US3844491A - Material reclaiming and classifying apparatus - Google Patents

Material reclaiming and classifying apparatus Download PDF

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Publication number
US3844491A
US3844491A US31676872A US3844491A US 3844491 A US3844491 A US 3844491A US 31676872 A US31676872 A US 31676872A US 3844491 A US3844491 A US 3844491A
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US
United States
Prior art keywords
air
chute
waste material
magnetic
waste
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
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English (en)
Inventor
R Williams
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.)
Williams Patent Crusher and Pulverizer Co Inc
Original Assignee
Williams Patent Crusher and Pulverizer 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
Application filed by Williams Patent Crusher and Pulverizer Co Inc filed Critical Williams Patent Crusher and Pulverizer Co Inc
Priority to US31676872 priority Critical patent/US3844491A/en
Priority to CA178,293A priority patent/CA977308A/en
Priority to JP9679473A priority patent/JPS4989248A/ja
Application granted granted Critical
Publication of US3844491A publication Critical patent/US3844491A/en
Priority to JP1978073483U priority patent/JPS5746070Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S241/00—Solid material comminution or disintegration
    • Y10S241/38—Solid waste disposal

Definitions

  • the nonmetallic waste is conveyed to a gravity separator air chute where the properly sized material is floated out by air and the heavier material drops out and is recycled for further reduction.
  • the properly sized material is air conveyed to a cyclone separator to remove it from the air stream for recycling of the air back to the air chute.
  • the apparatus is used for classifying combustible waste material by applying the air flotation principle to sort the material according to size and to place the material of suitable size in a conveying air stream connected with a cyclone separator for removal from the air which when cleaned is recirculated in a continuous cycle.
  • the present apparatus aims to avoid the burning step by reducing the waste material in a classification apparatus, whereby the magnetic metallic components are separated out by magnetic means, thereby leaving the non-magnetic and the non-metallic material to be further processed in an air flotation step.
  • the flotation step is used to separate or classify the material of proper size from that which requires further reduction by being recycled.
  • the properly sized material is air conveyed to apparatus which removes such material and returns the air for reuse in a continuous flotation and air conveying cycle to control the dust and dirt that might cause worker health hazards.
  • An object of this invention is directed to the apparatus for classifying waste material by size which comprises components initially subjecting the waste material to a general size reduction and subsequently classi fying the material by directing it into an air stream where smaller components are separated from the larger and heavier components.
  • Another object of this invention is directed to apparatus for classifying waste materials by means for shredding all of the waste material to obtain a general size reduction for expediting the initial classification and separation of the magnetic metallics from the nonmagnetics and non-metallics, and to means for classifying the non-magnetics and non-metallics in an air stream where the air responsive components are separated from the heavier components, and recycling the heavier components back to the shredding step for subsequent classifying treatment.
  • the preferred apparatus operates to initially shred and reduce the entire mix of magnetic and nonmagnetic metallic and non-metallic waste material, vibratorially and magnetically separating the shredded mix to separate out and collect the magnetic metallic components, treat the essentially non-magnetic and non-metallic components to an air flotation separating step for extracting the smaller components from the heavier conponents, to air convey the smaller components to a cleaning device where the components are removed from the air, and to return the cleaned air for further use in the flotation step, while collecting the removed waste components.
  • FIG. 1 is a plan view of the apparatus in a preferred layout for processing industrial oversized, bulky material and packer truck material in which a mixture of magnetic and non-magnetic metallic and non-metallic components are present;
  • FIG. 2 is a longitudinal elevational view of the apparatus seen along lines 2-2 in FIG. 1;
  • FIG. 3 is a further elevational view of the apparatus as seen from a different view taken along line 3-3 in FIG. 1;
  • FIG. 4 is a fragmentary elevational view of the air flotation chute portion of the present apparatus, the view being taken along line 4-4 in FIG. 1;
  • FIG. 6 is a fragmentary elevational view of the air cleaning apparatus associated with the air flotation chute system, the view being taken at line 6-6 in FIG. 1.
  • the present apparatus is seen in a general plan view in FIG. 1 where the reduction and shredding mill 10 is operated by a suitable drive motor 11.
  • the material to be treated such as industrial oversized waste and packer truck material, is dumped into the receiving end 12 of a suitable conveyor 13 which is upwardly inclined from the low end 12 to the mill ltll.
  • a suitable pit 14 is provided for the conveyor end 12 and the upper end at the inill 10 is covered by a housing; 15 in which flexible curtains l6 greatly aid in confining the dust that is created when the material falls into the mill rotor.
  • the mill 10 is constructed generally in accordance with the feature disclosed in my prior US. Pat. No. 3,667,694 issued June 6, 1972.
