US729009A - Process of roasting ores. - Google Patents

Process of roasting ores. Download PDF

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Publication number
US729009A
US729009A US132934A US1902132934A US729009A US 729009 A US729009 A US 729009A US 132934 A US132934 A US 132934A US 1902132934 A US1902132934 A US 1902132934A US 729009 A US729009 A US 729009A
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ore
roasting
pipe
air
roaster
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US132934A
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Henry M Sutton
Walter L Steele
Edwin G Steele
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Priority claimed from US11402102A external-priority patent/US729008A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/65—Processes of preheating prior to molding

Definitions

  • This invention relates to a'process for roasting ores, and particularly to a process wherein the ore is conveyed by an air-blast to and through a roasting-chamber, as shown in application filed July 1, 1902, Serial No. 114,021, of which this case is a division.
  • the invention has for an object to provide a process of roasting ore in which the ore is suspended in a current of air moving in a r0- zo tary path, whereby each particle thereof 13 at all times entirely surrounded by the air, thus producing strong oxidizing conditions to prevent the fusing of the more readily fusible constituents of the ore and secure improved :5 results in the concentration thereof.
  • ' -A further object of the process is to cause the ore to be carried spirally in a centrifugal path through a roasting-chamber by .the reduction of the air-pressure and heating the 0 ore during this movement.
  • Figure 1 is a perspective of an ore-roasting apparatus for carrying out this process.
  • Fig. 2 is a central vertical section through the roasting-chamber;
  • Fig. 3 a horizontal section thereof on the line 3 3 of Fig. 2, and
  • Fig. 4 an elevation illustrating a series of roasting chambers for producing successive roasts of the ore in accordance with this process.
  • the letter A designates a roasting-chamber,preferably of a circular conical formation, as herein disclosed, and connected to which is a feed-pipe) through which the ore to be treated is fed into the roaster by means of a fan B or other suitable blast device, and
  • roaster A which pipe is provided with a feed-hopper B from which the ore is fed by the rotatable feeder B of any desired construction to feed the ore to the furnace in predetermined quantities.
  • the roaster A is also provided at its upper portion with an air and gas outlet 0, which may be carried to any suitable dustcollector or to a reduction apparatus, if it is desirable to save the fumes caused by the combustion of the ore.
  • an air or steam pipe D and an oil-pipe D are extended to feed the fuel to the burners Dilocated at the tangentially-disposed openings A in the roaster A, and by this means the necessary pressure is obtained to atomize the oil and produce the centrifugal movement within the roaster.
  • Suitable regulatingvalves D and D are provided upon the steam and oil pipes, respectively.
  • a discharge-opening A is provided,and beneath the same a suitable receptacle E, communicating with the discharge-pipe E, into which a suction of cold air is drawn by means of the fan E the amount of this suction being regulated by the sliding sleeve E carried by the discharge from the roaster.
  • This sleeve is adapted to be secured at any position by means of the clamp-screw E
  • the ore after passing into the pipe E is taken up at once by the suction from the fan E and blown or blasted through the pipe E, which may be of any desired lengthfor instance, one hundred feet or more-to thoroughly cool the ore while it is being conveyed to the point desired.
  • This cooling-pipe communicates at its opposite end tangentially with a separator F, preferably provided with a conical lower portion F, havinga dischargespout F disposed above a suitable receptacle F while the pressure of air is permitted to escape through the pipe F at the upper portion of the separator.
  • This pipe F may be 95 extended to a dust-collector, if it is desirable to save any of the extremely fine material which may escape with the expanding air.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Description

