US3601380A - Tower furnace and feed - Google Patents

Tower furnace and feed Download PDF

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Publication number
US3601380A
US3601380A US832197A US3601380DA US3601380A US 3601380 A US3601380 A US 3601380A US 832197 A US832197 A US 832197A US 3601380D A US3601380D A US 3601380DA US 3601380 A US3601380 A US 3601380A
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US
United States
Prior art keywords
furnace
particles
roller
feed
indentations
Prior art date
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Expired - Lifetime
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US832197A
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English (en)
Inventor
Ernst A Siemssen
John M Hummel
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Selas Corp of America
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Selas Corp of America
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Publication date
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Publication of US3601380A publication Critical patent/US3601380A/en
Assigned to FIRST PENNSYLVANIA BANK N A, A NATIONAL BANKING ASSOCIATION reassignment FIRST PENNSYLVANIA BANK N A, A NATIONAL BANKING ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SELAS CORPORATION OF AMERICA A CORP OF PA
Assigned to SELAS CORPORATION OF AMERICA A CORP. OF PA reassignment SELAS CORPORATION OF AMERICA A CORP. OF PA RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: FIRST PENNSYLVANIA BANK N.V., FOR ITSELF AND AS AGENT FOR THE PHILADELPHIA NATIONAL BANK
Assigned to BANCBOSTON FINANCIAL COMPANY reassignment BANCBOSTON FINANCIAL COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SELAS CORPORATION OF AMERICA
Anticipated expiration legal-status Critical
Assigned to SELAS CORPORATION OF AMERICA reassignment SELAS CORPORATION OF AMERICA RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BANCBOSTON FINANACIAL COMPANY A MA TRUST
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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces

