EP0288505A1 - Verfahren zum herstellen von treibladungspulver. - Google Patents
Verfahren zum herstellen von treibladungspulver.Info
- Publication number
- EP0288505A1 EP0288505A1 EP87906819A EP87906819A EP0288505A1 EP 0288505 A1 EP0288505 A1 EP 0288505A1 EP 87906819 A EP87906819 A EP 87906819A EP 87906819 A EP87906819 A EP 87906819A EP 0288505 A1 EP0288505 A1 EP 0288505A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- powder
- continuously
- roller
- extruder
- shear roller
- 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.)
- Granted
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
-
- 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
-
- 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
- C06B21/0041—Shaping the mixture by compression
Definitions
- the invention relates to a method for producing propellant charge powder, in particular two-base POL powder from water-moist powder raw material, according to the preamble of claim 1.
- the invention is based on the object of specifying a method of the type mentioned at the outset which, on the one hand, can be carried out continuously but on the other hand in a very reliable manner.
- an open shear roller known per se is used for kneading.
- the kneading process runs continuously on this.
- the raw powder mass is continuously added in the area of one end of the shear roller and then gradually transported to the other end of the shear roller in the course of kneading.
- the granulating process is directly connected to the kneading process. This can e.g. happen in such a way that by means of a pelletizing head at the removal end of the shear roller, granulate is punched out directly from the fur arriving there and transported away.
- An extruder is preferably used to press the granules in connection with the process according to the invention.
- the resulting granulate can be entered continuously in this. Then you have a production process that is completely continuous from the addition of the raw powder mass to the formation of the powder strands. Since no kneading with its high thermal and mechanical load on the powder mass needs to take place or should not take place in the extruder used for the pressing, there are also no unusual safety problems here. It is particularly favorable here that the resulting granulate can be fed to the extruder directly from the shear roller while it is still warm. Since no long warm-up zones are then necessary in the extruder, this can be very short.
- the amount of propellant powder enclosed in the extruder is correspondingly small, which is favorable for safety.
- the energy costs required to heat the extruder are reduced. After all, warm powder is more plastic and deforms more easily under mechanical stress. The warm powder therefore reduces the risk of deflagration when the extruder is subjected to mechanical loads.
- propellant powder can be produced in a practically ideal manner.
- the process can run completely continuously, can be remotely controlled and monitored, is far above average safe, also because there is always only a relatively small amount of product on the shear roller, and finally leads to a particularly high powder quality, especially in terms of stability.
- the method according to the invention is explained in more detail below with further advantageous details using a drawing.
- the only figure in the drawing shows schematically a shear roller or a shear roller plant and a downstream extruder for producing two-base POL powder, ie powder which is produced in a single process.
- the known shear roller or the shear roller mechanism 1 comprises two rollers 2 and 3 arranged horizontally next to one another, which are driven in opposite directions in the direction of the arrows 4.
- Each roller 2 and 3 has its own drive, which allows a stepless speed control, so that working with friction is possible over the entire speed range.
- Hydrostatic drives are used for the hazardous area.
- the rear roller 2 in the figure is set hydraulically against the front roller 3.
- the roller gap can be adjusted to a width between 0.5 and 5 mm via the front roller 3.
- Both rollers 2 and 3 can be tempered from the inside to a temperature between 20 and 120 ° C. by means of a heat transfer medium.
- the rollers 2 and 3 are each provided with spiral shear grooves 5 which have a product-specific geometry which is expressed in the groove width, groove depth, pitch angle and number of shear grooves.
- the scissor grooves 5 are designed in such a way that the processed product is continuously transported from the front end in the figure, the feed end 6, to the rear discharge end 7.
- a metering unit 9 is arranged above the feed end 6, From which water-moist pulp raw material for the production of dibasic POL powder, which has a moisture content of approx. 30%, is added to the shear roller. There, the raw powder mass is kneaded in the nip. A fur of raw material forms over the entire length of the roller on the front roller 3. The two rollers are kept at an elevated temperature by means of the heat transfer medium. A kneaded product stock gathers above the roller gap, from which the water is pressed out. Due to the intensive kneading and transporting effect of the shear roller 2, 3, the beginning of the gelatinization with a gray-white coloration of the powder mass is already visible after walking through about a third of the roller length.
