BE344113A - - Google Patents
Info
- Publication number
- BE344113A BE344113A BE344113DA BE344113A BE 344113 A BE344113 A BE 344113A BE 344113D A BE344113D A BE 344113DA BE 344113 A BE344113 A BE 344113A
- Authority
- BE
- Belgium
- Prior art keywords
- lime
- sent
- fine
- coarse grains
- separated coarse
- Prior art date
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims 2
- 239000000463 material Substances 0.000 description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
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Procédé de fabrication d'une chaux fine, ne gonflant pas et exempte de morceaux de la matière première.
On a suivi jusqu'à présent pour la fabrication de chaux fi- ne la voie suivante :
La chaux est éteinte à sec, et remuée pour être ensuite chargée dans un concasseur.'Un élévateur transporte ensuite la matière dans le silo d'alimentation du broyeur (broyeur à boulets',dans lequel toute la matière éteinte passe. On charge donc dans le broyeur de la poudre fine,des matières brulées et des incuits. La poudre fine est fréquemment enlevée par un séparateur et réunie à la matière finale du broyeur à boulets.
Un semblable produit n'est pas parfait car il consiste en trois fractions différentes.Le produit fin),) obtenu donne un résidu d'environ 8 % sur un tamis de 900 mailles. Ce résidu consiste en de la chaux brulée et en des incuits. La chaux brûlée produit dans le plafonnage les grains qui sautent et qui provoquent les phénomènes de gonflement les plus désagréa bles.
La matière incuite ne réagit pas au point de vue de la technique des matériaux de construction,vu que c'est une pierr non cuite ,et constitue une masse inerte./Il n'est donc pas
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étonnant que les plaintes ne cessent pas au sujet du produit actuellement sur le marché. le procédé suivant la présente invention élimine complètement ces inconvénients.Il travaille de la manière suivante :
La chaux est éteinte à sec et envoyée ensuite au moyen d'un élévateur au séparateur.au moyen duquel on sépare la poudre fine et les gros grains. Ces derniers consistent en des matières brulées et en des induits qui sont envoyés dans le silo d'alimentation d'un tambour à sec, à la sortie duquel ils parviennent après mouillage dans le séchoir.
Dans le séchoir, la chaux brulée est complètement hydratée par l'action de la chaleur et son volume est ainsi rendu constant.
La matière quittant le séchoir est envoyée dans un séparateur dont la sortie réservée aux gros grains ne fournit que de la matière incuite qui est réemployée pour couvrir le feu du four à cuve en vue de la conduite convenable du four.
Le procédé suivant la présente invention permet de produire une chaux conservant un volume absolument constant et exempte de particules de la matière première,et d'obtenir grâce à des économie importantes de force motrice des avantages économiques très con sidérabl es.
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A method of making fine lime, which does not swell and free from pieces of the raw material.
Until now, the following procedure has been followed for the manufacture of fine lime:
The lime is dry slaked, and stirred to be loaded into a crusher. 'An elevator then transports the material to the feed silo of the mill (ball mill', in which all the slaked material passes. The fine powder, burnt material and incuits grinder The fine powder is frequently removed by a separator and joined to the final material of the ball mill.
A similar product is not perfect because it consists of three different fractions. The end product),) obtained gives a residue of about 8% on a 900 mesh sieve. This residue consists of burnt lime and incuits. The burnt lime produces grains in the plaster which skip and cause the most unpleasant swelling phenomena.
The induced material does not react from the point of view of the technique of building materials, since it is an unfired stone, and constitutes an inert mass. / It is therefore not
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wonder that the complaints do not cease about the product currently on the market. the process according to the present invention completely eliminates these drawbacks. It works as follows:
The lime is slaked to dryness and then sent by means of an elevator to the separator, by means of which the fine powder and the coarse grains are separated. These consist of burnt materials and armatures which are sent to the feed silo of a dry drum, at the outlet of which they arrive after wetting in the dryer.
In the dryer, the burnt lime is completely hydrated by the action of heat and its volume is thus made constant.
The material leaving the dryer is sent to a separator, the output of which is reserved for the coarse grains, providing only the induced material which is reused to cover the fire of the shaft furnace for the proper operation of the furnace.
The process according to the present invention makes it possible to produce a lime which retains an absolutely constant volume and free from particles of the raw material, and to obtain, thanks to significant savings in motive power, very considerable economic advantages.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE344113A true BE344113A (en) |
Family
ID=20323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE344113D BE344113A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE344113A (en) |
-
0
- BE BE344113D patent/BE344113A/fr unknown
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