Definitions

  • ABSTRACT Means to supply clay particles to fall through a tower furnace comprising a rotating drum having particle- References cued receiving indentations on its surface. As the drum is rotated, UNITED STATES PATENTS particles are picked up by it and dropped vertically in a sub- 1,307,349 6/1919 Draver 222/368 stantially constant stream into and through the furnace.
  • FIG. 1 A first figure.
  • the present invention relates to tower furnaces, and is more particularly directed to the combination of such a furnace and a feed mechanism for supplying particles to be bloated to such a furnace.
  • a supply of particles usually clay with a small amount of abloating agent, that is moved over a fluidized bed to remove dust and, if desired, to preheat them.
  • the particles are then directed through a chute to the surface of a horizontally rotating feed roll having indentations on its surface. As the roll rotates it moves the particles to the desired location above the furnace and drops them into the furnace where they are fused.
  • FIG. 1 is a view, partly in section, through the furnace and the mechanism for feeding material to the furnace.
  • FIG. 2 is a view taken on line 2--2 of FIG. 1.
  • FIG. 3 is a view taken on line.33 ofFlG. 2, and
  • FIGS. 4 and- 5 show feed rollers with different types of indentations.
  • a furnace of this type includes an unobstructed, vertically extending, furnace chamber 6 that is fired by a plurality of rows of burners 7 which supply the heat necessary to fuse and bloat the particles.
  • the particles are collected in a manner explained in US. Pat. No. 3,056,] 84 on a belt 8 by which they are moved from the furnace through a suitable annealing apparatus.
  • a parting agent on the belt upon which the bloated particles are collected.
  • This parting agent is supplied from a hopper 9. It is noted that the fluidized bed serves in the usual fashion of apparatUs of this type, to float the particles across its surface and, in so doing, the dust from the particles is removed so that it will not cloud the furnace chamber. Fluidizing air, which may be heated to preheat the particles, is supplied through an inlet 11 and the exhaust air is removed through an outlet 12.
  • the feed mechanism 4 with which the invention is particularly concerned is located in a housing 13 fixed to the top of the furnace. Chute 3 forms the inlet of the housing, while the outlet is formed by a portion 14 extending vertically downward over the center of the furnace. Particles are fed in a regulated manner from the inlet to the outlet by a hollow feed roller 15 that is provided with hollow shafts 16 journaled in bearings 17 formed as a part of or attached to housing 13. Outlet 14 extends at a tangent to the surface of the feed roller.
  • the feed roller is driven in a clockwise direction in FIG. 3 by a motor 18. Cooling air is forced through roller 15 by way of shafts l6.
  • Feed roller 15 is provided on its surface with a plurality of indentations which receive the particles from inlet 3 and transfer them to outlet 14.
  • the roller of FIGS. 2 and 3 is shown as having indentations in the form of axially extending grooves 19 on the surface. Particles descending from fluidized particles received by each groove 19 being regulated by a doctor blade 22. It will be noted that the angle of repose of the particles below baffle 21, shown at 23, is to the right of a vertical plane through the axis'of roller 15. If any small amount of particles should fall to the left of the roller, they will go into a cleanout opening 24.
  • the object of feed roller 15 is to deliver a constant and uniform supply of particles vertically downward in a thin sheet to the furnace.
  • the width of this sheet or the axial extent of roller 15 that is used can be varied by members 25 that can be moved inwardly from the sides of housing 13 along the lower edge of baffle2l.
  • a movable shield can be used between the housing 13 and the furnace in order to prevent heating of the feed mechanism while the furnace is being heated up prior to the beginning of the feed of the particles.
  • the indentations on the surface of feed roller 15 can take several forms.
  • the indentations in FIGS. 2 and 3 are shown as being grooves 19 extending in an axial .directionon the surface of the roller.
  • the grooves 26 are shown as extending helically along the surface of the roller.
  • the indentations are shown as being a series of cup-shaped depressions 27 formed on the surface of the drums.
  • particles are delivered in a substantially constant supply, generally in the form ofa sheet, which permits heat to be absorbed individually by the particles so that the bloating thereof will be uniform. Because of the manner in which the particles are dropped, a slabformed therefrom will have substantially uniform thickness from side to side. The thickness of such a slab for a given roller length will, of course, depend jointly upon the speed of rotation of roller 15 and the speed of collecting belt 8.
  • a tower furnace system means to supply particles to be heated, a tower furnace having an unobstructed chamber through which particles are dropped in a free fall, and means between said supply means and said furnace to control the feed of particles into said furnace comprising an outlet portion above and extending directly into said furnace chamber, a feed roller mounted above and with its periphery tangent to inlet portion extending from said supply means to above said roller, said roller being formed with particle receiving indentations on its surface, and means to rotate said roller whereby particles placed on its surface by said inlet portion will be delivered through said outlet portion directly to said furnace chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Tunnel Furnaces (AREA)
US832197A 1969-06-11 1969-06-11 Tower furnace and feed Expired - Lifetime US3601380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83219769A 1969-06-11 1969-06-11

Publications (1)

Publication Number Publication Date
US3601380A true US3601380A (en) 1971-08-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US832197A Expired - Lifetime US3601380A (en) 1969-06-11 1969-06-11 Tower furnace and feed

Country Status (5)

Country Link
US (1) US3601380A (enrdf_load_stackoverflow)
BE (1) BE750958A (enrdf_load_stackoverflow)
CA (1) CA947069A (enrdf_load_stackoverflow)
FR (1) FR2052408A5 (enrdf_load_stackoverflow)
GB (1) GB1251769A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732071A (en) * 1971-12-17 1973-05-08 Dow Chemical Co Tower furnace

