Manufacturing method of puffed particle compound fertilizer and product thereof
A technology of expanded granules and compound fertilizers, which is applied in the form of fertilizers, fertilizer mixtures, and fertilization devices. It can solve the problems of high tower production equipment investment, unstable biuret products, and steam consumption. Good effect of absorption and operation environment
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Embodiment 1
[0042] Take 20kg of urea, 20kg of monoammonium phosphate, 15kg of potassium chloride, and 40kg of clay, add them to the mixer and mix them evenly, then add them to the extruder. The granular material is dried by a drum dryer, cooled by a drum cooler, and then sieved by a vibrating screen. After packaging, it is a compound puffed particle containing 11.20% nitrogen, 10.00% phosphorus, 9.20% potassium, and 30.40% total nutrients. fertilizer.
Embodiment 2
[0044] Take urea 25kg, ammonium bicarbonate 5kg, monoammonium phosphate 10kg, potassium chloride 15kg, magnesium sulfate 2.0kg, ferrous sulfate 0.05kg, zinc sulfate 0.02kg, boric acid 0.03kg, acid blue pigment 0.01kg, attapulgite powder 42.89kg, Add it to the mixer and mix it evenly, then add it to the extruder, and expand the mixture into 4-6mm spherical particles at an expansion temperature of 60°C. The expanded particle material is dried by a vibrating fluidized bed dryer, and then cooled by a fluidized bed machine. After screening by vibrating sieve, after packaging, it will be a blue expanded granular compound fertilizer containing 13.35% nitrogen, 5.00% phosphorus, 9.00% potassium, and 42.15% total nutrients.
Embodiment 3
[0046] Take 26kg of urea, 5kg of ammonium chloride, 10kg of ammonium sulfate, 12kg of monoammonium phosphate, 10kg of potassium chloride, 0.1kg of urease inhibitor, 0.1kg of nitrification inhibitor, 0.01kg of acid red, and 36.79kg of zeolite powder, and add them to the mixer for mixing After homogenization, add it to the extruder, under the condition of puffing temperature 70°C, puff the mixture into 4~6mm spherical granules, dry it with an infrared dryer, cool it with a vibrating fluidized bed machine, and then sieve it with a vibrating sieve After packaging, it is a red expanded granule compound fertilizer containing 16.51% nitrogen, 6.00% phosphorus, 6.00% potassium, and 28.51% total nutrients containing slow-release agents.
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