GB363618A - Improved process of dressing or grading coal - Google Patents

Improved process of dressing or grading coal

Info

Publication number
GB363618A
GB363618A GB21070/30A GB2107030A GB363618A GB 363618 A GB363618 A GB 363618A GB 21070/30 A GB21070/30 A GB 21070/30A GB 2107030 A GB2107030 A GB 2107030A GB 363618 A GB363618 A GB 363618A
Authority
GB
United Kingdom
Prior art keywords
coal
durain
vitrain
fusain
casing
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
Application number
GB21070/30A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB363618A publication Critical patent/GB363618A/en
Expired legal-status Critical Current

Links

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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal

Landscapes

  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

363,618. Systems for reducing coal ; impact pulverizers. LEHMANN, K., 233, Alfredstrasse, Essen, Germany.-(Assignees of Rheinische Stahlwerke ; Essen, Germany.) July 11, 1930, No. 21070. Convention date, July 31, 1929. [Class 59.] Coal is separated into its macroscopic banded constituents (fusain, durain, and vitrain) by subjecting it to resilient disintegrating or shattering action and then separating the different sized granules by screening. The degree of disintegration and sifting is ascertained by preliminary tests. The coal is subjected to blows or taps or beating as in a beater mill, which may comprise a perforated coned casing with a rotating shaft carrying beaters to fling the coal against the casing. The perforations range from about 4 mm. diameter near the intake to 1 mm. near the delivery end. The smaller fragments, mainly vitrain and fusain pass through the perforations ; the larger fragments, mainly durain pass to the delivery end of the casing. In an example, coal from a hopper a is preliminarily treated on a grading screen b and in a centrifugal mill d, before separation into its constituents by means of a vibrating screen e, cleaning tables g<1>, g<2>, g<3> and centrifugal mills h<1>, h<2>. Shale collects at B and fusain, vitrain, and durain in bunkers F, V, D respectively.
GB21070/30A 1929-07-31 1930-07-11 Improved process of dressing or grading coal Expired GB363618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE363618X 1929-07-31

Publications (1)

Publication Number Publication Date
GB363618A true GB363618A (en) 1931-12-11

Family

ID=6312371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21070/30A Expired GB363618A (en) 1929-07-31 1930-07-11 Improved process of dressing or grading coal

Country Status (1)

Country Link
GB (1) GB363618A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022659A1 (en) * 1979-07-13 1981-01-21 Exxon Research And Engineering Company Carbonaceous solids cleaning process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022659A1 (en) * 1979-07-13 1981-01-21 Exxon Research And Engineering Company Carbonaceous solids cleaning process

Similar Documents

Publication Publication Date Title
GB1582476A (en) Method and apparatus for the treatment of refuse
US2842319A (en) Method of producing ultra-clean coal
GB363618A (en) Improved process of dressing or grading coal
US2877953A (en) Granular sclerenchyma and the method of its production from douglas fir bark
US2232696A (en) Method for detaching and cleaning constituent particles of naturally granular material
US2444929A (en) Method of treating bark
US1854659A (en) Process of dressing coal
GB1374020A (en) Method of and apparatus for processing mineral ore containing fibrous material to remove the fibrous material therefrom
US2452533A (en) Preparation of paper-making fiber and other useful materials from straw
DE364941C (en) Impact mill
US2874908A (en) Separating pure sclerenchyma fibers from douglas fir bark
US2144384A (en) Soft stone eliminator
DE553710C (en) Schlagwerkmuehle for breaking down coal into its petrographic components
GB671569A (en) Improvements in apparatus for disintegrating and screening particulate material
US732779A (en) Apparatus for separating kernels from hulls of seeds.
US675423A (en) Process of treating cotton-seed.
US3080905A (en) Method for decorticating safflower seed
GB533942A (en) Improvements relating to the separation and recovery of short fibrous asbestos from granular asbestos-bearing rock
US530533A (en) Disolaimee
DE370024C (en) Crushing device combined with a dissolving device for the production of flour of high fineness and purity from coal, lime and the like. like
US1755573A (en) Method of and mechanism for grinding and separating materials
US364587A (en) higgin
DE470684C (en) Schlagstiftmuehle with an enlarged space surrounding the beater disks
US1399891A (en) Process of isolating fiber from bagasse
US907340A (en) Process of treating cotton-seed hulls.