PATENTED MAY 26, 1903. H. M. SUTTON & W. L. & E. G. STEELE.
PROCESS OF ROASTING ORES.
APPLICATION FILED NOV. 26, 1902. I
PV/YWESS Alla/11a y HENRY M. sUTToN', WALTER L. STEELE, AND EDWiN' e. STEELE, OF DALLAS, TEXAS.
PROCESS OF ROASTING ORES.
SPECIFICATION forming part of Letters Patent No. 729,009, dated May 26, 1903.
Original application filed July 1, 1902, Serial No. 114,021. Divided and this application filed November 26. 1902. Serial Ila-132,984. (No specimens.)
To all whom it may concern:
Be it known' that we, HENRY M. SUTTON, WALTER L. STEELE, and EDWIN G. STEELE, citizens of the United States, residing at Dallas, in the county of Dallas, State'of Texas,
have invented certain new and useful Improvements in Processes of Roasting Ores, of which the following is a specification, reference being bad therein to the accompanying IO drawings.
.This invention relates to a'process for roasting ores, and particularly to a process wherein the ore is conveyed by an air-blast to and through a roasting-chamber, as shown in application filed July 1, 1902, Serial No. 114,021, of which this case is a division. The invention has for an object to provide a process of roasting ore in which the ore is suspended in a current of air moving in a r0- zo tary path, whereby each particle thereof 13 at all times entirely surrounded by the air, thus producing strong oxidizing conditions to prevent the fusing of the more readily fusible constituents of the ore and secure improved :5 results in the concentration thereof.
' -A further object of the process is to cause the ore to be carried spirally in a centrifugal path through a roasting-chamber by .the reduction of the air-pressure and heating the 0 ore during this movement.
Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.
In the drawings, Figure 1 is a perspective of an ore-roasting apparatus for carrying out this process. Fig. 2 is a central vertical section through the roasting-chamber; Fig. 3, a horizontal section thereof on the line 3 3 of Fig. 2, and Fig. 4 an elevation illustrating a series of roasting chambers for producing successive roasts of the ore in accordance with this process.
In the drawings, which illustrate one form of the apparatus for carrying this process into effect, like letters of reference refer to like parts in the several figures.
The letter A designates a roasting-chamber,preferably of a circular conical formation, as herein disclosed, and connected to which is a feed-pipe) through which the ore to be treated is fed into the roaster by means of a fan B or other suitable blast device, and
' which pipe is provided with a feed-hopper B from which the ore is fed by the rotatable feeder B of any desired construction to feed the ore to the furnace in predetermined quantities. The roaster A is also provided at its upper portion with an air and gas outlet 0, which may be carried to any suitable dustcollector or to a reduction apparatus, if it is desirable to save the fumes caused by the combustion of the ore. At the sides of the roaster an air or steam pipe D and an oil-pipe D are extended to feed the fuel to the burners Dilocated at the tangentially-disposed openings A in the roaster A, and by this means the necessary pressure is obtained to atomize the oil and produce the centrifugal movement within the roaster. Suitable regulatingvalves D and D are provided upon the steam and oil pipes, respectively. At the lower portion of the roaster a discharge-opening A is provided,and beneath the same a suitable receptacle E, communicating with the discharge-pipe E, into which a suction of cold air is drawn by means of the fan E the amount of this suction being regulated by the sliding sleeve E carried by the discharge from the roaster. This sleeve is adapted to be secured at any position by means of the clamp-screw E The ore after passing into the pipe E is taken up at once by the suction from the fan E and blown or blasted through the pipe E, which may be of any desired lengthfor instance, one hundred feet or more-to thoroughly cool the ore while it is being conveyed to the point desired. This cooling-pipe communicates at its opposite end tangentially with a separator F, preferably provided with a conical lower portion F, havinga dischargespout F disposed above a suitable receptacle F while the pressure of air is permitted to escape through the pipe F at the upper portion of the separator. This pipe F may be 95 extended to a dust-collector, if it is desirable to save any of the extremely fine material which may escape with the expanding air.
In the form of apparatus shown in Fig. 4a
similar process is eifected in the successive too No. 729,010. PATENTED MAY 26, 1903.
' P. SYNNBSTVEDT.
VEHICLE DRIVING MEGHANIS M.
APPLICATION FILED OUT. 15, 1900.
H0 MODEL.
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US132934A 1902-07-01 1902-11-26 Process of roasting ores. Expired - Lifetime US729009A (en)

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US132934A US729009A (en) 1902-07-01 1902-11-26 Process of roasting ores.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11402102A US729008A (en) 1902-07-01 1902-07-01 Ore-roaster.
US132934A US729009A (en) 1902-07-01 1902-11-26 Process of roasting ores.

