GB393293A - Improvements in ovens for drying materials or for other heat treatment - Google Patents

Improvements in ovens for drying materials or for other heat treatment

Info

Publication number
GB393293A
GB393293A GB32971/31A GB3297131A GB393293A GB 393293 A GB393293 A GB 393293A GB 32971/31 A GB32971/31 A GB 32971/31A GB 3297131 A GB3297131 A GB 3297131A GB 393293 A GB393293 A GB 393293A
Authority
GB
United Kingdom
Prior art keywords
tube
heating
tubes
gases
outer tube
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
GB32971/31A
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 GB393293A publication Critical patent/GB393293A/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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
    • F27B7/04—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
    • F27B7/04—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions
    • F27B2007/043—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions the partition being a cylinder, coaxial to the rotary drum, defining two chambers
    • F27B2007/045—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions the partition being a cylinder, coaxial to the rotary drum, defining two chambers the charge going in one direction in one chamber, then after a turn coming back in the other direction in the other chamber
    • 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
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/02—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type
    • F27B7/04—Rotary-drum furnaces, i.e. horizontal or slightly inclined of multiple-chamber or multiple-drum type with longitudinal divisions
    • F27B2007/046—Radial partitions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

393,293. Rotary furnaces. BOURDET, A. P. E., 57, Grande Rue, Triel-sur- Seine, Seine-et-Oise, France. Nov. 27, 1931, No. 32971. Convention date, Nov. 28, 1930. Addition to 359,900. [Classes 51 (ii) and 55 (i).] The furnace described in the parent Specification is modified by mounting the two heating- tubes one within the other, or by making one or both of the tubes in this form. The material may be fed first into the inner or the outer tube, and in the latter case, at the delivery end of the outer tube, the material is raised to feed it into the inner one by an external elevator or, as shown in Fig. 3, by vanes t<2>, which discharge the material on to a guide cone t<3>. The heating arrangements are such that the gases and the material flow in parallel through the tube into which the material is first delivered, and in counter current through the outer tube. In the furnace of the Figure, which is more particularly adapted for the partial distillation of wood, gases are withdrawn from the stack by a fan and returned through a pipe w to the final heating-tube. Sand, powdered gypsum, or other inert material may be mixed with the charge to prevent active combustion and this added material is screened off through openings x at the discharge end of the inner tube and returned to the feed end of the outer one. In the form of the invention in which each of the heating tubes consists of two concentric tubes, the materials and heating gases flow in parallel through both parts of the first double tube, and in counter-current through both parts of the second. Specification 380,830 is referred to.
GB32971/31A 1930-11-28 1931-11-27 Improvements in ovens for drying materials or for other heat treatment Expired GB393293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE393293X 1930-11-28

Publications (1)

Publication Number Publication Date
GB393293A true GB393293A (en) 1933-05-29

Family

ID=3868925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32971/31A Expired GB393293A (en) 1930-11-28 1931-11-27 Improvements in ovens for drying materials or for other heat treatment

Country Status (1)

Country Link
GB (1) GB393293A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518726A1 (en) * 1981-12-22 1983-06-24 Monterde A Talleres ROTARY OVEN FOR THE MANUFACTURE OF PLASTERS
ES2190698A1 (en) * 2000-06-12 2003-08-01 Duran Gloria Maria Tortola Gypsum and stucco direct fired intermittent action kiln consists of two concentric intercommunicating metal tubes serving the combustion chamber and the kiln
ES2244354A1 (en) * 2005-03-18 2005-12-01 Gloria M. Tortola Duran Indirect combustion dehydrator, for e.g. gypsum fabrication material, includes concentric chambers for simultaneous two-stage drying based on combustion gas heat
EP3667220A1 (en) * 2018-12-10 2020-06-17 Iin Konepaja Ltd Conversion furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518726A1 (en) * 1981-12-22 1983-06-24 Monterde A Talleres ROTARY OVEN FOR THE MANUFACTURE OF PLASTERS
ES2190698A1 (en) * 2000-06-12 2003-08-01 Duran Gloria Maria Tortola Gypsum and stucco direct fired intermittent action kiln consists of two concentric intercommunicating metal tubes serving the combustion chamber and the kiln
ES2244354A1 (en) * 2005-03-18 2005-12-01 Gloria M. Tortola Duran Indirect combustion dehydrator, for e.g. gypsum fabrication material, includes concentric chambers for simultaneous two-stage drying based on combustion gas heat
EP3667220A1 (en) * 2018-12-10 2020-06-17 Iin Konepaja Ltd Conversion furnace

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