Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-05-29
1977-05-31
Emery, Stephen J.
Chemistry: physical processes
Physical processes
Crystallization
232728, 71 64C, 137268, 239310, B01D 1102
Patent
active
040266737
ABSTRACT:
Apparatus for introducing a preselected quantity of soluble fertilizer into a water stream in a fully dissolved state is disclosed. The apparatus includes a tank and a porous receptacle disposed within the tank and adapted to receive the fertilizer. The bottom of the receptacle is spaced upwardly from the bottom of the tank to provide a plenum volume beneath the receptacle at the bottom of the tank. Water is dispensed in a dispersed state onto the soluble fertilizer in the porous receptacle. The water drains through the fertilizer to dissolve it and the water containing the dissolved fertilizer passes through the porous receptacle and is collected in the plenum volume at the bottom of the tank. A float is provided for sensing the level of water in the plenum volume. A valve is connected to the float and interrupts the dispensing of water to the fertilizer when the level of water approaches the bottom of the porous receptacle. An outlet is provided at the bottom of the tank to supply the water containing the dissolved fertilizer in the plenum volume to the water stream.
REFERENCES:
patent: 664387 (1900-12-01), Doderlein
patent: 2239502 (1941-04-01), Gleason
patent: 2501260 (1950-03-01), Brodin
patent: 3129172 (1964-04-01), Dickey
patent: 3378027 (1968-04-01), Fredericks
patent: 3574559 (1971-04-01), Kryzer
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