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GB1428828A - Apparatus for example for burning the powdered materials for making cement - Google Patents

Apparatus for example for burning the powdered materials for making cement

Info

Publication number
GB1428828A
GB1428828A GB2379973A GB2379973A GB1428828A GB 1428828 A GB1428828 A GB 1428828A GB 2379973 A GB2379973 A GB 2379973A GB 2379973 A GB2379973 A GB 2379973A GB 1428828 A GB1428828 A GB 1428828A
Authority
GB
United Kingdom
Prior art keywords
duct
furnace
air
fed
kiln
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
GB2379973A
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.)
IHI Corp
Original Assignee
IHI 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.)
Filing date
Publication date
Priority claimed from JP5898572U external-priority patent/JPS5143225Y2/ja
Priority claimed from JP9955272A external-priority patent/JPS5240328B2/ja
Priority claimed from JP503273A external-priority patent/JPS523739B2/ja
Application filed by IHI Corp filed Critical IHI Corp
Publication of GB1428828A publication Critical patent/GB1428828A/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
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2016—Arrangements of preheating devices for the charge
    • F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
    • F27B7/2033—Arrangements of preheating devices for the charge consisting of a single string of cyclones with means for precalcining the raw material
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/432—Preheating without addition of fuel
    • 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
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/434—Preheating with addition of fuel, e.g. calcining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Details (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

1428828 Rotary kilns ISHIKAWAJIMAHARIMA JUKOGYO KK 18 May 1973 [20 May 1972 4 Oct 1972 8 Jan 1973] 23799/73 Heading F4B Apparatus for burning powdered materials, e.g. for making cement, comprises a rotary kiln 16, Fig. 4, a furnace 1 for calcining the powdered materials prior to their being fed to the kiln, and a duct 15, for providing hot combustion air to the furnace 1 fed from the exhaust gas duct of the kiln and a second duct 6 supplying combustion air to the furnace, the exhaust gas duct 15 opening into the duct 6 through a throat 25, Fig. 3, controlling the rate of flow of exhaust gas. Duct 6 has a damper 27 controlling the amount of air. The air in duct 6 normally comes from a clinker cooler 18, but an ambient air inlet 29 is also provided normally closed by a damper 28. The calcining furnace Fig. 1 is fed with combustion air through duct 6 and has three separately adjustable burners 2, 3, 4 in the top. Raw meal is fed into the furnace at 5 and the shape of the furnace is such that the meal follows a swirling path in the flame of the burners before leaving in a calcined state through the outlet 7. It then passes through a separator 11 to the inlet end of the kiln. Raw meal passes to the furnace through suspension preheaters being fed at 19 into duct 12 and carried to cyclone 8 which feeds it into duct 13, thence to cyclone 9, duet 14, and cyclone 10 to the furnace 1. The hot gas for the preheaters comes from the exhaust duct of furnace 1, the powdered material being separated in cyclone 11. The kiln 16 is heated by a burner in the lower end hood 17 and the fully burnt cement is cooled at 18 by air which is afterwards passed by duct 6 to the furnace 1 as described. There may by a dust separator in this duct. A fan 23 reduces the pressure in the preheater so that air and exhaust gases flow into the furnace 1. During start-up, and in the event of break-down of fan 23, overheating is prevented by opening the damper 29 to admit cold air to the furnace 1, the hot air from the cooler 18 being taken away by a fan 31. A damper 30 in outlet duct 22 is closed to stop the gases flowing through the pre-heater.
GB2379973A 1972-05-20 1973-05-18 Apparatus for example for burning the powdered materials for making cement Expired GB1428828A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5898572U JPS5143225Y2 (en) 1972-05-20 1972-05-20
JP9955272A JPS5240328B2 (en) 1972-10-04 1972-10-04
JP503273A JPS523739B2 (en) 1973-01-08 1973-01-08

Publications (1)

Publication Number Publication Date
GB1428828A true GB1428828A (en) 1976-03-17

Family

ID=27276566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2379973A Expired GB1428828A (en) 1972-05-20 1973-05-18 Apparatus for example for burning the powdered materials for making cement

Country Status (13)