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441613A (en) * 1943-01-04 1948-05-18 Balassa Ladislaus Method and apparatus for pulverizing and processing materials
US2451582A (en) * 1941-09-09 1948-10-19 American Rock Wool Corp Apparatus for producing mineral wool
US2486346A (en) * 1945-02-21 1949-10-25 Rca Corp Apparatus for plasticating thermoplastic materials
US2501962A (en) * 1947-05-16 1950-03-28 Pierce Harold Ladd Process for expanding earth materials
US2530077A (en) * 1948-02-11 1950-11-14 Frederick C Ramsing Metallurgical furnace
US2648532A (en) * 1951-10-20 1953-08-11 Kloeckner Humboldt Deutz Ag Heating apparatus for processing fine-granular material
US2659587A (en) * 1951-01-11 1953-11-17 Bowen William Spencer Calcining apparatus
US2663561A (en) * 1950-12-13 1953-12-22 Kloeckner Humboldt Deutz Ag Apparatus for heating fine-grained material, particularly cement raw material
US2663560A (en) * 1951-12-07 1953-12-22 Kloeckner Humboldt Deutz Ag Heat processing of fine-grained material, particularly cement raw material
US2721788A (en) * 1950-08-25 1955-10-25 Gen Electric Decomposition of hydrogen peroxide
DE950905C (en) * 1952-03-07 1956-10-18 Walter Kittel Dipl Ing Device for generating directed, symmetrical to the vertical axis rotational currents in gases, vapors and liquids
DE967855C (en) * 1952-01-25 1957-12-19 Ruhrgas Ag Method and device for carrying out chemical reactions between grained or dust-like material and gases
US2830769A (en) * 1953-05-18 1958-04-15 Texaco Development Corp Method and apparatus for treating a solid material
DE971232C (en) * 1948-12-09 1959-01-29 Zieren Chemiebau Gmbh Dr A Process and device for roasting fine-grain sulfidic ores in the fluidized bed
US2890929A (en) * 1954-12-31 1959-06-16 Hoechst Ag Process for carrying out exothermic chemical reactions
US2942043A (en) * 1955-01-03 1960-06-21 Hoechst Ag Process for carrying out endothermic chemical reactions
US2978316A (en) * 1953-09-14 1961-04-04 Weir Horace Mccolloch Production of elements and compounds by continuous vapor plating of particles
DE976078C (en) * 1950-12-12 1963-02-14 Kloeckner Humboldt Deutz Ag Device for heating cement raw meal
DE1183422B (en) * 1962-10-18 1964-12-10 Kloeckner Humboldt Deutz Ag Device for heating fine-grained substances, especially cement raw meal
DE1212846B (en) * 1961-10-12 1966-03-17 Rheinstahl Ind Planung G M B H Device for the treatment of dusty material, in particular lime dust, cement raw meal or the like.
US3336020A (en) * 1964-10-23 1967-08-15 Koppers Co Inc Furnace for heating scrap metal
US3584848A (en) * 1969-05-21 1971-06-15 Union Carbide Corp Method and apparatus for producing cement clinker
US3739481A (en) * 1970-06-15 1973-06-19 Ceskoslovenska Akademie Ved Method and an arrangement for drying of dispersions by atomizing
US3752455A (en) * 1969-08-21 1973-08-14 Prerovske Strojirny Np Arrangement for burning of pulverulent and fine grain material
US3834860A (en) * 1972-03-08 1974-09-10 Onoda Cement Co Ltd Apparatus for heating and calcining of powder and/or pulverized materials
US20160054061A1 (en) * 2013-04-10 2016-02-25 Josef Keuschnigg Combustion device