- the mass skin After two thirds of the length of the roller, the mass skin has already changed to a dark shade of gray. At the end of delivery 7, the mass skin is finally gelatinized and appears transparent black.
- the temperature, the nip width of the nip and thus also the nip pressure and the rotational speeds of the two rollers 2 and 3 are selected so that the gelatinized powder skin still has a residual moisture content of approx. 1% at the end of the delivery.
- the temperature of the two rolls is between 70 and 110 ° C.
- the temperature of the rear roller is kept a few degrees lower than that of the front roller. This causes the fur to adhere to the front roller.
- the heating of the two rollers is advantageous in such a way that there is a temperature gradient in the axial direction with a drop in temperature towards the discharge end 7.
- the temperature difference between feed end 6 and discharge end 7 is chosen so that the fur is transported everywhere at approximately the same speed.
- a typical value for the temperature difference is 30 ° C.
- the speed of the rollers should be between 30 and 70 rpm, the front roller on which the fur is located being the higher . Has speed.
- a suitable steepness of the shear grooves 5 is between 30 to 60 ° relative to the roller axis.
- the shear grooves have the same slope over the entire length of the shear roller. So it can be advantageous to make the slope of the scissor grooves near the feed end 6 smaller than near the discharge end 7 in order to initially achieve a relatively longer dwell time of the fur behind the feed end, which ensures a good squeezing of the what ⁇ sers enables.
- the depth of the shear grooves is expediently between 0.4 and 2.5 mm. Overall, the residence time of the raw powder mass on the shear roller should be between 3 and 8 minutes.
- the sharpening takes place, for example, in such a way that one to three normal hydrochloric acid is applied to the roller surface at 50 to 100 ° C. Here, the roller runs at a slow number of revolutions. When the hydrochloric acid has evaporated, the roller surface is washed off with water. The appropriate surface roughness is achieved with this treatment.
- the still warm granules 8 fall into the receiving funnel 11 of an extruder 10, in which the granules are pressed into powder strands by a die 12.
- the extruder 10 has only one screw conveyor 13 inside and no kneading elements.
- the extruder is only shown schematically; in practice it can be a twin-screw extruder.
- the powder strands which emerge continuously from the die or shaping nozzle 12 are transported in a manner not shown by means of a treadmill into a cutting space and are continuously cut there to form the actual powder, which is then optionally subjected to an aftertreatment.
- the extruder should have a length of at least 20 cm and be heatable and coolable.
- the shear roller 1 There are only 2-3 kg of powder on the shear roller 1. This is very convenient for security.
- the two rollers 2 and 3 are self-cleaning, so that a quick product change is possible.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Glanulating (AREA)
- Medicinal Preparation (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Detergent Compositions (AREA)
