There are two production method of NPK liquid fertilizer, namely, the direct dissolution method and the reaction method.
What is the process of the direct dissolution method?
Raw material preparation: Choose N compounds, Suitable P and K, like urea (provides nitrogen), phosphoric acid (provides phosphorus), potassium chloride or potassium nitrate (provides potassium).
Dissolution: Add these solid raw materials to a stirring tank in proportion and add appropriate amount of water. During the agitation, heating may be necessary to accelerate dissolution.
Filtration: Passing a solution through a filtration device to remove impurities and undissolved particles.
Concentration and pH adjustment: Adjust solution concentration and pH as necessary.
Cooling and packaging: Cool the npk solution to room temperature before packaging.
What is the production process of the reaction method?
chemical reaction: This method uses a chemical reaction to generate the desired NPK compound. For example, Ammonium phosphate is produced by the reaction of ammonia gas with phosphoric acid, thus providing nitrogen and phosphorus.
Dissolution and mixing: dissolve the resulting compound with a potassium compound (For example, potassium chloride) in water and mix simultaneously.
Filtration and concentration adjustment: Filter to remove insoluble matter and adjust the concentration of the NPK solution as necessary.
pH adjustment and stabilization: Adjust the pH of the solution and add stabilizers to prevent precipitation.
Packaging: Package the prepared NPK liquid fertilizer.
What equipment is needed for these two NPK liquid fertilizer production method?
In the production process of NPK liquid fertilizer, Although the production methods of NPK liquid fertilizer are different, the equipment used is the same. Used feeding machine, reverse osmosis equipment, dosing tanks, chelation tanks, filling machines, etc.
feeding machine: It has a multi-container design and can precisely control the discharge amount. To ensure that nutrients such as N (nitrogen), P (match) and K. (potassium) are accurately proportioned.
Reverse osmosis equipment: Uses a special semi-permeable membrane with very small pores, usually around 0,0001 microns in size. Water molecules can pass through these pores, but most of the dissolved salts, the minerals, organic matter, bacteria, viruses and other impurities cannot. This can greatly improve water purity..
Dosing tank: The process of Npk liquid fertilizer production requires the addition of chelating agents. For this step you can use a measuring container. It has a stirring function inside. The mixed solution can also be introduced directly into the chelation tank.
Chelating tank: Our chelation tank YUSHUNXIN It is also equipped with a temperature and pH control system. It is equipped with filter media, such as filter meshes or filter elements, to intercept and physically remove solid particles and impurities from liquids. In addition to this, It is equipped with filter media, such as filter meshes or filter elements, to intercept and physically remove solid particles and impurities from liquids.
packaging equipment: filling machine of liquid fertilizers. You can package the solution in containers of appropriate size. For example, small packages are 250 ml a 1 L, medium packages are 2 L a 5 L, large packages are 10 L a 20 L and the barrels are 50 Hills.
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