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GB706318A - A method for the heat-treatment of materials in vertical shaft furnaces - Google Patents

A method for the heat-treatment of materials in vertical shaft furnaces

Info

Publication number
GB706318A
GB706318A GB234450A GB234450A GB706318A GB 706318 A GB706318 A GB 706318A GB 234450 A GB234450 A GB 234450A GB 234450 A GB234450 A GB 234450A GB 706318 A GB706318 A GB 706318A
Authority
GB
United Kingdom
Prior art keywords
treated
fuel
inert
heat
inert material
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
GB234450A
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
Priority to GB234450A priority Critical patent/GB706318A/en
Publication of GB706318A publication Critical patent/GB706318A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/10—Preheating, burning calcining or cooling
    • C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

In operating vertical shaft furnaces wherein a mixture of raw material, e.g. cement forming material, limestone or ore, solid fuel and inert material is charged from the top and passes down in counter-current to an ascending air blast through a reaction zone and cooling zone, and the treated material is removed at the bottom, the ratio between the fuel on the one hand and the treated material and inert material on the other hand is determined such that the heat capacity of the total amount of material is substantially equal to the heat capacity of the amount of air necessary for the complete combustion of the fuel, and the ratio between the material to be treated and the inert material is chosen such that the heat produced by the complete combustion of the solid fuel corresponds to the net heat requirement of the material to be treated. Already treated material is suitably used as inert material. The kilns disclosed in Specification 694,430, [Group V], may be used.ALSO:In operating vertical shaft furnaces wherein a mixture of raw material, e.g. cement-forming material, solid fuel and inert material is charged from the top and passes down in counter-current to an ascending air blast through a reaction zone and cooling zone, and the treated material is removed at the bottom, the ratio between the fuel on the one hand and the treated material and inert material on the other hand is determined such that the heat capacity of the total amount of material is substantially equal to the heat capacity of the amount of air necessary for the complete combustion of the fuel, and the ratio between the material to be treated and the inert material is chosen such that the heat produced by the complete combustion of the solid fuel corresponds to the net heat requirement of the material to be treated. Already treated material is suitably used as inert material. The kilns disclosed in Specification 694,430, may be used.
GB234450A 1950-01-30 1950-01-30 A method for the heat-treatment of materials in vertical shaft furnaces Expired GB706318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB234450A GB706318A (en) 1950-01-30 1950-01-30 A method for the heat-treatment of materials in vertical shaft furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB234450A GB706318A (en) 1950-01-30 1950-01-30 A method for the heat-treatment of materials in vertical shaft furnaces

Publications (1)

Publication Number Publication Date
GB706318A true GB706318A (en) 1954-03-31

Family

ID=9737892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB234450A Expired GB706318A (en) 1950-01-30 1950-01-30 A method for the heat-treatment of materials in vertical shaft furnaces

Country Status (1)

Country Link
GB (1) GB706318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600438A (en) * 1983-03-09 1986-07-15 Texas Industries, Inc. Co-production of cementitious products
WO1999036579A1 (en) * 1998-01-15 1999-07-22 Voest-Alpine Industrieanlagenbau Gmbh Method for producing hot metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600438A (en) * 1983-03-09 1986-07-15 Texas Industries, Inc. Co-production of cementitious products
WO1999036579A1 (en) * 1998-01-15 1999-07-22 Voest-Alpine Industrieanlagenbau Gmbh Method for producing hot metal

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