- Formation And Processing Of Food Products (AREA)
- Fodder In General (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87906819T ATE73436T1 (de) | 1986-10-16 | 1987-10-08 | Verfahren zum herstellen von treibladungspulver. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3635296A DE3635296C2 (de) | 1986-10-16 | 1986-10-16 | Verfahren zum Herstellen von Treibladungspulver |
DE3635296 | 1986-10-16 | ||
PCT/EP1987/000585 WO1988002743A1 (en) | 1986-10-16 | 1987-10-08 | Process for manufacturing powder for propulsive charges |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0288505A1 true EP0288505A1 (de) | 1988-11-02 |
EP0288505B1 EP0288505B1 (de) | 1992-03-11 |
EP0288505B2 EP0288505B2 (de) | 1998-06-17 |
Family
ID=6311878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87906819A Expired - Lifetime EP0288505B2 (de) | 1986-10-16 | 1987-10-08 | Verfahren zum herstellen von treibladungspulver |
Country Status (19)
Country | Link |
---|---|
US (1) | US4963296A (de) |
EP (1) | EP0288505B2 (de) |
JP (1) | JP2681183B2 (de) |
KR (1) | KR960000756B1 (de) |
CN (1) | CN1015170B (de) |
AR (1) | AR246729A1 (de) |
AU (2) | AU8107187A (de) |
BR (1) | BR8707506A (de) |
CA (1) | CA1304942C (de) |
DE (2) | DE3635296C2 (de) |
EG (1) | EG20112A (de) |
ES (1) | ES2007423A6 (de) |
FI (1) | FI92581C (de) |
GR (1) | GR871431B (de) |
IL (1) | IL83998A (de) |
IN (1) | IN169922B (de) |
PT (1) | PT85927B (de) |
WO (1) | WO1988002743A1 (de) |
ZA (1) | ZA877700B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2606418C1 (ru) * | 2015-07-30 | 2017-01-10 | Валерий Гургенович Джангирян | Способ получения тонкосводного пороха для патронов стрелкового оружия и специального назначения |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3838646A1 (de) * | 1988-11-15 | 1990-05-17 | Wolff Walsrode Ag | Phlegmatisierte nitrocellulosegemische |
DE3838645A1 (de) * | 1988-11-15 | 1990-05-17 | Wolff Walsrode Ag | Verfahren zur herstellung phlegmatisierter nitrocellulosegemische |
JPH0777992B2 (ja) * | 1989-05-11 | 1995-08-23 | ヴェー エヌ ツェー ニトロヘミー ゲゼルシャフト ミト ベシュレンクテル ハフツング | トリベース推進装薬粉末を製造する方法及びその装置 |
DE4012294C1 (de) * | 1989-05-11 | 1991-02-14 | Wnc-Nitrochemie Gmbh, 8261 Aschau, De | |
SE465572B (sv) * | 1989-06-21 | 1991-09-30 | Nobel Kemi Ab | Saett och anordning foer framstaellning av explosiva substanser |
US5084218A (en) * | 1990-05-24 | 1992-01-28 | Trw Vehicle Safety Systems Inc. | Spheronizing process |
US5349892A (en) * | 1991-11-06 | 1994-09-27 | Alliant Techsystems Inc. | Propellant stick kerfing apparatus and method |
EP0681591B1 (de) * | 1993-01-29 | 1999-05-06 | The Valspar Corporation | Beschichtungszusammensetzung aus einem hydroxyfunktionellen blockcopolymer polyester |
DE4402047C2 (de) * | 1994-01-25 | 1995-12-07 | Bayern Chemie Gmbh Flugchemie | Verfahren zur Herstellung einer gaserzeugenden Masse |
FR2723086B1 (fr) * | 1994-07-29 | 1996-09-13 | Poudres & Explosifs Ste Nale | Procede continu de fabrication sans solvant de produits pyrotechniques composites |
HU219501B (hu) * | 1994-09-16 | 2001-04-28 | Hagedorn Ag. | Eljárás és berendezés képlékenyített cellulóz-nitrát előállítására |
FR2749008B1 (fr) * | 1996-05-23 | 1998-06-26 | Poudres & Explosifs Ste Nale | Procede continu de fabrication sans solvant de produits pyrotechniques composites thermodurcissables |
