DE1082175B - Device for the continuous production of gunpowder and propellants - Google Patents

Device for the continuous production of gunpowder and propellants

Info

Publication number
DE1082175B
DE1082175B DED29837A DED0029837A DE1082175B DE 1082175 B DE1082175 B DE 1082175B DE D29837 A DED29837 A DE D29837A DE D0029837 A DED0029837 A DE D0029837A DE 1082175 B DE1082175 B DE 1082175B
Authority
DE
Germany
Prior art keywords
screw
propellants
gunpowder
continuous production
ratio
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.)
Pending
Application number
DED29837A
Other languages
German (de)
Inventor
Dipl-Chem Hans Freyer
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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
Priority claimed from DED26179A external-priority patent/DE1048212B/en
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Priority to DED29837A priority Critical patent/DE1082175B/en
Priority to CH7935259A priority patent/CH377260A/en
Priority to AT778959A priority patent/AT234567B/en
Priority to BE584086A priority patent/BE584086R/en
Priority to FR810272A priority patent/FR76607E/en
Publication of DE1082175B publication Critical patent/DE1082175B/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0033—Shaping the mixture
    • C06B21/0075—Shaping the mixture by extrusion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Colloid Chemistry (AREA)

Description

Vorrichtung zur kontinuierlichen Herstellung von Schießpulvern und Treibsätzen Es ist bekannt, rauchschwache Pulver ohne Lösungsmittel mittels einer Schneckenpresse mit Seiher herzustellen, wobei das Wasser aus der Pulverrohmasse weitgehendst abgepreßt wird. Weiterhin wird die feuchte Nitrocellulose in beheizten Mischvorrichtungen, so z. B. in Mischschnecken, bearbeitet, wobei das Sprengöl aufgedüst wird.Device for the continuous production of gunpowder and Propellant charges It is known to use a low-smoke powder without a solvent Manufacture screw press with colander, with the water from the raw powder mass is largely squeezed. Furthermore, the moist nitrocellulose is heated in Mixing devices, e.g. B. in mixing screws, processed, wherein the explosive oil is sprayed will.

Es sind auch Vorrichtungen zur kontinuierlichen Herstellung von Schießpulvern und Treibsätzen bekanntgeworden, bei denen seiherlose Doppel- und Mehrspindelschneckenpressen benutzt werden. Beim Pressen von Kunststoffen auf Schneckenpressen (Einspindel- und Mehrspindelschneckenpressen) wird die Länge der Schneckenspindeln und Gehäuse so gewählt, daß das Verhältnis zwischen Schneckenspindeldurchmesser zur Länge zwischen 1:10 und 1:20 liegt (10 D und 20 D). Dieses Verhältnis ist notwendig, um die Kunststoffe in den für ihre Verformung erforderlichen Verflüssigungszustand zu bringen.There are also devices for the continuous production of gunpowder and propellants became known, in which strainerless double and multi-spindle screw presses to be used. When pressing plastics on screw presses (single-spindle and multi-spindle screw presses) is the length of the screw spindles and housing chosen so that the ratio between screw spindle diameter to length between 1:10 and 1:20 (10 D and 20 D). This ratio is necessary to the plastics bring them into the liquefaction state required for their deformation.

Wird bei der Herstellung von Schießpulvern und Treibsätzen Nitrocellulose mit Nitroglycerin vermischt, so löst sich die Nitrocellulose zum Teil in Nitroglycerin auf und bildet, sobald sie im Überschuß vorhanden ist, eine feste Lösung. Ähnlich wirken die im Nitroglycerin löslichen Stabilisatoren und Weichmacher. Die zur Herstellung z. B. von Polpulver notwendige gemischte Masse (Mischung von 40 bis 70°/o Nitrocellulose und 30 bis 60°/o Nitroglycerin und 0 bis 10% Weichmacher bzw. Stabilisatoren) bildet relativ schnell ein fertiges Gel, ; aus dem lediglich das Wasser und die Luft entfernt werden müssen.Used in the manufacture of gunpowder and propellants nitrocellulose mixed with nitroglycerin, the nitrocellulose partially dissolves in nitroglycerin and, as soon as it is present in excess, forms a solid solution. Similar The stabilizers and plasticizers that are soluble in nitroglycerine work. The one used to manufacture z. B. mixed mass required of pole powder (mixture of 40 to 70% nitrocellulose and 30 to 60% nitroglycerin and 0 to 10% plasticizers or stabilizers) a finished gel relatively quickly; from which only the water and air are removed Need to become.

