SE9203624L - Screening Procedure - Google Patents

Screening Procedure

Info

Publication number
SE9203624L
SE9203624L SE9203624A SE9203624A SE9203624L SE 9203624 L SE9203624 L SE 9203624L SE 9203624 A SE9203624 A SE 9203624A SE 9203624 A SE9203624 A SE 9203624A SE 9203624 L SE9203624 L SE 9203624L
Authority
SE
Sweden
Prior art keywords
chips
fines
screen
conveyor
rejects
Prior art date
Application number
SE9203624A
Other languages
Swedish (sv)
Other versions
SE9203624D0 (en
SE501112C2 (en
Inventor
Antti Tohkala
Original Assignee
Sunds Defibrator Woodhandling
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 Sunds Defibrator Woodhandling filed Critical Sunds Defibrator Woodhandling
Priority to SE9203624A priority Critical patent/SE501112C2/en
Publication of SE9203624D0 publication Critical patent/SE9203624D0/en
Publication of SE9203624L publication Critical patent/SE9203624L/en
Publication of SE501112C2 publication Critical patent/SE501112C2/en

Links

Classifications

    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

A wood chip screening system has a number of parallel rotating shafts each carrying a number of spaced parallel intermeshed discs to accept fines and some good chips. The screening is stopped prior to full screening and the remaining chips passed to a conventional roller screen with multiple rotating rollers spaced to reject overthick and/or overlong chips onto a reject conveyor. - The 1st screen has rollers (2) with intermeshing discs (1) to rapidly pass fines and a few acceptable chips into a hopper (12). A small capacity fines screen (13) under the hopper rejects fines and transfers good chips to an accept conveyor (14). The discharge over the 1st screen passes to a conventional roller screen (10) with accepts passing through onto the accepts conveyor (14) and rejects passing over onto a rejects conveyor (15) for rechipping.
SE9203624A 1992-12-02 1992-12-02 Wood chip screening system - with a 1st disc screen, 2nd roller screen and small capacity fines screen SE501112C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9203624A SE501112C2 (en) 1992-12-02 1992-12-02 Wood chip screening system - with a 1st disc screen, 2nd roller screen and small capacity fines screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9203624A SE501112C2 (en) 1992-12-02 1992-12-02 Wood chip screening system - with a 1st disc screen, 2nd roller screen and small capacity fines screen

Publications (3)

Publication Number Publication Date
SE9203624D0 SE9203624D0 (en) 1992-12-02
SE9203624L true SE9203624L (en) 1994-06-03
SE501112C2 SE501112C2 (en) 1994-11-21

Family

ID=20387999

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9203624A SE501112C2 (en) 1992-12-02 1992-12-02 Wood chip screening system - with a 1st disc screen, 2nd roller screen and small capacity fines screen

Country Status (1)

Country Link
SE (1) SE501112C2 (en)

Also Published As

Publication number Publication date
SE9203624D0 (en) 1992-12-02
SE501112C2 (en) 1994-11-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed