SU655882A1 - Device for roasting cement raw mix - Google Patents

Device for roasting cement raw mix

Info

Publication number
SU655882A1
SU655882A1 SU752114389A SU2114389A SU655882A1 SU 655882 A1 SU655882 A1 SU 655882A1 SU 752114389 A SU752114389 A SU 752114389A SU 2114389 A SU2114389 A SU 2114389A SU 655882 A1 SU655882 A1 SU 655882A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pipe
chamber
shaft
preheater
pipeline
Prior art date
Application number
SU752114389A
Other languages
Russian (ru)
Inventor
Филоуш Йири
Плшек Йосеф
Немечек Петр
Original Assignee
Преровске Строирны Народни Подник (Инопредприятие)
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 Преровске Строирны Народни Подник (Инопредприятие) filed Critical Преровске Строирны Народни Подник (Инопредприятие)
Application granted granted Critical
Publication of SU655882A1 publication Critical patent/SU655882A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/43Heat treatment, e.g. precalcining, burning, melting; Cooling
    • C04B7/432Preheating without addition of fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2016Arrangements of preheating devices for the charge
    • F27B7/2041Arrangements of preheating devices for the charge consisting of at least two strings of cyclones with two different admissions of raw material
    • F27B7/205Arrangements of preheating devices for the charge consisting of at least two strings of cyclones with two different admissions of raw material with precalcining means on the string supplied with exhaust gases from the cooler

Landscapes

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

Claims (2)