Country Link
US (1) US3869248A (en)
AU (1) AU471315B2 (en)
CA (1) CA1013567A (en)
CH (1) CH565979A5 (en)
CS (1) CS199240B2 (en)
DE (2) DE2325468B2 (en)
DK (1) DK138435B (en)
ES (1) ES414871A1 (en)
FR (1) FR2186125A5 (en)
GB (1) GB1428828A (en)
IN (1) IN139189B (en)
IT (1) IT987726B (en)
PL (1) PL89125B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561842A (en) * 1982-09-02 1985-12-31 F. L. Smidth & Co. A/S Apparatus for burning pulverulent raw material
DE102011078766A1 (en) 2011-07-06 2013-01-10 Leibniz-Institut Für Polymerforschung Dresden E.V. Processing polytetrafluoroethylene comprises e.g. mixing non-flowing polytetrafluoroethylene-raw material with low-boiling or high-boiling liquid or liquid mixture, grinding and drying mixture or sedimented polytetrafluoroethylene

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5072924A (en) * 1973-10-29 1975-06-16
US3914098A (en) * 1973-11-09 1975-10-21 Ishikawajima Harima Heavy Ind Suspension-type preheating system for powdery raw materials
GB1441673A (en) * 1974-01-25 1976-07-07 Smidth & Co As F L Rotary kiln plants
JPS5347497Y2 (en) * 1974-02-19 1978-11-14
GB1446241A (en) * 1974-03-22 1976-08-18 Smdth Co As F L Method of and plant for calcinating pulverous raw material
GB1506733A (en) * 1974-03-29 1978-04-12 Lafarge Sa Method of treating raw material for producing cement
GB1453215A (en) * 1974-05-10 1976-10-20 Smidth & Co As F L Calcination of pulverous material
US4201541A (en) * 1974-06-03 1980-05-06 Fritz Schoppe Process and installation for the production of calcined material
FR2291161A1 (en) * 1974-06-06 1976-06-11 Schoppe Fritz Lime recovery from (sugar ind) waste slurry - by heat treatment in suspension in rising hot air stream
JPS5343182B2 (en) * 1974-11-07 1978-11-17
JPS51150523A (en) * 1975-06-20 1976-12-24 Ishikawajima Harima Heavy Ind Method of baking powdery raw materials and apparatus for carrying out thereof
JPS52142721A (en) * 1976-05-25 1977-11-28 Ishikawajima Harima Heavy Ind Method of baking powdery raw materials by simultaneously using powdery raw materials containing combustible components and other powdery raw materials
US4201546A (en) * 1976-07-09 1980-05-06 Klockner-Humboldt-Deutz Aktiengesellschaft Method and apparatus for the thermal treatment of alkali-containing pulverized raw material to be used in the manufacture of cement
US4050882A (en) * 1976-11-04 1977-09-27 Allis-Chalmers Corporation Dual variable orifice for reinforced preheater
US4094626A (en) * 1976-11-23 1978-06-13 Fuller Company Apparatus for producing cement clinker
DE2744042C2 (en) * 1977-09-30 1984-09-06 Klöckner-Humboldt-Deutz AG, 5000 Köln Heat exchanger for the thermal treatment of fine-grained goods
FR2423440A1 (en) * 1978-04-20 1979-11-16 Fives Cail Babcock PROCESS AND PLANT FOR HIGH-TEMPERATURE CALCINATION OF PHOSPHATE ORES
DE2909234C2 (en) * 1979-03-09 1986-02-27 Klöckner-Humboldt-Deutz AG, 5000 Köln Plant for burning raw materials for hydraulic binders, in particular cement
DE3000494A1 (en) * 1980-01-08 1981-07-09 Krupp Polysius Ag, 4720 Beckum METHOD AND INSTALLATION FOR THE HEAT TREATMENT OF FINE GRAIN GOODS
EP0048537B1 (en) * 1980-09-22 1985-03-20 F.L. Smidth & Co. A/S Kiln plant for burning granular or pulverulent material
JPS6053267B2 (en) * 1980-12-15 1985-11-25 秩父セメント株式会社 Powder raw material calcination equipment
US4372784A (en) * 1981-08-21 1983-02-08 Allis-Chalmers Corporation Method for heat treating pulverous raw material calcining combustor therefor
