zh) * 2013-11-25 2015-06-24 湖北永祥粮食机械股份有限公司 一种吸式比重去石机的筛格
CN109012836B (zh) * 2018-08-07 2020-09-29 安徽儒特实业有限公司 一种无机涂料精细化研磨设备
CN113333291B (zh) * 2021-07-12 2022-07-22 湖北大楚农业科技有限公司 一种稻谷种子筛选机的风选机构

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB333622A (en) * 1929-05-17 1930-08-18 Colin William Higham Holmes Improvements in and relating to the separation of dry materials
US2063533A (en) * 1933-06-10 1936-12-08 Vissac Gustave Andre Air cleaner and classifier for fine coals
US2147822A (en) * 1926-03-25 1939-02-21 Pealc Davis Company Process and mechanism for separating intermixed divided materials
US2257624A (en) * 1939-05-18 1941-09-30 Reconstruction Finance Corp Process and apparatus for pneumatic separation of masses composed of particles having varied characteristics
US2275849A (en) * 1936-08-24 1942-03-10 Fraser Thomas Apparatus for separating mixed materials
US2404414A (en) * 1943-12-04 1946-07-23 Frank E Wood Method and apparatus for removal of heavy objectionable material from cereals, legumes, and other food products
US2427423A (en) * 1944-11-16 1947-09-16 Saxon Engineering Company Ltd Reciprocating mechanism for inclined mineral separating pneumatic tables
US2718307A (en) * 1950-12-26 1955-09-20 Arthur R Forsberg Air control for gravity separator
US2752041A (en) * 1954-12-23 1956-06-26 Roy E Clint Portable dry concentrator for ores
US2852137A (en) * 1956-06-05 1958-09-16 Commercial Mfg & Supply Co Raisin cleaner
US3045825A (en) * 1960-10-21 1962-07-24 Alexander S Watson Dry ore sorter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB332291A (en) * 1929-05-27 1930-07-24 Colin William Higham Holmes Improvements in and relating to the separation of dry materials
DE556995C (de) * 1931-02-22 1932-08-17 Westfalia Dinnendahl Groeppel Luftherd zur Aufbereitung von Mineralien mit auf der Herdflaeche angeordneten Stauwaenden, deren Durchlassoeffnungen fuer das schwere Gut durch schwenkbare Zungen regelbar sind
US2022588A (en) * 1933-09-01 1935-11-26 James H Dickerson Method of and apparatus for cleaning coal
FR777944A (fr) * 1933-11-22 1935-03-05 Procédé et dispositifs pour la séparation à sec de matières différentes mélangées et le classement de ces matières

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147822A (en) * 1926-03-25 1939-02-21 Pealc Davis Company Process and mechanism for separating intermixed divided materials
GB333622A (en) * 1929-05-17 1930-08-18 Colin William Higham Holmes Improvements in and relating to the separation of dry materials
US2063533A (en) * 1933-06-10 1936-12-08 Vissac Gustave Andre Air cleaner and classifier for fine coals
US2275849A (en) * 1936-08-24 1942-03-10 Fraser Thomas Apparatus for separating mixed materials
US2257624A (en) * 1939-05-18 1941-09-30 Reconstruction Finance Corp Process and apparatus for pneumatic separation of masses composed of particles having varied characteristics
US2404414A (en) * 1943-12-04 1946-07-23 Frank E Wood Method and apparatus for removal of heavy objectionable material from cereals, legumes, and other food products
US2427423A (en) * 1944-11-16 1947-09-16 Saxon Engineering Company Ltd Reciprocating mechanism for inclined mineral separating pneumatic tables
US2718307A (en) * 1950-12-26 1955-09-20 Arthur R Forsberg Air control for gravity separator
US2752041A (en) * 1954-12-23 1956-06-26 Roy E Clint Portable dry concentrator for ores
US2852137A (en) * 1956-06-05 1958-09-16 Commercial Mfg & Supply Co Raisin cleaner
US3045825A (en) * 1960-10-21 1962-07-24 Alexander S Watson Dry ore sorter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005050A1 (fr) * 1984-05-08 1985-11-21 Gebrüder Bühler Ag Installation et procede de triage de produits lourds, en particulier de pierres ou materiaux similaires, a partir de cereales et d'autres produits en vrac
EP0162014A1 (fr) * 1984-05-08 1985-11-21 Bühler AG Dispositif et procédé de séparation de matières granuleuses
WO1985005049A1 (fr) * 1984-05-08 1985-11-21 Gebrüder Bühler Ag Dispositif et procede permettant le triage separatif du grain
US4913804A (en) * 1984-05-08 1990-04-03 Roman Muller Device and process for separating granular material
US4793918A (en) * 1986-07-08 1988-12-27 Oliver Manufacturing Co., Inc. Gravity separator
US5024334A (en) * 1989-06-09 1991-06-18 Iowa State University Research Foundation, Inc. Method and means for gravity table automation
CN106529022A (zh) * 2016-11-09 2017-03-22 中国地质大学（北京） 一种储层分选性精确划分方法
CN106529022B (zh) * 2016-11-09 2019-09-06 中国石油大学(华东) 一种储层分选性精确划分方法
CN113909117A (zh) * 2021-11-05 2022-01-11 浙江宇博新材料有限公司 一种再生骨料多级振动筛
CN113909117B (zh) * 2021-11-05 2022-07-12 浙江宇博新材料有限公司 一种再生骨料多级振动筛

Also Published As

Publication number Publication date
CS182755B2 (en) 1978-05-31
FR2006345A1 (fr) 1969-12-26
ES365656A1 (es) 1971-03-16
CH498664A (de) 1970-11-15
AT297626B (de) 1972-04-10
GB1247963A (en) 1971-09-29
SE369379B (fr) 1974-08-26
JPS5551633B1 (fr) 1980-12-25
ES386492A1 (es) 1973-11-16
JPS5712425B1 (fr) 1982-03-10
DE1913708B2 (de) 1970-10-22
BE731593A (fr) 1969-10-16
DE1913708A1 (de) 1970-11-05
DE1913708C3 (de) 1971-05-19

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