в камеру тангенциально, в трубопровод введен патрубок дл  отвода подогретого сырь  из шахты другого ответвлени . Изобретение по сн етс  чертежом. Устройство содержит вращающуюс , печь 1, соединенную с подогревателе.м из двух параллельных ветвей, последние ступени которого выполпены в виде щахт 2 и 3, и с холодильником 4. Шахта 2 по вертикальной оси соединена с кальцинирующей камерой 5, а щахта 3 трубопроводом 6 дымовых газов - с вращающейс  печью 1. Камера 5 трубопроводом 7 подогретого воздуха соединена с холодильником 4 и патрубком 8 дл  отвода сырь  с печью 1. В трубопровод 7 введен патрубок 9 дл  подачи сырь  из щахты 3. Устройство работает следующим образом . Сырье подаетс  в щахты 10, 11, затем перемещаетс  через систему циклонов 12, 13 и пр моточные 2 и 3, а подогретый материал из шахты 2 подогревател  через конический переход 14 - в кальцинирующую камеру 5. Подогретый материал из шахты 3 подогревател  скапливаетс  в конической воронке 15, из которой он по патрубку 9 с заглушкой 16 попадает в трубопровод 7 подогретого воздуха и вместе с ним подаетс  в кальцинирующую камеру 5. Не захваченный газами материал - осколки футеровки - через вертикальную часть трубопровода 7 падает вниз и через патрубок 17 с заглушкой 18 вводите в головку 19 вращающейс  печи 1. В кальцинирующей камере 5 протекает больща  часть процесса кальцинировани  с использованием тепла, выделившегос  в результате сгорани  топлива, подаваемого горелками 20. Из камеры 5 материал, прошедший стадию кальцинации, по патрубку 8 с заглушкой 21 вводитс  в головку 19 печи 1, где заканчиваетс  процесс кальцинировани  и протекает процесс спекани , причем используетс  тепло, выделившеес  в результате сгорани  топлива, подведенного горелками 22. Обожженный клинкер охлаждаетс  в холодильнике 4. Подогретый воздух из холодильника 4 поступает с одной стороны в печь 1, с другой стороны по трубопроводу 7 - в кальцинирующую камеру 5. Дымовые газы из печи 1 по трубопроводу б тангенциально подвод тс  к щахте 3, а затем через шахту 11, систему циклонов 13 с помощью вентил тора 23 отвод тс  по трубе 24. Дымовые газы из камеры 5 через щахту 2, шахту 10 и систему циклонов 12 отвод тс  с помощью зентил тора 25 по трубе 26. В кальцинирующую камеру материал поступает двум  потоками: один из потоков входит тангенциально, другой - аксиально . Тангенциальный поток сырь  движетс  вблизи футеровки и защищает ее таким образом от непосредственного воздействи  пламени. При этом в камере происходит полное рассеивание и перемещивание сырь , что преп тствует забиванию камеры склеивающимис  частицами. Кроме того, кальцинирующа  камера установлена на продолжении шахты одного ответвлени  подогревател , следовательно нет соединительного трубопровода дл  материала и газа, что приводит к уменьщению потерь тепла и снижению общего сопротивлени  установки. Формула изобретени  Устройство дл  обжига цементной сырьевой смеси, содержащее многоступенчатый подогреватель с двум  параллельными ответвлени ми , кальцинирующую камеру, соединенную с одной ветвью подогревател , вращающуюс  печь, холодильник, патрубки дл  подвода и отвода сырь , трубопроВОДЫ дл  подачи газа и воздуха, отличающеес  тем, что, с целью повышени  эффективности обжига, последн   ступень подогревател  каждой ветви выполнена в виде шахты, а кальцинирующа  камера соединена с шахтой по вертикальной оси, с вращающейс  печью - патрубком дл  отвода сырь  и с холодильником - трубопроводом подогретого воздуха, вход щим в камеру тангенциально, в трубопровод введен патрубок дл  отвода подогретого сырь  из шахты другого ответвлени . Источники информации, прин тые во внимание при экспертизе 1.Патент Франции № 2109337, кл. F 27 D 13/00, 1972. tangentially into the chamber, a pipe is introduced into the pipeline to drain the heated raw material from the shaft of another branch. The invention is illustrated in the drawing. The device contains a rotating, furnace 1, connected to a heater m from two parallel branches, the last steps of which are made in the form of tongues 2 and 3, and with a refrigerator 4. Mine 2 along the vertical axis is connected to the calcining chamber 5, and the axis 3 by pipe 6 of smoke gases - with a rotary kiln 1. A chamber 5 with a heated air duct 7 is connected to a cooler 4 and a duct 8 for draining raw materials from the furnace 1. A duct 9 is inserted in duct 7 for feeding raw materials from the bed 3. The device operates as follows. The raw materials are fed to the pits 10, 11, then transferred through a system of cyclones 12, 13 and continuous 2 and 3, and the preheated material from the preheater shaft 2 through the conical junction 14 is transferred to the calcining chamber 5. The preheated material from the preheater shaft 3 is accumulated in a conical funnel 15, from which it enters the heated air pipe 7 through the pipe 9 with the plug 16 and with it flows into the calcining chamber 5. The material not trapped by gases - lining fragments - falls down through the vertical part of the pipe 7 and through pipe 17 with the pipe 18 enter into the head 19 of the rotary kiln 1. In the calcining chamber 5 a large part of the calcination process takes place using the heat generated by the combustion of the fuel supplied by the burners 20. From chamber 5, the material that passed the calcination stage is fed through pipe 8 to the plug 21 the head 19 of the furnace 1, where the calcination process ends and the sintering process proceeds, and the heat released as a result of the combustion of the fuel supplied by the burners 22 is used. The burned clinker is cooled in the refrigerator 4. The preheated air from the refrigerator 4 enters from one side into the furnace 1, from the other side through the pipeline 7 to the calcining chamber 5. The flue gases from the furnace 1 through the pipeline are tangentially supplied to the shaft 3 and then through the shaft 11, a cyclone system 13 sec. the fan 23 is withdrawn through pipe 24. The flue gases from chamber 5 through drill 2, shaft 10 and cyclone system 12 are removed by means of zentyl 25 through pipe 26. The material is fed into the calcining chamber in two streams: the other is axial. The tangential flow of the raw material moves in the vicinity of the liner and thus protects it from direct exposure to the flame. In this case, complete dispersion and movement of the raw material occurs in the chamber, which prevents the chamber from clogging up by gluing particles. In addition, the calcining chamber is installed on the continuation of the shaft of one branch of the preheater, therefore there is no connecting pipe for the material and gas, which leads to a decrease in heat loss and a decrease in the overall resistance of the installation. Claims: A cement raw mix baking apparatus comprising a multistage two parallel branch preheater, a calcining chamber connected to one preheater branch, a rotary kiln, a cooler, pipes for supplying and discharging the raw materials, a pipeline for supplying gas and air, characterized in that In order to increase the burning efficiency, the last stage of the preheater of each branch is made in the form of a shaft, and the calcining chamber is connected to the shaft along a vertical axis with a rotary kiln - a pipe for removal of raw materials and with a refrigerator - a pipeline of heated air entering the chamber tangentially; a pipe is inserted into the pipeline for removal of heated material from the shaft of another branch. Sources of information taken into account in the examination 1.Patent of France No. 2109337, cl. F 27 D 13/00, 1972. 2.Авторское свидетельство № 359490, кл. F 27 В 7/34, 1972.2. Certificate of author No. 359490, cl. F 27 B 7/34, 1972. 2222
SU752114389A 1974-03-08 1975-03-07 Device for roasting cement raw mix SU655882A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS168274A CS210252B1 (en) 1974-03-08 1974-03-08 Facility for firing the cementing raw material and similar substances

