1、Pelletizing Lime Powder into Mineral Fertilizer: Methods and Equipment

The transformation of lime powder into mineral fertilizer through pelletizing enhances its utility and application efficiency in various industries. By selecting appropriate raw materials and employing specialized granulation equipment, manufacturers can produce superior fertilizer granules.

2、Preparation method and application of lime nitrogen

Abstract: The invention provides a preparation method and application of lime nitrogen.

3、Granular lime nitrogen capable of quickly releasing fertilizer effect

A production process, lime nitrogen technology, applied in nitrogen fertilizers, cyanamide fertilizers, fertilization devices, etc., can solve the problems of fragility, small application surface of compound fertilizer particles, unstable adhesive performance, etc., and achieve the effect of fast decomposition.

4、Lime Nitrogen Powder NPK Compound Fertilizer Granulation Equipment

Granulation Process: The double roller press system efficiently converts lime nitrogen powder into uniform NPK compound fertilizer granules through high-pressure compression, ensuring consistent size and density.

5、Calcium Cyanamide (Lime Nitrogen): A Comprehensive Guide to Its

Calcium cyanamide, or lime nitrogen, is a multifunctional compound that plays a vital role in agriculture and industry. Its ability to act as a fertilizer, weed suppressant, and soil conditioner makes it a valuable tool for sustainable farming.

Nitrogen Fertilizer Production丨Dry ＆Wet Granulation 丨Design

Generally, there are 2 methods to help you prepare quality nitrogen fertilizer. Including wet granulation, dry granulation and bulk blending. You can choose the best one according to the material, budget, capacity, etc of your nitrogen fertilizer manufacturing project.

Lime nitrogen

Lime nitrogen is a multipurpose slow-acting granular nitrogen-calcium fertilizer. It is suitable for preparation of soil in greenhouses and beds before planting.

Lime nitrogen characteristics and application technology

Lime nitrogen should be used as base fertilizer and it is not suitable for top dressing and seed fertilizer. The basal fertilizer should be applied before sowing, and it is better to apply deep soil after spreading.

How Calcium Cyanamide (Lime Nitrogen) Enhances Soil Fertility and Crop

Cyanamide then decomposes into urea and ammonia, gradually releasing nitrogen in a plant-available form. This slow-release mechanism improves nitrogen use efficiency and reduces leaching losses.

From Industry to Farm: The Production of Nitrogen Fertilizers

To ensure sustainable development, it is necessary to develop more energy - efficient and environmentally friendly production methods for nitrogen fertilizers, as well as to improve the management of fertilizer use on the farm to minimize environmental damage.

Lime nitrogen is an essential nitrogen fertilizer commonly used in agricultural production as a base fertilizer or topdressing. It is a compound formed by the reaction of urea with limestone, with its main components being calcium carbonate and ammonia. Below, I will provide a detailed introduction to the process of converting lime nitrogen into granular nitrogen fertilizer.

Preparation Process of Lime Nitrogen

1. Raw Material Preparation:

   • Select suitable urea (carbamide) and limestone (calcite).
   • Ensure the limestone used is pure and free of impurities.

2. Chemical Reaction:

   • Mix urea and limestone in a specific ratio, typically 1:1.
   • During the reaction, the nitrogen in urea reacts with calcium carbonate in limestone to produce calcium carbonate and ammonia.

3. Reaction Conditions:

   • The reaction occurs at an appropriate temperature, usually at room temperature.
   • The reaction time ranges from several hours to days, depending on the concentration of reactants and reaction rate.

4. Product Treatment:

   • After the reaction, cool the mixture to room temperature, then filter, wash, and dry it.
   • The final product is a mixture of calcium carbonate and ammonia, which requires further processing to obtain granular lime nitrogen.

Preparation of Granular Lime Nitrogen

1. Crushing and Sieving:

   • Crush the calcium carbonate-ammonia mixture using a crusher to form fine particles.
   • Use sieves to screen the particles, removing oversized or undersized ones to obtain qualified lime nitrogen granules.

2. Drying and Packaging:

   • Dry the screened lime nitrogen granules in a drying device to remove moisture.
   • After drying, pack the granules into bags or drums for storage and use.

Application of Lime Nitrogen

1. Base Fertilizer Use:

   • Apply lime nitrogen as a base fertilizer during the early growth stage of crops to provide essential nitrogen for plant development.
   • Base fertilization increases soil nitrogen content, promoting crop growth.

2. Topdressing Use:

   • During crop growth, apply lime nitrogen as topdressing based on crop requirements.
   • Topdressing replenishes nitrogen consumed during growth, improving yield.

3. Precautions:

   • Avoid contact with alkaline substances when using lime nitrogen to prevent reactions.
   • Follow recommended dosages and application methods; excessive use may lead to soil acidification.

the preparation of lime nitrogen involves selecting raw materials, conducting chemical reactions, processing products, and forming granules. These steps enable the conversion of lime nitrogen into granular nitrogen fertilizer. As an important nitrogen source in agriculture, lime nitrogen effectively provides essential nitrogen for crop growth and development.