SU523631A3 - Method for continuous calcination of aluminum hydroxide - Google Patents

Method for continuous calcination of aluminum hydroxide

Info

Publication number
SU523631A3
SU523631A3 SU1865666A SU1865666A SU523631A3 SU 523631 A3 SU523631 A3 SU 523631A3 SU 1865666 A SU1865666 A SU 1865666A SU 1865666 A SU1865666 A SU 1865666A SU 523631 A3 SU523631 A3 SU 523631A3
Authority
SU
USSR - Soviet Union
Prior art keywords
aluminum hydroxide
hydrate
continuous calcination
load
dehydration
Prior art date
Application number
SU1865666A
Other languages
Russian (ru)
Inventor
Пензеш Имре
Т.Тот Иозеф
Original Assignee
Алмашфюзитеи Тимфелддьяр (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 Алмашфюзитеи Тимфелддьяр (Инопредприятие) filed Critical Алмашфюзитеи Тимфелддьяр (Инопредприятие)
Application granted granted Critical
Publication of SU523631A3 publication Critical patent/SU523631A3/en

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
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/002—Calcining using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C7/00—Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00
    • 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 specially adapted for 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

(54) СПОСОБ НЕПРЕРЫВНОЙ КАЛЬЦИНАЦИИ ГИДРООКИСИ АЛЮМИНИЯ(54) METHOD OF CONTINUOUS CALCINATION OF ALUMINUM HYDROXIDE

телеи, после чего осушенный матернал поступает па прокалку во вращающуюс  печь.after which the dried maternal is fed to the rotary kiln.

Способ позвол ет исключить налипание гидрата на стенках газопроводов и циклонов, обеспечить равномерное питание вращающейс  печи и повысить производительность процесса на 10-20%.The method eliminates sticking of the hydrate on the walls of gas pipelines and cyclones, ensures uniform feeding of the rotary kiln and improves the process efficiency by 10-20%.

Claims (2)

1. Способ непрерывной кальцинации гидроокиси алюмини , включающий стадии загрузки влажного гидрата, дегидратации и прокалки, с возвратом технологической пыли па загрузку, отличающийс  тем, что, с целью повыщени  производительности процесса , на загрузку дополнительно подают часть гидрата со стадии дегидратации в количестве , обеспечивающем доведение влажности загрузочного гидрата до 6-8%.1. A method of continuous calcination of aluminum hydroxide, including the steps of loading wet hydrate, dehydration and calcining, with the return of process dust to a load, characterized in that, in order to increase the productivity of the process, part of the hydrate from the dehydration stage is additionally fed to the load in order to bring moisture loading hydrate to 6-8%. 2. Способ по п. 1, отличающийс  тем, что гидрат отбирают со стадии дегидратации из зоны с температурой 125-500°С.2. A method according to claim 1, characterized in that the hydrate is taken from the dehydration stage from a zone with a temperature of 125-500 ° C.
SU1865666A 1971-12-23 1972-12-22 Method for continuous calcination of aluminum hydroxide SU523631A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUAA000692 HU163978B (en) 1971-12-23 1971-12-23

Publications (1)

Publication Number Publication Date
SU523631A3 true SU523631A3 (en) 1976-07-30

Family

ID=10992964

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1865666A SU523631A3 (en) 1971-12-23 1972-12-22 Method for continuous calcination of aluminum hydroxide

Country Status (11)

Country Link
CA (1) CA1023938A (en)
CH (1) CH562437A5 (en)
DD (1) DD101968A1 (en)
DE (1) DE2263099C3 (en)
FR (1) FR2165673A5 (en)
GB (1) GB1410196A (en)
HU (1) HU163978B (en)
IT (1) IT976188B (en)
NO (1) NO136859C (en)
SU (1) SU523631A3 (en)
YU (1) YU320772A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143808A (en) * 1983-07-28 1985-02-20 Clydesdale Excavation & Constr Reclamation from steelworks dust
DE102021129322B4 (en) * 2021-11-11 2023-09-07 Khd Humboldt Wedag Gmbh Conveying device for a plant for the production of cement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639709C (en) * 1934-09-01 1936-12-12 Buettner Werke A G Method and device for calcining substances containing water of crystallization
DE975836C (en) * 1949-07-02 1962-10-18 Babcock & Wilcox Dampfkessel W Mill drying system heated by exhaust gases from the fired steam generator
FR1248038A (en) * 1959-10-28 1960-12-09 Electrochimie Electrometallurg Anhydrous aluminas manufacturing process
DE1519737A1 (en) * 1965-04-12 1970-03-12 Westfalia Dinnendahl Groeppel Device for preheating and calcining dust-like substances, in particular bauxite
DE1592127A1 (en) * 1967-10-06 1971-01-14 Kloeckner Humboldt Deutz Ag Process for the continuous dehydration of oxide hydrates of aluminum

Also Published As

Publication number Publication date
GB1410196A (en) 1975-10-15
CH562437A5 (en) 1975-05-30
HU163978B (en) 1973-12-28
DE2263099B2 (en) 1976-08-19
NO136859B (en) 1977-08-08
DE2263099C3 (en) 1982-01-07
IT976188B (en) 1974-08-20
YU320772A (en) 1982-02-28
NO136859C (en) 1977-11-16
CA1023938A (en) 1978-01-10
DD101968A1 (en) 1973-11-20
DE2263099A1 (en) 1973-07-12
FR2165673A5 (en) 1973-08-03

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