DE437750C - Process for preventing explosions in carbide grinding rooms - Google Patents

Process for preventing explosions in carbide grinding rooms

Info

Publication number
DE437750C
DE437750C DEG65341D DEG0065341D DE437750C DE 437750 C DE437750 C DE 437750C DE G65341 D DEG65341 D DE G65341D DE G0065341 D DEG0065341 D DE G0065341D DE 437750 C DE437750 C DE 437750C
Authority
DE
Germany
Prior art keywords
preventing explosions
carbide grinding
carbide
coal
rooms
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
DEG65341D
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.)
GRAEFLICH SCHAFFGOTSCH SCHE WE
Original Assignee
GRAEFLICH SCHAFFGOTSCH SCHE WE
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 GRAEFLICH SCHAFFGOTSCH SCHE WE filed Critical GRAEFLICH SCHAFFGOTSCH SCHE WE
Priority to DEG65341D priority Critical patent/DE437750C/en
Application granted granted Critical
Publication of DE437750C publication Critical patent/DE437750C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10H—PRODUCTION OF ACETYLENE BY WET METHODS
    • C10H21/00—Details of acetylene generators; Accessory equipment for, or features of, the wet production of acetylene

Description

Verfahren zur Verhütung von Explosionen in Carbidmahlräumen. Um beim Mahlen von Carbid in mit geschlossenen Mahlräumen ausgestatteten Mahlmaschinen das Eintreten von Explosionen hintanzuhalten, ist vorgeschlagen worden, das Mahlen in einer Atmosphäre von trockenem Stickstoff vorzunehmen. Die Herstellung von reinem und-trockenem Stickstoff ist teuer, da hierzu ein verhältnismäßig großer Aufwand an Maschinen, Apparaten und Kraft notwendig ist. In der Getreidemüllerei wie auch in der Hartzerkleinerung ist es bekannt, in die I Mahlanlage ein sauerstoffarmes oder sauerstofffreies Gas einzuleiten, damit Explosionen während der Vermahlung vermieden werden; dazu werden die in öfen oder. Generatoren erzeugten Rauchgase oder gekühlte Auspuffgase eines Gasmotors oder Verbrennungsmotors oder Kohlensäure verwendet.Method for preventing explosions in carbide grinding rooms. To at the Milling of carbide in milling machines equipped with closed milling chambers To prevent explosions from occurring, it has been suggested that milling in an atmosphere of dry nitrogen. The manufacture of pure and dry nitrogen is expensive, since this is a relatively large effort of machines, apparatus and power is necessary. In the flour milling as well In hard comminution it is known to use a low-oxygen grinding plant in the I grinding plant or to introduce oxygen-free gas to prevent explosions during grinding be avoided; in addition, they are in ovens or. Generators produced smoke gases or cooled exhaust gases from a gas engine or internal combustion engine or carbon dioxide used.

Nach der Erfindung wird gewähnliche Luft, welcher der größere Teil ihrer Feuchtigkeit durch Trocknung mit Chlorcalciwm entzogen ist, durch eine glühende Säule möglichst wasserstoffarmer Kohle hindurchgeleitet. Die so gewonnenen Rauchgase bilden ein durchaus geeignetes Mittel, uni Explosionen zu verhüten, wenn sie bei Temperaturen über i 5o' angewendet werden. Der infolge Lufttrocknung und infolge der Anwendunc,#-he@oll(derer _ Kohlensorten, wie Elektrodenklein, geglühter Anthrazit, geglühter Koks, geringe Wasserdampfgehalt vermag auf das Carbid nicht einzuwirken, d. h. Acetylen zu bilden, solange die Temperatur .der Rauchgase mehr als i,5o° beträgt. Praktische Versuche haben ferner .ergeben, daß bei Verwendung so hergestellter Rauchgase auch trotz der Funkenbildung während des Mahlens keine ins Gewicht falfende Verbindung des Carbids mit der Kohlensäure der Rauchgase eintritt. Die Rauchgasbenutzung und Rauchgasherstellung im Sinne der Erfindung ist daher besonders vorteilhaft.According to the invention, ordinary air, which is the greater part their moisture is withdrawn by drying with Chlorcalciwm, by a glowing Column of low-hydrogen coal as possible passed through. The smoke gases obtained in this way form a perfectly suitable means of preventing explosions when they are at Temperatures above i 5o 'can be used. The as a result of air drying and as a result the application, # - he @ oll (of which _ types of coal, such as small electrodes, annealed anthracite, Annealed coke, low water vapor content cannot affect the carbide, d. H. To form acetylene as long as the temperature of the flue gases is more than 1.5o °. Practical tests have also shown that when smoke gases produced in this way are used even in spite of the spark formation during the grinding, no significant connection of the carbide enters with the carbonic acid of the flue gases. The use of flue gas and Flue gas production within the meaning of the invention is therefore particularly advantageous.

Claims (1)

PATENTA\SPRÜ CI1E: i. Verfahren zur Verhütung von Explosionen in Carbidmahlräumen unter Durchleiten von Rauchgasen, dadurch gekennzeichnet, daß die Rauchgase durch überleiten von getrockneter Luft durch eine glühende Kohlensäule gewonnen werden und mit einer Temperatur von über i 5o' durch die Mahlräume geschickt werden. z. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß zur Bildung der Rauchgase Kohlensorten verwendet werden, die besonders wasserstoffarm sind, wie Elektrodenklein, Petrolkoks und geglühter Anthrazit.PATENTA \ SPRÜ CI1E: i. Method for preventing explosions in carbide grinding rooms passing through flue gases, characterized in that the flue gases through Passing dried air through a glowing column of coal can be obtained and sent through the grinding chambers at a temperature of over 150 '. z. Method according to claim i, characterized in that for the formation of the smoke gases Types of coal are used that are particularly low in hydrogen, such as small electrodes, Petroleum Coke and Annealed Anthracite.
DEG65341D 1925-09-18 1925-09-18 Process for preventing explosions in carbide grinding rooms Expired DE437750C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG65341D DE437750C (en) 1925-09-18 1925-09-18 Process for preventing explosions in carbide grinding rooms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG65341D DE437750C (en) 1925-09-18 1925-09-18 Process for preventing explosions in carbide grinding rooms

Publications (1)

Publication Number Publication Date
DE437750C true DE437750C (en) 1926-11-26

Family

ID=7133684

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG65341D Expired DE437750C (en) 1925-09-18 1925-09-18 Process for preventing explosions in carbide grinding rooms

Country Status (1)

Country Link
DE (1) DE437750C (en)

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