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1. WO1990012772 - PROCESS AND DEVICE FOR PRODUCING MONOBASIC PROPELLANT POWDERS USING ALCOHOL AND ETHER AS SOLVENTS

Publication Number WO/1990/012772
Publication Date 01.11.1990
International Application No. PCT/EP1990/000615
International Filing Date 17.04.1990
IPC
B30B 11/22 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
22Extrusion presses; Dies therefor
B30B 15/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
34Heating or cooling presses or parts thereof
C06B 21/00 2006.01
CCHEMISTRY; METALLURGY
06EXPLOSIVES; MATCHES
BEXPLOSIVE OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
21Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
CPC
B30B 11/224
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
22Extrusion presses; Dies therefor
224Extrusion chambers
B30B 15/34
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
34Heating or cooling presses or parts thereof
C06B 21/0075
CCHEMISTRY; METALLURGY
06EXPLOSIVES; MATCHES
BEXPLOSIVES OR THERMIC COMPOSITIONS
21Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
0033Shaping the mixture
0075by extrusion
Applicants
  • WNC-NITROCHEMIE GMBH [DE]/[DE] (AllExceptUS)
  • MIEHLING, Wolfgang [DE]/[DE] (UsOnly)
Inventors
  • MIEHLING, Wolfgang
Agents
  • LIECK, Hans-Peter
Priority Data
P 39 13 603.525.04.1989DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON EINBASIGEN TREIBLADUNGSPULVERN MIT ALKOHOL UND ETHER ALS LÖSUNGSMITTEL
(EN) PROCESS AND DEVICE FOR PRODUCING MONOBASIC PROPELLANT POWDERS USING ALCOHOL AND ETHER AS SOLVENTS
(FR) PROCEDE ET DISPOSITIF POUR PRODUIRE DES POUDRES DE CHARGE PROPULSIVE MONOBASIQUES EN UTILISANT UN ALCOOL OU UN ETHER EN TANT QUE SOLVANT
Abstract
(DE)
Bei der Herstellung von einbasigen Treibladungspulvern mit Alkohol und Ether als Lösungsmittel besteht die Gefahr, daß Etherblasen im Treibladungs-Pulvermaterial entstehen, welche die Qualität des Treibladungspulvers erheblich vermindern. Erfindungsgemäß ist vorgesehen, daß das Treibladungs-Pulvermaterial vor dem Austritt aus der Extrudervorrichtung gekühlt wird. Dazu ist der Extruderkopf (4) mit einer Kühleinrichtung versehen. Die Erfindung ist insbesondere zur Herstellung von einbasigen Treibladungspulvern mit Alkohol und Ether als Lösungsmittel verwendbar.
(EN)
During the production of monobasic propellant powders using alcohol and ether as solvents, the danger exists that bubbles of ether may be formed in the propellant powder material. This may appreciably impair the quality of the propellant powder. The invention proposes that the propellant powder material be cooled before leaving the extrusion machine. To this end, the extruder head (4) is provided with a cooling device. The invention is particularly useful in the production of monobasic propellant powders using alcohol and ether as solvents.
(FR)
Le danger inhérent à la production de ce type de poudres réside dans le fait que des bulles d'éther se forment dans la poudre et en réduisent considérablement la qualité. La présente invention propose de refroidir la poudre de charge explosive avant qu'elle ne sorte du dispositif d'extrusion. Aussi la tête d'extrusion (4) est-elle munie d'un dispositif de refoidissement. Cette invention est conçue en particulier pour la fabrication de poudres de charge explosive monobasiques où un alcool ou un éther sert de solvant.
Also published as
FI906353
NO19905578
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