Tower-type melt granulation fertilizer special for improvement of acid soil and preparation method thereof
A tower-type melt granulation and acidic soil technology, applied in the direction of solid/semi-solid fertilizer, application, nitrogen fertilizer, etc., can solve the ecological environment and human survival hazards, unreasonable fertilization and farming management, and aggravate soil acidification, etc. Achieve the effects of improving acidic soil, nutrient balance, and reducing soil acidity
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Embodiment 1
[0029] 500 parts of urea, 230 parts of calcium magnesium phosphate fertilizer, 185 parts of potassium chloride, 60 parts of potassium humate, 25 parts of filler.
[0030] Step 1: Melt 500 parts of urea at high temperature (130°C-140°C), enter the buffer tank, pressurize it through the delivery pump, and send it to the mixing tank at the top of the tower after metering.
[0031] Step 2: Measure 230 parts of calcium magnesium phosphate fertilizer, 185 parts of potassium chloride, 60 parts of potassium humate, and 25 parts of filling material respectively, and send them into the mixer for thorough mixing. The mixed raw materials are sent to the mixing heater after being crushed and screened, heated to 70°C-80°C, and then lifted to the tower top silo by the bucket elevator.
[0032] Step 3: the heated mixed material in the tower top silo in step 2 is evenly measured by a screw weighing scale and sent into the mixing tank described in the above step 1, mixed by a high-speed shear m...
Embodiment 2
[0035] 500 parts of urea, 280 parts of calcium magnesium phosphate fertilizer, 170 parts of potassium chloride, 40 parts of potassium humate, and 10 parts of filler.
[0036] The specific implementation steps are the same as the implementation example 1.
[0037] The resulting product specification is 23-5-11
Embodiment 3
[0039] 500 parts of urea, 330 parts of calcium magnesium phosphate fertilizer, 160 parts of potassium chloride, 10 parts of potassium humate
[0040] The specific implementation steps are the same as the implementation example 1.
[0041] The resulting product specification is 23-6-10
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