  • FIGS. 1 and 2 the material shredded and reduced in the mill 10 is discharged through the mill grate onto a vibrating conveyor 17 having a horizontally vibratory surface 18 sloped toward the discharge end 19.
  • the material is vibrated and the various components are caused to separate and spread out as the same moves down the slope thus discharged moves past a rotating magnetic separator drum 20 where magnetic material is extracted from the non-magnetic material and is carried over the drum 20 for discharge onto a suitable conveyor 21, the receiving end of which is provided with walls 22 to confine the magnetic metallic components.
  • the remainder of the material falls into a chute 23 over the adjacent end of a suitable conveyor 24.
  • the conveyors 21 and 24 are located in a pit 25 at one side of a sub-grade trench 26 for the vibratory conveyor 17 under the mill 1!).
  • the conveyor 21 for the extracted magnetic metallic components extends along the pit 25 to a conveyor section 27 which is upwardly inclined to an elevated discharge end supported on a post 28 at a location where the discharge may be collected in a bin or in a vehicle.
  • the rest of the shredded material passing the magnetic drum is collected by the conveyor 24 and carried up the incline to the side inlet of the air chute 29.
  • the upper end of the conveyor is covered by a canopy 30.
  • the air chute 29 is more particularly seen in FIG. 4 as having a vertically directed generally rectangular column 31 opening at the top into a conveyor tube 32.
  • the bottom of column 31 is aligned over a material confining sleeve 33 associated with the lower end of a conveyor 34 which extends up wardly and is angled outwardly of a pit branch section 25a to a position over the pit 14 in which the principal conveyor receiving end 12 is disposed.
  • the conveyor 34 returns certain components of the waste material, such as large pieces of metal, wood, and glass to the conveyor 13 for recycling to the mill 10.
  • a supporting post 35 is provided under the conveyor 34 in the pit section 25a, and its discharge end is supported by a second post 36 (FIG.
  • the air chute 29 has its vertical column 31 formed with a side inlet at the upper end of the conveyor 24, below the inlet there is connected the air delivery conduit end 37 where a suitable stream of air is delivered by conduit 38 from the blower 39 driven by motor 40 through a drive belt 41.
  • the blower suction conduit 42 is connected to the outlet cupola 43 of a cyclone separator device 44 (FIG. 6).
  • the outlet conduit 32 of the air chute leads to the inlet 45 for the cyclone separator 44, thereby completing a closed circuit which includes the air chute 29, the blower 39 and the separator 44.
  • the separator 44 (FIG. 6) has its waste material outlet 46 connected to the top of a silo chamber 47, with a rotary valve mounted in the outlet 46 so that the waste material separated from the air stream can be continuously dumped into the silo 47.
  • the industrial bulk and packer truck waste material which has passed through the shredding mill is first classified at the discharge of the vibratory conveyor 17 (FIG. 2) into magnetic metallic components collected on conveyor 21 and generally non-magnetic and nonmetallic components collected on conveyor 24. Some of the waste material, ususally small bits and particles that fall out at the mill entrance are collected in a dribble chute 48 (FIG. 2) and conducted directly to the vibratory conveyor 17.
  • a principal aim of this apparatus is to handle the nonmetallic waste material in a novel manner so that this material can be conditioned for further handling where the combustible components can be used as a source of fuel for a source of heat, or for other purposes requiring a fuel source.
  • the waste material collected on conveyor 24 is further processed in a size classification stage of the present apparatus.
  • the classification stage is carried out by delivering the generally non-magnetic and non-metallic waste material to an air chute device 29 where it is caused to fall by gravity into a controlled air stream.
  • the chute 29 is vertically positioned shaft to which air is delivered by conduit 38 at a velocity of approximately 50011 feet per minute.
  • the air movement in the column 31 picks up only those components of the waste material, such as paper and similar light-weight objects having a size which will result in its being floated out of the upper end of the column 31 where it is carried by conduit 32 to the inlet of the cyclone separator 44.
  • the air conveyed material in conduit 32 enters the cyclone separator 44 where it is spun out of the air flow and drops down for passage to the silo 47.
  • the cleaned air is returned to the suction side of blower 39 for reuse in the air chute 29.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)
  • Disintegrating Or Milling (AREA)
US31676872 1972-12-20 1972-12-20 Material reclaiming and classifying apparatus Expired - Lifetime US3844491A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US31676872 US3844491A (en) 1972-12-20 1972-12-20 Material reclaiming and classifying apparatus
CA178,293A CA977308A (en) 1972-12-20 1973-08-08 Comminution, magnetic and closed circuit pneumatic separation in waste reclamation
JP9679473A JPS4989248A (enrdf_load_html_response) 1972-12-20 1973-08-30
JP1978073483U JPS5746070Y2 (enrdf_load_html_response) 1972-12-20 1978-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31676872 US3844491A (en) 1972-12-20 1972-12-20 Material reclaiming and classifying apparatus

Publications (1)

Publication Number Publication Date
US3844491A true US3844491A (en) 1974-10-29

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Application Number Title Priority Date Filing Date
US31676872 Expired - Lifetime US3844491A (en) 1972-12-20 1972-12-20 Material reclaiming and classifying apparatus