Publications (1)

Publication Number Publication Date
SU655882A1 true SU655882A1 (en) 1979-04-05

Family

ID=5351795

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752114389A SU655882A1 (en) 1974-03-08 1975-03-07 Device for roasting cement raw mix

Country Status (12)

Country Link
JP (1) JPS5547309B2 (en)
AT (1) AT346751B (en)
BR (1) BR7501364A (en)
CH (1) CH615655A5 (en)
CS (1) CS210252B1 (en)
DD (1) DD119084A1 (en)
DE (1) DE2509127B2 (en)
DK (1) DK142066B (en)
FR (1) FR2263204B1 (en)
GB (1) GB1454877A (en)
IT (1) IT1034125B (en)
SU (1) SU655882A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112728930A (en) * 2021-01-05 2021-04-30 南京春又绿科技有限公司 Roasting rotary kiln

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1479220A (en) * 1975-10-27 1977-07-06 Smidth & Co As F L Kiln plant
IT1121731B (en) * 1975-10-28 1986-04-23 Fives Cail Babcock REFINEMENTS IN DRY CEMENT MANUFACTURING INSTALLATIONS
DE2752323A1 (en) * 1977-11-23 1979-06-07 Polysius Ag METHOD AND INSTALLATION FOR THE HEAT TREATMENT OF FINE GRAIN GOODS
DE3248175A1 (en) * 1982-12-27 1984-06-28 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD AND SYSTEM FOR THE THERMAL TREATMENT OF MINERAL RAW MATERIALS
GB8325035D0 (en) * 1983-09-19 1983-10-19 Smidth & Co As F L Precalcining pulverous raw material
JPH02106382U (en) * 1989-02-13 1990-08-23
DE102006017211A1 (en) * 2006-04-12 2007-10-18 Cemag-Anlagenbau-Dessau Gmbh Method and device for introducing raw meal into the calciner by means of tertiary air
EP2676941A1 (en) 2012-06-21 2013-12-25 Carbon-Hydrogen-Minerals SPRL Process and plant for cement clinker production
EP2703369A1 (en) 2012-08-30 2014-03-05 Carbon-Hydrogen-Minerals SPRL Process and plant for cement clinker production
CN108267013B (en) * 2016-12-31 2023-10-27 中冶长天国际工程有限责任公司 Sinter cooling and waste heat utilization system and low-oxygen full-circulation cooling method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239407B2 (en) * 1972-04-27 1977-10-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112728930A (en) * 2021-01-05 2021-04-30 南京春又绿科技有限公司 Roasting rotary kiln
CN112728930B (en) * 2021-01-05 2022-07-29 河南鑫诚耐火材料股份有限公司 Roasting rotary kiln

Also Published As

Publication number Publication date
GB1454877A (en) 1976-11-03
DD119084A1 (en) 1976-04-05
CS210252B1 (en) 1982-01-29
DE2509127B2 (en) 1977-05-26
IT1034125B (en) 1979-09-10
BR7501364A (en) 1975-12-09
DK94275A (en) 1975-09-09
JPS5547309B2 (en) 1980-11-28
CH615655A5 (en) 1980-02-15
DK142066B (en) 1980-08-18
AT346751B (en) 1978-11-27
DE2509127A1 (en) 1975-09-18
DK142066C (en) 1981-03-16
FR2263204A1 (en) 1975-10-03
FR2263204B1 (en) 1978-10-06
ATA137975A (en) 1978-03-15
JPS50126022A (en) 1975-10-03

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