GB854359A - Improvements in, or relating to, furnaces - Google Patents

Improvements in, or relating to, furnaces

Info

Publication number
GB854359A
GB854359A GB31521/55A GB3152155A GB854359A GB 854359 A GB854359 A GB 854359A GB 31521/55 A GB31521/55 A GB 31521/55A GB 3152155 A GB3152155 A GB 3152155A GB 854359 A GB854359 A GB 854359A
Authority
GB
United Kingdom
Prior art keywords
rollers
billets
furnace
levers
move
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
GB31521/55A
Inventor
Harold Greenhalgh
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.)
SALEM ENGINEERING Co Ltd
Original Assignee
SALEM ENGINEERING Co Ltd
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 SALEM ENGINEERING Co Ltd filed Critical SALEM ENGINEERING Co Ltd
Priority to GB31521/55A priority Critical patent/GB854359A/en
Publication of GB854359A publication Critical patent/GB854359A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
    • F27B9/067—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated heated by induction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam furnace
    • F27B9/202—Conveyor mechanisms therefor
    • F27B9/206—Conveyor mechanisms therefor consisting of a single central beam
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

854,359. Electric induction furnaces. SALEM ENGINEERING CO. Ltd. Feb. 4, 1957 [Nov. 4, 1955], No. 31521/55. Class 39(3). [Also in Group XII] A continuous furnace for heat treating metal billets 6 comprises separate sections 2 of refractory cement 3 enclosing an induction coil 5 and lined with a refractory tube 4, each end of each section being formed with a transverse recess, so that, when the sections are assembled end to end, openings 7 are formed at each junction. The induction coils are so rated as to divide the tunnel into a slow preheating zone, a rapid treating zone, and a soaking zone. At the leading end of each section is a work support 8 (not shown) comprising overlapping, superimposed wedges 9 and 10, Fig. 4, the latter being adjusted by a manually rotatable shaft 11 to vary the support height. Alternatively the wedges may be adjustably arranged side by side transversely of the corresponding opening 7. A beam structure 15 extending below the furnace carries at each opening 7 brackets 14 supporting a roller 12, and is supported by pivoted arms 20 connected at each end to pvioted levers 21, 22. Some of the levers 22 are bell cranks connected to a rod 24, reciprocated from a crank 26 to move the rollers periodically through the openings 7 raising the billets off the supports 8. The rollers may be positively driven through sprocket gearing 18 to move the billets, or they may be idling rollers, movement of the billets being imparted by an incoming billet driven by a ram 19. The latter is timed to move a billet from a loading station 27 into the furnace as the rollers reach the extreme uppermost position, and synchronised doors may be fitted at the tunnel ends. In a modification, Fig. 5 (not shown), the rollers 12 are replaced by refractory blocks suspended on pivoted arms and given continuous alternate vertical and horizontal movements after the manner of a walking- beam conveyer by a system of pivoted levers with horizontal rods mounted eccentrically at one end of the furnace on gear wheels disposed on opposite sides of a driven gear wheel.
GB31521/55A 1955-11-04 1955-11-04 Improvements in, or relating to, furnaces Expired GB854359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB31521/55A GB854359A (en) 1955-11-04 1955-11-04 Improvements in, or relating to, furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31521/55A GB854359A (en) 1955-11-04 1955-11-04 Improvements in, or relating to, furnaces

Publications (1)

Publication Number Publication Date
GB854359A true GB854359A (en) 1960-11-16

Family

ID=10324329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31521/55A Expired GB854359A (en) 1955-11-04 1955-11-04 Improvements in, or relating to, furnaces

Country Status (1)

Country Link
GB (1) GB854359A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034833A1 (en) * 1980-09-16 1982-03-25 Ludwig Riedhammer GmbH & Co KG, 8500 Nürnberg Furnace with roller track - has thrust rod on rotary cranes with pins engaging in end slots
EP0162013A2 (en) * 1984-05-18 1985-11-21 Schweizerische Aluminium Ag Warming-up furnace for cylindrical products
CN112762710A (en) * 2021-01-04 2021-05-07 晶澳太阳能有限公司 Solar cell sintering furnace belt
CN113683091A (en) * 2021-08-05 2021-11-23 新活力活性炭有限公司 Vertical multi-tube sintering electric furnace for producing activated carbon

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034833A1 (en) * 1980-09-16 1982-03-25 Ludwig Riedhammer GmbH & Co KG, 8500 Nürnberg Furnace with roller track - has thrust rod on rotary cranes with pins engaging in end slots
EP0162013A2 (en) * 1984-05-18 1985-11-21 Schweizerische Aluminium Ag Warming-up furnace for cylindrical products
EP0162013A3 (en) * 1984-05-18 1987-04-29 Schweizerische Aluminium Ag Warming-up furnace for cylindrical products
CN112762710A (en) * 2021-01-04 2021-05-07 晶澳太阳能有限公司 Solar cell sintering furnace belt
CN113683091A (en) * 2021-08-05 2021-11-23 新活力活性炭有限公司 Vertical multi-tube sintering electric furnace for producing activated carbon
CN113683091B (en) * 2021-08-05 2022-12-09 湖南时光钻石科技有限公司 Vertical multi-tube sintering electric furnace for producing activated carbon

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