Es wurde nun gefunden, daß man die Schneckenpressen bedeutend kürzer gestalten kann, wobei trotzdem eine Gelatinierung und Homogenisierung der Schießpulver und Treibsätze eintritt. Hierbei hat die verwendete Schneckenpresse nicht mehr als drei Schneckengänge, wobei das Verhältnis von Schneckendurchmesser zur Schneckenlänge den Wert 5 nicht wesentlich übersteigt.It has now been found that the screw presses can be made significantly shorter can shape, with a gelatinization and homogenization of the gunpowder and propellants occur. The screw press used does not have more than three screw flights, with the ratio of screw diameter to screw length does not significantly exceed the value 5.

Hierdurch ergeben sich folgende Vorteile: Die Gefahr einer Überbeanspruchung der Pulvermassen durch Reibungsdruck wird vermindert. Die Verweilzeit der Pulvermasse in der Vorrichtung wird verkürzt, wodurch eine Verbesserung der Stabilität eintritt. Durch die Verwendung derartiger Schnecken wird die Lagerung und die Vorrichtung weitgehend verkürzt. Daneben ist die Gefahr einer Verdrillung der Schnecken gegeneinander vermindert, so daß hierdurch die Möglichkeit gegeben ist, Schnecken größeren Kalibers zu bauen und damit auch größerkalibrige Schießpulver- und Treibsätze herzustellen.This has the following advantages: The risk of overuse the powder masses due to frictional pressure is reduced. The residence time of the powder mass in the device is shortened, whereby an improvement in stability occurs. By using such screws, the storage and the device largely shortened. There is also the risk of the screws twisting against each other reduced, so that this gives the possibility of larger caliber snails to build and use it to produce larger-caliber gunpowder and propellant charges.

Claims (1)

PATENTANSPRUCH: Vorrichtung zur kontinuierlichen Herstellung von geformten Schieß- und Treibmitteln mit oder ohne Verwendung von Lösungsmitteln und unter Anwendung von Schneckenpressen, dadurch gekennzeichnet, daß die verwendete Schneckenpresse nicht mehr als drei Schneckengänge hat und daß das Verhältnis von Schneckendurchmesser zur Schneckenlänge den Wert von 5 nicht wesentlich übersteigt. in Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 1013 555, 1053 373; deutsche Auslegeschrift Nr. 1023 385.Claim: Device for the continuous production of shaped shooting and propellants with or without the use of solvents and using screw presses, characterized in that the screw press used has no more than three screw flights and that the ratio of screw diameter to screw length is not 5 significantly exceeds. Considered publications: German Patent Specifications No. 1 013 555, 1053 373; German interpretative document No. 1023 385.
DED29837A 1957-08-09 1959-01-23 Device for the continuous production of gunpowder and propellants Pending DE1082175B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DED29837A DE1082175B (en) 1957-08-09 1959-01-23 Device for the continuous production of gunpowder and propellants
CH7935259A CH377260A (en) 1957-08-09 1959-10-13 Device for the continuous production of gunpowder and propellants
AT778959A AT234567B (en) 1957-08-09 1959-10-28 Device for the continuous production of guns and propellants
BE584086A BE584086R (en) 1959-01-23 1959-10-28 Method and device for the continuous manufacture of propellant powders and fuel products.
FR810272A FR76607E (en) 1957-08-09 1959-11-16 Process and device for the continuous manufacture of powders and explosives

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED26179A DE1048212B (en) 1957-08-09 1957-08-09 Device for the continuous production of gunpowder and propellants
DED29837A DE1082175B (en) 1957-08-09 1959-01-23 Device for the continuous production of gunpowder and propellants

Publications (1)

Publication Number Publication Date
DE1082175B true DE1082175B (en) 1960-05-19

Family

ID=8721341

Family Applications (1)

Application Number Title Priority Date Filing Date
DED29837A Pending DE1082175B (en) 1957-08-09 1959-01-23 Device for the continuous production of gunpowder and propellants

Country Status (4)

Country Link
AT (1) AT234567B (en)
CH (1) CH377260A (en)
DE (1) DE1082175B (en)
FR (1) FR76607E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213325B (en) * 1962-11-21 1966-03-24 Aerojet General Co Process for the production of solid propellants

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023385B (en) * 1943-01-16 1958-01-23 Wasagchemie Ag Process for the production of low-smoke powder without solvents

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1023385B (en) * 1943-01-16 1958-01-23 Wasagchemie Ag Process for the production of low-smoke powder without solvents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213325B (en) * 1962-11-21 1966-03-24 Aerojet General Co Process for the production of solid propellants

Also Published As

Publication number Publication date
CH377260A (en) 1964-04-30
FR76607E (en) 1961-11-10
AT234567B (en) 1964-07-10

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