DK381783A (en) * 1982-09-02 1984-03-03 Kawasaki Heavy Ind Ltd CALCINATOR WITH PLANET COOLER
FR2549816B1 (en) * 1983-07-28 1985-11-15 Fives Cail Babcock CALCINATION PLANT FOR THE PRODUCTION OF SEVERAL QUALITIES OF ALUMINA AND METHOD FOR OPERATING THE SAME
DE3333705A1 (en) * 1983-09-17 1985-04-04 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD AND SYSTEM FOR THE PRODUCTION OF LOW POLLUTERS, IN PARTICULAR LOW-ALKALINE CEMENT CLINKER
FR2552750B1 (en) * 1983-09-30 1987-08-14 Fives Cail Babcock PROCESS FOR OPERATING A CALCINATION PLANT FOR THE PRODUCTION OF SEVERAL QUALITIES OF ALUMINA
US4715811A (en) * 1985-07-01 1987-12-29 Fuller Company Process and apparatus for manufacturing low sulfur cement clinker
JPS62112984A (en) * 1985-11-13 1987-05-23 秩父セメント株式会社 Calciner for fluidizing and baking powder material
US4708644A (en) * 1986-07-08 1987-11-24 Fuller Company Apparatus for roasting fine grained material
DE3701964A1 (en) * 1987-01-23 1988-08-04 Krupp Polysius Ag DEVICE FOR THE HEAT TREATMENT OF FINE GRAIN
DE10030613A1 (en) * 2000-06-21 2002-01-03 Kloeckner Humboldt Wedag Plant for the thermal treatment of flour-like raw materials
EP1923367B1 (en) * 2006-11-13 2013-08-28 Lafarge Process for the production of cement
DE102018206674A1 (en) 2018-04-30 2019-10-31 Thyssenkrupp Ag Oxyfuel clinker production without recirculation of preheater exhaust gases
DE102018206673A1 (en) 2018-04-30 2019-10-31 Thyssenkrupp Ag Oxyfuel clinker production with special oxygen supply
CN109608071A (en) * 2019-02-15 2019-04-12 中材海外工程有限公司 A kind of multistage pre-heating system of cement predecomposition kiln
CN112594697B (en) * 2020-12-28 2023-08-08 华润水泥技术研发（广西）有限公司 Combined decomposing furnace with external capacity expansion and nitrogen reduction functions and use method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2352738A (en) * 1940-01-15 1944-07-04 Robert F Ruthruff Manufacture of alkali metal silicates
US2580235A (en) * 1947-02-28 1951-12-25 Lellep Otto George Manufacturing wet process cement
DE1126306B (en) * 1959-10-17 1962-03-22 Kloeckner Humboldt Deutz Ag Process for burning cement raw material that contains alkalis
US3452968A (en) * 1966-10-12 1969-07-01 Ishikawajima Harima Heavy Ind Roasting process of fine ore and a device therefor
US3544093A (en) * 1968-11-05 1970-12-01 Wyandotte Chemicals Corp Calcining limestone
DE1926485C3 (en) * 1969-05-23 1975-01-23 Polysius Ag, 4723 Neubeckum Plant for the heat treatment of material processed in the wet process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561842A (en) * 1982-09-02 1985-12-31 F. L. Smidth & Co. A/S Apparatus for burning pulverulent raw material
DE102011078766A1 (en) 2011-07-06 2013-01-10 Leibniz-Institut Für Polymerforschung Dresden E.V. Processing polytetrafluoroethylene comprises e.g. mixing non-flowing polytetrafluoroethylene-raw material with low-boiling or high-boiling liquid or liquid mixture, grinding and drying mixture or sedimented polytetrafluoroethylene

Also Published As

Publication number Publication date
DE2325468B2 (en) 1977-01-27
FR2186125A5 (en) 1974-01-04
CA1013567A (en) 1977-07-12
DK138435C (en) 1979-02-12
DK138435B (en) 1978-09-04
ES414871A1 (en) 1976-05-01
US3869248A (en) 1975-03-04
IN139189B (en) 1976-05-22
CS199240B2 (en) 1980-07-31
DE2365591A1 (en) 1975-11-20
AU471315B2 (en) 1976-04-15
CH565979A5 (en) 1975-08-29
AU5500873A (en) 1974-10-31
IT987726B (en) 1975-03-20
PL89125B1 (en) 1976-10-30
DE2365591B2 (en) 1979-10-11
DE2325468A1 (en) 1973-11-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930517