GB665313A - Improvements in or relating to the sifting or screening of moist crushed coal or ore - Google Patents

Improvements in or relating to the sifting or screening of moist crushed coal or ore

Info

Publication number
GB665313A
GB665313A GB9895/49A GB989549A GB665313A GB 665313 A GB665313 A GB 665313A GB 9895/49 A GB9895/49 A GB 9895/49A GB 989549 A GB989549 A GB 989549A GB 665313 A GB665313 A GB 665313A
Authority
GB
United Kingdom
Prior art keywords
screen
sifting
heated
screening
ore
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
GB9895/49A
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 GB665313A publication Critical patent/GB665313A/en
Expired legal-status Critical Current

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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/56—Heated screens
    • B07B1/62—Heated screens heated by direct electric heating

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

665,313. Sifting apparatus. BURSTLEIN, E. M. April 12, 1949 [Sept. 6, 1948 ; Nov. 25, 1948], Nos. 9895/49, 9896/49. Class 117 The screening or sifting element of an apparaus for sifting moist crushed coal or ore is electrically heated to a temperature sufficient for preventing moistening (and thus avoiding clogging) of said surface by the material, without drying the material itself. As shown, a vibrating screen a is directly heated by an electric current controlled by a rheostat e, the circuit b including a thermostat (not shown). Alternatively the screen supports, which are insulated, are connected to the electric supply to provide indirect heating of the screen, or the screen may be heated by an induced electric current. For normal operation on non-porous material having a moisture content about 15 per cent, the temperature of the screening element may be raised to, and maintained thermostatically at, about 40‹C. The apparatus may be combined with crushing machines. The Specification as open to inspection under Sect. 91 comprises also arrangements wherein rotary drum sieves or plane reciprocating sieves are heated either by gas jet lines or by infra-red radiation from lamps adjacent the screen. The heating may also be effected by hot gases or steam. This subject-matter does not appear in the Specification as accpted.
GB9895/49A 1948-09-06 1949-04-12 Improvements in or relating to the sifting or screening of moist crushed coal or ore Expired GB665313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR665313X 1948-09-06

Publications (1)

Publication Number Publication Date
GB665313A true GB665313A (en) 1952-01-23

Family

ID=9013232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9895/49A Expired GB665313A (en) 1948-09-06 1949-04-12 Improvements in or relating to the sifting or screening of moist crushed coal or ore

Country Status (1)

Country Link
GB (1) GB665313A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826304A (en) * 1952-12-26 1958-03-11 Deister Concentrator Material separating device
US2868378A (en) * 1952-11-03 1959-01-13 Longwy Acieries Electrically heated screens
US2984357A (en) * 1957-04-08 1961-05-16 Kufferath Josef Electrically heated screen for separating coarser material from accompanying fines
US2989182A (en) * 1956-07-21 1961-06-20 Longwy Acieries Method for differentially heating a screening surface
CN114505228A (en) * 2022-03-02 2022-05-17 辽宁工程技术大学 Self-heating type flexible screen for coal mine drying

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868378A (en) * 1952-11-03 1959-01-13 Longwy Acieries Electrically heated screens
US2826304A (en) * 1952-12-26 1958-03-11 Deister Concentrator Material separating device
US2989182A (en) * 1956-07-21 1961-06-20 Longwy Acieries Method for differentially heating a screening surface
US2984357A (en) * 1957-04-08 1961-05-16 Kufferath Josef Electrically heated screen for separating coarser material from accompanying fines
CN114505228A (en) * 2022-03-02 2022-05-17 辽宁工程技术大学 Self-heating type flexible screen for coal mine drying

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