US919197A - Roasting-furnace. - Google Patents

Roasting-furnace. Download PDF

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Publication number
US919197A
US919197A US29644706A US1906296447A US919197A US 919197 A US919197 A US 919197A US 29644706 A US29644706 A US 29644706A US 1906296447 A US1906296447 A US 1906296447A US 919197 A US919197 A US 919197A
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US
United States
Prior art keywords
shaft
roasting
arms
pipe
furnace
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 - Lifetime
Application number
US29644706A
Inventor
William L Loveland
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.)
Allis Chalmers Corp
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Allis Chalmers Corp
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.)
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Publication date
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Priority to US29644706A priority Critical patent/US919197A/en
Application granted granted Critical
Publication of US919197A publication Critical patent/US919197A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/135—Movable heat exchanger
    • Y10S165/139—Fully rotatable
    • Y10S165/145—Radially extending hollow arm on rotating shaft traverses furnance shelf, e.g. rabble arm

Definitions

  • This invention relates to temperature control of a shaft.
  • rIhis invention has utility when applied to ore roasting furnaces and comprises a simple and effective means for maintaining a sufhciently low temperature in the arms that the arms are not weakened by the heat.
  • the hollow rotatable shaft 1 has a single compartment or passage extending longitudinally thereof.
  • the shaft l has also a plurality of lateral openings communicating with tapered hollow radiating arms 2.
  • shaft 1 and extendinglongitudinally thereof in its compartment is the pipe 3.
  • water may be introduced from pipe 4 into the pipe 3, conveyed to near one end of the shaft 1, and 'from thence pass into the compartment of the shaft 1 and freely circulate into the arms and along the compartment to the outlet pipe 5,
  • the hollow ⁇ rotatable shaft I having arms 2 serves to water jacket the inlet pipe 3.
  • ji second valve controlled outlet 6 for the compartment of the shaft 1, is shown at the opposite end of the compartment from the outlet pipe 5.
  • the pipe 3 through which the cooling water is admitted to the interior of the shaft is extended well down within the recess 8 of the lowermost section of the shaft, and the water discharging downwardly through said pipe will first abstract the heat in this lower section which has resulted from the friction of the shaft upon the bearing.
  • the upper recess of the shaft section which forms the stop bearing is narrowed in its lower portion so as to provide for a narrow channel at the outlet pipe 3 and surrounding saine and this narrow channel is at the lowest point of the chamber within the hollow shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

W. L. LOVBLAND ROASTING PURNAGE.
APPLICATION FILED 31111.17, 190e.
n. N H m T A Patented Apr. 20, 1909.
R m tv..
i? grilli',r1.1,11111,111,111,1'1111111111 l W/7NE55E5.-
UNITED STATES PATENT OEEC.
WILLIAM L. LOVELAND, OF MILWAUKEE, WISCONSIN, ASSIGN OR TO ALLIS-CHALMERS COM- PANY, or
MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.
ROASTING-FURNACE To all whom 'it may concern:
Be it known that I, WiLLrAM L. Lovn` LAND, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Roasting-Furnaces, of which the following is a specification.
This invention relates to temperature control of a shaft.
rIhis invention has utility when applied to ore roasting furnaces and comprises a simple and effective means for maintaining a sufhciently low temperature in the arms that the arms are not weakened by the heat.
Yeferring to the drawing, the hollow rotatable shaft 1 has a single compartment or passage extending longitudinally thereof. The shaft l has also a plurality of lateral openings communicating with tapered hollow radiating arms 2. shaft 1 and extendinglongitudinally thereof in its compartment is the pipe 3. In the event that water is used as the temperature controlling medium, it may be introduced from pipe 4 into the pipe 3, conveyed to near one end of the shaft 1, and 'from thence pass into the compartment of the shaft 1 and freely circulate into the arms and along the compartment to the outlet pipe 5, The hollow `rotatable shaft I having arms 2, serves to water jacket the inlet pipe 3. ji second valve controlled outlet 6 for the compartment of the shaft 1, is shown at the opposite end of the compartment from the outlet pipe 5.
It is customary to support the stirring arms and shaft in the type of apparatus disclosed by this specication upon a step bearing, and as the shaft and arms especially when full of water are of considerable weight, a great deal of heat is developed at the step caring.
As shown by the drawings, the shaft is Specification of Letters Patent.
Application led January 17, 1906.
Concentric with the' Patented April 20, 1909.
Serial No. 296,447.
cast in sections, a separate section being provided for the step bearing, the lower part of this section being recessed at 7 to receive the bearing pin. The upper part of this member is also recessed, as at 8, the two recesses approaching each other closely but leaving a sufficient thickness of metal at Q to support the weight of the shaft and arms, even when full of water.
The pipe 3 through which the cooling water is admitted to the interior of the shaft is extended well down within the recess 8 of the lowermost section of the shaft, and the water discharging downwardly through said pipe will first abstract the heat in this lower section which has resulted from the friction of the shaft upon the bearing.
The upper recess of the shaft section which forms the stop bearing is narrowed in its lower portion so as to provide for a narrow channel at the outlet pipe 3 and surrounding saine and this narrow channel is at the lowest point of the chamber within the hollow shaft. The effect of such construction is to entirely obviate any clogging at this point and all sediment tending to form will be speedily washed away and the channel kept open for eflicient circulation.
That is claimed and it is desired to secure by Letters Patent is:
A hollow sectional shaft, arms on the shaft, one of said sections forming a step bearing and being recessed and said recess being narrowed in its lower portion, and means for supplying water to said shaft and for discharging same within the narrow portion of said recess.
In testimony whereof I affix my signature in presence of two witnesses.
WILLIAM L. LOVELAND. Vllitnesses G. E DE WEIN, GEO. E. KIRK.
US29644706A 1906-01-17 1906-01-17 Roasting-furnace. Expired - Lifetime US919197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29644706A US919197A (en) 1906-01-17 1906-01-17 Roasting-furnace.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29644706A US919197A (en) 1906-01-17 1906-01-17 Roasting-furnace.

Publications (1)

Publication Number Publication Date
US919197A true US919197A (en) 1909-04-20

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US29644706A Expired - Lifetime US919197A (en) 1906-01-17 1906-01-17 Roasting-furnace.

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