Fertilizer types and their application
Compared with organic fertilizers, chemical fertilizers have the advantages of high nutrient content, rapid fertilizer efficiency, and ease of transportation.
There are many ways to classify fertilizers. There are two more commonly used methods: First, the classification of nutrients contained in chemical fertilizers. According to this method, chemical fertilizers can be divided into nitrogen fertilizers, phosphate fertilizers, potash fertilizers, trace fertilizers, and compound fertilizers. Among them, nitrogen fertilizer, phosphate fertilizer, and potassium fertilizer contain one of the three elements of fertilizer, which is called single fertilizer or single fertilizer. Compound fertilizer is a fertilizer containing two or more nutrients in three nutrients: nitrogen, phosphorus, and potassium. It contains two kinds of compound fertilizers called binary compound fertilizers, which contain three kinds of compound fertilizers. (Co) Fertilizer. Compound fertilizer refers to nitrogen, phosphorus, potassium three kinds of nutrients, at least two kinds of nutrient marked amount, fertilizer made by chemical methods or blending methods, including compound fertilizer, blended fertilizer, organic-inorganic compound fertilizer . Compound fertilizer refers to nitrogen, phosphorus, potassium three kinds of nutrients, at least two kinds of nutrient marked amount, made of chemical methods of fertilizer, is a kind of compound fertilizer. Fertilizer is a kind of compound fertilizer which is made up of three kinds of nutrients of nitrogen, phosphorus and potassium, and at least two kinds of nutrient content, which is made by dry blending method. Organic-inorganic compound fertilizers are compound fertilizers containing a certain amount of organic matter. The second is to classify fertilizers according to their speed. According to this method, chemical fertilizers can be divided into quick-acting fertilizers and slow-acting fertilizers. Fast-acting fertilizers refer to fertilizers that are quickly absorbed and utilized by crops, such as nitrogen fertilizers (other than lime nitrogen), water-soluble phosphate fertilizers, and potash fertilizers. Slow-acting fertilizers are fertilizers that are slow to absorb and use in crops, such as calcium, magnesium phosphate, phosphate rock, and steel slag phosphate. (Gao Jun Yang Xiaoyun Lu)
Cylindrical Johnson Screen is a wedge shaped wire welding filter element for solid-liquid separation. Cylindrical screen is a kind of Johnson screen and can be made into different shapes (Basket Shaped Johnson Screen, Nozzle Cap , Tubal Johnson Screen and Conical Johnson Screen and so on). Its filtration mode is filtering from the outside to the inside and filtering from the inside to the outside.
The minimum slot opening cylindrical Johnson screen is 25 um (0.001 inch) and the maximum slot opening cylindrical Johnson screen is 25 millimeter (1 inch).
The common material is 304, 321, 316 L, 904 L duplex stainless steel 2205, duplex stainless steel 2507, Monel alloy.etc.
It is widely used in many fields, such as petroleum refining and refining industry, water supply and sewage treatment, pulp and paper industry, mining and sand processing, construction industry, food filtration, nuclear power and so on.
Cylindrical Johnson Screen
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Xinxiang Shengda Filtration Technique Co., Ltd. , https://www.filtrations.nl