DE50009362D1 (de) * | 2000-06-15 | 2005-03-03 | Nitrochemie Wimmis Ag Wimmis | Verfahren zur Herstellung eines funktionalen hochenergetischen Materials |
US20090208647A1 (en) * | 2000-06-15 | 2009-08-20 | Nitrochemie Wimmis Ag | Method for producing a funtional, high-energy material |
DE10152397B4 (de) * | 2001-10-24 | 2009-08-06 | BOWAS AG für Industrievertrieb | Herstellung von lösungsmittelfreiem Treibladungspulver |
DE102008059740B3 (de) * | 2008-12-01 | 2010-04-29 | Bowas AG für Industrieplanung | Verfahren zur Herstellung von Explosivstoffen |
US8062563B2 (en) | 2009-12-14 | 2011-11-22 | Bowas AG für Industrieplanung | Method of manufacturing explosives |
EP2332894A1 (de) * | 2009-12-14 | 2011-06-15 | Bowas AG für Industrieplanung | Verfahren und Herstellung von Explosivstoffen |
CN102276370B (zh) * | 2010-06-13 | 2012-11-28 | 无锡锡东能源科技有限公司 | 火药螺杆连续成型机 |
KR101301502B1 (ko) * | 2011-03-16 | 2013-08-29 | 주식회사 유림기계 | 톱밥 제조기의 목재 인입장치 |
CN103483113B (zh) * | 2013-08-28 | 2016-06-22 | 辽宁天亿机械有限公司 | 双出料压片机火药专用强迫加料机构 |
CN103524276B (zh) * | 2013-09-26 | 2016-01-20 | 中煤科工集团淮北爆破技术研究院有限公司 | 用于乳化炸药基质的敞开式冷却装置 |
CN103980071A (zh) * | 2014-05-06 | 2014-08-13 | 西安近代化学研究所 | 一种用于炸药捏合碾片的滚筒装置 |
CN104016818B (zh) * | 2014-05-29 | 2017-04-05 | 山东大学 | 一种多功能乳化炸药切割装置及其方法 |
CN104950056B (zh) * | 2015-07-14 | 2017-03-01 | 西安近代化学研究所 | 一种叠氮硝胺吸收药样品制备方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2384521A (en) * | 1940-04-16 | 1945-09-11 | Celanese Corp | Method for extruding thermoplastic compositions |
CH317908A (de) * | 1951-07-12 | 1956-12-15 | Hispano Suiza S A Tanger | Verfahren zur Herstellung von Explosivkörpern |
AT196293B (de) * | 1955-03-08 | 1958-03-10 | Prb Nv | Vorrichtung zum Verformen thixotroper Massen |
US2874604A (en) * | 1956-03-22 | 1959-02-24 | Prb Nv | Apparatus for molding plastic explosive materials |
US2875985A (en) * | 1957-10-30 | 1959-03-03 | Farrel Birmingham Co Inc | Heat exchange roll |
BE625193A (de) * | 1962-01-19 | |||
US3298215A (en) * | 1962-11-29 | 1967-01-17 | Beteiligungsund Patentverwaltu | Rolling mill stand |
US3354010A (en) * | 1967-01-27 | 1967-11-21 | John D Hopper | Flexible explosive containing rdx and/or rmx and process therefor |
US3548742A (en) * | 1967-05-12 | 1970-12-22 | Werner & Pfleiderer | Apparatus for continuously processing pulverulent or granular feeds |
DE1679880A1 (de) * | 1967-05-12 | 1972-03-09 | Werner & Pfleiderer | Einrichtung zum kontinuierlichen Aufbereiten plastischer Massen |
US3731584A (en) * | 1967-06-13 | 1973-05-08 | Rockwell International Corp | Automatic propellant feed system |
FR1596363A (de) * | 1968-01-02 | 1970-06-15 | ||
CH498060A (de) * | 1968-01-02 | 1970-10-31 | Dynamit Nobel Ag | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von rauchlosem Pulver ohne Lösungsmittel |
DE2316538C3 (de) * | 1973-04-03 | 1982-05-06 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Herstellung von Gudol- Pulver |
DE2461646C2 (de) * | 1974-12-27 | 1984-01-05 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zur Herstellung von Treibladungspulvern |
FR2325491A1 (fr) * | 1975-09-25 | 1977-04-22 | Poudres & Explosifs Ste Nale | Procede de boudinage des compositions pyrotechniques, et boudineuse a vis |
