PRODUCTION OF GRANULAR MATTER OF HARDLY-WATER SOLUBLE FERTILIZER
PURPOSE:To easily and efficiently obtain the spherical granular matter having sufficient hardness and excellent flowability without using a binder, etc., by rotating the granular matter of the formed hardly water-soluble fertilizer at a low speed in the direction reverse from the rotating direction...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To easily and efficiently obtain the spherical granular matter having sufficient hardness and excellent flowability without using a binder, etc., by rotating the granular matter of the formed hardly water-soluble fertilizer at a low speed in the direction reverse from the rotating direction of a container. CONSTITUTION:The powder of the hardly-water soluble fertilizer and water are charged to a granulating machine consisting of the container (a) of a blind cylinder shape which is rotatable and has a discharge hole in the central part of the bottom, an agitator (b) which is provided in the position deviated from the center of rotation of this container (a) and a mixing scraper (c) provided in the position where the rotation of this agitator (b) is not hindered. While the container (a) is kept rotated and while the mixing scraper is held stopped or kept rotated in the direction reverse from the rotating direction of the container, the agitator (b) is rotated at a high speed in the direction reverse from the rotating direction of the container (a) to mix and knead the powder and the water and to form the granular matter. The agitator (b) is then rotated at a low speed in the direction reverse from the rotating direction of the container (a), by which the hardly-water soluble fertilizer is granulated to the granular matter of desired sizes, thus the desired granular matter is obtd. |
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