Granular fertilizer slow-release coloring device
A granular fertilizer and coloring technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of polluting the growing environment of crops, endangering human health, and not easy to degrade, so as to improve the soil structure, improve the surface gloss, and smooth the appearance Effect
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[0033] Example 1,
[0034] Granular fertilizer slow-release coloring device, the structure is shown as figure 1 , Including: a quantitative feeder 1, a solution preparation device 2, a flow meter 3, a drum 4 and a finished product silo 5. The quantitative feeder 1 is connected to the feed port of the drum 4, and the solution preparation device 2 passes The liquid flow meter 3 is connected to the rotating drum 4, and the discharge port of the rotating drum 4 is connected to the finished product silo 5. The solution preparation device 2 is a pressure tank plus an air compressor, or a storage tank plus a liquid pump; the quantitative feeder 1 includes a belt scale and a conveyor belt. All components involved in the embodiments are conventional technologies in the art.
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[0035] Example 2,
[0036] A paint coloring agent for fertilizers, with the following parts by weight:
[0037] 4 parts of brown dye, 15 parts of 1wt% polyvinyl alcohol solution, 2 parts of sodium water glass with Baume degree of 25%, and 150 parts of water. The brown dye is food-grade chocolate brown. Mix 1wt% polyvinyl alcohol solution, sodium water glass and water, then add dye and stir evenly.
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[0038] Example 3.
[0039] A paint coloring agent for fertilizers, with the following parts by weight:
[0040] 5 parts of green dye, 20 parts of 0.8wt% polyvinyl alcohol solution, 3 parts of sodium water glass with 20% Baume degree, and 160 parts of water. The green dye is food grade fruit green. Mix 1wt% polyvinyl alcohol solution, sodium water glass and water, then add dye and stir evenly.
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