Synergistic composite fertilizer and method for preparing same
A technology of compound fertilizer and polyaspartic acid, applied in fertilization equipment, fertilizer mixture, application, etc., can solve problems such as troubles, achieve the effect of improving quality, improving absorption and utilization rate, and improving soil structure
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[0027] Example 1
[0028] The process flow of this embodiment is as figure 1 Shown is the production process of urea-based compound fertilizer, and its equipment and process method use existing equipment and process technology for producing urea-based compound fertilizer. The difference between this embodiment and the existing equipment is that a metering pump connected to the granulator is added before the granulator, and the aqueous solution of polyaspartic acid and citric acid is added to the granulator through the metering pump. The weight percentage of polyaspartic acid in the aqueous solution of polyaspartic acid and citric acid is 30%, and the weight percentage of citric acid is 15%. The flow rate of the metering pump is 100 kg / h. Polyaspartic acid and citric acid are mixed uniformly with other materials in the granulator, and the materials are partially melted, bonded and granulated by using the reaction heat of sulfuric acid and ammonia and the heat and moisture provided...
Example Embodiment
[0029] Example 2
[0030] The process flow of this embodiment is as figure 2 Shown is the production process of nitro compound fertilizer, and its equipment and process method use the existing equipment and process for producing nitro compound fertilizer. The difference between this embodiment and the existing equipment is that a metering pump connected to the granulator is added before the granulator. Add the 80% polyaspartic acid aqueous solution to the granulator through a metering pump with a flow rate of 750Kg / h; meanwhile, add zeolite powder at a flow rate of 2T / h and humic acid at a flow rate of 1T / h to the granulator. In the granulator. The above additives and other materials are uniformly mixed in the granulator, and the solid materials are bonded and granulated by using the heat and moisture provided by the concentrated ammonium nitrate solution and steam, and finally a synergistic nitro compound fertilizer with a production capacity of 20T / h is obtained. , After testing...
Example Embodiment
[0031] Example 3
[0032] The process flow of this embodiment is as image 3 Shown is the production process of sulfur-based compound fertilizer. The equipment and process method are the same as the existing equipment and process technology for the production of sulfur-based compound fertilizer. The difference from the existing equipment is that two sets are added before the granulator. The metering pump connected to the granulator. The 20% by weight aqueous solution containing polyaspartate sodium salt is added to the granulator through a metering pump with a flow rate of 100 kg / h; at the same time, the zeolite powder is added to the granulator in proportion to the amount of 20 kg / hour. hour. The above additives are uniformly mixed with potassium hydrogen sulfate, ammonium sulfate, superphosphate, urea, and monoammonium phosphate in the granulator, and granulated. In the end, 20 tons / hour of synergistic sulfur-based compound fertilizer was obtained, and the product quality was tes...
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