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307349A (en) * 1919-06-24 Feed-beguiator
US1402184A (en) * 1916-07-15 1922-01-03 Arnold F Sinclair Feeding apparatus for pulverized material
US1519928A (en) * 1924-03-18 1924-12-16 Priesnitz Joseph Seed dispenser
US1618011A (en) * 1924-11-21 1927-02-15 Universal Incinerator Corp Charging apparatus for furnaces and the like
US2113015A (en) * 1934-01-09 1938-04-05 Koppers Co Inc Feeding arrangement for gas producers
US2278948A (en) * 1939-03-22 1942-04-07 Prismo Holding Corp Surface marking apparatus
US2906438A (en) * 1957-06-05 1959-09-29 Ernest L Carpenter Self-propelled dispensing and spreading unit and compacter
US2907444A (en) * 1956-12-17 1959-10-06 Ici Ltd Rotary apparatus for conveying solid particles
US3072301A (en) * 1959-04-03 1963-01-08 Richardson Corp Rotary feeder for bulk material
GB934073A (en) * 1961-04-26 1963-08-14 Yorkshire Engineering & Weldin Rotary valve or distributor device for powdered or pulverulent materials
US3131821A (en) * 1961-09-27 1964-05-05 Yawata Iron & Steel Co Raw material charging device in the top part of a blast furnace

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1307349A (en) * 1919-06-24 Feed-beguiator
US1402184A (en) * 1916-07-15 1922-01-03 Arnold F Sinclair Feeding apparatus for pulverized material
US1519928A (en) * 1924-03-18 1924-12-16 Priesnitz Joseph Seed dispenser
US1618011A (en) * 1924-11-21 1927-02-15 Universal Incinerator Corp Charging apparatus for furnaces and the like
US2113015A (en) * 1934-01-09 1938-04-05 Koppers Co Inc Feeding arrangement for gas producers
US2278948A (en) * 1939-03-22 1942-04-07 Prismo Holding Corp Surface marking apparatus
US2907444A (en) * 1956-12-17 1959-10-06 Ici Ltd Rotary apparatus for conveying solid particles
US2906438A (en) * 1957-06-05 1959-09-29 Ernest L Carpenter Self-propelled dispensing and spreading unit and compacter
US3072301A (en) * 1959-04-03 1963-01-08 Richardson Corp Rotary feeder for bulk material
GB934073A (en) * 1961-04-26 1963-08-14 Yorkshire Engineering & Weldin Rotary valve or distributor device for powdered or pulverulent materials
US3131821A (en) * 1961-09-27 1964-05-05 Yawata Iron & Steel Co Raw material charging device in the top part of a blast furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732071A (en) * 1971-12-17 1973-05-08 Dow Chemical Co Tower furnace

Also Published As

Publication number Publication date
DE2028585B2 (de) 1972-10-19
FR2052408A5 (enrdf_load_stackoverflow) 1971-04-09
DE2028585A1 (enrdf_load_stackoverflow) 1970-12-17
GB1251769A (enrdf_load_stackoverflow) 1971-10-27
BE750958A (fr) 1970-11-26
CA947069A (en) 1974-05-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FIRST PENNSYLVANIA BANK N A 19TH FL.CENTRE SQ WEST

Free format text: SECURITY INTEREST;ASSIGNOR:SELAS CORPORATION OF AMERICA A CORP OF PA;REEL/FRAME:003997/0981

Effective date: 19820217

AS Assignment

Owner name: SELAS CORPORATION OF AMERICA A CORP. OF PA

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST PENNSYLVANIA BANK N.V., FOR ITSELF AND AS AGENT FOR THE PHILADELPHIA NATIONAL BANK;REEL/FRAME:004096/0520

Effective date: 19821231

AS Assignment

Owner name: BANCBOSTON FINANCIAL COMPANY,MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:SELAS CORPORATION OF AMERICA;REEL/FRAME:004557/0143

Effective date: 19860529

Owner name: BANCBOSTON FINANCIAL COMPANY, 100 FEDERAL STREET,

Free format text: SECURITY INTEREST;ASSIGNOR:SELAS CORPORATION OF AMERICA;REEL/FRAME:004557/0143

Effective date: 19860529

AS Assignment

Owner name: SELAS CORPORATION OF AMERICA, PENNSYLVANIA

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANCBOSTON FINANACIAL COMPANY A MA TRUST;REEL/FRAME:004945/0988

Effective date: 19880805

Owner name: SELAS CORPORATION OF AMERICA, DRESHER, PA 19025 A

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANCBOSTON FINANACIAL COMPANY A MA TRUST;REEL/FRAME:004945/0988

Effective date: 19880805