DE1944309A1 - Spray nozzle for pasty masses, preferably for spraying routes in underground mining with air curtains - Google Patents
Spray nozzle for pasty masses, preferably for spraying routes in underground mining with air curtainsInfo
- Publication number
- DE1944309A1 DE1944309A1 DE19691944309 DE1944309A DE1944309A1 DE 1944309 A1 DE1944309 A1 DE 1944309A1 DE 19691944309 DE19691944309 DE 19691944309 DE 1944309 A DE1944309 A DE 1944309A DE 1944309 A1 DE1944309 A1 DE 1944309A1
- Authority
- DE
- Germany
- Prior art keywords
- spray nozzle
- masses
- underground mining
- pasty masses
- air curtains
- 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
Links
- 239000007921 spray Substances 0.000 title claims description 12
- 238000005065 mining Methods 0.000 title claims description 4
- 235000011837 pasties Nutrition 0.000 title claims description 3
- 238000005507 spraying Methods 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- DNXHEGUUPJUMQT-CBZIJGRNSA-N Estrone Chemical compound OC1=CC=C2[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 DNXHEGUUPJUMQT-CBZIJGRNSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
- B28C5/026—Mixing guns or nozzles; Injector mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
- B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
- B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/149—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed
- B05B7/1495—Spray pistols or apparatus for discharging particulate material with separate inlets for a particulate material and a liquid to be sprayed and with separate outlets for the particulate material and the liquid
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
Beschreibung und Erläuterung zur Patent- und Hilfsgebrauchsmusteranmeldung "Spritzdüse für pastenförmige Massen, vorzugsweise zum Ausspritzen von Strecken im Untertagebergbau mit Traglujtschleierft Es ist bekannt, Trocken-Spritzmassen oder auch pastenförmige Massen aus einem Druckkessel oder-auch Rotor-Spritzmaschinen mittels Druckluft durch einen Förderschlauch zu transportieren, um diese Massen dann am Ende des Förderschlauches über eine Spritzdüse auszutragen.Description and explanation of the patent and utility model registration "Spray nozzle for pasty masses, preferably for spraying out stretches In underground mining with Traglujtschleierft It is known, dry gunning or paste-like masses from a pressure vessel or rotor injection molding machines by means of compressed air through a conveyor hose to transport these masses then discharged at the end of the delivery hose via a spray nozzle.
Handelt es sich um feuchte Massen, so hat die Spritzdüse im überwiegenden Maße am Ende eine konische Form, um eine Zusatzbeschleunigung hinter dem Förderschlauch zu erzielen, wodurch ein "Herauspladdern" am Austrag vermieden werden soll.If it is a question of moist masses, the spray nozzle has predominantly Dimensions at the end of a conical shape to allow additional acceleration behind the conveyor hose to achieve, whereby a "peeling" should be avoided at the discharge.
Bei Spritzmassen, die z.B. aus einem Gips-Zement-Sand-Gemisch bestehen, die am Ende des Förderschlauches über Wassersprüheinrichtungen befeuchtet und über ein Mischrohr mit dem Wasser gex>unden werden sollen, um haftend an dem Ausbau angespritzt zu werden, bedient man sich ebenfalls einer konischen Auslaufstrecke, die als Misch rohr ausgebildet ist. Diese bekonnten Maßnahmen erfüllen den gewollten Zweck nur unvollständig, so daß es sich nicht vermeiden läßt, daß ein beträchtlicher Prozentsatz der Spritzmassen am Austragsmischrohr auf das Liegende fällt und zusätzlich ein weiterer Teil durch den Rückprall ebenfalls das Liegende verunreinigt. Beim Einsprühen mittels Pasten oder auch gipsartigen feuerfesten Massen bedeutet das einen zusätzlichen Gefahrenherd für den Vrbeiter,da ein Ausrutschen gefördert wird. Um die Nachteile ies Pladderns am Düsenaustragund des Rückpralls gänzlich zu vermeiden wird erfindungsgemäß vorgeschlagen, eine Spritzdüse entsprechend beiliegender Zeichnung zu verwenden.In the case of gunning mixes consisting, for example, of a gypsum-cement-sand mixture, which is moistened at the end of the delivery hose via water spraying devices and via a mixing pipe with the water should be gex> unden in order to adhere to the expansion to be injected, one also uses a conical outlet section, which is designed as a mixing tube. These well-known measures fulfill the intended ones Purpose only incomplete, so that it cannot be avoided that a considerable Percentage of the spray mass on the discharge mixing pipe falls on the horizontal and additionally another part also contaminates what is lying down due to the rebound. At the This means spraying with pastes or gypsum-like refractory masses an additional source of danger for the worker, as slipping is encouraged. In order to completely avoid the disadvantages of pattering at the nozzle discharge and the rebound is proposed according to the invention, a spray nozzle according to the accompanying drawing to use.
In der Zeichnung ist dargestellt, mit (1) der Ansatzpunkt der Spritzdüse mit dem Förderschlauch. Durch diesen Förderschlaucn werden die zu spritzenden Massen durch-Druckluft im Bereich der Wassereinsprühung (2) gefördert, hier durch die Wassereinsprühung befeuchtet und in der Mischrohrstrecke (3) bei trockenen Massen mit Wasser benetzt. Im Punkt (4) war bisher entsprechend dem Stand der Technik das Austragsende.In the drawing it is shown with (1) the starting point of the spray nozzle with the delivery hose. Through this delivery hose will the The masses to be sprayed are conveyed by compressed air in the area of the water injection (2), here moistened by the water spray and in the mixing pipe section (3) dry masses wetted with water. In point (4) was previously according to the status technology is the end of discharge.
