How to get NPK granules coated?

Processing sulfur coated urea in 15 t / h NPK fertilizer production line
Sulfur coated urea is a kind of coated slow release nitrogen fertilizer. In the process of NPK fertilizer production line, spherical urea is coated with a layer of molten sulfur to improve the physical properties of urea.

Sulfur coated urea is increasing in agricultural applications. With the increase of high concentration fertilizer application rate, the application amount of sulfur-containing super phosphate was relatively reduced, and the crop yield increased. The amount of desulfurization in soil increases, and the area of sulfur deficient land is expanding at home and abroad.

Therefore, the application of sulfur coated urea can not only improve the utilization rate of nitrogen, but also supplement the sulfur in soil.

Fertilizer Drying Machine for Chicken Manure
Fertilizer Drying Machine for Chicken Manure

Sulfur urea fertilizer production line equipment

Zhengzhou SX Heavy Industry Technology Co., Ltd. produces various NPK fertilizer production lines, organic fertilizer production lines and fertilizer granulation production lines. As shown in the figure, our plant specially designed a 15 t / h sulfur coated urea fertilizer production line. Sulfur urea production line equipment: 1 loader feeding hopper, 3 large angle belt conveyors, 1 rotary drum heater, 1 coating machine, 2 rotary drum powder machines and 1 fertilizer packaging machine for npk.

Processing technology of sulfur coated urea in NPK fertilizer production line

Urea particles are heated by a heater and then coated with a sulfur-containing outer film. After urea coating, it is sent to powder machine by large angle belt conveyor. The powder machine sprays particles to seal the cracks of the coating and reduce the biodegradation of the sulfur coating. Two series of machines are used to ensure the quality of fertilizer. The coating of NPK fertilizer production line on the outer layer of urea ensures the slow release of fertilizer efficiency.

The outer envelope provides a physical barrier for urea, so that urea is slowly permeated by water and decomposed by microorganism. In the soil environment, urea gradually diffuses through the envelope, and releases nutrients slowly through the envelope cracks and the structure formed naturally on the envelope surface.

Fertilizer Coating Process

Coated fertilizer is a kind of NPK compound fertilizer widely used in agricultural production. It is popular with farmers for its low cost and high fertilizer efficiency. When NPK chemical fertilizer production line produces compound fertilizer, the treatment of coating machine is increased, which greatly improves the influence of fertilizer on crops.

The controlled release time of coating controlled release fertilizer is long, and the fertilization effect can be as long as 2 months to 1 year. NPK coated fertilizer can promote root growth, make crops mature early, solve the problem of crop fertilizer shortage caused by severe drought, and create favorable conditions for high yield of various crops.

NPK coated fertilizers can be used in the production of many crops. The output of rice, wheat, peanuts, corn, cotton, tobacco, vegetables, fruit trees, flowers, lawns and other crops increased significantly.

How to process NPK fertilizer production line

In the process of coating fertilizer, NPK fertilizer production line uses various nutrients, such as blood acid as coating layer, and the fertilizer is coated by coating machine. The coating can greatly reduce the loss of fertilizer and soil fixation, and greatly improve the utilization rate of fertilizer. The proportion of NPK and its trace elements in coated fertilizer processed by NPK fertilizer production line is determined according to crop demand and different soil conditions.

When we use NPK fertilizer production line to process coated fertilizer, we can produce special or general coated compound fertilizer for crops. This special NPK compound fertilizer has high fertilizer efficiency.

The application amount should be reduced according to the specific situation of crops and soil. The time interval of fertilization should be determined according to the length of controlled release cycle.

Therefore, when farmers use coated compound fertilizer, the production cost will be reduced.
Coating fertilizer for NPK fertilizer production line

How to make organic compost fertilizer at industrial scale?

Composting process is to reduce moisture and decomposition odor through decomposition and fermentation, so that manure can be used. Organic fertilizer equipment for composting livestock manure, not only can eliminate odor, but also can be used in agricultural production, provide nutrients for crops, and greatly improve crop income.

Compost fermentation, temperature rise, make it harmless. The feces of livestock and poultry contain pathogenic bacteria, parasite eggs and weed seeds. Compost is treated by organic fertilizer equipment system, and harmful substances are destroyed by the rise of fermentation temperature. During the composting process, the temperature of the fermentation product continuously rises to 70 ° C, which is enough to kill pathogens and parasites.

Compost fermentation requires oxygen for microbial activities. We can use composting turning machines with organic composting equipment to mix materials, increase material air and increase the gap between fermented materials.

Composting turning machine

Composting turning machine for organic fertilizer processing
Composting turning machine can handle open and close compost and mix compost at the same time, which solves the problem of raw material treatment and has complete functions. The composting truck runs on the track, which improves the flexibility of the machine, improves the transmission efficiency of the machine, and saves the operation cost. The material was processed by composting truck, which shortened the fermentation time.

Powder organic fertilizer equipment

The organic matter content of compost is high, so it can be used as fertilizer to supplement the nutrients of crops. Just by treating these composts, organic fertilizer equipment can be used in farmland. The composting process of organic fertilizer equipment is very simple, mainly screening and crushing process. The compost is sent to the hopper, and the screening material of drum screen is crushed by the chain crusher, which is the finished composting product.