SE437511B (sv) * | 1979-04-24 | 1985-03-04 | Bofors Ab | Sett att framstella sammanhengande kroppar av dubbelbasraketkrut |
EP0148966B2 (de) * | 1984-01-16 | 1991-01-16 | August Dr.-Ing. Albers | Kontinuierliches Misch- und Scherwalzwerk |
-
1986
- 1986-10-16 DE DE3635296A patent/DE3635296C2/de not_active Expired - Fee Related
-
1987
- 1987-09-16 GR GR871431A patent/GR871431B/el unknown
- 1987-09-23 IL IL83998A patent/IL83998A/xx not_active IP Right Cessation
- 1987-10-08 AU AU81071/87A patent/AU8107187A/en not_active Abandoned
- 1987-10-08 KR KR1019880700671A patent/KR960000756B1/ko not_active IP Right Cessation
- 1987-10-08 JP JP62506630A patent/JP2681183B2/ja not_active Expired - Fee Related
- 1987-10-08 BR BR8707506A patent/BR8707506A/pt not_active IP Right Cessation
- 1987-10-08 WO PCT/EP1987/000585 patent/WO1988002743A1/de active IP Right Grant
- 1987-10-08 DE DE8787906819T patent/DE3777399D1/de not_active Expired - Lifetime
- 1987-10-08 US US07/228,921 patent/US4963296A/en not_active Expired - Lifetime
- 1987-10-08 EP EP87906819A patent/EP0288505B2/de not_active Expired - Lifetime
- 1987-10-13 EG EG58687A patent/EG20112A/xx active
- 1987-10-14 CN CN87106808A patent/CN1015170B/zh not_active Expired
- 1987-10-15 ES ES8702950A patent/ES2007423A6/es not_active Expired
- 1987-10-15 ZA ZA877700A patent/ZA877700B/xx unknown
- 1987-10-15 PT PT85927A patent/PT85927B/pt not_active IP Right Cessation
- 1987-10-15 IN IN805/CAL/87A patent/IN169922B/en unknown
- 1987-10-15 CA CA000549389A patent/CA1304942C/en not_active Expired - Lifetime
- 1987-10-16 AR AR87308973A patent/AR246729A1/es active
-
1988
- 1988-06-15 FI FI882858A patent/FI92581C/fi not_active IP Right Cessation
-
1991
- 1991-03-08 AU AU72753/91A patent/AU651087B2/en not_active Expired
Non-Patent Citations (1)
Title |
---|
See references of WO8802743A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2606418C1 (ru) * | 2015-07-30 | 2017-01-10 | Валерий Гургенович Джангирян | Способ получения тонкосводного пороха для патронов стрелкового оружия и специального назначения |
Also Published As
Publication number | Publication date |
---|---|
AU651087B2 (en) | 1994-07-14 |
FI92581B (fi) | 1994-08-31 |
CN87106808A (zh) | 1988-04-27 |
EP0288505B1 (de) | 1992-03-11 |
EG20112A (en) | 1997-07-31 |
ES2007423A6 (es) | 1989-06-16 |
DE3635296C2 (de) | 1995-12-21 |
WO1988002743A1 (en) | 1988-04-21 |
AU7275391A (en) | 1991-07-11 |
FI92581C (fi) | 1994-12-12 |
CA1304942C (en) | 1992-07-14 |
EP0288505B2 (de) | 1998-06-17 |
CN1015170B (zh) | 1991-12-25 |
DE3635296A1 (de) | 1988-04-28 |
JP2681183B2 (ja) | 1997-11-26 |
FI882858A (fi) | 1988-06-15 |
DE3777399D1 (de) | 1992-04-16 |
PT85927B (pt) | 1993-07-30 |
IL83998A0 (en) | 1988-02-29 |
KR880701695A (ko) | 1988-11-04 |
JPH01501140A (ja) | 1989-04-20 |
GR871431B (en) | 1987-12-14 |
IN169922B (de) | 1992-01-11 |
FI882858A0 (fi) | 1988-06-15 |
AR246729A1 (es) | 1994-09-30 |
US4963296A (en) | 1990-10-16 |
ZA877700B (en) | 1988-04-19 |
PT85927A (pt) | 1988-11-30 |
BR8707506A (pt) | 1989-02-21 |
IL83998A (en) | 1991-12-15 |
KR960000756B1 (ko) | 1996-01-12 |
AU8107187A (en) | 1988-05-06 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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