DE325970C - Kraehlsteine for Roestöefen - Google Patents

Kraehlsteine for Roestöefen

Info

Publication number
DE325970C
DE325970C DE1919325970D DE325970DD DE325970C DE 325970 C DE325970 C DE 325970C DE 1919325970 D DE1919325970 D DE 1919325970D DE 325970D D DE325970D D DE 325970DD DE 325970 C DE325970 C DE 325970C
Authority
DE
Germany
Prior art keywords
roasting
krählsteine
roestöefen
kraehlsteine
chrome iron
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
DE1919325970D
Other languages
German (de)
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.)
RHEINISCH NASSAUISCHE BERGWERK
Original Assignee
RHEINISCH NASSAUISCHE BERGWERK
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 RHEINISCH NASSAUISCHE BERGWERK filed Critical RHEINISCH NASSAUISCHE BERGWERK
Application granted granted Critical
Publication of DE325970C publication Critical patent/DE325970C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/42—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromites
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor

Description

Krählsteine für Röstöfen. Bekanntlich sind bei den Erzröstöfen mit beweglicher Sohle Krählsteine in die Röstkappen eingebaut, -welche die Aufgabe haben, das Röstgut durch die Röstsohlen zu transportieren. Dieselben sind, insbesondere bei der Abröstung der heißen, backenden, scharfkantigen Blende, einer überaus hohen Beanspruchung ausgesetzt und erfahren eine schnelle Zerstörung. Daher bilden diese Iarählsteine auch den empfindlichsten Teil des Röstofens, und die Okonomie und Lebensfähigkeit des Betriebes ist in erster Linie von ihrer Beständigkeit abhängig.Counters for roasting ovens. It is well known that the ore roasting ovens also have Movable sole Krählsteine built into the roasting caps, which have the task of to transport the roasted food through the roasting soles. Are the same, in particular when roasting the hot, baking, sharp-edged cover, an extremely high one Exposed to stress and quickly destroyed. Hence these form Iarahlsteine also the most delicate part of the roasting oven, and the economy and viability of operation is primarily dependent on their consistency.

Die bisher bekannten Krählsteine haben dieser Anforderung in keiner Weise Genüge geleistet. Diese Mängel werden durch die vorliegende Erfindung beseitigt, und zwar dadurch, daß Krählsteiue verwendet werden, die aus einer Mischung von feuerfestem Ton und Chromeisenstein bestehen.The previously known Krählsteine do not have this requirement in any way Sufficiently done. These deficiencies are eliminated by the present invention, namely in that Krählsteiue are used, which are made of a mixture of refractories Clay and chrome iron stone exist.

Der Zusatz von Chromeisenstein zu keramischen Massen zur Erhöhung der Feuerfestigkeit und Säurebeständigkeit ist an sich bekannt. Als Neuerung wird im vorliegenden Falle angesehen die Verwendung einer Mischung von Chromeisenstein und feuerfestem Ton, vorzugsweise im ungefähren Verhältnisse von i zu i zur Herstellung von Krählsteinen für Ofen mit beweglicher Röstsohle. -Diese Mischung besitzt gerade gegenüber der verschleißenden Wirkung der heißen, scharfkantigen, backenden Zinkblende eine ganz besondere Widerstandsfähigkeit. Die Neuerung ist von weittragender Bedeutung, denn diese Erhöhung der Lebensfähigkeit der Krählsteine ist für die Ökonomie der Ofen maßgeblich. Es wird in erster Linie die von der Haltbarkeit der Krählsteine abhängige Betriebsdauer verlängert und der Ofenbetrieb dadurch wesentlich billiger denn der Einsatz neuer Krählsteine erfordert einen vollständigen Umbau des Ofens, dessen Kosten jedesmal sehr beträchtlich sind.The addition of chrome iron stone to ceramic masses to increase the fire resistance and acid resistance are known per se. As a novelty in the present case considered the use of a mixture of chrome iron stone and refractory clay, preferably in the approximate ratio of i to i for manufacture from Krählsteinen for stoves with a movable roasting sole. -This mix just owns compared to the abrasive effect of the hot, sharp-edged, baking zinc cover a very special resilience. The innovation is of far-reaching importance, for this increase in the viability of the Krählsteine is for the economy of the Furnace decisive. It will primarily depend on the durability of the crowstones dependent operating time is extended and the furnace operation is much cheaper as a result because the use of new Krählsteine requires a complete conversion of the furnace, the cost of which is always very considerable.

Claims (1)

PATENT-ANsPRUcH: Krählsteine für Röstöfen mit beweglicher Röstsohle, dadurch gekennzeichnet, daß sie aus einer Mischung von feuerfestem Ton und Chromeisenstein bestehen.PATENT CLAIM: Krählsteine for roasting ovens with movable roasting sole, characterized in that it is made from a mixture of refractory clay and chrome iron stone exist.
DE1919325970D 1919-11-16 1919-11-16 Kraehlsteine for Roestöefen Expired DE325970C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE325970T 1919-11-16

Publications (1)

Publication Number Publication Date
DE325970C true DE325970C (en) 1920-09-15

Family

ID=6183434

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1919325970D Expired DE325970C (en) 1919-11-16 1919-11-16 Kraehlsteine for Roestöefen

Country Status (1)

Country Link
DE (1) DE325970C (en)

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