GB995352A - Improvements in or relating to method and apparatus for measuring and controlling moisture in a sinter mix - Google Patents

Improvements in or relating to method and apparatus for measuring and controlling moisture in a sinter mix

Info

Publication number
GB995352A
GB995352A GB40716/61A GB4071661A GB995352A GB 995352 A GB995352 A GB 995352A GB 40716/61 A GB40716/61 A GB 40716/61A GB 4071661 A GB4071661 A GB 4071661A GB 995352 A GB995352 A GB 995352A
Authority
GB
United Kingdom
Prior art keywords
mix
moisture content
density
bulk
water
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
GB40716/61A
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Publication of GB995352A publication Critical patent/GB995352A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/12—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being a flowing fluid or a flowing granular solid
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • C22B1/205—Sintering; Agglomerating in sintering machines with movable grates regulation of the sintering process
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

<PICT:0995352/C1/1> <PICT:0995352/C1/2> The moisture content of a mix to be sintered is controlled at a predetermined value by means determining its bulk-density and comprising a detector 25, measuring the absorbtion of gamma rays omitted by source 23, Fig. 1, by the moistened mix and giving an indication of the moisture content of the mix by means of the graph of Fig. 4. Where the moistened mix is to be pelleted before sintering, the optimum moisture content is near the point of minimum bulk density and is sought and maintained by feeding the output signal from the detector to a computer 24 which stores this signal and causes the flow controller 39 to alter the water supply to spray 15 and so change the bulk density of the mix. The new output signal of the detector is compared with the previously stored signal and the resulting signal causes the computer to alter the water flow towards that giving the required minimum bulk-density. The computer may be omitted if only semi-automatic seeking of a moisture content other than that giving the minimum bulk-density is required. In another embodiment, Fig. 2 (not shown), wherein any moisture content can be automatically sought and held, two gamma radiation sources and detectors are arranged to measure the bulk density of the mix before and after the addition of a small constant amount of water, so as to determine the rate of flow of the nearly dry mix and pass on a resulting signal to a ratio-controller which in turn controls a main water spray to deliver water to the mix in the necessary ratio to give the required moisture content. Specification 858,736 is referred to.
GB40716/61A 1961-02-14 1961-11-14 Improvements in or relating to method and apparatus for measuring and controlling moisture in a sinter mix Expired GB995352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89145A US3148971A (en) 1961-02-14 1961-02-14 Method and apparatus for measuring and controlling moisture in a sinter mix

Publications (1)

Publication Number Publication Date
GB995352A true GB995352A (en) 1965-06-16

Family

ID=22215934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40716/61A Expired GB995352A (en) 1961-02-14 1961-11-14 Improvements in or relating to method and apparatus for measuring and controlling moisture in a sinter mix

Country Status (2)

Country Link
US (1) US3148971A (en)
GB (1) GB995352A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002062A1 (en) * 1980-12-08 1982-06-24 Olle Bostroem A suction sintering method and apparatus therefor
DE3152617A1 (en) * 1980-12-08 1983-07-28 Olle Bostroem SUCTION INTERMEDIATE AND DEVICE FOR THEIR EXERCISE

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966779A (en) * 1961-07-29 1964-08-19 Finanziaria Siderurgica Finsid A method for proportioning the humidifying water in a finely divided mixture undergoing agglomeration by ignition on a continuous grate
US3255975A (en) * 1963-04-24 1966-06-14 Youngstown Sheet And Tube Co Moisture content control apparatus for continuously produced material
US3489549A (en) * 1965-12-29 1970-01-13 Fuji Iron & Steel Co Ltd Sintering material from iron-containing dry dust and preparing method thereof
US3369761A (en) * 1966-01-19 1968-02-20 John W. Hand Grinding mill and fineness control system
US3412699A (en) * 1966-03-22 1968-11-26 Babcock & Wilcox Co Fuel feeding apparatus
US3615344A (en) * 1967-12-01 1971-10-26 Centre Nat Rech Metall Methods of controlling the process of agglomeration
US4010857A (en) * 1968-04-10 1977-03-08 Republic Steel Corporation Coal conditioning system
US3678268A (en) * 1970-11-05 1972-07-18 Republic Steel Corp Bulk density gage and bulk density control system
US3932736A (en) * 1974-04-08 1976-01-13 Beta Corporation Of St. Louis Automatic pellet producing system
US4164655A (en) * 1977-12-30 1979-08-14 Noma Komuten Company Limited Apparatus for measuring quantity of asphalt ingredient in an asphalt compound
US4463430A (en) * 1981-08-31 1984-07-31 Beta Corporation Microprocessor based pellet mill control
US4721448A (en) * 1985-12-19 1988-01-26 Adolph Coors Company Pelletizer with moisture control system
US4814003A (en) * 1988-01-29 1989-03-21 Bergner Richard M Apparatus and method for extraction and recovery of precious metal using coherent radiation
US4993316A (en) * 1988-05-09 1991-02-19 Agrichem, Inc. Seed grain conditioning apparatus
US4898092B1 (en) * 1988-05-09 1993-10-26 Agrichem, Inc. Feed grain conditioning apparatus
US4994286A (en) * 1988-05-09 1991-02-19 Agrichem, Inc. Grain conditioning method
ZA922100B (en) * 1991-03-26 1992-11-25 Samancor Ltd Infra red ignition method for ore sintering process
US5194275A (en) * 1992-08-13 1993-03-16 Agrichem, Inc. Grain processing apparatus
US9389191B2 (en) * 2012-10-22 2016-07-12 Troxler Electronic Laboratories, Inc. Conveyor system and measuring device for determining water content of a construction material
FI126553B (en) * 2013-12-17 2017-02-15 Outotec Finland Oy Process and equipment for preparing concentrates of ore for pelleting
CN112725614A (en) * 2020-12-21 2021-04-30 安徽长江钢铁股份有限公司 Method for controlling water content of sinter mixture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411873A (en) * 1944-06-15 1946-12-03 Erie Mining Co Process of molding balls
US2750144A (en) * 1953-06-22 1956-06-12 Richard C Beckwith Methods and apparatus for controllably dispensing moisture bearing ingredients
US2966628A (en) * 1954-02-25 1960-12-27 Frieseke And Hoepfner G M B H System for measuring moisture content of paper or the like
US2898466A (en) * 1954-03-15 1959-08-04 Halliburton Oil Well Cementing Density determining device
US2931718A (en) * 1958-01-15 1960-04-05 Mckee & Co Arthur G Method and apparatus for automatically measuring and controlling moisture in a sinter mix or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002062A1 (en) * 1980-12-08 1982-06-24 Olle Bostroem A suction sintering method and apparatus therefor
DE3152617A1 (en) * 1980-12-08 1983-07-28 Olle Bostroem SUCTION INTERMEDIATE AND DEVICE FOR THEIR EXERCISE
AT385773B (en) * 1980-12-08 1988-05-10 Bostroem Olle METHOD AND DEVICE FOR PRODUCING A SUCTION SINTER BATCH ON A MOBILE SUCTION GRID OR IN A STATIONARY OR MOBILE SUCTION PAN

Also Published As

Publication number Publication date
US3148971A (en) 1964-09-15

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