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451582A (en) * 1941-09-09 1948-10-19 American Rock Wool Corp Apparatus for producing mineral wool
US2441613A (en) * 1943-01-04 1948-05-18 Balassa Ladislaus Method and apparatus for pulverizing and processing materials
US2486346A (en) * 1945-02-21 1949-10-25 Rca Corp Apparatus for plasticating thermoplastic materials
US2501962A (en) * 1947-05-16 1950-03-28 Pierce Harold Ladd Process for expanding earth materials
US2530077A (en) * 1948-02-11 1950-11-14 Frederick C Ramsing Metallurgical furnace
DE971232C (en) * 1948-12-09 1959-01-29 Zieren Chemiebau Gmbh Dr A Process and device for roasting fine-grain sulfidic ores in the fluidized bed
US2721788A (en) * 1950-08-25 1955-10-25 Gen Electric Decomposition of hydrogen peroxide
DE976078C (en) * 1950-12-12 1963-02-14 Kloeckner Humboldt Deutz Ag Device for heating cement raw meal
US2663561A (en) * 1950-12-13 1953-12-22 Kloeckner Humboldt Deutz Ag Apparatus for heating fine-grained material, particularly cement raw material
US2659587A (en) * 1951-01-11 1953-11-17 Bowen William Spencer Calcining apparatus
US2648532A (en) * 1951-10-20 1953-08-11 Kloeckner Humboldt Deutz Ag Heating apparatus for processing fine-granular material
US2663560A (en) * 1951-12-07 1953-12-22 Kloeckner Humboldt Deutz Ag Heat processing of fine-grained material, particularly cement raw material
DE967855C (en) * 1952-01-25 1957-12-19 Ruhrgas Ag Method and device for carrying out chemical reactions between grained or dust-like material and gases
DE950905C (en) * 1952-03-07 1956-10-18 Walter Kittel Dipl Ing Device for generating directed, symmetrical to the vertical axis rotational currents in gases, vapors and liquids
US2830769A (en) * 1953-05-18 1958-04-15 Texaco Development Corp Method and apparatus for treating a solid material
US2978316A (en) * 1953-09-14 1961-04-04 Weir Horace Mccolloch Production of elements and compounds by continuous vapor plating of particles
US2890929A (en) * 1954-12-31 1959-06-16 Hoechst Ag Process for carrying out exothermic chemical reactions
US2942043A (en) * 1955-01-03 1960-06-21 Hoechst Ag Process for carrying out endothermic chemical reactions
DE1212846B (en) * 1961-10-12 1966-03-17 Rheinstahl Ind Planung G M B H Device for the treatment of dusty material, in particular lime dust, cement raw meal or the like.
DE1183422B (en) * 1962-10-18 1964-12-10 Kloeckner Humboldt Deutz Ag Device for heating fine-grained substances, especially cement raw meal
US3336020A (en) * 1964-10-23 1967-08-15 Koppers Co Inc Furnace for heating scrap metal
US3584848A (en) * 1969-05-21 1971-06-15 Union Carbide Corp Method and apparatus for producing cement clinker
US3752455A (en) * 1969-08-21 1973-08-14 Prerovske Strojirny Np Arrangement for burning of pulverulent and fine grain material
US3739481A (en) * 1970-06-15 1973-06-19 Ceskoslovenska Akademie Ved Method and an arrangement for drying of dispersions by atomizing
US3834860A (en) * 1972-03-08 1974-09-10 Onoda Cement Co Ltd Apparatus for heating and calcining of powder and/or pulverized materials
US20160054061A1 (en) * 2013-04-10 2016-02-25 Josef Keuschnigg Combustion device

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