Hier setzt nun die eigentliche Erfindung ein. Hinter diesem bisherigen Austragsende wird ein Druckluft beaufschlagter Ringstrahlaustrag (5) angesetzt, wobei der Ringstrahl vorzugsweise so ausgeführt ist, daß die Druckluft zum Teil nach innen in den austretenden Strahl eingelenkt wird, so daß die ringstrahlförmig austretende Druckluft mit der Tendenz der Einschnürung einen Druckluftschleier um die auszutragende Masse legt und somit ein Abfallen der aus dem Mischrohr austretenden Massen verhindert, wobei dieser Strahl die Masse bis an den Stoß oder das Mauerwerk gegen Herabfallen abschirmt und zusätzlich beim Auftreffen der Massenteile das Ausschleudern durch diesen ringförmigen Luftschleierstrahl verhindert, wodurch Rückprall und "Herauspladdern" vermieden werden.This is where the actual invention comes in. Behind this previous one At the end of the discharge, a compressed air-pressurized ring jet discharge (5) is attached, wherein the ring jet is preferably designed so that the compressed air is partially is deflected inwards into the exiting jet, so that the ring-shaped escaping compressed air with the tendency to constriction around a compressed air curtain the mass to be discharged sets and thus a fall of the emerging from the mixing tube Prevents masses, this beam pushing the mass up to the joint or the masonry Shields against falling and additionally the ejection when the mass parts hit prevented by this ring-shaped air curtain jet, which causes rebound and "plopping out" be avoided.
Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, als Spritzdüse eine Vorrichtung zu verwenden, die am Austrag eine druckluftschleierförmige Bewährung vorzugsweise in R-ingform garantiert.Of course, the invention is not limited to the above in detail Forms of training shown and described are limited, but there are numerous Modifications are possible, but without deviating from the basic idea, as a spray nozzle to use a device that has a compressed air curtain-shaped probation at the discharge preferably guaranteed in ring form.
Patent- und Hilfsgebrauchsmusteransprüche: Patent and utility model claims:
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691944309 DE1944309A1 (en) | 1969-09-01 | 1969-09-01 | Spray nozzle for pasty masses, preferably for spraying routes in underground mining with air curtains |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691944309 DE1944309A1 (en) | 1969-09-01 | 1969-09-01 | Spray nozzle for pasty masses, preferably for spraying routes in underground mining with air curtains |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1944309A1 true DE1944309A1 (en) | 1971-03-11 |
Family
ID=5744302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691944309 Pending DE1944309A1 (en) | 1969-09-01 | 1969-09-01 | Spray nozzle for pasty masses, preferably for spraying routes in underground mining with air curtains |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1944309A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0007683A1 (en) * | 1978-05-26 | 1980-02-06 | Blue Circle Industries Limited | Static mixer and method of mixing fluids |
DE3010082A1 (en) * | 1980-03-15 | 1981-09-24 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Self-advancing mine roof support - has three roof support elements spaced apart along abutment in pivotal manner adjacent work face |
US4801090A (en) * | 1985-10-09 | 1989-01-31 | Hochiki Corp. | Discharge pipe and discharge apparatus using the same |
US4826084A (en) * | 1986-09-26 | 1989-05-02 | Wallace Norman R | Sheathed jet fluid dispersing apparatus |
DE3903437A1 (en) * | 1989-02-06 | 1990-08-09 | Ruhrkohle Ag | Arrangement for constructing dams in underground working from powdery construction material and from dam casings |
FR2661929A1 (en) * | 1990-05-14 | 1991-11-15 | Screg Routes & Travaux | Device for manufacturing an intermediate layer in a road covering on the ground |
FR2701759A1 (en) * | 1993-02-19 | 1994-08-26 | York France Sa | Improvement with snow cannons. |
-
1969
- 1969-09-01 DE DE19691944309 patent/DE1944309A1/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0007683A1 (en) * | 1978-05-26 | 1980-02-06 | Blue Circle Industries Limited | Static mixer and method of mixing fluids |
DE3010082A1 (en) * | 1980-03-15 | 1981-09-24 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Self-advancing mine roof support - has three roof support elements spaced apart along abutment in pivotal manner adjacent work face |
US4801090A (en) * | 1985-10-09 | 1989-01-31 | Hochiki Corp. | Discharge pipe and discharge apparatus using the same |
US4826084A (en) * | 1986-09-26 | 1989-05-02 | Wallace Norman R | Sheathed jet fluid dispersing apparatus |
DE3903437A1 (en) * | 1989-02-06 | 1990-08-09 | Ruhrkohle Ag | Arrangement for constructing dams in underground working from powdery construction material and from dam casings |
FR2661929A1 (en) * | 1990-05-14 | 1991-11-15 | Screg Routes & Travaux | Device for manufacturing an intermediate layer in a road covering on the ground |
FR2701759A1 (en) * | 1993-02-19 | 1994-08-26 | York France Sa | Improvement with snow cannons. |
WO1994019655A1 (en) * | 1993-02-19 | 1994-09-01 | York France Airchal | Improved snow gun |
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