METHOD OF SPRAY APPLICATION, AND SPRAY APPARATUS, FOR BENTONITE MATERIAL

The present invention provides a spray method and spray apparatus for bentonite-based material that allow forming a bentonite layer of high dry density. A spray apparatus 1 comprises a supersonic nozzle 2, to which a compressor 5 and a bentonite container 6 are connected. The supersonic nozzle 2 is...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA, TOSHIYUKI, TOIDA, MASARU, ISOBE, TAKAHISA, KOBAYASHI, ICHIZO, NAKAJIMA, MAKOTO, SASAKURA, TAKESHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE DECONTAMINATION ARRANGEMENTS THEREFOR EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FORMS FOUNDATIONS GALLERIES HANDLING BUILDING MATERIALS ON THE SITE HYDRAULIC ENGINEERING LARGE UNDERGROUND CHAMBERS MINING MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING NOZZLES NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREPARING CLAY PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SCAFFOLDING SHAFTS SHUTTERING SOIL SHIFTING SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	The present invention provides a spray method and spray apparatus for bentonite-based material that allow forming a bentonite layer of high dry density. A spray apparatus 1 comprises a supersonic nozzle 2, to which a compressor 5 and a bentonite container 6 are connected. The supersonic nozzle 2 is fed compressed air from the compressor 5 and a bentonite-based material from the bentonite container 6. The compressed air, mixed with the bentonite-based material, is accelerated to supersonic speed when passing through a constriction portion 14 of the supersonic nozzle 2, and is sprayed at supersonic speed out of a jet orifice 11.