Country Status (3)

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US (1) US3844491A (enrdf_load_html_response)
JP (2) JPS4989248A (enrdf_load_html_response)
CA (1) CA977308A (enrdf_load_html_response)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981454A (en) * 1975-07-07 1976-09-21 Williams Patent Crusher And Pulverizer Company Waste material processing apparatus
US4098464A (en) * 1974-10-18 1978-07-04 Krauss-Maffei Aktiengesellschaft Method of treating refuse for reclamation of valuable components thereof
US4145007A (en) * 1976-06-14 1979-03-20 Gewerbebank Baden Aktiengesellschaft Method and apparatus for processing waste materials
US4623515A (en) * 1980-12-24 1986-11-18 Organ-Fager Technology, N.V. Process for producing fibrous and granular materials from waste
CN102728461A (zh) * 2012-06-20 2012-10-17 成都利君科技有限责任公司 微粉及细粉干式磁选机
GB2563639A (en) * 2017-06-21 2018-12-26 Ecohog Ltd An aggregate separation apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222317A (en) * 1975-08-12 1977-02-19 Osaka Gas Co Ltd System for treating and filling back soil excavated during road repair work
JPS59180740U (ja) * 1983-05-16 1984-12-03 タニナカ産業株式会社 磁石付破砕機

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554450A (en) * 1946-07-12 1951-05-22 Agrashell Inc Fire-avoiding grinding and classifying system and process
US2668667A (en) * 1950-05-08 1954-02-09 American Cyanamid Co Separation of coarse light minerals in multiple cyclone-separator stages
US2692677A (en) * 1951-02-09 1954-10-26 Dorr Co Process for classifying magnetized or magnetizable solids
US3477649A (en) * 1967-09-26 1969-11-11 Le Roy E Dalberg Solid waste reclaiming method and system
US3524594A (en) * 1968-05-31 1970-08-18 Metropolitan Waste Conversion Refuse handling system
US3650396A (en) * 1970-11-18 1972-03-21 Sortex North America Refuse separating and sorting method and apparatus
US3660038A (en) * 1970-08-07 1972-05-02 Garbalizer Corp Integrated garbage processing system
US3670968A (en) * 1970-06-02 1972-06-20 Owens Illinois Inc System and process for recovery of cellulosic fibrous material from refuse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4716031U (enrdf_load_html_response) * 1971-03-24 1972-10-25

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554450A (en) * 1946-07-12 1951-05-22 Agrashell Inc Fire-avoiding grinding and classifying system and process
US2668667A (en) * 1950-05-08 1954-02-09 American Cyanamid Co Separation of coarse light minerals in multiple cyclone-separator stages
US2692677A (en) * 1951-02-09 1954-10-26 Dorr Co Process for classifying magnetized or magnetizable solids
US3477649A (en) * 1967-09-26 1969-11-11 Le Roy E Dalberg Solid waste reclaiming method and system
US3524594A (en) * 1968-05-31 1970-08-18 Metropolitan Waste Conversion Refuse handling system
US3670968A (en) * 1970-06-02 1972-06-20 Owens Illinois Inc System and process for recovery of cellulosic fibrous material from refuse
US3660038A (en) * 1970-08-07 1972-05-02 Garbalizer Corp Integrated garbage processing system
US3650396A (en) * 1970-11-18 1972-03-21 Sortex North America Refuse separating and sorting method and apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098464A (en) * 1974-10-18 1978-07-04 Krauss-Maffei Aktiengesellschaft Method of treating refuse for reclamation of valuable components thereof
US3981454A (en) * 1975-07-07 1976-09-21 Williams Patent Crusher And Pulverizer Company Waste material processing apparatus
US4145007A (en) * 1976-06-14 1979-03-20 Gewerbebank Baden Aktiengesellschaft Method and apparatus for processing waste materials
US4227653A (en) * 1976-06-14 1980-10-14 Gewerbebank Baden Aktiengesellschaft Method of processing waste materials
US4623515A (en) * 1980-12-24 1986-11-18 Organ-Fager Technology, N.V. Process for producing fibrous and granular materials from waste
CN102728461A (zh) * 2012-06-20 2012-10-17 成都利君科技有限责任公司 微粉及细粉干式磁选机
CN102728461B (zh) * 2012-06-20 2015-02-04 成都利君科技有限责任公司 微粉及细粉干式磁选机
GB2563639A (en) * 2017-06-21 2018-12-26 Ecohog Ltd An aggregate separation apparatus
GB2563639B (en) * 2017-06-21 2022-05-18 Ecohog Ltd An aggregate separation apparatus

Also Published As

Publication number Publication date
JPS5746070Y2 (enrdf_load_html_response) 1982-10-09
JPS542278U (enrdf_load_html_response) 1979-01-09
CA977308A (en) 1975-11-04
JPS4989248A (enrdf_load_html_response) 1974-08-26

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