DE189153C - - Google Patents
Info
- Publication number
- DE189153C DE189153C DENDAT189153D DE189153DA DE189153C DE 189153 C DE189153 C DE 189153C DE NDAT189153 D DENDAT189153 D DE NDAT189153D DE 189153D A DE189153D A DE 189153DA DE 189153 C DE189153 C DE 189153C
- Authority
- DE
- Germany
- Prior art keywords
- lime
- slag
- cement
- way
- gas
- 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
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 19
- 235000015450 Tilia cordata Nutrition 0.000 claims description 19
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 19
- 239000004571 lime Substances 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000009618 Bessemer process Methods 0.000 description 1
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 239000004572 hydraulic lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 189153 KLASSE 80 b. GRUPPE- M 189153 CLASS 80 b. GROUP
der Schlacke unter Zusatz von Kalk.the slag with the addition of lime.
Zur Herstellung von hydraulischem Zement aus Hochofenschlacke hat man bekanntlich schon vorgeschlagen, in die flüssige Schlacke Kalk einzuführen. Man verfuhr hierbei in der Weise, daß der Kalk, wie beim Bessemerprozeß in die flüssige Schlackenmasse mittels eines Gasstromes eingeblasen und dann aufgelöst wurde. Dieses-Verfahren erfordert daher einen besonderen Ofen ο. dgl. und vielIt is known that hydraulic cement is made from blast furnace slag already proposed to introduce lime into the liquid slag. This was done in the way that the lime, as in the Bessemer process, in the liquid slag mass by means of a gas stream was blown in and then dissolved. This procedure requires therefore a special oven ο. like. and a lot
ίο Brennstoff. Oder man führte auch wohl die flüssige Schlacke auf eine besonders gebaute Zerstäubungsvorrichtung, auf welche gleichzeitig der Kalk geleitet wurde. Dieses Verfahren ist ebenfalls umständlich und erfordert besondere Apparate; auch ist zu bezweifeln, ob die Schlacke sich mit dem Kalk genügend mischen wird; jedenfalls sinkt die Temperatur in der Schlacke durch die Zerstäubung so weit herunter, daß eine chemische Aufnahme von Kalk kaum möglich ist. Ferner hat man schon vorgeschlagen, die feuerflüssige Schlacke in zerstäubtem Zustande mit-vorgewärmtem Kalkmehl o. dgl. zu mischen. Dieses Verfahren erfordert ebenfalls einen besonderen Hitzeaufwand, da sonst nur die obere Schicht Kalk aufnehmen und dann sofort erstarren würde, so daß die darunterliegende Schicht keinen Kalk mehr erhielte.ίο fuel. Or you probably also led them liquid slag on a specially built atomizing device, on which at the same time the lime was passed. This procedure is also cumbersome and required special apparatus; it is also doubtful whether the slag is enough with the lime will mix; in any case, the temperature in the slag drops as a result of the atomization far down that chemical absorption of lime is hardly possible. Furthermore, one has already proposed that the molten slag in the atomized state with-preheated To mix lime flour or the like. This procedure also requires a special one Expenditure of heat, otherwise only the upper layer will absorb lime and then solidify immediately so that the layer below would no longer receive any lime.
Alle diese Nachteile werden gemäß vorliegender Erfindung dadurch vermieden, daß die Zerteilung der Schlacke so vorgenommen wird, daß ein mit möglichst staubförmigem Kalk (d. h. gebranntem oder gelöschtem Kalk, Kalkstein, Zement) entsprechend beladerier Dampf-, Gas- oder Luftstrom (zweckmäßig in heißem oder überhitztem Zustand) gegen einen ausfließenden Schlackenstrahl geblasen wird.All these disadvantages are avoided according to the present invention in that the slag is broken up in such a way that it is as dusty as possible Lime (i.e. burnt or slaked lime, limestone, cement) should be loaded accordingly Steam, gas or air flow (expediently in a hot or overheated state) against an outflowing stream of slag is blown.
Derart behandelte Schlacke kann bei oder unmittelbar nach ihrer Zerteilung sofort künstlieh (schnell oder langsam) weiter gekühlt oder in Haufen der Selbstabkühlung überlassen werden. Slag treated in this way can be artificially borrowed during or immediately after it has been broken up Chilled further (quickly or slowly) or left to self-cool in heaps.
In letzterem Falle wird das Blasen derart ausgeführt, daß die zerteilte Schlacke mögliehst auf einen Haufen fällt, den man in sich selbst abkühlen läßt.In the latter case, the blowing is carried out in such a way that the divided slag is possible falls in a heap that is left to cool in on itself.
Der Kalk kann, wie bereits oben angedeutet , angewendet werden in Form von gebranntem oder gelöschtem Kalk oder in Form von feingemahlenem Kalkstein, welcher auch kieselsäurehaltig sein kann, auch in Form von hydraulischem Kalk (Zement). Es ist überhaupt jede Kalkverbindung geeignet, bei welcher die Nebenbestandteile keinen schädlichen Einfluß ausüben; der Kalkgehalt und die Kalkverbindung muß nur derart sein, daß der herzustellende Zement die nötige Basizität erhält. In diesem Sinne ist auch die Bezeichnung «Kalkzusatz« für die vorliegende Erfindung zu verstehen.As already indicated above, the lime can be used in the form of burnt or slaked lime or in the form of finely ground limestone, which can also contain silica, also in the form of hydraulic lime (cement). It Any lime compound is suitable in which the minor components do not exert harmful influence; the lime content and the lime compound need only be such, that the cement to be produced receives the necessary basicity. In this sense is also to understand the term "lime additive" for the present invention.
Um die Zufuhr des Kalkes zu regeln, läßt man das Kalkmehl dem Strahlapparat, der ein Dampf-, Luft- oder Gasstrahlgebläse sein kann, derart zufließen, daß entweder die Menge des Zuflusses durch einen im Zuflußrohr an-In order to regulate the supply of lime, the lime powder is left in the jet apparatus, the a steam, air or gas jet blower can be, flow in such a way that either the amount of the inflow through a
gebrachten Hahn oder Schieber geregelt wird, oder indem der Dampf-, Luft- oder Gasstrahl verstärkt oder vermindert wird.The tap or gate valve brought in is regulated, or by the steam, air or gas jet is increased or decreased.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE189153C true DE189153C (en) | 1900-01-01 |
Family
ID=452727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT189153D Expired DE189153C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE189153C (en) |
-
0
- DE DENDAT189153D patent/DE189153C/de not_active Expired
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